%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
+## IPFire specific configuration file - an untouched example configuration
+## can be found in suricata-example.yaml.
##
vars:
- # more specifc is better for alert accuracy and performance
address-groups:
# Include HOME_NET declaration from external file.
include: /var/ipfire/suricata/suricata-homenet.yaml
HTTP_PORTS: "80"
SHELLCODE_PORTS: "!80"
ORACLE_PORTS: 1521
- SSH_PORTS: 22
+ SSH_PORTS: "[22,222]"
DNP3_PORTS: 20000
MODBUS_PORTS: 502
FILE_DATA_PORTS: "[$HTTP_PORTS,110,143]"
FTP_PORTS: 21
-
##
-## Step 2: select the rules to enable or disable
+## Ruleset specific options.
##
-
-default-rule-path: /etc/suricata/rules
+default-rule-path: /var/lib/suricata
rule-files:
+ # Include enabled ruleset files from external file.
include: /var/ipfire/suricata/suricata-used-rulefiles.yaml
-classification-file: /etc/suricata/classification.config
-reference-config-file: /etc/suricata/reference.config
-# threshold-file: /etc/suricata/threshold.config
+classification-file: /var/lib/suricata/classification.config
+reference-config-file: /var/lib/suricata/reference.config
+threshold-file: /var/lib/suricata/threshold.config
##
-## Step 3: select outputs to enable
+## Logging options.
##
-
-# 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
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
- # async: true ## if redis replies are read asynchronously
- # mode: list ## possible values: list|lpush (default), rpush, channel|publish
- # ## lpush and rpush are using a Redis list. "list" is an alias for lpush
- # ## publish is using a Redis channel. "channel" is an alias for publish
- # 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-body: yes # enable dumping of http body in Base64
- # http-body-printable: yes # enable dumping of http body in printable format
- metadata: yes # add L7/applayer fields, flowbit and other vars to the alert
-
- # Enable the logging of tagged packets for rules using the
- # "tag" keyword.
- tagged-packets: yes
-
- # 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:
- # control logging of queries and answers
- # default yes, no to disable
- query: yes # enable logging of DNS queries
- answer: yes # enable logging of DNS answers
- # control which RR types are logged
- # all enabled if custom not specified
- #custom: [a, aaaa, cname, mx, ns, ptr, txt]
- - tls:
- extended: yes # enable this for extended logging information
- # output TLS transaction where the session is resumed using a
- # session id
- #session-resumption: no
- # custom allows to control which tls fields that are included
- # in eve-log
- #custom: [subject, issuer, session_resumed, serial, fingerprint, sni, version, not_before, not_after, certificate, chain]
- - files:
- force-magic: no # force logging magic on all logged files
- # force logging of checksums, available hash functions are md5,
- # sha1 and sha256
- #force-hash: [md5]
- #- drop:
- # alerts: yes # log alerts that caused drops
- # flows: all # start or all: 'start' logs only a single drop
- # # per flow direction. All logs each dropped pkt.
- - 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]
-
- #- dnp3
- #- nfs
- - 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
- # Vars log flowbits and other packet and flow vars
- #- vars
-
- # 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
-
- # By default unified2 log files have the file creation time (in
- # unix epoch format) appended to the filename. Set this to yes to
- # disable this behaviour.
- #nostamp: no
-
- # 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
- #extended: yes # Log extended information like fingerprint
- #custom: yes # enabled the custom logging format (defined by customformat)
- #customformat: "%{%D-%H:%M:%S}t.%z %a:%p -> %A:%P %v %n %d %D"
- #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
- # output TLS transaction where the session is resumed using a
- # session id
- #session-resumption: no
-
- # 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.
-
- # Directory to place pcap files. If not provided the default log
- # directory will be used. Required for "sguil" mode.
- #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: yes
filename: stats.log
- append: yes # append to file (yes) or overwrite it (no)
+ append: no # append to file (yes) or overwrite it (no)
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:
- # - file-store stream-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 logging of checksums, available hash functions are md5,
- # sha1 and sha256
- #force-hash: [md5]
- force-filestore: no # force storing of all files
- # override global stream-depth for sessions in which we want to
- # perform file extraction. Set to 0 for unlimited.
- #stream-depth: 0
- #waldo: file.waldo # waldo file to store the file_id across runs
- # uncomment to disable meta file writing
- #write-meta: no
- # uncomment the following variable to define how many files can
- # remain open for filestore by Suricata. Default value is 0 which
- # means files get closed after each write
- #max-open-files: 1000
-
- # 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 logging of checksums, available hash functions are md5,
- # sha1 and sha256
- #force-hash: [md5]
-
- # 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
# This value is overriden by the SC_LOG_LEVEL env var.
default-log-level: notice
- # 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).
#
# disabled you will get the default - console output.
outputs:
- console:
- enabled: yes
+ enabled: no
# type: json
- file:
- enabled: yes
+ enabled: no
level: info
filename: /var/log/suricata/suricata.log
# type: json
- syslog:
- enabled: no
+ enabled: yes
facility: local5
- format: "[%i] <%d> -- "
+ format: ""
# type: json
-
-##
-## Step 4: configure common capture settings
##
-## See "Advanced Capture Options" below for more options, including NETMAP
-## and PF_RING.
+## Netfilter configuration
##
-# 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 tpacket_v3 capture mode, only active if use-mmap is true
- # Don't use it in IPS or TAP mode as it causes severe latency
- #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.
-
+nfq:
+ mode: repeat
+ repeat-mark: 16
+ repeat-mask: 16
+# bypass-mark: 1
+# bypass-mask: 1
+# route-queue: 2
+# batchcount: 20
+ fail-open: yes
##
## Step 5: App Layer Protocol Configuration
tls:
enabled: yes
detection-ports:
- dp: 443
+ dp: "[443,444,465,993,995]"
# Completely stop processing TLS/SSL session after the handshake
# completed. If bypass is enabled this will also trigger flow
content-inspect-min-size: 32768
content-inspect-window: 4096
imap:
- enabled: detection-only
+ enabled: yes
msn:
- enabled: detection-only
+ enabled: yes
smb:
enabled: yes
detection-ports:
# smb2 detection is disabled internally inside the engine.
#smb2:
# enabled: yes
- # Note: NFS parser depends on Rust support: pass --enable-rust
- # to configure.
- nfs:
- enabled: no
dns:
# memcaps. Globally and per flow/state.
- #global-memcap: 16mb
- #state-memcap: 512kb
+ global-memcap: 32mb
+ 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
+ request-flood: 512
tcp:
enabled: yes
detection-ports:
- dp: 53
+ dp: "[53,853]"
udp:
enabled: yes
detection-ports:
- dp: 53
+ dp: "[53,853]"
http:
enabled: yes
# memcap: 64mb
dp: 44818
sp: 44818
- # Note: parser depends on experimental Rust support
- # with --enable-rust-experimental passed to configure
- ntp:
- enabled: no
-
# Limit for the maximum number of asn1 frames to decode (default 256)
asn1-max-frames: 256
##
##############################################################################
-##
-## 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 location of the pid file. The pid file is only used in
-# daemon mode (start Suricata with -D). If not running in daemon mode
-# the --pidfile command line option must be used to create a pid file.
-#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
# 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
+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
# 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
+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
# activated in live capture mode. You can use the filename variable to set
# the file name of the socket.
unix-command:
- enabled: auto
+ enabled: no
#filename: custom.socket
-# Magic file. The extension .mgc is added to the value here.
-#magic-file: /usr/share/file/magic
-#magic-file:
+# Magic file
+magic-file: /usr/share/misc/magic.mgc
legacy:
uricontent: enabled
# - 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
# Defrag settings:
defrag:
- memcap: 32mb
+ memcap: 64mb
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
# in bytes.
flow:
- memcap: 128mb
+ memcap: 256mb
hash-size: 65536
prealloc: 10000
emergency-recovery: 30
- #managers: 1 # default to one flow manager
- #recyclers: 1 # default to one flow recycler thread
+ managers: 1
+ recyclers: 1
# This option controls the use of vlan ids in the flow (and defrag)
# hashing. Normally this should be enabled, but in some (broken)
# # is used in a rule.
#
stream:
- memcap: 64mb
+ memcap: 256mb
+ prealloc-sessions: 4k
checksum-validation: yes # reject wrong csums
inline: auto # auto will use inline mode in IPS mode, yes or no set it statically
reassembly:
toserver-chunk-size: 2560
toclient-chunk-size: 2560
randomize-chunk-size: yes
- #randomize-chunk-range: 10
- #raw: yes
- #segment-prealloc: 2048
- #check-overlap-different-data: true
+ raw: yes
+ segment-prealloc: 2048
+ check-overlap-different-data: true
# Host table:
#
# Teredo decoder is known to not be completely accurate
# it will sometimes detect non-teredo as teredo.
teredo:
- enabled: true
+ enabled: false
##
# 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: medium
+ profile: high
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
+ delayed-detect: yes
prefilter:
# default prefiltering setting. "mpm" only creates MPM/fast_pattern
# thread will always be created.
#
detect-thread-ratio: 1.0
-
-# Luajit has a strange memory requirement, it's 'states' need to be in the
-# first 2G of the process' memory.
-#
-# 'luajit.states' is used to control how many states are preallocated.
-# State use: per detect script: 1 per detect thread. Per output script: 1 per
-# script.
-luajit:
- states: 128
-
-# 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
- # If commented out all the sort options will be used.
- #sort: avgticks
-
- # Limit the number of sids for which stats are shown at exit (per sort).
- limit: 10
-
- # 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.
-# bypass mark and mask can be used to implement NFQ bypass. If bypass mark is
-# set then the NFQ bypass is activated. Suricata will set the bypass mark/mask
-# on packet of a flow that need to be bypassed. The Nefilter ruleset has to
-# directly accept all packets of a flow once a packet has been marked.
-nfq:
-# mode: accept
-# repeat-mark: 1
-# repeat-mask: 1
-# bypass-mark: 1
-# bypass-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
-##
-
-# general settings affecting packet capture
-capture:
- # disable NIC offloading. It's restored when Suricata exists.
- # Enabled by default
- #disable-offloading: false
- #
- # disable checksum validation. Same as setting '-k none' on the
- # commandline
- #checksum-validation: none
-
-# 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)
- # This may be enabled when sharing streams with another application.
- # Otherwise, it should be turned off.
- 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. This can be either:
- # a list of individual streams (e.g. streams: [0,1,2,3])
- # or
- # a range of streams (e.g. streams: ["0-3"])
- streams: ["0-3"]
-
-# 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
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