How to add IP under CentOS
First, add a single IP method:
# cd/etc/sysconfig/network-scripts
# CP Ifcfg-eth0 ifcfg-eth0:0
# Nano ifcfg-eth0:0 Copy Code
Copy a eth0 file with the CP command, the new file name is eth0:0, and then edit the file with the nano. Not used to using the Nano can be used with the VI command. Edit after opening file:
device=eth0:0 #此处添加: 0, keeping the same file name, adding multiple IP increments sequentially
Onboot=yes #是否开机激活
Bootproto=static #静态IP, please enter DHCP if you need DHCP access
ipaddr=192.168.1.2 #此处修改为要添加的IP
netmask=255.255.255.0 #子网掩码根据你的实际情况作修改 Copy Code
After the file is edited, run:
/etc/init.d/network Reload Copy Code
Use Ifconfig to see if the new IP has been added.
Second, the bulk add IP:
Create a range file under/etc/sysconfig/network-scripts, or you can edit it with VI
NANO/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETH0-RANGE0 Copy Code Device=eth0
Onboot=yes
Bootproto=static
ipaddr_start=192.168.2.2 #起始IP
ipaddr_end=192.168.2.254 #结束IP
Clonenum_start=1 #表示这段IP网卡号从eth0:1 start
netmask=255.255.255.0 Copy Code
Subnet mask setting for non-class inter-domain routing (CIDR) reference: http://www.taohost.net/tools/subnet.htm
/29 (5 usable) NETMASK = 255.255.255.248
/28 (usable) NETMASK = 255.255.255.240
/27 (usable) NETMASK = 255.255.255.224
/26 (usable) NETMASK = 255.255.255.192
/25 (usable) NETMASK = 255.255.255.128
/24 (253 usable) NETMASK = 255.255.255.0
Third, the method of configuring IP address for a new network card:
If you are IP for the second network card, edit a ifcfg-eth1 file in the/etc/sysconfig/network-scripts directory:
Device=eth1
Onboot=yes
Bootproto=static
ipaddr=192.168.0.18
netmask=255.255.255.0
gateway=192.168.0.1 Copy Code
Modify the parameters of Ipaddr,netmask and gateway.
Run:
/etc/init.d/network Reload
Use Ifconfig to see if the new IP has been added.
Linux FreeBSD Server Add IP method
Ways to add IP to FreeBSD:
Vi/etc/rc.conf
The main IP address + subnet mask
Second line and thereafter with the ' alias ' in the Config line and netmask of
255.255.255.255 and proper broadcast IP.
ALso, May is fxp0, might be sis0, rltk0, etc.
ifconfig_fxp0= "inet 10.10.10.34 netmask 255.255.255.248"
ifconfig_fxp0_alias0= "inet 10.10.10.35 netmask 255.255.255.255"
ifconfig_fxp0_alias1= "inet 10.10.10.36 netmask 255.255.255.255"
Ifconfig_fxp0_alias2= "inet 10.10.10.37 netmask 255.255.255.255"
etc..
Also You can run/stand/sysconfig
Choose Configure, networking, interfaces, then NIC card (Fxp0, RLTK, DLink,
Rl0, VNE, etc ...) |
Linux Debian Server method to add IP.
The method by which the Debian server adds IP.
To add secondary IPs in Debian do:
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