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Full Discussion: Check for valid hostnames
Top Forums Shell Programming and Scripting Check for valid hostnames Post 302974682 by rahul2662 on Thursday 2nd of June 2016 05:36:43 AM
Old 06-02-2016
Hello Ravinder,

Thanks for your reply. Smilie I am actually developing a script to configure hostname. The script which will ask the user for the hostname. It will check for all the conditions mentioned in my previous mail and validate if the user has entered hostname as per the correct naming convention. If the user has not adhered to the valid hostname convention then script will echo error else script will proceed and make changes specific to the hostname in the RedHat configuration files.

Thanks
Rahul

Last edited by rahul2662; 06-02-2016 at 06:42 AM..
 

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SSH-ARGV0(1)                                                BSD General Commands Manual                                               SSH-ARGV0(1)

NAME
ssh-argv0 -- replaces the old ssh command-name as hostname handling SYNOPSIS
hostname | user@hostname [-l login_name] [command] hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name] [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command] DESCRIPTION
ssh-argv0 replaces the old ssh command-name as hostname handling. If you link to this script with a hostname then executing the link is equivalent to having executed ssh with that hostname as an argument. All other arguments are passed to ssh and will be processed normally. OPTIONS
See ssh(1). FILES
See ssh(1). AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0. Jonathan Amery wrote this ssh-argv0 script and the associated documentation. SEE ALSO
ssh(1) Debian Project September 7, 2001 Debian Project
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