https://msc.siamtools.com/wiki/index.php?action=history&feed=atom&title=Change_Hostname_Debian 2026-05-02T13:13:10Z Revision history for this page on the wiki MediaWiki 1.28.0 https://msc.siamtools.com/wiki/index.php?title=Change_Hostname_Debian&diff=70&oldid=prev 2008-08-09T06:32:14Z

<p>New page: &#039;&#039;&#039;Change the hostname on a running Linux system&#039;&#039;&#039; On any Linux system you can change its hostname with the command ‘&#039;&#039;hostname&#039;&#039;‘. &lt;pre&gt;# hostname&lt;/pre&gt; without any parameter it wil...</p> <p><b>New page</b></p><div>'''Change the hostname on a running Linux system'''<br /> <br /> On any Linux system you can change its hostname with the command ‘''hostname''‘.<br /> &lt;pre&gt;# hostname&lt;/pre&gt;<br /> without any parameter it will output the current hostname of the system.<br /> &lt;pre&gt;# hostname –fqd&lt;/pre&gt;<br /> it will output the fully qualified domain name (or FQDN) of the system.<br /> &lt;pre&gt;# hostname NEW_NAME&lt;/pre&gt;<br /> will set the hostname of the system to NEW_NAME. This is active right away and will remain like that until the system will be rebooted (because at system boot it will set this from some particular file configurations - see bellow how to set this permanently). You will most probably need to exit the current shell in order to see the change in your shell prompt.<br /> <br /> Permanent hostname change on Debian based Linux systems<br /> <br /> Debian based systems use the file /etc/hostname to read the hostname of the system at boot time and set it up using the init script /etc/init.d/hostname.sh<br /> &lt;pre&gt;# cat /etc/hostname&lt;/pre&gt;<br /> debianadmin<br /> <br /> So on a Debian based system we can edit the file /etc/hostname and change the name of the system and then run<br /> <br /> /etc/init.d/hostname.sh startto make the change active. The hostname saved in this file (/etc/hostname) will be preserved on system reboot (and will be set using the same script we used hostname.sh).<br /> <br /> If you want more details check hostname man page<br /> <br /> Use sysctl to change the hostname<br /> <br /> use sysctl to change the variable kernel.hostname:<br /> <br /> Use:<br /> &lt;pre&gt;# sysctl kernel.hostname&lt;/pre&gt;<br /> to read the current hostname, and<br /> &lt;pre&gt;# sysctl kernel.hostname=NEW_HOSTNAME&lt;/pre&gt;<br /> to change it.<br /> <br /> If you want more details check sysctl man page<br /> <br /> You can use the same process for all debian based distributions and other linux machines<br /> <br /> also.&lt;br&gt;</div>

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