What is git's ssh?

In git, the full name of ssh is "Secure Shell", which refers to the "Secure Shell Protocol". It is a protocol designed to provide security for remote login sessions and other network services; using the SSH protocol can effectively prevent Solve the problem of information leakage during remote management and make up for the loopholes in the network.

The operating environment of this tutorial: Windows 7 system, Git version 2.30.0, Dell G3 computer.

SSH is a security authentication protocol, and Git is a version management tool.

1. What is ssh?

SSH is the abbreviation of Secure Shell (Secure Shell Protocol), which was developed by the Network Working Group of the IETF.

SSH is currently the most reliable protocol designed to provide security for remote login sessions and other network services.

Using the SSH protocol can effectively prevent information leakage during remote management and make up for loopholes in the network.

2. Key-based security authentication

When communicating using the ssh protocol, it is recommended to use the key-based authentication method. You must create a pair of keys for yourself and place the public key on the server you need to access. If you want to connect to an SSH server, the client software will make a request to the server to use your key for security verification. After the server receives the request, it first searches for your public key in your home directory on the server, and then compares it with the public key you sent. If the two keys match, the server encrypts the "challenge" with the public key and sends it to the client software. After the client software receives the "challenge", it can decrypt it with your private key and send it to the server.

3. SSH key generation

Under windows we can use Git Bash.exe to generate the key. Git Bash can be opened through the start menu or right-click menu

git bash execution command, life public key and private key

ssh-keygen -t rsa

After executing the command, generate the public key and private key with the following names under the window local user.ssh directory C:\Users\username.ssh:

4 , ssh key configuration

After the key is generated, you need to configure the key locally on github for smooth access.

Add the contents of the id_rsa.pub file in the key section, and then click the "Add SSH key" button to complete the configuration.

Recommended study: "Git Tutorial"

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