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In this day and age, the most widely used version control system is Git, which is operated by most developers within a team structure. This is mainly used to increase code efficiency, no matter how big or critical the project is.

In this section, we will learn how to add SSH keys to Git.

Secure Shell (SSH) keys

SSH is the abbreviation of Secure Shell. It is a key generated to introduce a secure alternative to the insecure remote communication of network protocols.

SSH keys are used to provide its users, especially system administrators, with a platform to transfer remote files, can be used to manage networks, and can also be used to remotely access operating systems.

In this short guide, we will see how to add an additional SSH port git remote. SSH server works on port 22 by default.

If we run it on any different port, we will face an error, ie error ssh: connect to host 192.158.xx.xx port 22: Connection refused. So, we can also change the ports available in our system.

git remote add

When we start a local repository, it is necessary to add a remote repository where we can efficiently push our code. This can be done with the Git command git remote add .

The command git remote addis used to establish association records for a new remote repository. By default, this command requires the local server username and IP address to add a new remote repository, as shown below:

git remote add remote_name ssh://username@ip_address/path-to-git-repo/repo.git

Example:

git remote add origin ssh://root@156.168.28.xxx/var/repositories/lau.git

A new remote was added through the above command named origin. If we change the SSH port, our code will not be pushed to the remote and we will face an error like this:

ssh: connect to host 156.168.28.xxx port 22: Connection refused
fatal: Could not read from remote repository.

Make sure you have the rights
and the repository exists.

This means that when adding git remote, an attempt was made to connect to the default SSH port 22. Since we encountered an error, port 22 was modified.

Now we will set a different port when adding the remote.

Add another SSH port Git Remote

Here, we will specify another SSH port to add a new remote.

git remote add origin ssh://username@ip_address:port/path-to-git-repo/repo.git

Example:

git remote add origin ssh://root@156.168.28.xxx:5254/var/repository/lau.git

Now we can see that the above command will push our code to the new remote on a different SSH port specified (i.e. 5254).