linux – 无法启动CentOS 7“网络”服务

发布时间：2020-12-13 18:45:01 所属栏目：Linux 来源：网络整理

导读：禁用和删除“NetworkManager”服务后,无法启动CentOS 7“网络”服务. 当我检查网络服务状态时,它会出现以下错误： #systemctl status network.servicenetwork.service - LSB: Bring up/down networking Loaded: loaded (/etc/rc.d/init.d/network) Active: f

禁用和删除“NetworkManager”服务后,无法启动CentOS 7“网络”服务.
当我检查网络服务状态时,它会出现以下错误：

#systemctl status network.service
network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network)
   Active: failed (Result: exit-code) since Fri 2015-01-16 22:30:46 GMT; 38s ago
  Process: 4857 ExecStart=/etc/rc.d/init.d/network start (code=exited,status=1/FAILURE)

Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain network[4857]: RTNETLINK answers: File exists
Jan 16 22:30:46 localhost.localdomain systemd[1]: network.service: control process exited,code=exited status=1
Jan 16 22:30:46 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.
Jan 16 22:30:46 localhost.localdomain systemd[1]: Unit network.service entered failed state.

在早期的CenOS中,从“NetworkManager”服务切换到网络服务时似乎没有任何问题.
有关导致问题的原因以及如何解决问题的任何想法？

Note: I used yum erase to remove network manage service.

以下是其他信息：

/etc/sysconfig/network-script/ifcfg-enp8s0
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=enp8s0
UUID=453a07fe-1b07-4f29-bc32-f2168e50706a
ONBOOT=yes
HWADDR=XXXXXXXXXXX
MACADDR=XXXXXXXXXX
PEERDNS=yes
PEERROUTES=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes

/etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

/etc/resolv.conf
; generated by /usr/sbin/dhclient-script
search customer.marples.midcity.lan
nameserver 10.241.128.1

解决方法

在Centos7.0中,禁用NetworkManager将保留为NetworkManager配置的dhcp客户端运行.这会导致错误消息RTNETLINK答案：网络服务启动时存在文件.

陈旧的dhclient进程有额外的“好处”,当租约到期时你的dhclient会窒息,因为它无法访问NetWorkManager,因此删除了你的IP地址.

如果你grep它,你会看到它指向一个NetWorkManager配置文件.

[root@host ~]# ps -ef | grep dhc
root      1865   792  0 Apr28 ?        00:00:00 /sbin/dhclient -d -sf 
 /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-eno1.pid -lf
 /var/lib/NetworkManager/dhclient-c96e56d3-a4c9-4a87-85ca-93dc0ca268f2-eno1.lease
 -cf /var/lib/NetworkManager/dhclient-eno1.conf eno1

所以你可以做的就是杀死dhclient,然后启动你的网络服务.

（编辑：李大同）

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