/proc/net/ip_conntrack

Display the Natted / Routed Connections on a Linux Iptable Firewall

by on February 26, 2008 · 4 comments

Q. I’ve Linux box acting as software router (natted) for over 100 computer connected via LAN. Regular netstat command is not displaying the list of all natted connections. How do I find out connections managed by netfilter / iptables which comes with the Debian 4.x system?

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Linux Iptables ip_conntrack: table full, dropping packet error and solution

by on January 11, 2008 · 9 comments

My Red hat Enterprise Linux 5 server reporting the following message in /var/log/messages (syslog):

ip_conntrack: table full, dropping packet.

How do I fix this error?

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