required command to know the port no. Post: 302188229

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netstat-nat

netstat-nat(1)						      General Commands Manual						    netstat-nat(1)

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

								     July 2002							    netstat-nat(1)