What is the method to log in with linux ssh alias?

In order to facilitate login to the server, we generally use tools such as putty, securecrt and so on. How to log in through the server alias in the terminal?

You can create the ~/.ssh/config file and specify the login information and verification method for each server, as shown below:

$ vim ~/.ssh/config

host www
  hostname www.ttlsa.com
  port 22
  user root
  identityfile ~/.ssh/id_rsa.pub
  identitiesonly yes

host bbs
  hostname 115.28.45.104
  user anotheruser
  pubkeyauthentication no

Then directly specify the alias to log in

shell
$ ssh www
1 $ ssh www
Option comments:

hostname specifies the login host name or ip address
port specifies the login port number
user login user Name
identityfile login public key file
identitiesonly only accepts ssh key login
pubkeyauthentication

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