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Full Discussion: Netstat command
Top Forums UNIX for Advanced & Expert Users Netstat command Post 302205278 by jim mcnamara on Saturday 14th of June 2008 06:48:48 AM
Old 06-14-2008
Making an internet connection from inside a local network to the outside world via a NAT creates a masqueraded connection. All of the packets outside look like the router IP, all of the packets inside the local network have different IP's. The NAT translates the IP addresses back and forth as packets come and go.

FIB is a table of forwarding addresses. RFC 3222 (rfc3222) - Terminology for Forwarding Information Base (FIB) bas
 

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ident2(8)						      System Manager's Manual							 ident2(8)

NAME
ident2 - An advanced ident daemon SYNOPSIS
ident2 [options] DESCRIPTION
ident2 is an advanced ident daemon, which can run as an inetd service or on it's own. It has various features such as user defined and ran- dom replies, extensive logging, and full administrative control. OPTIONS
The program follows the usual GNU syntax command-line unless it is unsupported on your system. GNU options begin with two dashes(`-') and have much more descriptive names. -h, --help Show summary of options. -u, --usage Shows example command lines -v, --version Show version information -l, --license Show licensing information -a, --force-inetd Force inetd mode, if autodetection isn't working. -d, --force-daemon Force standalone daemon, if autodetection isn't working. -i, --use-user-ident Allow user defined ident replies. Just do a echo 'ident ar' > ~/.ident to change your ident reply. -y, --user-reply-file File ident2 should look for in user's homedir for replies. Default is ~/.ident -n, --allow-noident-file Disable replies for user if user has a ~/.noident file. This behavior is disabled by default. -o, --client-timeout Clients timeout after this many seconds -s, --dont-change-uid Ident2 will normally try to change it's uid to something less privileged if it finds it's uid to be 0. This option disables this behavior altogether. -r, --always-random Always send a random reply, regardless of what kind of request the client made. This is useful for abusing the ident protocol as well as assisting outgoing IP masqueraded connections. -m, --daemon-maxclients Daemon-only: Accept no more than this many connections at a time. -p, --daemon-port Daemon-only: Bind this port, instead of 'auth' aka 113 SEE ALSO inetd(8), inetd.conf(5) AUTHOR
This manual page was written by Alexander Reelsen <ar@rhwd.net>, for the Debian GNU/Linux system (but may be used by others). GNU ident2(8)
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