I'm searching for a tool to manage and monitor hundreds of Unix servers.
90% are on Debian but from Debian 7 to Debian 9.
I tried Cockpit and I really liked it but it is limited to 20 servers.
Webmin is not good enough.
I tried to install a CentOS server with SpaceWalk on it but I can't take the control of Debian's servers.
So I would like to know if you have some advice for me.
Tank you all.