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From: Priya Agarwal <priyaiitmandi () gmail com>
Date: Fri, 31 Oct 2014 13:00:31 +0530

I am following the 'Snort 2.9.6.2 on Ubuntu 12 LTS and 14 LTS' guide to run
snort in NIDS mode on my ubuntu 12.04.

To test Snort, I created a simple rule that will cause Snort to generate an
alert whenever Snort sees an ICMP \Echo request" or \Echo reply" messages.
Wrote the following line into the empty /etc/snort/rules/local.conf:

alert icmp any any -> $HOME_NET any (msg:"ICMP test"; sid:10000001;
rev:001;)

Now I tested the configuration file again but it has loaded the rule from
local.conf. Typed the following command:

sudo snort -T -c /etc/snort/snort.conf

I should have got the following output:

    +-------------------[Rule Port Counts]-----------------------
----------------
    |             tcp     udp    icmp      ip
    |     src       0       0       0       0
    |     dst       0       0       0       0
    |     any       0       0       1       0
    |      nc       0       0       1       0
    |     s+d       0       0       0       0

+----------------------------------------------------------------------------

But instead I got the following output on terminal.Both fields are still 0.

--------------------------------------------------------------------------------

Running in Test mode

            --== Initializing Snort ==--
    Initializing Output Plugins!
    Initializing Preprocessors!
    Initializing Plug-ins!
    Parsing Rules file "/etc/snort/snort.conf"
    PortVar 'HTTP_PORTS' defined :  [ 80:81 311 383 591 593 901 1220 1414
1741 1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988 7000:7001
7144:7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090 8118 8123
8180:8181 8243 8280 8300 8800 8888 8899 9000 9060 9080 9090:9091 9443 9999
11371 34443:34444 41080 50002 55555 ]
    PortVar 'SHELLCODE_PORTS' defined :  [ 0:79 81:65535 ]
    PortVar 'ORACLE_PORTS' defined :  [ 1024:65535 ]
    PortVar 'SSH_PORTS' defined :  [ 22 ]
    PortVar 'FTP_PORTS' defined :  [ 21 2100 3535 ]
    PortVar 'SIP_PORTS' defined :  [ 5060:5061 5600 ]
    PortVar 'FILE_DATA_PORTS' defined :  [ 80:81 110 143 311 383 591 593
901 1220 1414 1741 1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988
7000:7001 7144:7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090
8118 8123 8180:8181 8243 8280 8300 8800 8888 8899 9000 9060 9080 9090:9091
9443 9999 11371 34443:34444 41080 50002 55555 ]
    PortVar 'GTP_PORTS' defined :  [ 2123 2152 3386 ]
    Detection:
       Search-Method = AC-Full-Q
        Split Any/Any group = enabled
        Search-Method-Optimizations = enabled
        Maximum pattern length = 20
    Tagged Packet Limit: 256
    Loading dynamic engine /usr/local/lib/snort_
dynamicengine/libsf_engine.so... done
    Loading all dynamic detection libs from
/usr/local/lib/snort_dynamicrules...
    WARNING: No dynamic libraries found in directory
/usr/local/lib/snort_dynamicrules.
      Finished Loading all dynamic detection libs from
/usr/local/lib/snort_dynamicrules
    Loading all dynamic preprocessor libs from
/usr/local/lib/snort_dynamicpreprocessor/...
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_modbus_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_dce2_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_ssh_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_dns_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_gtp_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_ssl_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_smtp_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_dnp3_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_sdf_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_reputation_preproc.so...
done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_pop_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_imap_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_sip_preproc.so... done
      Loading dynamic preprocessor library
/usr/local/lib/snort_dynamicpreprocessor//libsf_ftptelnet_preproc.so... done
      Finished Loading all dynamic preprocessor libs from
/usr/local/lib/snort_dynamicpreprocessor/
    Log directory = /var/log/snort
    WARNING: ip4 normalizations disabled because not inline.
    WARNING: tcp normalizations disabled because not inline.
    WARNING: icmp4 normalizations disabled because not inline.
    WARNING: ip6 normalizations disabled because not inline.
    WARNING: icmp6 normalizations disabled because not inline.
    Frag3 global config:
        Max frags: 65536
        Fragment memory cap: 4194304 bytes
    Frag3 engine config:
        Bound Address: default
        Target-based policy: WINDOWS
        Fragment timeout: 180 seconds
        Fragment min_ttl:   1
        Fragment Anomalies: Alert
        Overlap Limit:     10
        Min fragment Length:     100
          Max Expected Streams: 768
    Stream global config:
        Track TCP sessions: ACTIVE
        Max TCP sessions: 262144
        TCP cache pruning timeout: 30 seconds
        TCP cache nominal timeout: 3600 seconds
        Memcap (for reassembly packet storage): 8388608
        Track UDP sessions: ACTIVE
        Max UDP sessions: 131072
        UDP cache pruning timeout: 30 seconds
        UDP cache nominal timeout: 180 seconds
        Track ICMP sessions: INACTIVE
        Track IP sessions: INACTIVE
------------------------------------------------------------------------------
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