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如何删除CentOS7.2安装自带的virbr0

2017-07-19 16:58 405 查看
安装完centos7之后会遇到virbr0的虚拟网卡,该网卡存在会导致DNS服务器无法正常工作,下面介绍如何正确删除该网卡。
第一步:
[root@localhost ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
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: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:ca:2e:fc brd ff:ff:ff:ff:ff:ff
inet 192.168.0.110/24 brd 192.168.0.255 scope global dynamic eno16777736
valid_lft 6769sec preferred_lft 6769sec
inet6 fe80::20c:29ff:feca:2efc/64 scope link
valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:d1:33:3a brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:d1:33:3a brd ff:ff:ff:ff:ff:ff
第二步:

[root@localhost ~]# virsh net-destroy default
网络 default 被删除
第三步:

[root@localhost ~]# virsh net-undefine default
网络 default 已经被取消定义
第四步:

[root@localhost ~]# systemctl restart libvirtd.service
打完收工
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