Use SSH key to verify GitHub

The advantage of using SSH key to verify GitHub is that you do not need to enter the user name and password each time you submit the code, because, to a certain extent, it has a great impact on efficiency, although this can prevent too many times of code submission, it is also a matter of personal habits.

Today, I tried to configure the SSH key.

OS: Mac OS

Open the console and create a directory, such ~ /. SSH)

Enter the following command in the directory:

ssh-keygen -t rsa -C "[email protected]"

Note: Replace the double quotation marks with your own email address. If you encounter permission problems, you only need to add sudo to the front.

Generating public/private RSA key pair. enter file in which to save the key (/var/root /. SSH/id_rsa ):. /id_rsa # enter the path to save the file: Enter passphrase (empty for no passphrase): # directly press enter to skip enter same passphrase again: # Same as your identification has been saved in. /id_rsa.your public key has been saved in. /id_rsa.pub.the key fingerprint is: 25: 68: 54: 4A: F1: 03: AB: 78: 15: 3f: F7: 9d: F0: BF: 08: EE [email protected] The key's randomart image is: + -- [RSA 2048] ---- + | * o. | o | ** O. |. + *. +. |. o s. + | .. | .. | .... |. E .. | + --------------- +

At this time, there are two files under the. Ssh directory

id_rsa        id_rsa.pub

Id_rsa is the private key id_rsa.pub is the public key.

Then, execute the following command to add the generated key

ssh-add id_rsa

Copy the content in id_rsa.pub, find add keys in settings on GitHub, and paste it to the key. Enter the title as needed.

In this case, you can test it on the console.

$ ssh -T [email protected]The authenticity of host ‘github.com (192.30.252.128)‘ can‘t be established.RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.Are you sure you want to continue connecting (yes/no)? yesFailed to add the host to the list of known hosts (/Users/Bsn/.ssh/known_hosts).Hi bsnwong! You‘ve successfully authenticated, but GitHub does not provide shell access.

If you see the last line, the verification is successful.

 

After that, I forgot to execute the ssh-add id_rsa command at the beginning. The verification failed and it was stuck here for a long time.

 

Use SSH key to verify GitHub