Linux Nic configuration details

Files: etcsysconfignetwork-scriptsifcfg-eth0 below & amp; 20540; common in all basic profiles

File:/etc/sysconfig/network-scripts/ifcfg-eth0

The following values are common in all basic configuration files:
* DEVICE = name. here, name is the name of the physical DEVICE (except for the dynamically allocated ppp device,
Its name is "logical name ".
* IPADDR = addr. here addr is the IP address.
* NETMASK = mask. here, the mask is the network mask.
* NETWORK = addr. here, addr is the NETWORK address.
* BROADCAST = addr. here, addr is the BROADCAST address.
* GATEWAY = addr. here, addr is the GATEWAY address.
* ONBOOT = answer. here, answer takes one of the following values:
O yes -- the device will be activated during boot.
O no -- this device is not activated during boot.
* USERCTL = answer. here, answer takes one of the following values:
O yes -- non-root users can control the device.
O no -- non-root users are not allowed to control the device.
* BOOTPROTO = proto, where proto takes one of the following values:
O none -- protocol when boot is not used.
O bootp -- use the bootp protocol.
O dhcp-use the dhcp protocol.

Terminal: query IP address: ifconfig-
Modify the lan ip address:
1. log on as root
2. modify the configuration file
/Etc/sysconfig/network-scripts/ifcfg-eth0

The file content is as follows:
\ DEVICE = eth0
HWADDR = 00: 0C: 29: A2: 8C: B2
ONBOOT = yes
TYPE = Ethernet
NETMASK = 255.255.255.0
IPADDR = 192.168.1.11-> Change to 192.168.1.12
GATEWAY = 192.168.1.1

Reboot

Ifconfig eth0 new ip then edit/etc/sysconfig/network-scripts/ifcfg-eth0, modify ip
Ifconfig eth0 New IP

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

1. modify the IP address

[Aeolus @ db1 network-scrIPts] $ vi ifcfg-eth0

DEVICE = eth0

ONBOOT = yes

BOOTPROTO = static

IPADDR = 219.136.241.211

NETMASK = 255.255.255.255.128

GATEWAY = 219.136.241.254

2. modify the Gateway

Vi/etc/sysconfig/network

NETWORKING = yes

HOSTNAME = Aaron

GATEWAY = 192.168.1.1

3. modify DNS

[Aeolus @ db1 etc] $ vi resolv. conf

Nameserver 202.96.128.68

Nameserver 219.136.241.206

4. restart network configuration

/Etc/init. d/network restart

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