If you often use ssh+tmux combination and ssh keys forwarding, you’ve definitely been in an unpleasant situation: connect to some remote machine via ssh and create a tmux session use it happily detach from tmux and disconnect from server connect again (e.g. next day) and attach to the tmux session push something to git (or connect to another server)… … Permission denied (publickey). Let’s discuss why this is happening. The magic behind ssh forwarding is quite simple: ssh-agent creates...
