Dry goods directly to the system as a demonstration redhat7.1
After entering the host name system queries the current system
hotsname
[root@ISCSI ~]# hostname
ISCSI
View profile hostname
cat /etc/hostname
[root@ISCSI ~]# cat /etc/hostname
ISCSI
Modify the hostname
vim /etc/hostname
[root@ISCSI ~]# vim /etc/hostname
Note: vim, after opening the file, press the keyboard i, enter edit mode, ISCSI modify this field, the default is localhost, I became ISCSI modify, edit When finished, press the esc key, then press: Enter wq, save and exit
After modifying the hostname reboot
reboot
View name after restart
[root@OANFS ~]# hostname
OANFS
Reproduced in: https: //www.jianshu.com/p/87ce81a216c5