File: network-test.1

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.\" network-test.1 - check the network and test if everything is OK
.\" Copyright (C) 2006 Javier Fernandez-Sanguino
.\" Everybody is allowed to distribute this manual page,
.\" to modify it, and to distribute modifed versions of it.
.TH network-test 1 "July 24 2006" "debian\-goodies" "debian\-goodies"
.SH NAME
network-test \- check the network and test if everything is fine
.SH SYNOPSIS
.B network-test
.SH DESCRIPTION
The
.B network-test
program will test your system's network configuration using basic
tests and providing both information (\fBINFO\fP), warnings (\fBWARN\fP)
and possible errors (\fBERR\fP) by checking:
.RS
* Interface status, number of transmitted packets and error rates.

* Availability of configured routers, including the default router.

* Proper host resolution, testing DNS resolution against a known host.

* Proper network connectivity, testing reachability of remote hosts using
ICMP and simulating a web connections to a remote web server (the web server
used for the tests can be configured through the environment, see below)
.RE

.P 
The script does not need special privileges to run as it does not
do any system change. 

.SH ENVIRONMENT

The program will, by default, check 
.B www.debian.org
and its associated web server. If you want to use a different check host you
can setup the environment as follows:
.br
.TP 
.B CHECK_HOST
The name of a host to use when testing DNS resolution.
.TP 
.B CHECK_IP_ADRESS
The IP address of the host defined in 
.B CHECK_HOST
.TP 
.B CHECK_WEB_HOST
The web server to use for testing purposes when testing network connectivity.
.TP 
.B CHECK_WEB_PORT
The web server port of server
.B CHECK_WEB_HOST
that will be used for testing.

.SH EXIT STATUS

The program will exit with error (1) if any of the network checks fail.

.SH BUGS
This program does not have \fIsuper cow powers\fP so it is unable to fix the
errors by itself. It is also unable to detect if the network is failing due to
a local firewall policy been in place so make sure you check your system logs
with
.B dmesg(1)

.\".SH  SEE ALSO

.SH AUTHOR

.B network-test
was written by Javier Fernandez-Sanguino for the Debian
GNU/Linux distribution.

.SH COPYRIGHT AND LICENCE

Copyright (C) 2005,2006 Javier Fernandez-Sanguino <jfs@debian.org>.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

On Debian systems, a copy of the GNU General Public License may be
found in /usr/share/common-licenses/GPL.