How do I connect to ssh with a different public key?
Assuming you're on a Unix/Linux environment, you can create or edit the file ~/.ssh/config
.
That config file allows you to establish the parameters to use for each host; so, for example:
Host host1
HostName <hostname_or_ip>
IdentityFile ~/.ssh/identity_file1
Host Host2
HostName <hostname_or_ip2>
User differentusername
IdentityFile ~/.ssh/identity_file2
Note that host1 and host2 can also be not hostnames, but rather labels to identify a server.
Now you can log onto the to hosts with:
ssh host1
ssh host2