Hi, I am trying to install a second ISPConfig server that will allow me to switch clients from one server to another when the first one is overloaded. But I am not able to install it successfully. All the examples I have seen are to configure it in cluster mode or with exclusive database, web or mail servers (db.example.tld, web. example.tld, mx1.example.tld...). Is there any guide for what I want to do? can you give me some tips on how to achieve what I want to do? Thank you very much
The guide is the multiserver setup guide in ISPConfig Documentation. Ignore the parts about multiserver members you do not plan to set up. You need to make db accounts for that second web server to ISPConfig database on the existing master server. Then install ISPConfig in expert mode so it asks which master server to join.
You can find the most recent multiserver guide here: https://www.howtoforge.com/tutorial/ispconfig-multiserver-setup-debian-ubuntu/ Which means you want to install it in cluster mode (mirror mode), as that's what ensures that you can redirect traffic for sites to either server1 or server2 for a site, depending on its load. Switching websites over on setups that are not mirrored is not possible as the website data and databases on non mirrored setups reside on the system only where you created the site on, so you can not use another server to access it.
I didn't really mean it when I said overloaded. I meant when there is not enough disk space left and I need to move a client to another server. I will try Taleman's advice. Thank you very much.