Unable to install .pfx certificate on jenkins

Question

I have to checkout from a git repo on a private network. I have the required pfx certificate installed on my system and I can fetch/clone the repo using the command line while I am connected to the VPN after providing the password in the prompt. I can't however do this on Jenkins. I tried installing the pfx in Jenkins credential manager but the file isn't even uploading. Jenkins no more provides vpn plugin support. Is there a way to do this?

ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Command "C:\Program Files\Git\bin\git.exe fetch --tags --force --progress -- ssh://[email protected]/srv/git/leaveRepo.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stdout: 
stderr: ssh: connect to host 10.247.186.70 port 22: Connection timed out
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Answer 1

From documentation:

• The credential must be a private key credential if the remote git repository is accessed with the ssh protocol.
• The credential must be a username / password credential if the remote git repository is accessed with http or https protocol.

So, you should export a private key from pfx bundle and add it to Jenkins using credentials of type SSH username with private key.