Linux Network related

One: Temporary configuration network (IP, gateway, DNS) + permanent configuration

Persistent settings

Second: Set the host name for the machine in the cluster, use the/etc/hosts file to parse all the host names in the cluster, and the configuration of the cluster should be changed to the way of using the host name.

Three: SSH login, scp upload, download, ssh key login, modify SSH server port to 8888 and then login and SCP test

Four: Organize the bash command type to verify the priority of finding a command

Bash command types are divided into: aliases, internal commands, external commands

Aliases: Alias

Built-in Commands view: Man builtin

External command view, Linux system/bin,/sbin,/usr/bin,/usr/sbin directory, etc.

Command priority

1. Aliases
2. Key words
3. Functions
4. Built-in commands
5. Script or executable program ($PATH)

Five: Wildcard experiment

Linux Network related