Network Configuration in RHEL ( RedHat Linux )

What is IP :-

=>IP stands for internet protocol.

=>IP is main protocol responsible for routing packets across networks, including the internet.

=>IPv4 is mostly responsible for routing packets on modern networks.

=>IPv6 will soon evolve as primary protocol used for this purpose as all the IPv4 addresses have been allocated.

Subnet mask : -

=>Each IP address is made up of two pieces

1.Network portion-defines the network address-what network to route to?

2.Host portion-defines hosts on that specific network

=>A subnet masks is a 32-bit number that tells the router which bits of the IP address are for the network portion and which bits for host portion

=>Subnet mask is a binary number but is also usually communicated in dotted decimal format

=>Example-11111111.11111111.11111111.00000000

Example is dotted decimal format-255.255.255.0

IP address classes: -

Check IP : -

#ifconfig |less or #ip addr or #ifconfig

Assign IP Address : -

Go to Ethernet card configuration directory -

# cd /etc/sysconfig/network-scripts/

Check the Network adapter name : -

[root@localhost network-scripts]#ls

Open Network File :-

[root@localhost network-scripts]#vi ifcfg-ens32 (it may be change in other machine)

SET STATIC IP ADDRESS:-

SAVE AND EXIT :-

#wq

RESTART NETWORK :-

#Systemctl restart NetworkManager

Now you can check the ip.

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