Somewhere and somehow, there are a handful of sysadmins who have never completely broken a VPS. They might even manage to maintain, update, and opt...
For further actions, you may consider blocking this person and/or reporting abuse
Some other things for your list:
pageant.exe
,ssh-agent
,gpg-agent
, etc.) make it so that even with a ridiculously complex password, you only need to enter it once every few hours.iptables
or by way of third-party tools.Whenever you're considering adding new rules (you still use
iptables
, directly, rather than viafirewalld
?), only add them to the running configuration, not the on-disk configuration. If you lock yourself out, instead of having to rebuild (even if your VPS provider doesn't offer remote there may be alternatives to rebuilding), all you need to do is reboot to make the offending rule go away. Once you've validated that your new rule does what you need it to do, then save the config to disk.You haven't lived until you've locked yourself out of a co-located physical system and had to make an hour-long drive to fix a bad firewall rule. It tends to pretty firmly instill habits.