The hostname step of the change under Linux

Hostname changed under Linux gpdb

Step 1, execute the vi/etc/sysconfig/network command

Networking=yes
Hostname=gpdb

Second step, execute hostname gpdb order

Step three, execute the vi/etc/hosts command
192.168.1.121 gpdb # Added by NetworkManager
127.0.0.1 localhost.localdomain localhost
:: 1 gpdb localhost6.localdomain6 Localhost6

Step four, execute the reboot command again after you start the computer or use the Service Network Restart command to start the network service again after the effective

The default content of the/etc/sysconfig/network file before the change is
Networking=yes
Hostname=bogon

The default content of the/etc/hosts file before the change is
192.168.1.121 Bogon # Added by NetworkManager
127.0.0.1 localhost.localdomain localhost
:: 1 Bogon localhost6.localdomain6 Localhost6

The hostname step of the change under Linux