Here is the content of my .ssh/config (which worked for the old server):

Host parabola
Port 1863
HostName parabolagnulinux.org
User xylon
IdentityFile ~/.ssh/id_rsa

When I try to log in I get:
$ ssh parabola
Permission denied (publickey).

Here is my public key:
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDHm/2mz9iNhi0Ooag/fj3EnWs9fMtABVtem4FJ48tqcVtEX3hS+0FlxpifgnDRhQzDcaSFiGiAaVJuG88claXl9QJW0QVswjz0Xl+zUfm9KfdLxZ/LlZs2WoFfR1VW6pVw2JAW2QQ3T3DlvW+hi0DmdL5JQxS2yoIKS0S5cjkfCGSvXEiM0JIYh42YMNESY1UjLHkbH3U49F9Q89Hi4Pr7ot9usbsqGpYgZReQOETE8bHwBsjmmgsMi3z9hkCUs1P5c9Yfk/b26l58Z8q97MGj0V2JnG4XCPTizIy9xXoWruHinnBG6LSFQ/DnAvZe/HYLQbXSzJPrpqksTXCbvZ9b joseph@t67.eu

I also used to have sudo access on the old server.

I want to log into the server to diagnose why pbot is no longer reporting changes on labs (labs is supposed to email him the changes and then he reports them in the channel).