克隆CentOS7 出现的网络问题
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1. 克隆CentOS7 出现的网络问题
1.1. 现象:
[root@localhost ~]# systemctl startnetwork.service
Job for network.service failed because thecontrol process exited with error code. See "systemctl statusnetwork.service" and "journalctl -xe" for details.
[root@localhost ~]# systemctl statusnetwork.service
network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2017-09-22 16:54:29 CST;12s ago
Docs: man:systemd-sysv-generator(8)
Process: 2405 ExecStart=/etc/rc.d/init.d/network start (code=exited,status=1/FAILURE)
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainnetwork[2405]: RTNETLINK answers: File exists
Sep 22 16:54:29 localhost.localdomainsystemd[1]: network.service: control process exited, code=exited status=1
Sep 22 16:54:29 localhost.localdomainsystemd[1]: Failed to start LSB: Bring up/downnetworking.
Sep 22 16:54:29 localhost.localdomainsystemd[1]: Unit network.service entered failed state.
Sep 22 16:54:29 localhost.localdomainsystemd[1]: network.service failed.
1.2. 解决方案
1) 利用 ip addr查看网卡配置
[root@localhost ~]#ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue stateUNKNOWN qlen 1
link/loopback00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scopehost lo
valid_lft foreverpreferred_lft forever
inet6 ::1/128 scope host
valid_lft foreverpreferred_lft forever
2: ens33:<BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen1000
link/ether 00:0c:29:2b:d9:95 brdff:ff:ff:ff:ff:ff
inet 192.168.58.140/24 brd192.168.58.255 scope global dynamic ens33
valid_lft 1310secpreferred_lft 1310sec
inet6fe80::38dd:47dd:657e:878f/64 scope link
valid_lft foreverpreferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdiscnoqueue state DOWN qlen 1000
link/ether52:54:00:f6:93:a1 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd192.168.122.255 scope global virbr0
valid_lft foreverpreferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fastmaster virbr0 state DOWN qlen 1000
link/ether 52:54:00:f6:93:a1 brdff:ff:ff:ff:ff:ff
红色字体部分 为网卡物理地址
2) 修改配置
n vim /etc/sysconfig/network-scripts/ifcfg-eno16777736(文件名字根据实际环境选择)
UUID=ca287b1d-5142-4faa-a2e0-da94ac0c4070
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eno16777736
UUID=ca287b1d-5142-4faa-a2e0-da94ac0c4070 删除此行
DEVICE=eno16777736
ONBOOT=yes
IPADDR=192.168.58.133
NETMASK=255.255.255.0
BROADCASE=192.168.58.255
DNS1=8.8.8.8
DNS2=114.114.114.114
HWADDR=00:0c:29:2b:d9:95 添加或修改物理地址为 ip addr 查看的地址
n vim /etc/udev/rules.d/70-persistent-ipoib.rules
# ACTION=="add", SUBSYSTEM=="net",DRIVERS=="?*", ATTR{type}=="32", ATTR{address}=="?*00:0c:29:2b:d9:95",NAME="mlx4_ib3"
将其中的mac 修改为上部一样的mac地址
n mv /etc/sysconfig/network-scripts/ifcfg-eno16777736/etc/sysconfig/network-scripts/ifcfg-ens33(修改为ip addr显示的名称)
n reboot 重启电脑问题解决
[root@localhost~]# systemctl status network.service
network.service - LSB: Bring up/downnetworking
Loaded: loaded (/etc/rc.d/init.d/network;bad; vendor preset: disabled)
Active: active (exited) since Fri 2017-09-2217:17:16 CST; 2min 6s ago
Docs: man:systemd-sysv-generator(8)
Process: 687ExecStart=/etc/rc.d/init.d/network start (code=exited, status=0/SUCCESS)
Sep 2217:17:16 localhost.localdomain systemd[1]: Starting LSB: Bring up/downnetworking...
Sep 2217:17:16 localhost.localdomain network[687]: Bringing up loopbackinterface: [ OK ]
Sep 2217:17:16 localhost.localdomain network[687]: Bringing up interface ens33: [ OK ]
Sep22 17:17:16 localhost.localdomain systemd[1]: Started LSB: Bring up/downnetworking.- 克隆CentOS7 出现的网络问题
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