Creates easy to interpret logs of source-natted connections

Add a Review
8 Downloads (This Week)
Last Update:
Download natlog_1.02.00.orig.tar.gz
Browse All Files


Firewalls like iptables usually offer POSTROUTING source network address translation facilities changing the source address of a host behind the firewall to the address of the host before the firewall.

The standard log facilities provided by iptables do not easily allow us to associate addresses behind the firewall to their source-natted equivalents before the firewall. Natlog was
designed to fill in that particular niche.

When running natlog, messages are sent to the syslog daemon and/or to the standard output stream showing the essential characteristics of the connection using source natting. Here is an example:

from Fri 8 22:30:10:55588 until Fri 8 22:40:43:807100: (via: to

Natlog depends on facilities provided by iptables; work is in progress to generate logs using facilities offered by the pcap library

natlog Web Site


Write a Review

User Reviews

Be the first to post a review of natlog!

Additional Project Details

Intended Audience

System Administrators


Screenshots can attract more users to your project.
Features can attract more users to your project.

Icons must be PNG, GIF, or JPEG and less than 1 MiB in size. They will be displayed as 48x48 images.