Red hat Linux ip configuration

 

When I first came into contact with Linux, I first needed to access the Internet. Configuring IP addresses is the first course to learn how to use Linux.

 

1. Set IP addresses

View your IP Nic

Ifconfig-

 

Find the network card you want to use

Vi/etc/sysconfig/network-scripts/ifcfg-eth0

Www.2cto.com

# Intelconfiguration82801ba/BAM/CA/CAMEthernetController

DEVICE = eth0 (NIC interface name)

BOOTPROTO = static (value: static/none/DHCP)

# BROADCAST = 192.168.120.255

HWADDR = 00: A2: A5: F5: 80: 55

IPADDR = 192.168.120.54 (IP address)

NETMASK = 255.255.255.0 (subnet mask)

# NETWORK = 192.168.120.0

ONBOOT = yes (whether it takes effect automatically yes/no)

 

2. Set the gateway address

Vi/etc/sysconfig/network

 

NETWORKING = yes

HOSTNAME = localhost. localdomain

GATEWAY = 192.168.120.1 (GATEWAY)

 

3. Set the DNS address

Vi/etc/resolv. conf

 

Nameserver 192.168.20.36 (primary DNS)

Nameserver 202.102.24.35 (secondary DNS)

Searchlocaldomain

 

4. The settings are complete.

/Etc/init. d/network restart

 

 

In addition, Linux can configure one network card with two ip addresses or multiple network cards under one IP address.