Shulou(Shulou.com)06/02 Report--

The common way for Linux to modify hostname is to manually append "HOSTNAME=xxxxx" to / etc/sysconfig/network and restart the system, which does not work in Oracle Linux 7.

So how do I configure hostname in Oracle Linux 7?

Derived from:

How to Configure hostname in Oracle Linux 7 (Doc ID 2049221.1)

Solution:

Use any of the following three methods to modify the hostname in Oracle Linux 7

1. Use hostname control utility: hsotnamectl

2. Use NetworkManager command line tool: nmcli

Edit / etc/hostname file directly (a reboot afterwards is required)

1. Use hsotnamectl which is a command-line client to systemd-hostnamed service

Get current hostname status:

[root@localhost ~] # hostnamectl status

Static hostname: localhost.localdomain

Operating System: Oracle Linux Server 7.1

CPE OS Name: cpe:/o:oracle:linux:7:1

Kernel: Linux 3.8.13-55.1.6.el7uek.x86_64

Architecture: x86_64

Set hostname:

[root@localhost ~] # hostnamectl set-hostname oraclelinux.oracle.com

[root@localhost ~] #

Re-login terminal session:

[root@oraclelinux ~] # hostnamectl status

Static hostname: oraclelinux.oracle.com

Operating System: Oracle Linux Server 7.1

CPE OS Name: cpe:/o:oracle:linux:7:1

Kernel: Linux 3.8.13-55.1.6.el7uek.x86_64

Architecture: x86_642. Nmcli

Check current hostname:

[root@localhost ~] # nmcli general hostname

Localhost.localdomain

Modify hostname and restart ystemd-hostnamed service:

[root@localhost ~] # nmcli general hostname oraclelinux.oracle.com

[root@localhost ~] # systemctl restart systemd-hostnamed

Re-login terminal session:

[root@oraclelinux ~] # hostname

Oraclelinux.oracle.com

3. Edit / etc/hostname

View current content:

[root@localhost ~] # cat / etc/hostname

Localhost.localdomain

Replace file content with new hostname:

[root@localhost ~] # echo "oraclelinux.oracle.com" > / etc/hostname

[root@localhost ~] # cat / etc/hostname

Oraclelinux.oracle.com

Restart system and verify:

[root@oraclelinux ~] # hostname

Oraclelinux.oracle.com

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