Network Interface Information File of debian or ubuntu

The Network Interface Information File of debian or ubuntu-Debian information for the Linux release. For details, refer to the following section. Author: Love and destiny in Wuhan
Root @ havp :~ # Cat/etc/network/interfaces
# The local loopback interface auto indicates that the interface is automatically enabled upon startup.
Auto lo
Iface lo inet loopback
# Eth0 settings
Auto eth0
Iface eth0 inet static
Address 192.168.1.250 # IP address
Netmask 255.255.255.0 # Subnet Mask
Network 192.168.1.0 # network no.
Broadcast 192.168.1.255 # broadcast address
Gateway 192.168.1.1 # gateway address
Dns-nameservers 202.103.0.117 202.103.24.68 # dns address, which is generally set in/etc/resolv. conf

# Set the second Nic information. Note that all network interfaces of debian or other debian versions are in one file, which is more convenient than # redhat.

Auto eth1
Iface eth1 inet static
Address 192.168.2.250
Netmask 255.255.255.0
Network 192.168.2.0
Broadcast 192.168.2.255

# Sub-interface settings, used to set multiple ip addresses for one Nic
Auto eth0: 1
Iface eth0: 1 inet static
Address 202.103.24.5
Netmask 255.255.255.0
Network 202.103.24.0
Broadcast 202.103.0.255

# The mac address of the NIC is customized. In some special cases, the NIC or machine is changed, but the mac address still needs to be a previous one, as shown below:
Auto eth3
Iface eth3 inet static
Pre-up ifconfig eth3 hw ether xx: xx # check whether this sentence is added. Check whether eth3 corresponds to the preceding statement.
Address 192.168.3.250 # xx: xx is the specified mac
Netmask 255.255.255.0
Network 192.168.3.0
Broadcast 192.168.3.255

# Obtain the address through dhcp, which is the easiest to configure
Auto eth4
Iface eth4 inet dhcp
# If you do not need to write anything else, the dhcp server will automatically obtain the ip address when it is started.

# Enable Configuration

# After the configuration is modified, you can run the following command to update the configuration or restart the machine.

# Root @ havp :~ #/Etc/init. d/networking restart