Fast Logging Project for Snort 1.6.0

Fast Logging Project for Snort is designed to gather alerts with payload from distributed snort sensors.
Fast Logging Project for Snort is designed to gather alerts with payload from distributed snort sensors on a central server and to store them in a database (MySQL and PostgreSQL are supported).

On the sensor, the output is written to a process called sockserv. This process is threaded; one thread receives and buffers the alert packets, and the other thread forwards them to a central server.

The output is decoupled from snort, which can proceed in sniffing instead of waiting for the output plugins. At the central server, a process called servsock gathers all alerts from the remote sensors and feeds them to the database.

A short description of alerts with high priority together with the database ID can be sent via email to a list of recipients.

Here are some key features of "Fast Logging Project for Snort":

Decoupling of the output from snort. Snort can work on new packets instead of processing the output.
Buffering of alerts on the sensor. This is useful if you have a shortage on your network to the central server or the servsock process on the central server is not running (maybe it will be restarted due to a change to a newer version...)
Buffering of alerts on the central server. It is not uncommon that the database (especially MySQL) is hanging during a high input rate or the rate is faster than the database is able to store.
Fast writing to the database via an unix domain socket.
E-Mail alerting on high priority alerts.
Drop feature for the worst case. At least the basic alert informations are still available either via E-Mail or on stdout/syslog.
Since version 1.0.6 the alerts which should be dropped on the central server if servsock exits are written to a swap file. So this data is still availabe.
If alerts have to been dropped because the high water mark was reached then these data are not written to the swap file.

What's New in This Release:

Several checks were added, the alert data from Snort got a tag, and a restart of Snort is now checked.
getpacket now has base 64 support.
The statistics are now generated via the control thread so some signals are no longer necessary.
The exit handler was rewritten and a cache for signatures was added.
This cache can accelerate the insert rate by up to a factor of two and is implemented as a red black tree.
During runtime, the only SELECT statement is for the signature ID, and all other operations are INSERT statements.
The idea is to cache all signatures that caused an alert.

last updated on:
June 6th, 2006, 18:35 GMT
price:
FREE!
homepage:
www.geschke-online.de
license type:
GPL (GNU General Public License) 
developed by:
DG
category:
ROOT \ System \ Networking
Fast Logging Project for Snort
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