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  • CentOS7添加网卡

    博主本人平和谦逊,热爱学习,读者阅读过程中发现错误的地方,请帮忙指出,感激不尽


     

    虚拟机添加网卡会遇到的问题:

    使用VMware Workstation虚拟机安装好CentOS7虚拟机后,添加第二块网卡以后,进入CentOS 7系统后,看不到网卡配置文件

    解决方案:

    • 使用nmcli con show命令,查看网卡的UUID信息,记下UUID值
    • 使用ip addr命令查看网卡信息,记下ens35网卡的MAC地址(原配置文件没有这个内容,手动增加)
    • 将 /etc/sysconfig/network-scripts/目录中ifcfg-ens32文件复制一份,并命名为 ifcfg-ens35,重新修改配置文件,注意修改必要的硬件信息。
    • 最后重新启动网卡即可。

    操作案例:添加ens35网卡,IP设置为192.168.247.231(先在虚拟机外面添加网卡):

    1.查看HWDDR:

    [root@system01 ~]# ip address 
    …….
        link/ether 00:0c:29:b2:90:f9 brd ff:ff:ff:ff:ff:ff

    2.查看UUID:

    [root@system01 ~]# nmcli connection show 
    NAME                UUID                                  TYPE      DEVICE 
    …
    Wired connection 2  80ce6376-8603-3c4b-8ee7-1432cebb924a  ethernet  ens35  

    3.添加网卡配置

    [root@system01 network-scripts]# cp -a ifcfg-ens32  ifcfg-ens35
    修改ens35配置:
    TYPE=Ethernet
    PROXY_METHOD=none
    BROWSER_ONLY=no
    BOOTPROTO=static
    DEFROUTE=yes
    IPV4_FAILURE_FATAL=no
    IPV6INIT=yes
    IPV6_AUTOCONF=yes
    IPV6_DEFROUTE=yes
    IPV6_FAILURE_FATAL=no
    IPV6_ADDR_GEN_MODE=stable-privacy
    NAME=ens35
    HWADDR=00:0c:29:b2:90:f9
    UUID=80ce6376-8603-3c4b-8ee7-1432cebb924a
    DEVICE=ens35
    ONBOOT=yes
    IPADDR=192.168.247.231
    GATEWAY=192.168.247.2
    DNS1=8.8.8.8
    DNS2=8.8.4.4
    PREFIX=24

    4.重启与验证

    [root@system01 ~]# service network restart
    [root@system01 ~]# ifconfig ens35
    ens35: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
            inet 192.168.247.231  netmask 255.255.255.0  broadcast 192.168.247.255
            inet6 fe80::8be8:ead6:ec47:e743  prefixlen 64  scopeid 0x20<link>
            ether 00:0c:29:b2:90:f9  txqueuelen 1000  (Ethernet)
            RX packets 1065  bytes 128768 (125.7 KiB)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 532  bytes 98711 (96.3 KiB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    [root@system01 ~]# 

    如上,网卡添加完成!

    如果虚拟机是最小化安装,一般的可以安装一些工具方便使用:

    查看IP:
    [root@localhost ~]# ip a  (或是:ip addr)
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: ens32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
        link/ether 00:0c:29:a8:58:94 brd ff:ff:ff:ff:ff:ff
        inet 192.168.247.12/24 brd 192.168.247.255 scope global noprefixroute ens32
           valid_lft forever preferred_lft forever
        inet6 fe80::59b6:8294:5009:8ceb/64 scope link noprefixroute 
           valid_lft forever preferred_lft forever
    [root@localhost ~]# 
    
    网络连通测试:
    [root@localhost ~]# ping www.baidu.com
    PING www.a.shifen.com (183.232.231.174) 56(84) bytes of data.
    64 bytes from 183.232.231.174 (183.232.231.174): icmp_seq=1 ttl=128 time=6.36 ms
    64 bytes from 183.232.231.174 (183.232.231.174): icmp_seq=2 ttl=128 time=6.68 ms
    
    安装wget:
    [root@localhost ~]# yum install wget 
    配置yum源:
    [root@localhost ~]# cd /etc/yum.repos.d/
    [root@localhost yum.repos.d]# mv C* yum_backup/
    [root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
    [root@localhost yum.repos.d]# yum clean all
    或是:
    [root@rhcsa ~]# yum-config-manager --add-repo="http://mirrors.163.com/.help/CentOS7-Base-163.repo"     
    
    安装vim编辑器:
    [root@localhost ~]# yum install vim -y
    安装ifconfig:
    [root@localhost ~]# yum install net-tools -y
    安装bind-utils:
    [root@localhost ~]# yum provides nslookup
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    Warning: 3.0.x versions of yum would erroneously match against filenames.
     You can use "*/nslookup" and/or "*bin/nslookup" to get that behaviour
    [root@localhost ~]# yum provides *bin/nslookup
    [root@localhost ~]# yum install bind-utils -y
    [root@localhost ~]# nslookup www.baidu.com  
    
    [root@localhost yum.repos.d]# yum install openssh-clients-5.3p1-124.el6_10.x86_64 -y

    转载需注明出处

    水果大佬
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  • 原文地址:https://www.cnblogs.com/tanshouke/p/12190525.html
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