Re: [Snort-users] Snort problems

From: Adam Kennedy <akennedy(at)niesc.k12.in.us>
Date: Fri Mar 07 2003 - 14:22:34 EST

Erek Adams wrote:
> On Thu, 6 Mar 2003, Adam Kennedy wrote:

>>I've got so far one server that snort is installed on, but after running
>>snort (snort -D -d -c /etc/snort/snort.conf -i eth0 -l /var/log/snort)
>>it spits the following into the syslog, then dies silently:
>>Mar  6 14:12:56 changeme kernel: device eth0 left promiscuous mode

>
>
> What version of snort?

Snort 1.9.1

I've removed the -D from snort, and ran it. Here's the output (not sure if list strips attachments, but just in case):

## Begin Log
Log directory = /var/log/snort

Initializing Network Interface eth0

         --== Initializing Snort ==--
Initializing Output Plugins!
Decoding Ethernet on interface eth0
Parsing Rules file /etc/snort/snort.conf

+++++++++++++++++++++++++++++++++++++++++++++++++++

Initializing rule chains...
Initializing Preprocessors!
Initializing Plug-ins!
No arguments to frag2 directive, setting defaults to:

     Fragment timeout: 60 seconds
     Fragment memory cap: 4194304 bytes
     Fragment min_ttl:   0
     Fragment ttl_limit: 5
     Fragment Problems: 0
Stream4 config:
     Stateful inspection: ACTIVE
     Session statistics: INACTIVE
     Session timeout: 30 seconds
     Session memory cap: 8388608 bytes
     State alerts: INACTIVE
     Evasion alerts: INACTIVE
     Scan alerts: ACTIVE
     Log Flushed Streams: INACTIVE
     MinTTL: 1
     TTL Limit: 5
     Async Link: 0
     State Protection: 0
     Self preservation threshold: 0
     Self preservation period: 0
     Suspend threshold: 0
     Suspend period: 0
Stream4_reassemble config:
     Server reassembly: INACTIVE
     Client reassembly: ACTIVE
     Reassembler alerts: ACTIVE
     Ports: 21 23 25 53 80 110 111 143 513 1433
     Emergency Ports: 21 23 25 53 80 110 111 143 513 1433
http_decode arguments:
     Unicode decoding
     IIS alternate Unicode decoding
     IIS double encoding vuln
     Flip backslash to slash
     Include additional whitespace separators
     Ports to decode http on: 80
rpc_decode arguments:
     Ports to decode RPC on: 111 32771
     alert_fragments: INACTIVE
     alert_large_fragments: ACTIVE
     alert_incomplete: ACTIVE
     alert_multiple_requests: ACTIVE
telnet_decode arguments:
     Ports to decode telnet on: 21 23 25 119

Conversation Config:

    KeepStats: 0

    Conv Count: 32000
    Timeout   : 60
    Alert Odd?: 0

    Allowed IP Protocols: All

Portscan2 config:

     log: /var/log/snort/scan.log
     scanners_max: 3200
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     targets_max: 5000
     target_limit: 5
     port_limit: 20
     timeout: 60

Opening /var/log/snort/snort.log.1047064436 ERROR: cannot open raw socket for libnet, exiting... Fatal Error, Quitting..
## End Log

Any ideas? I have a feeling it's something with flexresp and libnet. I'm using Libnet 1.0.2a

-- 
------------------------------------------------
| Northern Indiana Educational Services Center |
------------------------------------------------
| Adam Kennedy - akennedy@niesc.k12.in.us      |
| Certified Linux Administrator - Master Level |
| Phone: (574) 254-0111 x113                   |
| Fax: (574) 254-0148                          |
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Received on Fri Mar 7 14:27:39 2003