Page 95 - RHEL8 BOOK

Networking-IP Addressing

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IP Address Assignment
IP Address can be:
 Static IP Address
 Address that are manually assigned and do not change over time.
 Dynamic IP Address
 Addresses that are automatically assigned for a specific period of time and can change
after this period is over.
1. To Set The hostname temporarily
[root@Sun ~]# hostname sun.idesign.com

2. To view The hostname
[root@Sun ~]# hostname

3. Set hostname permanently(RHEL7)
[root@Sun ~]# hostnamectl set-hostname sun.idesign.com
[root@Sun ~]# vi /etc/sysconfig/network(RHEL6)

4. For Graphical avoiding the hostname change in below file
[root@sun ~]# vi /etc/hosts
192.168.10.1 sun sun.idesign.com

5. set ip address temporarily
[root@sun ~]#ifconfig enp0s3 192.168.1.1 netmask 255.255.255.0
or
[root@sun ~]#nmcli con mod enp0s3 ipv4.addresses 192.168.1.1/24

6. Set the manual configuration (from dhcp to static)
[root@sun ~]#nmcli con mod enp0s3 ipv4.method manual

7. To view the ip address enp0s3
[root@ sun ~]#ifconfig enp0s3

8. To view the Interface.
[root@ sun ~]# ifconfig
[root@ sun ~]# ip addr show
[root@ sun ~]# ip addr show enp0s3

S. Pradhan
(MCA, MBA-IT, BCA, CCNA, MCSA 2012, RHCE, ETHICAL HACKING)
Email Id:-spradhan.iiht@gmail.com
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