Command Line changes the IP address, gateway, and DNS of the Linux Nic

Address: http://hi.baidu.com/xolee/blog/item/a6455234007c3d2b5ab5f503.html

Ifconfig eth0 102.160.1 netmask 255.255.255.0

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Change gateway to 102.160.254

Route add default GW 102.160.254

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Modify DNS

Echo "nameserver 202.202.202.20">/etc/resolv. conf

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Restart NETWORK SERVICE

/Etc/rc. d/init. d/network restrart

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Attach Optical Drive

1. Create a cdrom directory under the MNT directory

CD/mnt

Mkdir CDROM

2. Mount the optical drive

Mount-T iso9660/dev/CDROM/mnt/CDROM

3. Uninstall the optical drive

Umount/mnt/CDROM

 

 

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Onfig eth0 new IP address (the original IP address will be changed after the command is restarted)

Then edit/etc/sysconfig/network-scripts/ifcfg-eth0 and modify the IP

[Aeolus @ db1 network-Scripts] $ VI ifcfg-eth0

Device = eth0 device name

Onboot = yes whether the NIC is activated when the computer is started

Bootproto = static method for obtaining IP addresses,

Ipaddr = 192.168.2.111 IP Address

Netmask = 255.255.255.0 Subnet Mask

Gateway = 219.136.241.254 Gateway (not in my VM)

[Aeolus @ db1 etc] $ VI resolv. conf

Nameserver 202.96.128.68

Nameserver 219.136.241.206

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Modify the nic ip address and gateway in Linux

We recommend that you use the terminal character to modify it.

1. Modify the IP address

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

Device = eth0

Bootproto = none

Broadcast = 192.168.1.255

Ipaddr = 192.168.1.33

Netmask = 255.255.255.0

Network = 192.168.1.0

Onboot = Yes

Userctl = No

Peerdns = No

Type = Ethernet

~

VI/etc/sysconfig/network-scripts/ifcfg-eth1

Device = eth1

Onboot = Yes

Bootproto = none

Ipaddr = 192.168.2.34

Netmask = 255.255.255.0

Userctl = No

Peerdns = No

Type = Ethernet

Network = 192.168.2.0

Broadcast = 192.168.2.255

2. Modify the Gateway

VI/etc/sysconfig/Network

Networking = Yes

Hostname = Aaron

Gateway = 192.168.1.1

3. Restart the network configuration

/Etc/init. d/network restart

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Modify configuration file

/Etc/sysconfig/network-scripts/has a configuration file

For example, the file: ifcfg-eth0 represents the configuration file of the actual Ethernet NIC 0

For example, the file: ifcfg-eth0: 1 represents the actual Ethernet NIC 0 configuration file

Domain Name Server Configuration File:/etc/resolv. conf

Modify IP Address

Effective immediately:

# Ifconfig eth0 192.168.0.20 netmask 255.255.255.0

Start effective:

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

Modify the Default Gateway

Effective immediately:

# Route add default GW 192.168.0.254

Start effective:

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

Modify DNS

Modify/etc/resolv. conf

The modification takes effect immediately and starts as well.

Modify host name

Effective immediately:

# Hostname FC2

Start effective:

Modify/etc/sysconfig/Network

End