How to disable user expiration in linux?

Question

linux

Gentlemen, how to disable user expiration in linux?
The fact is that the hosting provided me with a machine with root access, and for security reasons I decided to return everything to my beloved sudo.
But here's the team: it
usermod --expiredate 1 root
turned out to be superfluous, because. now there is no root at all, and sudo su is still sometimes necessary.
Of course, you can put just some very distant date instead of "1", but this will not completely disable the expiration.
usermod --expiredate 0 root
- does not disable user expiration.
How to do it right? Thanks in advance.

Answer 1

usermod --expiredate root
Or
usermod --expiredate '' root