Modifying the hostname of Linux learning

1. Temporarily modify host name

Display host Name:

[Email protected]:~$ hostnamelocalhost

Modify Host Name:

[Email protected]:~$ sudo hostname orcl1[email protected]:~$ HOSTNAMEORCL1

2. Permanently modify the host name

The above modification is only a temporary change, after the restart is back to the original.

Step 1:

Modify the hostname in/etc/sysconfig/network

Vi/etc/sysconfig/networkhostname=localhost.localdomain  #修改localhost. Localdomain to ORCL1

Modify the hostname entry for the network. The point is preceded by the hostname, and the dot is followed by the domain name. No point is the host name.

This is permanently modified and takes effect after reboot. Currently I do not know how to take effect immediately.

To take effect immediately, you can use the first method at the same time.

Step 2:
Modify the/etc/hosts file

vi/etc/hosts127.0.0.1    localhost.localdomain  #修改localhost. Localdomain to ORCL1

Shutdown-r now    #最后, restart the server.

Modifying the hostname of Linux learning