1.简单解决

chkconfig network on

chkconfig NetworkManager off
service NetworkManager stop
service network restart

 

还是不行的话接着

2解决virbr0问题

service network restart

2.1 重启网络

还是报错

[root@localhost ~]# journalctl -xe
Mar 27 01:46:09 localhost.localdomain polkitd[639]: Registered Authentication Agent for unix-process:3228:511341 (system bus name :1.147 [/u
Mar 27 01:46:09 localhost.localdomain systemd[1]: Starting LSB: Bring up/down networking...
-- Subject: Unit network.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit network.service has begun starting up.
Mar 27 01:46:11 localhost.localdomain NET[3361]: /etc/sysconfig/network-scripts/ifup-post : updated /etc/resolv.conf
Mar 27 01:46:11 localhost.localdomain network[3235]: Bringing up loopback interface:  [  OK  ]
Mar 27 01:46:11 localhost.localdomain NetworkManager[646]: <info>  [1585298771.5452] agent-manager: req[0x55beaec813c0, :1.158/nmcli-connect
Mar 27 01:46:11 localhost.localdomain NetworkManager[646]: <info>  [1585298771.5703] audit: op="connection-activate" uuid="79df13d6-0d33-4de
Mar 27 01:46:11 localhost.localdomain network[3235]: Bringing up interface eno16777736:  Error: Connection activation failed: No suitable de
Mar 27 01:46:11 localhost.localdomain network[3235]: [FAILED]

2.2 干 掉virbr0

接着看,有virbr0,干 掉

[root@localhost ~]# ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 512  bytes 44544 (43.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 512  bytes 44544 (43.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:8c:be:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

2.3禁用libvirtd 服务

干 掉,在 CentOS 7 系统的安装过程中,如果有选择相关虚拟化的的服务安装系统后,启动网卡时会发现有一个以网桥连接的私网地址的 virbr0 网卡,这个是因为在虚拟化中有使用到 libvirtd 服务生成的,如果不需要可以关闭后去掉

[root@node ~]# ifconfig virbr0 down
[root@node ~]# brctl delbr virbr0  #brctl删除网桥
[root@node ~]# systemctl stop libvirtd.service    
[root@node ~]# systemctl disable libvirtd.service    # 禁用libvirtd 服务开机自启动
[root@node ~]# systemctl status libvirtd.service  
root@localhost ~]# ifconfig virbr0 down
[root@localhost ~]# brctl delbr virbr0  #brctl
[root@localhost ~]# systemctl stop libvirtd.service
[root@localhost ~]# systemctl disable libvirtd.service
Removed symlink /etc/systemd/system/multi-user.target.wants/libvirtd.service.
Removed symlink /etc/systemd/system/sockets.target.wants/virtlogd.socket.
[root@localhost ~]# systemctl status libvirtd.service
● libvirtd.service - Virtualization daemon
   Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; disabled; vendor preset: enabled)
   Active: inactive (dead) since Fri 2020-03-27 01:56:04 PDT; 20s ago
[root@localhost ~]# ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 512  bytes 44544 (43.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 512  bytes 44544 (43.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@localhost ~]# 

 3:解决ens33问题

3.1 无ens33文件,


若ifconfig -a出现ens33,无enozzzzzzzz,则mv ifcfg-enzzzz ifcfg-ens33,修改device name 为ens33

 

3.2删除rules文件

[root@localhost network-scripts]# cd /etc/udev/rules.d
[root@localhost rules.d]# ll
total 8
-rw-r--r-- 1 root root 628 Feb  5  2019 70-persistent-ipoib.rules
-rw-r--r-- 1 root root 161 Mar 26 22:38 90-eno-fix.rules
[root@localhost rules.d]# rm -rf *.rules
[root@localhost rules.d]# ll
total 0

ifconfig -a

[root@localhost rules.d]# ifconfig -a
eno16777736: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 00:0c:29:24:77:5f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 512  bytes 44544 (43.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 512  bytes 44544 (43.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0-nic: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 52:54:00:8c:be:b1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@localhost rules.d]# 

 3.3编辑网卡文件,保证文件名,name device一致

 

 

 3.4 启动网卡,验证

ifconfig eno16777736 up

 

 

 




posted on 2020-03-26 16:22  pu20065226  阅读(811)  评论(0编辑  收藏  举报