Appendix snortコマンド

環境

• RockyLinux 9

コマンドヘルプ

[root@lpic303-rocky34 ~]#
[root@lpic303-rocky34 ~]# snort -?

   ,,_     -*> Snort! <*-
  o"  )~   Version 2.9.20 GRE (Build 82)
   ''''    By Martin Roesch & The Snort Team: http://www.snort.org/contact#team
           Copyright (C) 2014-2022 Cisco and/or its affiliates. All rights reserved.
           Copyright (C) 1998-2013 Sourcefire, Inc., et al.
           Using libpcap version 1.10.0 (with TPACKET_V3)
           Using PCRE version: 8.44 2020-02-12
           Using ZLIB version: 1.2.11

USAGE: snort [-options] <filter options>
Options:
        -A         Set alert mode: fast, full, console, test or none  (alert file alerts only)
                   "unsock" enables UNIX socket logging (experimental).
        -b         Log packets in tcpdump format (much faster!)
        -B <mask>  Obfuscated IP addresses in alerts and packet dumps using CIDR mask
        -c <rules> Use Rules File <rules>
        -C         Print out payloads with character data only (no hex)
        -d         Dump the Application Layer
        -D         Run Snort in background (daemon) mode
        -e         Display the second layer header info
        -f         Turn off fflush() calls after binary log writes
        -F <bpf>   Read BPF filters from file <bpf>
        -g <gname> Run snort gid as <gname> group (or gid) after initialization
        -G <0xid>  Log Identifier (to uniquely id events for multiple snorts)
        -h <hn>    Set home network = <hn>
                   (for use with -l or -B, does NOT change $HOME_NET in IDS mode)
        -H         Make hash tables deterministic.
        -i <if>    Listen on interface <if>
        -I         Add Interface name to alert output
        -k <mode>  Checksum mode (all,noip,notcp,noudp,noicmp,none)
        -K <mode>  Logging mode (pcap[default],ascii,none)
        -l <ld>    Log to directory <ld>
        -L <file>  Log to this tcpdump file
        -M         Log messages to syslog (not alerts)
        -m <umask> Set umask = <umask>
        -n <cnt>   Exit after receiving <cnt> packets
        -N         Turn off logging (alerts still work)
        -O         Obfuscate the logged IP addresses
        -p         Disable promiscuous mode sniffing
        -P <snap>  Set explicit snaplen of packet (default: 1514)
        -q         Quiet. Don't show banner and status report
        -Q         Enable inline mode operation.
        -r <tf>    Read and process tcpdump file <tf>
        -R <id>    Include 'id' in snort_intf<id>.pid file name
        -s         Log alert messages to syslog
        -S <n=v>   Set rules file variable n equal to value v
        -t <dir>   Chroots process to <dir> after initialization
        -T         Test and report on the current Snort configuration
        -u <uname> Run snort uid as <uname> user (or uid) after initialization
        -U         Use UTC for timestamps
        -v         Be verbose
        -V         Show version number
        -X         Dump the raw packet data starting at the link layer
        -x         Exit if Snort configuration problems occur
        -y         Include year in timestamp in the alert and log files
        -z <file>  Set the preproc_memstats file path and name
        -Z <file>  Set the performonitor preprocessor file path and name
        -?         Show this information
<Filter Options> are standard BPF options, as seen in TCPDump
Longname options and their corresponding single char version
   --logid <0xid>                  Same as -G
   --perfmon-file <file>           Same as -Z
   --pid-path <dir>                Specify the directory for the Snort PID file
   --snaplen <snap>                Same as -P
   --help                          Same as -?
   --version                       Same as -V
   --alert-before-pass             Process alert, drop, sdrop, or reject before pass, default is pass before alert, drop,...
   --treat-drop-as-alert           Converts drop, sdrop, and reject rules into alert rules during startup
   --treat-drop-as-ignore          Use drop, sdrop, and reject rules to ignore session traffic when not inline.
   --process-all-events            Process all queued events (drop, alert,...), default stops after 1st action group
   --enable-inline-test            Enable Inline-Test Mode Operation
   --dynamic-engine-lib <file>     Load a dynamic detection engine
   --dynamic-engine-lib-dir <path> Load all dynamic engines from directory
   --dynamic-detection-lib <file>  Load a dynamic rules library
   --dynamic-detection-lib-dir <path> Load all dynamic rules libraries from directory
   --dump-dynamic-rules <path>     Creates stub rule files of all loaded rules libraries
   --dynamic-preprocessor-lib <file>  Load a dynamic preprocessor library
   --dynamic-preprocessor-lib-dir <path> Load all dynamic preprocessor libraries from directory
   --dynamic-output-lib <file>  Load a dynamic output library
   --dynamic-output-lib-dir <path> Load all dynamic output libraries from directory
   --create-pidfile                Create PID file, even when not in Daemon mode
   --nolock-pidfile                Do not try to lock Snort PID file
   --no-interface-pidfile          Do not include the interface name in Snort PID file
   --disable-attribute-reload-thread Do not create a thread to reload the attribute table
   --pcap-single <tf>              Same as -r.
   --pcap-file <file>              file that contains a list of pcaps to read - read mode is implied.
   --pcap-list "<list>"            a space separated list of pcaps to read - read mode is implied.
   --pcap-dir <dir>                a directory to recurse to look for pcaps - read mode is implied.
   --pcap-filter <filter>          filter to apply when getting pcaps from file or directory.
   --pcap-no-filter                reset to use no filter when getting pcaps from file or directory.
   --pcap-loop <count>             this option will read the pcaps specified on command line continuously.
                                   for <count> times.  A value of 0 will read until Snort is terminated.
   --pcap-reset                    if reading multiple pcaps, reset snort to post-configuration state before reading next pcap.
   --pcap-reload                   if reading multiple pcaps, reload snort config between pcaps.
   --pcap-show                     print a line saying what pcap is currently being read.
   --exit-check <count>            Signal termination after <count> callbacks from DAQ_Acquire(), showing the time it
                                   takes from signaling until DAQ_Stop() is called.
   --conf-error-out                Same as -x
   --enable-mpls-multicast         Allow multicast MPLS
   --enable-mpls-overlapping-ip    Handle overlapping IPs within MPLS clouds
   --max-mpls-labelchain-len       Specify the max MPLS label chain
   --mpls-payload-type             Specify the protocol (ipv4, ipv6, ethernet) that is encapsulated by MPLS
   --require-rule-sid              Require that all snort rules have SID specified.
   --daq <type>                    Select packet acquisition module (default is pcap).
   --daq-mode <mode>               Select the DAQ operating mode.
   --daq-var <name=value>          Specify extra DAQ configuration variable.
   --daq-dir <dir>                 Tell snort where to find desired DAQ.
   --daq-list[=<dir>]              List packet acquisition modules available in dir.  Default is static modules only.
   --dirty-pig                     Don't flush packets and release memory on shutdown.
   --cs-dir <dir>                  Directory to use for control socket.
   --ha-peer                       Activate live high-availability state sharing with peer.
   --ha-out <file>                 Write high-availability events to this file.
   --ha-in <file>                  Read high-availability events from this file on startup (warm-start).
   --suppress-config-log           Suppress configuration information output.
[root@lpic303-rocky34 ~]#