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Top Forums Shell Programming and Scripting Alternative network messaging? Post 302718477 by 123_abc on Friday 19th of October 2012 04:14:26 PM
Old 10-19-2012
Thanks. Well, I thought of a primitive SMS-like messaging function that allows to send messages either to one user or to a group of users. I thought I could use nc for that task, but I don't know if it's a good option.

What would would you recommend to simulate a network? Is it better to use multiple IP aliases on one physical host or to use multiple VMs?

Last edited by 123_abc; 10-20-2012 at 09:48 AM..
 

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ALI(1)								     [nmh-1.5]								    ALI(1)

NAME
ali - list mail aliases SYNOPSIS
ali [-alias aliasfile] [-list | -nolist] [-normalize | -nonormalize] [-user | -nouser] [-version] [-help] [aliases ...] DESCRIPTION
Ali searches the named mail alias files for each of the given aliases. It creates a list of addresses for those aliases, and writes that list on standard output. If no arguments are given, ali outputs all alias entries. By default, when an aliases expands to multiple addresses, the addresses are separated by commas and printed on as few lines as possible. If the -list option is specified, then when an address expands to multiple addresses, each address will appear on a separate line. The switch -user directs ali to perform its processing in an inverted fashion: instead of listing the addresses that each given alias expands to, ali will list the aliases that expand to each given address. If the -normalize switch is given, ali will try to track down the official hostname of the address. The files specified by the profile entry "Aliasfile" and any additional alias files given by the -alias aliasfile switch will be read. Each alias is processed as described in mh-alias(5). FILES
$HOME/.mh_profile The user profile /etc/passwd List of users /etc/group List of groups PROFILE COMPONENTS
Path: To determine the user's nmh directory Aliasfile: For a default alias file SEE ALSO
mh-alias(5) DEFAULTS
`aliasfiles' defaults to /etc/nmh/MailAliases `-nolist' `-nonormalize' `-nouser' CONTEXT
None BUGS
The -user option with -nonormalize is not entirely accurate, as it does not replace local nicknames for hosts with their official site names. MH.6.8 11 June 2012 ALI(1)
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