How to change hostname for a running server?

Kaz Wolfe · Apr 14, 2019

I have a server running directadmin and having 5 domain name on it. Now I want to change the domain that using to create hostname and dns for this server but I am afraid that websites running under this server will have downtimes. I don't want that, how to change hostname for a running server without downtimes for other websites running in it?

VirtuBox · Apr 14, 2019

Hello @Kaz Wolfe ,
to apply new server hostname, you will have to reboot the server, there is no other way to proceed. But it should not impact your sites for more than a minute.

Kaz Wolfe · Apr 15, 2019

Thanks but I think changing hostname and reboot the server will lead problems for websites running under this server because when I installed directadmin, I use the domain to create DNS and other thing. I think I need to change more things and that will be impossible.

Should I move all websites under this server and start moving main domain from this server to a new server and back to install hosting control panel with a new domain and move websites back?

ikoula · Apr 17, 2019

Hello, you could setup an alias ?

ikoula · Apr 17, 2019

As you were talking about migration on monday i was wondering if you were not encountering a site name issue.
If you wanted to change vhost name you could create an alias instead, in this case the website would be reachable on both domain names.

But If you really want to change server's hostname you have no choice but reboot server, it is something system can only update at booting.

And if you can't stop the server then yes you should process to a soft migration (without interruption) of all the server.
I am no DirectAdmin expert but there should be a migration tool.

AlbaHost · Apr 17, 2019

What OS do you use? And i don't know why do anyone thing that changing a hostname require reboot/restart the server? You can do that without rebooting your server.

panamaserver · May 1, 2019

Hope this helps:

Login to DirectAdmin as the admin user.
Click on the Administrator Settings link.
Change the value in the "Server's Hostname" field to whatever you want the hostname to be.
Click the Save button at the bottom to save your changes.

webalternative · May 4, 2019

open a shell to your DA box and

Code:

cd /usr/local/directadmin/scripts
./hostname.sh <hostname>

Regards,

How to change hostname for a running server?

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