--- Begin Message ---
Package: suricata
Version: 3.2.1-1
Severity: wishlist
Dear Maintainer,
first, please apologize, as I am new to suricata. Before I used snort, but I
believe, suricata is now more modern.
As this is a wishlist, just allow me shortly to describe, what I am missing:
1. On my netbook I regularly change the interface, which is connected to the
internet. So maybe some day I need eth0, the next day wlan0 and also ppp0 (via
UMTS) is often in use.
I want suricata check all the interfaces. All shall have the same ruleset. How
can I tell suricata to do so, if possible at all? One solution may be, to
create and start suricata with a seperate configuration for eth0, one for wlan0
and one for ppp0. But that is annoying. In snort it was possible, just to tell
which interfaces shall be included, it was very easy. Hope there is a same easy
way in suricata.
2. I could not find, how to get alerted, when suricata detects bad traffic. IMO
suricata.log might show it, but I want to be alerted as fast as possible. My
idea and suggestion for this problem: Please add a configuration file for
"logcheck", that recognizes an active attack. I believe, also suricata is using
keywords in its log, which shows an active attack. Good idea?
3. I found no GUI for managing and configuring suricata. A little Google search
brought me to snorby, which is for snort, but shall also be usable for
suricata. IMO the GUI does not need a web interface, a simple ncurses interface
will be fine enough. Do you know about such one? This point is not so
important, but would be nice to have.
I hope, you are not too angered about my wishes, it is just these, what I
personally am missing most and I imagine, other people might miss it, too.
So thank you for reading this and for the great work!
Best regards
Hans
-- System Information:
Debian Release: 9.0
APT prefers testing
APT policy: (500, 'testing'), (500, 'stable')
Architecture: i386
(i686)
Kernel: Linux 4.9.0-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages suricata depends on:
ii dpkg 1.18.23
ii libc6 2.24-10
ii libcap-ng0 0.7.7-3+b1
ii libgcrypt20 1.7.6-1
ii libgeoip1 1.6.9-4
ii libgnutls30 3.5.8-5
ii libhiredis0.13 0.13.3-2
ii libhtp-0.5.23-1 3.2.1-1
ii libhyperscan4 4.4.1-1
ii libjansson4 2.9-1
ii libluajit-5.1-2 2.0.4+dfsg-1+b1
ii libmagic1 1:5.29-3
ii libnet1 1.1.6+dfsg-3
ii libnetfilter-log1 1.0.1-1.1
ii libnetfilter-queue1 1.0.2-2
ii libnfnetlink0 1.0.1-3
ii libnspr4 2:4.12-6
ii libnss3 2:3.26.2-1
ii libpcap0.8 1.8.1-3
ii libpcre3 2:8.39-3
ii libprelude2 1.0.0-11.9
ii libyaml-0-2 0.1.7-2
ii lsb-base 9.20161125
ii python 2.7.13-2
pn python:any <none>
Versions of packages suricata recommends:
ii snort-rules-default 2.9.7.0-5
ii suricata-oinkmaster 3.2.1-1
Versions of packages suricata suggests:
ii libtcmalloc-minimal4 2.5-2.2
-- Configuration Files:
/etc/default/suricata changed:
RUN=no
SURCONF=/etc/suricata/suricata.yaml
LISTENMODE=nfqueue
IFACE=wlan0
NFQUEUE=0
TCMALLOC="YES"
PIDFILE=/var/run/suricata.pid
/etc/suricata/suricata.yaml changed:
%YAML 1.1
---
vars:
# more specifc is better for alert accuracy and performance
address-groups:
HOME_NET: "[192.168.0.0/16,10.0.0.0/8,172.16.0.0/12]"
#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
default-rule-path: /etc/suricata/rules
rule-files:
- botcc.rules
# - botcc.portgrouped.rules
- ciarmy.rules
- compromised.rules
- drop.rules
- dshield.rules
- emerging-attack_response.rules
- emerging-chat.rules
- emerging-current_events.rules
- emerging-dns.rules
- emerging-dos.rules
- emerging-exploit.rules
- emerging-ftp.rules
- emerging-imap.rules
- emerging-malware.rules
- emerging-misc.rules
- emerging-mobile_malware.rules
- emerging-netbios.rules
- emerging-p2p.rules
- emerging-policy.rules
- emerging-pop3.rules
- emerging-rpc.rules
- emerging-scan.rules
- emerging-smtp.rules
- emerging-snmp.rules
- emerging-sql.rules
- emerging-telnet.rules
- emerging-tftp.rules
- emerging-trojan.rules
- emerging-user_agents.rules
- emerging-voip.rules
- emerging-web_client.rules
- emerging-web_server.rules
- emerging-worm.rules
- tor.rules
- http-events.rules # available in suricata sources under rules dir
- smtp-events.rules # available in suricata sources under rules dir
- dns-events.rules # available in suricata sources under rules dir
- tls-events.rules # available in suricata sources under rules dir
classification-file: /etc/suricata/classification.config
reference-config-file: /etc/suricata/reference.config
default-log-dir: /var/log/suricata/
stats:
enabled: yes
# The interval field (in seconds) controls at what interval
# the loggers are invoked.
interval: 8
outputs:
# a line based alerts log similar to Snort's fast.log
- fast:
enabled: yes
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
dnp3: yes # enable dumping of DNP3 fields
# 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
- 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]
- 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
#- dnp3
# 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.
# 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
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
# 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:
# 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: 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).
#
# 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: yes
# 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
af-packet:
- interface: wlan0
# 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
pcap:
- interface: wlan0
# 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
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
app-layer:
protocols:
tls:
enabled: yes
detection-ports:
dp: 443
# Completely stop processing TLS/SSL session after the handshake
# completed. If bypass is enabled this will also trigger flow
# bypass. If disabled (the default), TLS/SSL session is still
# tracked for Heartbleed and other anomalies.
#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, 445
# 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: 100kb
response-body-limit: 100kb
# 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
# 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)
# Stream reassembly size for modbus. By default track it completely.
stream-depth: 0
# DNP3
dnp3:
enabled: no
detection-ports:
dp: 20000
# SCADA EtherNet/IP and CIP protocol support
enip:
enabled: no
detection-ports:
dp: 44818
sp: 44818
asn1-max-frames: 256
coredump:
max-dump: unlimited
host-mode: auto
unix-command:
enabled: yes
filename: /var/run/suricata-command.socket
legacy:
uricontent: enabled
engine-analysis:
# enables printing reports for fast-pattern for every rule.
rules-fast-pattern: yes
# enables printing reports for each rule
rules: yes
pcre:
match-limit: 3500
match-limit-recursion: 1500
host-os-policy:
# Make the default policy windows.
windows: [0.0.0.0/0]
bsd: []
bsd-right: []
old-linux: []
linux: []
old-solaris: []
solaris: []
hpux10: []
hpux11: []
irix: []
macos: []
vista: []
windows2k3: []
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
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
vlan:
use-for-tracking: true
flow-timeouts:
default:
new: 30
established: 300
closed: 0
bypassed: 100
emergency-new: 10
emergency-established: 100
emergency-closed: 0
emergency-bypassed: 50
tcp:
new: 60
established: 600
closed: 60
bypassed: 100
emergency-new: 5
emergency-established: 100
emergency-closed: 10
emergency-bypassed: 50
udp:
new: 30
established: 300
bypassed: 100
emergency-new: 10
emergency-established: 100
emergency-bypassed: 50
icmp:
new: 30
established: 300
bypassed: 100
emergency-new: 10
emergency-established: 100
emergency-bypassed: 50
stream:
memcap: 64mb
checksum-validation: yes # reject wrong csums
inline: auto # auto will use inline mode in IPS mode, yes or
no set it statically
reassembly:
memcap: 256mb
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
# 'from_mtu' means that the size is mtu - 40,
# or 1460 if mtu couldn't be determined.
# - size: from_mtu
# prealloc: 1024
# - size: 65535
# prealloc: 128
#zero-copy-size: 128
host:
hash-size: 4096
prealloc: 1000
memcap: 32mb
detect:
profile: medium
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
prefilter:
# default prefiltering setting. "mpm" only creates MPM/fast_pattern
# engines. "auto" also sets up prefilter engines for other keywords.
# Use --list-keywords=all to see which keywords support prefiltering.
default: mpm
# 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
mpm-algo: auto
spm-algo: auto
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: 1.0
luajit:
states: 128
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
nfq:
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
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:
# 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
pfring:
- interface: wlan0
# 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
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]
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
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
-- no debconf information
--- End Message ---
