Support #1820
Updated by Victor Julien almost 8 years ago
I have the suricata in inline mode on a border router with Debian operating system, and I wonder what the best scenario for setting the parameters of host-os-policy, as in the current scenario configuration, has generated several module alerts stream: - SURICATA TCP duplicated option - SURICATA STREAM ESTABLISHED packet out of window - SURICATA STREAM ESTABLISHED invalid ack - SURICATA STREAM Packet with invalid ack Current configuration: - OS: Debian Wheezy - IP Suricata: 10.100.0.1 - IP network: 10.100.0.0/21,10.190.0.0/24 - IPs internet link: 183.X.X.X,201.X.X.X - Suricata 3.1 [edit: yaml removed] - suricata.yaml: %YAML 1.1 --- # Suricata configuration file. In addition to the comments describing all # options in this file, full documentation can be found at: # https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Suricatayaml ## ## Step 1: inform Suricata about your network ## vars: # more specifc is better for alert accuracy and performance address-groups: # IPs internet link 183.X.X.X,201.X.X.X HOME_NET: "[192.168.0.0/16,10.0.0.0/8,172.16.0.0/12,183.X.X.X,201.X.X.X]" #HOME_NET: "[192.168.0.0/16]" #HOME_NET: "[10.0.0.0/8]" #HOME_NET: "[172.16.0.0/12]" #HOME_NET: "any" EXTERNAL_NET: "!$HOME_NET" #EXTERNAL_NET: "any" HTTP_SERVERS: "$HOME_NET" SMTP_SERVERS: "$HOME_NET" SQL_SERVERS: "$HOME_NET" DNS_SERVERS: "$HOME_NET" TELNET_SERVERS: "$HOME_NET" AIM_SERVERS: "$EXTERNAL_NET" DNP3_SERVER: "$HOME_NET" DNP3_CLIENT: "$HOME_NET" MODBUS_CLIENT: "$HOME_NET" MODBUS_SERVER: "$HOME_NET" ENIP_CLIENT: "$HOME_NET" ENIP_SERVER: "$HOME_NET" port-groups: HTTP_PORTS: "80" SHELLCODE_PORTS: "!80" ORACLE_PORTS: 1521 SSH_PORTS: 22 DNP3_PORTS: 20000 MODBUS_PORTS: 502 # Servidores PBX SERVIDORES_PBX: "[10.100.7.163]" # Servidores Linux SERVIDORES_LINUX: "[$SERVIDORES_PBX,183.X.X.X,201.X.X.X,10.100.0.10,10.190.0.0/24]" ## ## Step 2: select the rules to enable or disable ## default-rule-path: /etc/suricata/rules rule-files: !include rules.yaml classification-file: /etc/suricata/rules/classification.config reference-config-file: /etc/suricata/rules/reference.config threshold-file: /etc/suricata/threshold.config ## ## Step 3: select outputs to enable ## # The default logging directory. Any log or output file will be # placed here if its not specified with a full path name. This can be # overridden with the -l command line parameter. default-log-dir: /var/log/suricata/ # global stats configuration stats: enabled: yes # The interval field (in seconds) controls at what interval # the loggers are invoked. interval: 60 # Tempo em segundos para a chamada do registro de estatísticas do suricata. # Aumentar este valor para que o arquivo não cresce drasticamente de tamanho. # Assegure que a rotação de logs esteja definida para o arquivo de estatísticas, # normalmente definido com o nome (stats.log). # Configure the type of alert (and other) logging you would like. outputs: # a line based alerts log similar to Snort's fast.log - fast: enabled: no filename: fast.log append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' # Extensible Event Format (nicknamed EVE) event log in JSON format - eve-log: enabled: yes filetype: regular #regular|syslog|unix_dgram|unix_stream|redis filename: eve.json #prefix: "@cee: " # prefix to prepend to each log entry # the following are valid when type: syslog above #identity: "suricata" #facility: local5 #level: Info ## possible levels: Emergency, Alert, Critical, ## Error, Warning, Notice, Info, Debug #redis: # server: 127.0.0.1 # port: 6379 # mode: list ## possible values: list (default), channel # key: suricata ## key or channel to use (default to suricata) # Redis pipelining set up. This will enable to only do a query every # 'batch-size' events. This should lower the latency induced by network # connection at the cost of some memory. There is no flushing implemented # so this setting as to be reserved to high traffic suricata. # pipelining: # enabled: yes ## set enable to yes to enable query pipelining # batch-size: 10 ## number of entry to keep in buffer types: - alert: payload: yes # enable dumping payload in Base64 # payload-buffer-size: 4kb # max size of payload buffer to output in eve-log payload-printable: yes # enable dumping payload in printable (lossy) format # packet: yes # enable dumping of packet (without stream segments) #http: yes # enable dumping of http fields #tls: yes # enable dumping of tls fields #ssh: yes # enable dumping of ssh fields #smtp: yes # enable dumping of smtp fields # HTTP X-Forwarded-For support by adding an extra field or overwriting # the source or destination IP address (depending on flow direction) # with the one reported in the X-Forwarded-For HTTP header. This is # helpful when reviewing alerts for traffic that is being reverse # or forward proxied. xff: enabled: no # Two operation modes are available, "extra-data" and "overwrite". mode: extra-data # Two proxy deployments are supported, "reverse" and "forward". In # a "reverse" deployment the IP address used is the last one, in a # "forward" deployment the first IP address is used. deployment: reverse # Header name where the actual IP address will be reported, if more # than one IP address is present, the last IP address will be the # one taken into consideration. header: X-Forwarded-For #- http: # extended: yes # enable this for extended logging information # custom allows additional http fields to be included in eve-log # the example below adds three additional fields when uncommented #custom: [Accept-Encoding, Accept-Language, Authorization] #- dns #- tls: # extended: yes # enable this for extended logging information #- files: # force-magic: no # force logging magic on all logged files # force-md5: no # force logging of md5 checksums #- drop: # alerts: no # log alerts that caused drops #- smtp: #extended: yes # enable this for extended logging information # this includes: bcc, message-id, subject, x_mailer, user-agent # custom fields logging from the list: # reply-to, bcc, message-id, subject, x-mailer, user-agent, received, # x-originating-ip, in-reply-to, references, importance, priority, # sensitivity, organization, content-md5, date #custom: [received, x-mailer, x-originating-ip, relays, reply-to, bcc] # output md5 of fields: body, subject # for the body you need to set app-layer.protocols.smtp.mime.body-md5 # to yes #md5: [body, subject] #- ssh - stats: totals: yes # stats for all threads merged together threads: no # per thread stats deltas: no # include delta values # bi-directional flows #- flow # uni-directional flows #- netflow # alert output for use with Barnyard2 - unified2-alert: enabled: no filename: unified2.alert # File size limit. Can be specified in kb, mb, gb. Just a number # is parsed as bytes. #limit: 32mb # Sensor ID field of unified2 alerts. #sensor-id: 0 # Include payload of packets related to alerts. Defaults to true, set to # false if payload is not required. #payload: yes # HTTP X-Forwarded-For support by adding the unified2 extra header or # overwriting the source or destination IP address (depending on flow # direction) with the one reported in the X-Forwarded-For HTTP header. # This is helpful when reviewing alerts for traffic that is being reverse # or forward proxied. xff: enabled: no # Two operation modes are available, "extra-data" and "overwrite". Note # that in the "overwrite" mode, if the reported IP address in the HTTP # X-Forwarded-For header is of a different version of the packet # received, it will fall-back to "extra-data" mode. mode: extra-data # Two proxy deployments are supported, "reverse" and "forward". In # a "reverse" deployment the IP address used is the last one, in a # "forward" deployment the first IP address is used. deployment: reverse # Header name where the actual IP address will be reported, if more # than one IP address is present, the last IP address will be the # one taken into consideration. header: X-Forwarded-For # a line based log of HTTP requests (no alerts) - http-log: enabled: no filename: http.log append: yes #extended: yes # enable this for extended logging information #custom: yes # enabled the custom logging format (defined by customformat) #customformat: "%{%D-%H:%M:%S}t.%z %{X-Forwarded-For}i %H %m %h %u %s %B %a:%p -> %A:%P" #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' # a line based log of TLS handshake parameters (no alerts) - tls-log: enabled: no # Log TLS connections. filename: tls.log # File to store TLS logs. append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' #extended: yes # Log extended information like fingerprint # output module to store certificates chain to disk - tls-store: enabled: no #certs-log-dir: certs # directory to store the certificates files # a line based log of DNS requests and/or replies (no alerts) - dns-log: enabled: no filename: dns.log append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' # Packet log... log packets in pcap format. 3 modes of operation: "normal" # "multi" and "sguil". # # In normal mode a pcap file "filename" is created in the default-log-dir, # or are as specified by "dir". # In multi mode, a file is created per thread. This will perform much # better, but will create multiple files where 'normal' would create one. # In multi mode the filename takes a few special variables: # - %n -- thread number # - %i -- thread id # - %t -- timestamp (secs or secs.usecs based on 'ts-format' # E.g. filename: pcap.%n.%t # # Note that it's possible to use directories, but the directories are not # created by Suricata. E.g. filename: pcaps/%n/log.%s will log into the # per thread directory. # # Also note that the limit and max-files settings are enforced per thread. # So the size limit when using 8 threads with 1000mb files and 2000 files # is: 8*1000*2000 ~ 16TiB. # # In Sguil mode "dir" indicates the base directory. In this base dir the # pcaps are created in th directory structure Sguil expects: # # $sguil-base-dir/YYYY-MM-DD/$filename.<timestamp> # # By default all packets are logged except: # - TCP streams beyond stream.reassembly.depth # - encrypted streams after the key exchange # - pcap-log: enabled: no filename: log.pcap # File size limit. Can be specified in kb, mb, gb. Just a number # is parsed as bytes. limit: 1000mb # If set to a value will enable ring buffer mode. Will keep Maximum of "max-files" of size "limit" max-files: 2000 mode: normal # normal, multi or sguil. #sguil-base-dir: /nsm_data/ #ts-format: usec # sec or usec second format (default) is filename.sec usec is filename.sec.usec use-stream-depth: no #If set to "yes" packets seen after reaching stream inspection depth are ignored. "no" logs all packets honor-pass-rules: no # If set to "yes", flows in which a pass rule matched will stopped being logged. # a full alerts log containing much information for signature writers # or for investigating suspected false positives. - alert-debug: enabled: no filename: alert-debug.log append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' # alert output to prelude (http://www.prelude-technologies.com/) only # available if Suricata has been compiled with --enable-prelude - alert-prelude: enabled: no profile: suricata log-packet-content: no log-packet-header: yes # Stats.log contains data from various counters of the suricata engine. - stats: enabled: no filename: stats.log totals: yes # stats for all threads merged together threads: no # per thread stats #null-values: yes # print counters that have value 0 # a line based alerts log similar to fast.log into syslog - syslog: enabled: no # reported identity to syslog. If ommited the program name (usually # suricata) will be used. #identity: "suricata" facility: local5 #level: Info ## possible levels: Emergency, Alert, Critical, ## Error, Warning, Notice, Info, Debug # a line based information for dropped packets in IPS mode - drop: enabled: no filename: drop.log append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' # output module to store extracted files to disk # # The files are stored to the log-dir in a format "file.<id>" where <id> is # an incrementing number starting at 1. For each file "file.<id>" a meta # file "file.<id>.meta" is created. # # File extraction depends on a lot of things to be fully done: # - stream reassembly depth. For optimal results, set this to 0 (unlimited) # - http request / response body sizes. Again set to 0 for optimal results. # - rules that contain the "filestore" keyword. - file-store: enabled: no # set to yes to enable log-dir: files # directory to store the files force-magic: no # force logging magic on all stored files force-md5: no # force logging of md5 checksums force-filestore: no # force storing of all files #waldo: file.waldo # waldo file to store the file_id across runs # output module to log files tracked in a easily parsable json format - file-log: enabled: no filename: files-json.log append: yes #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram' force-magic: no # force logging magic on all logged files force-md5: no # force logging of md5 checksums # Log TCP data after stream normalization # 2 types: file or dir. File logs into a single logfile. Dir creates # 2 files per TCP session and stores the raw TCP data into them. # Using 'both' will enable both file and dir modes. # # Note: limited by stream.depth - tcp-data: enabled: no type: file filename: tcp-data.log # Log HTTP body data after normalization, dechunking and unzipping. # 2 types: file or dir. File logs into a single logfile. Dir creates # 2 files per HTTP session and stores the normalized data into them. # Using 'both' will enable both file and dir modes. # # Note: limited by the body limit settings - http-body-data: enabled: no type: file filename: http-data.log # Lua Output Support - execute lua script to generate alert and event # output. # Documented at: # https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Lua_Output - lua: enabled: no #scripts-dir: /etc/suricata/lua-output/ scripts: # - script1.lua # Logging configuration. This is not about logging IDS alerts/events, but # output about what Suricata is doing, like startup messages, errors, etc. logging: # The default log level, can be overridden in an output section. # Note that debug level logging will only be emitted if Suricata was # compiled with the --enable-debug configure option. # # This value is overriden by the SC_LOG_LEVEL env var. default-log-level: info # The default output format. Optional parameter, should default to # something reasonable if not provided. Can be overriden in an # output section. You can leave this out to get the default. # # This value is overriden by the SC_LOG_FORMAT env var. #default-log-format: "[%i] %t - (%f:%l) <%d> (%n) -- " # A regex to filter output. Can be overridden in an output section. # Defaults to empty (no filter). # # This value is overriden by the SC_LOG_OP_FILTER env var. default-output-filter: # Define your logging outputs. If none are defined, or they are all # disabled you will get the default - console output. outputs: - console: enabled: no # type: json - file: enabled: yes level: info filename: /var/log/suricata/suricata.log # type: json - syslog: enabled: no facility: local5 format: "[%i] <%d> -- " # type: json ## ## Step 4: configure common capture settings ## ## See "Advanced Capture Options" below for more options, including NETMAP ## and PF_RING. ## # Linux high speed capture support af-packet: - interface: eth0 # Number of receive threads. "auto" uses the number of cores #threads: auto # Default clusterid. AF_PACKET will load balance packets based on flow. cluster-id: 99 # Default AF_PACKET cluster type. AF_PACKET can load balance per flow or per hash. # This is only supported for Linux kernel > 3.1 # possible value are: # * cluster_round_robin: round robin load balancing # * cluster_flow: all packets of a given flow are send to the same socket # * cluster_cpu: all packets treated in kernel by a CPU are send to the same socket # * cluster_qm: all packets linked by network card to a RSS queue are sent to the same # socket. Requires at least Linux 3.14. # * cluster_random: packets are sent randomly to sockets but with an equipartition. # Requires at least Linux 3.14. # * cluster_rollover: kernel rotates between sockets filling each socket before moving # to the next. Requires at least Linux 3.10. # Recommended modes are cluster_flow on most boxes and cluster_cpu or cluster_qm on system # with capture card using RSS (require cpu affinity tuning and system irq tuning) cluster-type: cluster_flow # In some fragmentation case, the hash can not be computed. If "defrag" is set # to yes, the kernel will do the needed defragmentation before sending the packets. defrag: yes # After Linux kernel 3.10 it is possible to activate the rollover option: if a socket is # full then kernel will send the packet on the next socket with room available. This option # can minimize packet drop and increase the treated bandwidth on single intensive flow. #rollover: yes # To use the ring feature of AF_PACKET, set 'use-mmap' to yes #use-mmap: yes # Lock memory map to avoid it goes to swap. Be careful that over suscribing could lock # your system #mmap-locked: yes # Use experimental tpacket_v3 capture mode, only active if use-mmap is true #tpacket-v3: yes # Ring size will be computed with respect to max_pending_packets and number # of threads. You can set manually the ring size in number of packets by setting # the following value. If you are using flow cluster-type and have really network # intensive single-flow you could want to set the ring-size independently of the number # of threads: #ring-size: 2048 # Block size is used by tpacket_v3 only. It should set to a value high enough to contain # a decent number of packets. Size is in bytes so please consider your MTU. It should be # a power of 2 and it must be multiple of page size (usually 4096). #block-size: 32768 # tpacket_v3 block timeout: an open block is passed to userspace if it is not # filled after block-timeout milliseconds. #block-timeout: 10 # On busy system, this could help to set it to yes to recover from a packet drop # phase. This will result in some packets (at max a ring flush) being non treated. #use-emergency-flush: yes # recv buffer size, increase value could improve performance # buffer-size: 32768 # Set to yes to disable promiscuous mode # disable-promisc: no # Choose checksum verification mode for the interface. At the moment # of the capture, some packets may be with an invalid checksum due to # offloading to the network card of the checksum computation. # Possible values are: # - kernel: use indication sent by kernel for each packet (default) # - yes: checksum validation is forced # - no: checksum validation is disabled # - auto: suricata uses a statistical approach to detect when # checksum off-loading is used. # Warning: 'checksum-validation' must be set to yes to have any validation #checksum-checks: kernel # BPF filter to apply to this interface. The pcap filter syntax apply here. #bpf-filter: port 80 or udp # You can use the following variables to activate AF_PACKET tap or IPS mode. # If copy-mode is set to ips or tap, the traffic coming to the current # interface will be copied to the copy-iface interface. If 'tap' is set, the # copy is complete. If 'ips' is set, the packet matching a 'drop' action # will not be copied. #copy-mode: ips #copy-iface: eth1 # Put default values here. These will be used for an interface that is not # in the list above. - interface: default #threads: auto #use-mmap: no #rollover: yes #tpacket-v3: yes # Cross platform libpcap capture support pcap: - interface: eth0 # On Linux, pcap will try to use mmaped capture and will use buffer-size # as total of memory used by the ring. So set this to something bigger # than 1% of your bandwidth. #buffer-size: 16777216 #bpf-filter: "tcp and port 25" # Choose checksum verification mode for the interface. At the moment # of the capture, some packets may be with an invalid checksum due to # offloading to the network card of the checksum computation. # Possible values are: # - yes: checksum validation is forced # - no: checksum validation is disabled # - auto: suricata uses a statistical approach to detect when # checksum off-loading is used. (default) # Warning: 'checksum-validation' must be set to yes to have any validation #checksum-checks: auto # With some accelerator cards using a modified libpcap (like myricom), you # may want to have the same number of capture threads as the number of capture # rings. In this case, set up the threads variable to N to start N threads # listening on the same interface. #threads: 16 # set to no to disable promiscuous mode: #promisc: no # set snaplen, if not set it defaults to MTU if MTU can be known # via ioctl call and to full capture if not. #snaplen: 1518 # Put default values here - interface: default #checksum-checks: auto # Settings for reading pcap files pcap-file: # Possible values are: # - yes: checksum validation is forced # - no: checksum validation is disabled # - auto: suricata uses a statistical approach to detect when # checksum off-loading is used. (default) # Warning: 'checksum-validation' must be set to yes to have checksum tested checksum-checks: auto # See "Advanced Capture Options" below for more options, including NETMAP # and PF_RING. ## ## Step 5: App Layer Protocol Configuration ## # Configure the app-layer parsers. The protocols section details each # protocol. # # The option "enabled" takes 3 values - "yes", "no", "detection-only". # "yes" enables both detection and the parser, "no" disables both, and # "detection-only" enables protocol detection only (parser disabled). app-layer: protocols: tls: enabled: yes detection-ports: dp: 443 #no-reassemble: yes dcerpc: enabled: yes ftp: enabled: yes ssh: enabled: yes smtp: enabled: yes # Configure SMTP-MIME Decoder mime: # Decode MIME messages from SMTP transactions # (may be resource intensive) # This field supercedes all others because it turns the entire # process on or off decode-mime: yes # Decode MIME entity bodies (ie. base64, quoted-printable, etc.) decode-base64: yes decode-quoted-printable: yes # Maximum bytes per header data value stored in the data structure # (default is 2000) header-value-depth: 2000 # Extract URLs and save in state data structure extract-urls: yes # Set to yes to compute the md5 of the mail body. You will then # be able to journalize it. body-md5: no # Configure inspected-tracker for file_data keyword inspected-tracker: content-limit: 100000 content-inspect-min-size: 32768 content-inspect-window: 4096 imap: enabled: detection-only msn: enabled: detection-only smb: enabled: yes detection-ports: dp: 139 # Note: Modbus probe parser is minimalist due to the poor significant field # Only Modbus message length (greater than Modbus header length) # And Protocol ID (equal to 0) are checked in probing parser # It is important to enable detection port and define Modbus port # to avoid false positive modbus: # How many unreplied Modbus requests are considered a flood. # If the limit is reached, app-layer-event:modbus.flooded; will match. #request-flood: 500 enabled: no detection-ports: dp: 502 # According to MODBUS Messaging on TCP/IP Implementation Guide V1.0b, it # is recommended to keep the TCP connection opened with a remote device # and not to open and close it for each MODBUS/TCP transaction. In that # case, it is important to set the depth of the stream reassembling as # unlimited (stream.reassembly.depth: 0) # smb2 detection is disabled internally inside the engine. #smb2: # enabled: yes dns: # memcaps. Globally and per flow/state. #global-memcap: 16mb #state-memcap: 512kb # How many unreplied DNS requests are considered a flood. # If the limit is reached, app-layer-event:dns.flooded; will match. #request-flood: 500 tcp: enabled: yes detection-ports: dp: 53 udp: enabled: yes detection-ports: dp: 53 http: enabled: yes # memcap: 64mb # default-config: Used when no server-config matches # personality: List of personalities used by default # request-body-limit: Limit reassembly of request body for inspection # by http_client_body & pcre /P option. # response-body-limit: Limit reassembly of response body for inspection # by file_data, http_server_body & pcre /Q option. # double-decode-path: Double decode path section of the URI # double-decode-query: Double decode query section of the URI # response-body-decompress-layer-limit: # Limit to how many layers of compression will be # decompressed. Defaults to 2. # # server-config: List of server configurations to use if address matches # address: List of ip addresses or networks for this block # personalitiy: List of personalities used by this block # request-body-limit: Limit reassembly of request body for inspection # by http_client_body & pcre /P option. # response-body-limit: Limit reassembly of response body for inspection # by file_data, http_server_body & pcre /Q option. # double-decode-path: Double decode path section of the URI # double-decode-query: Double decode query section of the URI # # uri-include-all: Include all parts of the URI. By default the # 'scheme', username/password, hostname and port # are excluded. Setting this option to true adds # all of them to the normalized uri as inspected # by http_uri, urilen, pcre with /U and the other # keywords that inspect the normalized uri. # Note that this does not affect http_raw_uri. # Also, note that including all was the default in # 1.4 and 2.0beta1. # # meta-field-limit: Hard size limit for request and response size # limits. Applies to request line and headers, # response line and headers. Does not apply to # request or response bodies. Default is 18k. # If this limit is reached an event is raised. # # Currently Available Personalities: # Minimal, Generic, IDS (default), IIS_4_0, IIS_5_0, IIS_5_1, IIS_6_0, # IIS_7_0, IIS_7_5, Apache_2 libhtp: default-config: personality: IDS # Can be specified in kb, mb, gb. Just a number indicates # it's in bytes. request-body-limit: 150kb # Limite de remontagem do corpo da solicitação para a inspeção. Defini-lo para 0 irá inspecionar todo o corpo. # Pode ser especificado em kb, mb, gb. Apenas um número indica que está em bytes. response-body-limit: 150kb # Limite de remontagem do corpo da resposta para a inspeção. Defini-lo para 0 irá inspecionar todo o corpo. # Pode ser especificado em kb, mb, gb. Apenas um número indica que está em bytes. # inspection limits request-body-minimal-inspect-size: 32kb request-body-inspect-window: 4kb response-body-minimal-inspect-size: 40kb response-body-inspect-window: 16kb # response body decompression (0 disables) response-body-decompress-layer-limit: 2 # auto will use http-body-inline mode in IPS mode, yes or no set it statically http-body-inline: auto # Take a random value for inspection sizes around the specified value. # This lower the risk of some evasion technics but could lead # detection change between runs. It is set to 'yes' by default. #randomize-inspection-sizes: yes # If randomize-inspection-sizes is active, the value of various # inspection size will be choosen in the [1 - range%, 1 + range%] # range # Default value of randomize-inspection-range is 10. #randomize-inspection-range: 10 # decoding double-decode-path: no double-decode-query: no server-config: #- apache: # address: [192.168.1.0/24, 127.0.0.0/8, "::1"] # personality: Apache_2 # # Can be specified in kb, mb, gb. Just a number indicates # # it's in bytes. # request-body-limit: 4096 # response-body-limit: 4096 # double-decode-path: no # double-decode-query: no #- iis7: # address: # - 192.168.0.0/24 # - 192.168.10.0/24 # personality: IIS_7_0 # # Can be specified in kb, mb, gb. Just a number indicates # # it's in bytes. # request-body-limit: 4096 # response-body-limit: 4096 # double-decode-path: no # double-decode-query: no # Limit for the maximum number of asn1 frames to decode (default 256) asn1-max-frames: 256 ############################################################################## ## ## Advanced settings below ## ############################################################################## ## ## Run Options ## # Run suricata as user and group. #run-as: # user: suri # group: suri # Some logging module will use that name in event as identifier. The default # value is the hostname #sensor-name: suricata # Default pid file. # Will use this file if no --pidfile in command options. #pid-file: /var/run/suricata.pid # Daemon working directory # Suricata will change directory to this one if provided # Default: "/" #daemon-directory: "/" # Suricata core dump configuration. Limits the size of the core dump file to # approximately max-dump. The actual core dump size will be a multiple of the # page size. Core dumps that would be larger than max-dump are truncated. On # Linux, the actual core dump size may be a few pages larger than max-dump. # Setting max-dump to 0 disables core dumping. # Setting max-dump to 'unlimited' will give the full core dump file. # On 32-bit Linux, a max-dump value >= ULONG_MAX may cause the core dump size # to be 'unlimited'. coredump: max-dump: unlimited # If suricata box is a router for the sniffed networks, set it to 'router'. If # it is a pure sniffing setup, set it to 'sniffer-only'. # If set to auto, the variable is internally switch to 'router' in IPS mode # and 'sniffer-only' in IDS mode. # This feature is currently only used by the reject* keywords. host-mode: auto # Number of packets preallocated per thread. The default is 1024. A higher number # will make sure each CPU will be more easily kept busy, but may negatively # impact caching. # # If you are using the CUDA pattern matcher (mpm-algo: ac-cuda), different rules # apply. In that case try something like 60000 or more. This is because the CUDA # pattern matcher buffers and scans as many packets as possible in parallel. #max-pending-packets: 1024 # Runmode the engine should use. Please check --list-runmodes to get the available # runmodes for each packet acquisition method. Defaults to "autofp" (auto flow pinned # load balancing). #runmode: autofp # Specifies the kind of flow load balancer used by the flow pinned autofp mode. # # Supported schedulers are: # # round-robin - Flows assigned to threads in a round robin fashion. # active-packets - Flows assigned to threads that have the lowest number of # unprocessed packets (default). # hash - Flow alloted usihng the address hash. More of a random # technique. Was the default in Suricata 1.2.1 and older. # #autofp-scheduler: active-packets # Preallocated size for packet. Default is 1514 which is the classical # size for pcap on ethernet. You should adjust this value to the highest # packet size (MTU + hardware header) on your system. #default-packet-size: 1514 # Unix command socket can be used to pass commands to suricata. # An external tool can then connect to get information from suricata # or trigger some modifications of the engine. Set enabled to yes # to activate the feature. You can use the filename variable to set # the file name of the socket. unix-command: enabled: no #filename: custom.socket # Magic file. The extension .mgc is added to the value here. #magic-file: /usr/share/file/magic #magic-file: legacy: uricontent: enabled ## ## Detection settings ## # Set the order of alerts bassed on actions # The default order is pass, drop, reject, alert # action-order: # - pass # - drop # - reject # - alert # IP Reputation #reputation-categories-file: /etc/suricata/iprep/categories.txt #default-reputation-path: /etc/suricata/iprep #reputation-files: # - reputation.list # When run with the option --engine-analysis, the engine will read each of # the parameters below, and print reports for each of the enabled sections # and exit. The reports are printed to a file in the default log dir # given by the parameter "default-log-dir", with engine reporting # subsection below printing reports in its own report file. engine-analysis: # enables printing reports for fast-pattern for every rule. rules-fast-pattern: yes # enables printing reports for each rule rules: yes #recursion and match limits for PCRE where supported pcre: match-limit: 3500 match-limit-recursion: 1500 ## ## Advanced Traffic Tracking and Reconstruction Settings ## # Host specific policies for defragmentation and TCP stream # reassembly. The host OS lookup is done using a radix tree, just # like a routing table so the most specific entry matches. host-os-policy: # Make the default policy windows. windows: [0.0.0.0/0] bsd: [] bsd-right: [] old-linux: [] linux: "$SERVIDORES_LINUX" # linux: [] old-solaris: [] solaris: [] hpux10: [] hpux11: [] irix: [] macos: [] vista: [] windows2k3: [] # Defrag settings: defrag: memcap: 32mb hash-size: 65536 trackers: 65535 # number of defragmented flows to follow max-frags: 65535 # number of fragments to keep (higher than trackers) prealloc: yes timeout: 60 # Enable defrag per host settings # host-config: # # - dmz: # timeout: 30 # address: [192.168.1.0/24, 127.0.0.0/8, 1.1.1.0/24, 2.2.2.0/24, "1.1.1.1", "2.2.2.2", "::1"] # # - lan: # timeout: 45 # address: # - 192.168.0.0/24 # - 192.168.10.0/24 # - 172.16.14.0/24 # Flow settings: # By default, the reserved memory (memcap) for flows is 32MB. This is the limit # for flow allocation inside the engine. You can change this value to allow # more memory usage for flows. # The hash-size determine the size of the hash used to identify flows inside # the engine, and by default the value is 65536. # At the startup, the engine can preallocate a number of flows, to get a better # performance. The number of flows preallocated is 10000 by default. # emergency-recovery is the percentage of flows that the engine need to # prune before unsetting the emergency state. The emergency state is activated # when the memcap limit is reached, allowing to create new flows, but # prunning them with the emergency timeouts (they are defined below). # If the memcap is reached, the engine will try to prune flows # with the default timeouts. If it doens't find a flow to prune, it will set # the emergency bit and it will try again with more agressive timeouts. # If that doesn't work, then it will try to kill the last time seen flows # not in use. # The memcap can be specified in kb, mb, gb. Just a number indicates it's # in bytes. flow: memcap: 128mb hash-size: 65536 prealloc: 10000 emergency-recovery: 30 #managers: 1 # default to one flow manager #recyclers: 1 # default to one flow recycler thread # This option controls the use of vlan ids in the flow (and defrag) # hashing. Normally this should be enabled, but in some (broken) # setups where both sides of a flow are not tagged with the same vlan # tag, we can ignore the vlan id's in the flow hashing. vlan: use-for-tracking: true # Specific timeouts for flows. Here you can specify the timeouts that the # active flows will wait to transit from the current state to another, on each # protocol. The value of "new" determine the seconds to wait after a hanshake or # stream startup before the engine free the data of that flow it doesn't # change the state to established (usually if we don't receive more packets # of that flow). The value of "established" is the amount of # seconds that the engine will wait to free the flow if it spend that amount # without receiving new packets or closing the connection. "closed" is the # amount of time to wait after a flow is closed (usually zero). # # There's an emergency mode that will become active under attack circumstances, # making the engine to check flow status faster. This configuration variables # use the prefix "emergency-" and work similar as the normal ones. # Some timeouts doesn't apply to all the protocols, like "closed", for udp and # icmp. flow-timeouts: default: new: 30 established: 300 closed: 0 emergency-new: 10 emergency-established: 100 emergency-closed: 0 tcp: new: 60 established: 600 closed: 60 emergency-new: 5 emergency-established: 100 emergency-closed: 10 udp: new: 30 established: 300 emergency-new: 10 emergency-established: 100 icmp: new: 30 established: 300 emergency-new: 10 emergency-established: 100 # Stream engine settings. Here the TCP stream tracking and reassembly # engine is configured. # # stream: # memcap: 32mb # Can be specified in kb, mb, gb. Just a # # number indicates it's in bytes. # checksum-validation: yes # To validate the checksum of received # # packet. If csum validation is specified as # # "yes", then packet with invalid csum will not # # be processed by the engine stream/app layer. # # Warning: locally generated trafic can be # # generated without checksum due to hardware offload # # of checksum. You can control the handling of checksum # # on a per-interface basis via the 'checksum-checks' # # option # prealloc-sessions: 2k # 2k sessions prealloc'd per stream thread # midstream: false # don't allow midstream session pickups # async-oneside: false # don't enable async stream handling # inline: no # stream inline mode # max-synack-queued: 5 # Max different SYN/ACKs to queue # # reassembly: # memcap: 64mb # Can be specified in kb, mb, gb. Just a number # # indicates it's in bytes. # depth: 1mb # Can be specified in kb, mb, gb. Just a number # # indicates it's in bytes. # toserver-chunk-size: 2560 # inspect raw stream in chunks of at least # # this size. Can be specified in kb, mb, # # gb. Just a number indicates it's in bytes. # # The max acceptable size is 4024 bytes. # toclient-chunk-size: 2560 # inspect raw stream in chunks of at least # # this size. Can be specified in kb, mb, # # gb. Just a number indicates it's in bytes. # # The max acceptable size is 4024 bytes. # randomize-chunk-size: yes # Take a random value for chunk size around the specified value. # # This lower the risk of some evasion technics but could lead # # detection change between runs. It is set to 'yes' by default. # randomize-chunk-range: 10 # If randomize-chunk-size is active, the value of chunk-size is # # a random value between (1 - randomize-chunk-range/100)*toserver-chunk-size # # and (1 + randomize-chunk-range/100)*toserver-chunk-size and the same # # calculation for toclient-chunk-size. # # Default value of randomize-chunk-range is 10. # # raw: yes # 'Raw' reassembly enabled or disabled. # # raw is for content inspection by detection # # engine. # # chunk-prealloc: 250 # Number of preallocated stream chunks. These # # are used during stream inspection (raw). # segments: # Settings for reassembly segment pool. # - size: 4 # Size of the (data)segment for a pool # prealloc: 256 # Number of segments to prealloc and keep # # in the pool. # zero-copy-size: 128 # This option sets in bytes the value at # # which segment data is passed to the app # # layer API directly. Data sizes equal to # # and higher than the value set are passed # # on directly. # stream: memcap: 256mb # Quantidade de fluxo de informação para manter na memória. # Pode ser especificado em kb, mb, gb. Apenas um número indica que está em bytes. checksum-validation: no # Valor "no", desabilita checksum de pacotes. Valor "yes", rejeita pacotes com checksum inválidos. inline: auto # auto will use inline mode in IPS mode, yes or no set it statically reassembly: memcap: 512mb # Quantidade de pacotes para manter na memória. # Pode ser especificado em kb, mb, gb. Apenas um número indica que está em bytes. depth: 1mb # reassemble 1mb into a stream toserver-chunk-size: 2560 toclient-chunk-size: 2560 randomize-chunk-size: yes #randomize-chunk-range: 10 #raw: yes #chunk-prealloc: 250 #segments: # - size: 4 # prealloc: 256 # - size: 16 # prealloc: 512 # - size: 112 # prealloc: 512 # - size: 248 # prealloc: 512 # - size: 512 # prealloc: 512 # - size: 768 # prealloc: 1024 # - size: 1448 # prealloc: 1024 # - size: 65535 # prealloc: 128 #zero-copy-size: 128 # Host table: # # Host table is used by tagging and per host thresholding subsystems. # host: hash-size: 4096 prealloc: 1000 memcap: 32mb # IP Pair table: # # Used by xbits 'ippair' tracking. # #ippair: # hash-size: 4096 # prealloc: 1000 # memcap: 32mb ## ## Performance tuning and profiling ## # The detection engine builds internal groups of signatures. The engine # allow us to specify the profile to use for them, to manage memory on an # efficient way keeping a good performance. For the profile keyword you # can use the words "low", "medium", "high" or "custom". If you use custom # make sure to define the values at "- custom-values" as your convenience. # Usually you would prefer medium/high/low. # # "sgh mpm-context", indicates how the staging should allot mpm contexts for # the signature groups. "single" indicates the use of a single context for # all the signature group heads. "full" indicates a mpm-context for each # group head. "auto" lets the engine decide the distribution of contexts # based on the information the engine gathers on the patterns from each # group head. # # The option inspection-recursion-limit is used to limit the recursive calls # in the content inspection code. For certain payload-sig combinations, we # might end up taking too much time in the content inspection code. # If the argument specified is 0, the engine uses an internally defined # default limit. On not specifying a value, we use no limits on the recursion. detect: profile: high # O equilíbrio entre desempenho e uso de memória custom-values: toclient-groups: 3 toserver-groups: 25 sgh-mpm-context: auto inspection-recursion-limit: 3000 # If set to yes, the loading of signatures will be made after the capture # is started. This will limit the downtime in IPS mode. #delayed-detect: yes # the grouping values above control how many groups are created per # direction. Port whitelisting forces that port to get it's own group. # Very common ports will benefit, as well as ports with many expensive # rules. grouping: #tcp-whitelist: 53, 80, 139, 443, 445, 1433, 3306, 3389, 6666, 6667, 8080 #udp-whitelist: 53, 135, 5060 profiling: # Log the rules that made it past the prefilter stage, per packet # default is off. The threshold setting determines how many rules # must have made it past pre-filter for that rule to trigger the # logging. #inspect-logging-threshold: 200 grouping: dump-to-disk: false include-rules: false # very verbose include-mpm-stats: false # Select the multi pattern algorithm you want to run for scan/search the # in the engine. # # The supported algorithms are: # "ac" - Aho-Corasick, default implementation # "ac-bs" - Aho-Corasick, reduced memory implementation # "ac-cuda" - Aho-Corasick, CUDA implementation # "ac-ks" - Aho-Corasick, "Ken Steele" variant # "hs" - Hyperscan, available when built with Hyperscan support # # The default mpm-algo value of "auto" will use "hs" if Hyperscan is # available, "ac" otherwise. # # The mpm you choose also decides the distribution of mpm contexts for # signature groups, specified by the conf - "detect.sgh-mpm-context". # Selecting "ac" as the mpm would require "detect.sgh-mpm-context" # to be set to "single", because of ac's memory requirements, unless the # ruleset is small enough to fit in one's memory, in which case one can # use "full" with "ac". Rest of the mpms can be run in "full" mode. # # There is also a CUDA pattern matcher (only available if Suricata was # compiled with --enable-cuda: b2g_cuda. Make sure to update your # max-pending-packets setting above as well if you use b2g_cuda. mpm-algo: auto # Select the matching algorithm you want to use for single-pattern searches. # # Supported algorithms are "bm" (Boyer-Moore) and "hs" (Hyperscan, only # available if Suricata has been built with Hyperscan support). # # The default of "auto" will use "hs" if available, otherwise "bm". spm-algo: auto # Suricata is multi-threaded. Here the threading can be influenced. threading: set-cpu-affinity: no # Tune cpu affinity of threads. Each family of threads can be bound # on specific CPUs. # # These 2 apply to the all runmodes: # management-cpu-set is used for flow timeout handling, counters # worker-cpu-set is used for 'worker' threads # # Additionally, for autofp these apply: # receive-cpu-set is used for capture threads # verdict-cpu-set is used for IPS verdict threads # cpu-affinity: - management-cpu-set: cpu: [ 0 ] # include only these cpus in affinity settings - receive-cpu-set: cpu: [ 0 ] # include only these cpus in affinity settings - worker-cpu-set: cpu: [ "all" ] mode: "exclusive" # Use explicitely 3 threads and don't compute number by using # detect-thread-ratio variable: # threads: 3 prio: low: [ 0 ] medium: [ "1-2" ] high: [ 3 ] default: "medium" #- verdict-cpu-set: # cpu: [ 0 ] # prio: # default: "high" # # By default Suricata creates one "detect" thread per available CPU/CPU core. # This setting allows controlling this behaviour. A ratio setting of 2 will # create 2 detect threads for each CPU/CPU core. So for a dual core CPU this # will result in 4 detect threads. If values below 1 are used, less threads # are created. So on a dual core CPU a setting of 0.5 results in 1 detect # thread being created. Regardless of the setting at a minimum 1 detect # thread will always be created. # detect-thread-ratio: 1.5 # Profiling settings. Only effective if Suricata has been built with the # the --enable-profiling configure flag. # profiling: # Run profiling for every xth packet. The default is 1, which means we # profile every packet. If set to 1000, one packet is profiled for every # 1000 received. #sample-rate: 1000 # rule profiling rules: # Profiling can be disabled here, but it will still have a # performance impact if compiled in. enabled: yes filename: rule_perf.log append: yes # Sort options: ticks, avgticks, checks, matches, maxticks sort: avgticks # Limit the number of items printed at exit (ignored for json). limit: 100 # output to json json: yes # per keyword profiling keywords: enabled: yes filename: keyword_perf.log append: yes # per rulegroup profiling rulegroups: enabled: yes filename: rule_group_perf.log append: yes # packet profiling packets: # Profiling can be disabled here, but it will still have a # performance impact if compiled in. enabled: yes filename: packet_stats.log append: yes # per packet csv output csv: # Output can be disabled here, but it will still have a # performance impact if compiled in. enabled: no filename: packet_stats.csv # profiling of locking. Only available when Suricata was built with # --enable-profiling-locks. locks: enabled: no filename: lock_stats.log append: yes pcap-log: enabled: no filename: pcaplog_stats.log append: yes ## ## Netfilter integration ## # When running in NFQ inline mode, it is possible to use a simulated # non-terminal NFQUEUE verdict. # This permit to do send all needed packet to suricata via this a rule: # iptables -I FORWARD -m mark ! --mark $MARK/$MASK -j NFQUEUE # And below, you can have your standard filtering ruleset. To activate # this mode, you need to set mode to 'repeat' # If you want packet to be sent to another queue after an ACCEPT decision # set mode to 'route' and set next-queue value. # On linux >= 3.1, you can set batchcount to a value > 1 to improve performance # by processing several packets before sending a verdict (worker runmode only). # On linux >= 3.6, you can set the fail-open option to yes to have the kernel # accept the packet if suricata is not able to keep pace. nfq: # mode: accept # repeat-mark: 1 # repeat-mask: 1 # route-queue: 2 # batchcount: 20 # fail-open: yes #nflog support nflog: # netlink multicast group # (the same as the iptables --nflog-group param) # Group 0 is used by the kernel, so you can't use it - group: 2 # netlink buffer size buffer-size: 18432 # put default value here - group: default # set number of packet to queue inside kernel qthreshold: 1 # set the delay before flushing packet in the queue inside kernel qtimeout: 100 # netlink max buffer size max-size: 20000 ## ## Advanced Capture Options ## # Netmap support # # Netmap operates with NIC directly in driver, so you need FreeBSD wich have # built-in netmap support or compile and install netmap module and appropriate # NIC driver on your Linux system. # To reach maximum throughput disable all receive-, segmentation-, # checksum- offloadings on NIC. # Disabling Tx checksum offloading is *required* for connecting OS endpoint # with NIC endpoint. # You can find more information at https://github.com/luigirizzo/netmap # netmap: # To specify OS endpoint add plus sign at the end (e.g. "eth0+") - interface: eth2 # Number of receive threads. "auto" uses number of RSS queues on interface. #threads: auto # You can use the following variables to activate netmap tap or IPS mode. # If copy-mode is set to ips or tap, the traffic coming to the current # interface will be copied to the copy-iface interface. If 'tap' is set, the # copy is complete. If 'ips' is set, the packet matching a 'drop' action # will not be copied. # To specify the OS as the copy-iface (so the OS can route packets, or forward # to a service running on the same machine) add a plus sign at the end # (e.g. "copy-iface: eth0+"). Don't forget to set up a symmetrical eth0+ -> eth0 # for return packets. Hardware checksumming must be *off* on the interface if # using an OS endpoint (e.g. 'ifconfig eth0 -rxcsum -txcsum -rxcsum6 -txcsum6' for FreeBSD # or 'ethtool -K eth0 tx off rx off' for Linux). #copy-mode: tap #copy-iface: eth3 # Set to yes to disable promiscuous mode # disable-promisc: no # Choose checksum verification mode for the interface. At the moment # of the capture, some packets may be with an invalid checksum due to # offloading to the network card of the checksum computation. # Possible values are: # - yes: checksum validation is forced # - no: checksum validation is disabled # - auto: suricata uses a statistical approach to detect when # checksum off-loading is used. # Warning: 'checksum-validation' must be set to yes to have any validation #checksum-checks: auto # BPF filter to apply to this interface. The pcap filter syntax apply here. #bpf-filter: port 80 or udp #- interface: eth3 #threads: auto #copy-mode: tap #copy-iface: eth2 # Put default values here - interface: default # PF_RING configuration. for use with native PF_RING support # for more info see http://www.ntop.org/products/pf_ring/ pfring: - interface: eth0 # Number of receive threads (>1 will enable experimental flow pinned # runmode) threads: 1 # Default clusterid. PF_RING will load balance packets based on flow. # All threads/processes that will participate need to have the same # clusterid. cluster-id: 99 # Default PF_RING cluster type. PF_RING can load balance per flow. # Possible values are cluster_flow or cluster_round_robin. cluster-type: cluster_flow # bpf filter for this interface #bpf-filter: tcp # Choose checksum verification mode for the interface. At the moment # of the capture, some packets may be with an invalid checksum due to # offloading to the network card of the checksum computation. # Possible values are: # - rxonly: only compute checksum for packets received by network card. # - yes: checksum validation is forced # - no: checksum validation is disabled # - auto: suricata uses a statistical approach to detect when # checksum off-loading is used. (default) # Warning: 'checksum-validation' must be set to yes to have any validation #checksum-checks: auto # Second interface #- interface: eth1 # threads: 3 # cluster-id: 93 # cluster-type: cluster_flow # Put default values here - interface: default #threads: 2 # For FreeBSD ipfw(8) divert(4) support. # Please make sure you have ipfw_load="YES" and ipdivert_load="YES" # in /etc/loader.conf or kldload'ing the appropriate kernel modules. # Additionally, you need to have an ipfw rule for the engine to see # the packets from ipfw. For Example: # # ipfw add 100 divert 8000 ip from any to any # # The 8000 above should be the same number you passed on the command # line, i.e. -d 8000 # ipfw: # Reinject packets at the specified ipfw rule number. This config # option is the ipfw rule number AT WHICH rule processing continues # in the ipfw processing system after the engine has finished # inspecting the packet for acceptance. If no rule number is specified, # accepted packets are reinjected at the divert rule which they entered # and IPFW rule processing continues. No check is done to verify # this will rule makes sense so care must be taken to avoid loops in ipfw. # ## The following example tells the engine to reinject packets # back into the ipfw firewall AT rule number 5500: # # ipfw-reinjection-rule-number: 5500 napatech: # The Host Buffer Allowance for all streams # (-1 = OFF, 1 - 100 = percentage of the host buffer that can be held back) hba: -1 # use_all_streams set to "yes" will query the Napatech service for all configured # streams and listen on all of them. When set to "no" the streams config array # will be used. use-all-streams: yes # The streams to listen on streams: [1, 2, 3] # Tilera mpipe configuration. for use on Tilera TILE-Gx. mpipe: # Load balancing modes: "static", "dynamic", "sticky", or "round-robin". load-balance: dynamic # Number of Packets in each ingress packet queue. Must be 128, 512, 2028 or 65536 iqueue-packets: 2048 # List of interfaces we will listen on. inputs: - interface: xgbe2 - interface: xgbe3 - interface: xgbe4 # Relative weight of memory for packets of each mPipe buffer size. stack: size128: 0 size256: 9 size512: 0 size1024: 0 size1664: 7 size4096: 0 size10386: 0 size16384: 0 ## ## Hardware accelaration ## # Cuda configuration. cuda: # The "mpm" profile. On not specifying any of these parameters, the engine's # internal default values are used, which are same as the ones specified in # in the default conf file. mpm: # The minimum length required to buffer data to the gpu. # Anything below this is MPM'ed on the CPU. # Can be specified in kb, mb, gb. Just a number indicates it's in bytes. # A value of 0 indicates there's no limit. data-buffer-size-min-limit: 0 # The maximum length for data that we would buffer to the gpu. # Anything over this is MPM'ed on the CPU. # Can be specified in kb, mb, gb. Just a number indicates it's in bytes. data-buffer-size-max-limit: 1500 # The ring buffer size used by the CudaBuffer API to buffer data. cudabuffer-buffer-size: 500mb # The max chunk size that can be sent to the gpu in a single go. gpu-transfer-size: 50mb # The timeout limit for batching of packets in microseconds. batching-timeout: 2000 # The device to use for the mpm. Currently we don't support load balancing # on multiple gpus. In case you have multiple devices on your system, you # can specify the device to use, using this conf. By default we hold 0, to # specify the first device cuda sees. To find out device-id associated with # the card(s) on the system run "suricata --list-cuda-cards". device-id: 0 # No of Cuda streams used for asynchronous processing. All values > 0 are valid. # For this option you need a device with Compute Capability > 1.0. cuda-streams: 2 ## ## Include other configs ## # Includes. Files included here will be handled as if they were # inlined in this configuration file. #include: include1.yaml #include: include2.yaml Thanks in advance! Cleberson