How does git know which ssh key to use for its operations?

Git does not know, or care. It just runs ssh. How does ssh know? It looks at your ~/.ssh/config file (edit: or gets it from ssh-agent; see below): Host github.com # IdentitiesOnly yes # see below to decide if you want this IdentityFile ~/.ssh/github_id_file Host domain.com IdentitiesOnly yes # again, see below IdentityFile ~/.ssh/another_id_file Edit: … Read more

How do I add an SSH key in gitlab?

Go to your GitLab account: https://gitlab.com/ Click on Settings on the top right drop-down, which will appear once you select the icon(white-fox image [specific to my profile]). Click on Settings on the top right drop-down, which will appear once you select the icon(white-fox image). Click on SSH Keys: Add/Paste the SSH Key. How to generate … Read more

How can I connect to Oracle Database 11g server through ssh tunnel chain (double tunnel, server in company network)?

Yes, it’s possible. E.g. on Linux, run ssh -N -Llocalport:dbserver:dbport yourname@connectionserver where localport is the port on your machine which will be forwarded (can be 1521 if there is no local instance of oracle running) dbserver is the name or IP of the database server dbport is the port of the database (usually 1521) yourname … Read more

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