netstat-nat(1)
Show the natted connections on a linux iptable firewall
Description
netstat-nat
NAME
netstat-nat - Show the natted connections on a linux iptable firewall
SYNOPSIS
netstat-nat [options]
DESCRIPTION
netstat-nat Displays NAT connections managed by netfilter/iptables which comes with the > 2.4.x linux kernels.
The program reads its information from ’/proc/net/ip_conntrack’ or ’/proc/net/nf_conntrack’, which is the temporary conntrack-storage of netfilter.
OPTIONS
|
-h |
displays help |
|||
|
-n |
don’t resolve IPs/portnumbers to host/portnames |
-p <protocol>
display NAT connections with protocol selection (see /etc/protocols)
-s <source host>
display connections by source IP/hostname
-d <destination host>
display connections by destination IP/hostname
|
-S |
display SNAT connections | ||
|
-D |
display DNAT connections | ||
|
-L |
display only connections to NAT box self (doesn’t show SNAT & DNAT) | ||
|
-R |
display only connections routed through the NAT box (doesn’t show SNAT & DNAT) | ||
|
-x |
extended view of hostnames |
-r <src|dst|src-port|dst-port|state>
sort connections
|
-o |
no output header | ||
|
-N |
display NAT box connection information (only valid with SNAT & DNAT) | ||
|
-v |
prints version |
FILES
/proc/net/ip_conntrack or /proc/net/nf_conntrack
SEE ALSO
http://www.tweegy.nl/projects/netstat-nat/
http://www.netfilter.org/
AUTHOR
netstat-nat has
been written by D.Wijsman danny@tweegy.nl
The manual page has been written by marceln@xs4all.nl