Can you and is it advisable to use the same ssh ke

Question

Can you use the same ssh key for different version control hosting services?

And if you can, what are the pros and cons?

Scenario: I have ssh keys that I am using on my computer, can I and should I use the same ssh keys with gitlab/gitbucket on the same computer?

Answer 1

No, it is not advisable: a private key should remain used for only one service, that way you can revoke/change it just for that service.

What you can do is set up a ~/.ssh/config file in which you can associate the right private key with the right host, as explained here.