How to modify the username and host name in Ubuntu

The modification method is as follows:

1. Modify User name:

Switch to root to open the following two configuration files

sudo gedit/etc/passwd

Change the "xxx" I want to change the username to "way", Save and exit

sudo gedit/etc/shadow

Also change "xxx" to "way", Save and exit

After the reboot, the name becomes Way@xxx-ubuntu:

2. Now to modify the computer name Xxx-ubuntu to Way-ubuntu

There are two steps to modifying:

①. Modify/etc/hosts:sudo gedit/etc/hosts

127.0.0.1 localhost

192.168.76.21 Way-ubuntu

# The following lines are desirable for IPV6 capable hosts

:: 1 localhost ip6-localhost ip6-loopback

fe00::0 ip6-localnet

ff00::0 Ip6-mcastprefix

Ff02::1 Ip6-allnodes

Ff02::2 ip6-allrouters

Ff02::3 ip6-allhosts

~

②. Modify/etc/hostname content to

Way-ubuntu

Save, quit, reboot, it's OK.

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