Problem with Snort/PostgreSQL

[Johan Sunnerstig <Johan.Sunnerstig () netgiro com>]

Hi.
Im trying to setup snort on a Linux box, with Postgres as the backend DB.
I've setup the DB, with a user named "snort", and then I let that user
create the snort database using the create_postgresql script that comes with
Snort.

However when I run Snort from the command line using the following command:
"snort -c /etc/snort/snort.conf" it dies after trying to do initial DB
configuration.
I've attached the error message I get when running Snort to the bottom of
this mail.

I found a few posts in mailinglist archives relating to a bug in the
PostgreSQL module in Snort 1.9.0, and there was a suggested fix, inserting
the sensor info into the sensor table manually.
I tried this as described in that post, by doing INSERT INTO sensor (sid,
hostname, last_cid) VALUES (1, 'westmalle', 1); , to no avail, I still get
the same error.

The only change I've made to the snort.conf file is uncommenting and
modifying the output to output to Postgres, as follows:
output database: log, postgresql, dbname=snort user=snort port=5432

Anyone got any ideas?

System specs:
Compaq Proliant ML350
RedHat Linux 8.0
Snort 1.9.0 /w postgresql support(installed the 1.9.0 RPM and the Postgres
support RPM on the snort site)
PostgreSQL 7.2.2

Any input would be greatly sppreciated.

Johan

Log stuff below here

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

[root@westmalle root]# snort -c /etc/snort/snort.conf
Initializing Output Plugins!
Log directory = /var/log/snort

Initializing Network Interface eth0

        --== Initializing Snort ==--
Decoding Ethernet on interface eth0
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file /etc/snort/snort.conf

+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
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
No arguments to stream4_reassemble, setting defaults:
     Reassemble client: ACTIVE
     Reassemble server: INACTIVE
     Reassemble ports: 21 23 25 53 80 143 110 111 513
     Reassembly alerts: ACTIVE
     Reassembly method: FAVOR_OLD
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
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
    targets_max: 5000
    target_limit: 5
    port_limit: 20
    timeout: 60
database: compiled support for ( postgresql )
database: configured to use postgresql
database: database name = snort
database:          user = snort
database:   sensor name = 172.22.3.71
database: postgresql_error: ERROR:  ExecAppend: Fail to add null value in
not null attribute last_cid

database: Problem obtaining SENSOR ID (sid) from snort->sensor

 When this plugin starts, a SELECT query is run to find the sensor id for
the
 currently running sensor. If the sensor id is not found, the plugin will
run
 an INSERT query to insert the proper data and generate a new sensor id.
Then a
 SELECT query is run to get the newly allocated sensor id. If that fails
then
 this error message is generated.

 Some possible causes for this error are:
  * the user does not have proper INSERT or SELECT privileges
  * the sensor table does not exist

 If you are _absolutely_ certain that you have the proper privileges set and
 that your database structure is built properly please let me know if you
 continue to get this error. You can contact me at (roman () danyliw com).

Fatal Error, Quitting..


____________________________________________________________________________
_____

How many Microsoft engineers are needed to screw a light bulb ??
None. Microsoft declares darkness the standard. 


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