linux ssh alias login tips

For easy access to the server, we use putty, SecureCRT and other tools. How do I use a server alias to log in at the terminal?

You can create ~/.ssh /config files and specify login information and authentication methods for each server, as follows:

$ 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 specify the alias directly to log in

Shell
$ ssh www
1 $ ssh www
Option notes:

HostName specifies the login hostname or IP address
Port specifies the port number for the login
User login username
IdentityFile login public key file
IdentitiesOnly only accepts SSH key logins
PubkeyAuthentication