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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