Centos7如何添加ip地址和網(wǎng)關(guān)

本篇內(nèi)容介紹了“Centos7如何添加ip地址和網(wǎng)關(guān)”的有關(guān)知識，在實際案例的操作過程中，不少人都會遇到這樣的困境，接下來就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧！希望大家仔細(xì)閱讀，能夠?qū)W有所成！

1.查看os版本

1. [root@oracle network-scripts]# cat /etc/redhat-release
   

2. CentOS Linux release 7.2.1511 (Core)

2.查看鏈接的是哪個網(wǎng)口，很多時候服務(wù)器上不只一個網(wǎng)口，本例就有4個，需要判斷出目前網(wǎng)線插上的是哪個網(wǎng)口，本例是em1處于鏈接狀態(tài)，那么配置ip的時候就配置這個em1

1. [root@oracle network-scripts]# nmcli dev status
   

2. DEVICE  TYPE      STATE        CONNECTION
   

3. em2     ethernet  unavailable  --
   

4. p1p1    ethernet  unavailable  --
   

5. p1p2    ethernet  unavailable  --
   

6. em1     ethernet  connected    --
   

7. lo      loopback  unmanaged    --

3.修改文件，紅色是添加和修改的，BOOTPROTO=dhcp，從dhcp以后從改為static,

NM_CONTROLLED=no 表示該口將通過該配置文件進(jìn)行設(shè)置，
ONBOOT=yes的意思是這個網(wǎng)卡開機(jī)自動啟動。

vi /etc/sysconfig/network-scripts/ifcfg-em1

1. TYPE=Ethernet
   

2. BOOTPROTO=static
   

3. IPADDR=172.24.80.236
   

4. NETMASK=255.255.255.0
   

5. GATEWAY=172.24.80.1
   

6. NM_CONTROLLED=no
   

7. DEFROUTE=yes
   

8. PEERDNS=yes
   

9. PEERROUTES=yes
   

10. IPV4_FAILURE_FATAL=no
    

11. IPV6INIT=yes
    

12. IPV6_AUTOCONF=yes
    

13. IPV6_DEFROUTE=yes
    

14. IPV6_PEERDNS=yes
    

15. IPV6_PEERROUTES=yes
    

16. IPV6_FAILURE_FATAL=no
    

17. NAME=em1
    

18. UUID=67ac8318-e715-4081-9ef7-781140c62cb1
    

19. DEVICE=em1
    

20. ONBOOT=yes

4.重啟服務(wù)

1. systemctl restart network.service

5.驗證接口是否配置正確

1. [root@oracle network-scripts]# ip add
   

2. 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
   

3.     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   

4.     inet 127.0.0.1/8 scope host lo
   

5.        valid_lft forever preferred_lft forever
   

6.     inet6 ::1/128 scope host
   

7.        valid_lft forever preferred_lft forever
   

8. 2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
   

9.     link/ether d0:94:66:3e:ae:d0 brd ff:ff:ff:ff:ff:ff
   

10.     inet 172.24.80.236/24 brd 172.24.80.255 scope global em1
    

11.        valid_lft forever preferred_lft forever
    

12.     inet6 fe80::d294:66ff:fe3e:aed0/64 scope link
    

13.        valid_lft forever preferred_lft forever
    

14. 3: em2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    

15.     link/ether d0:94:66:3e:ae:d1 brd ff:ff:ff:ff:ff:ff
    

16. 4: p1p1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    

17.     link/ether d0:94:66:3e:bf:03 brd ff:ff:ff:ff:ff:ff
    

18. 5: p1p2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    

19.     link/ether d0:94:66:3e:bf:04 brd ff:ff:ff:ff:ff:ff

6.查看網(wǎng)口狀態(tài)

1. [root@oracle network-scripts]# nmcli dev status
   

2. DEVICE  TYPE      STATE        CONNECTION
   

3. em2     ethernet  unavailable  --
   

4. p1p1    ethernet  unavailable  --
   

5. p1p2    ethernet  unavailable  --
   

6. em1     ethernet  unmanaged    --
   

7. lo      loopback  unmanaged    --

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