Source: natlog Section: devel Priority: optional Maintainer: Frank B. Brokken Uploaders: George Danchev , tony mancill Build-Depends: debhelper (>= 11.1.2), libpcap-dev, libbobcat-dev (>= 4.08.02), icmake (>= 9.02.04), yodl (>= 4.02.00) Standards-Version: 4.3.0 Vcs-Git: https://salsa.debian.org/debian/natlog.git Vcs-Browser: https://salsa.debian.org/debian/natlog Homepage: https://fbb-git.gitlab.io/natlog/ Package: natlog Architecture: linux-any Depends: ${misc:Depends}, ${shlibs:Depends}, lsb-base (>= 3.2-14) Suggests: conntrack (>= 1.0.0) Description: Source-natting firewall logging utility 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 associating addresses behind the firewall with 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: 192.168.19.72:4467 (via: 129.125.90.132:4467) to 200.49.219.180:443 . Natlog depends on facilities provided by iptables; work is in progress to generate logs using facilities offered by the pcap library.