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更新时间:2023-06-29 16:12:45
Centos 6.5 Linux 系统中,有的同学发现自己的网卡在/etc/sysconfig/network-scripts/下面没有发现有ifcfg-eth0,针对这个问题我们进行讨论.
在/etc/sysconfig/network-scripts/xu下没有发现有ifcfg-eth0 的文件,检测如下:
-rw-r--r--. 1 root root 254 Oct 10 2013 ifcfg-lolrwxrwxrwx. 1 root root 20 Mar 20 2017 ifdown -> ../../../sbin/ifdown-rwxr-xr-x. 1 root root 627 Oct 10 2013 ifdown-bnep-rwxr-xr-x. 1 root root 5430 Oct 10 2013 ifdown-eth-rwxr-xr-x. 1 root root 781 Oct 10 2013 ifdown-ippp-rwxr-xr-x. 1 root root 4168 Oct 10 2013 ifdown-ipv6lrwxrwxrwx. 1 root root 11 Mar 20 2017 ifdown-isdn -> ifdown-ippp-rwxr-xr-x. 1 root root 1481 Oct 10 2013 ifdown-post-rwxr-xr-x. 1 root root 1064 Oct 10 2013 ifdown-ppp-rwxr-xr-x. 1 root root 835 Oct 10 2013 ifdown-routes-rwxr-xr-x. 1 root root 1465 Oct 10 2013 ifdown-sit-rwxr-xr-x. 1 root root 1434 Oct 10 2013 ifdown-tunnellrwxrwxrwx. 1 root root 18 Mar 20 2017 ifup -> ../../../sbin/ifup-rwxr-xr-x. 1 root root 12444 Oct 10 2013 ifup-aliases-rwxr-xr-x. 1 root root 859 Oct 10 2013 ifup-bnep-rwxr-xr-x. 1 root root 10556 Oct 10 2013 ifup-eth-rwxr-xr-x. 1 root root 11971 Oct 10 2013 ifup-ippp-rwxr-xr-x. 1 root root 10490 Oct 10 2013 ifup-ipv6lrwxrwxrwx. 1 root root 9 Mar 20 2017 ifup-isdn -> ifup-ippp-rwxr-xr-x. 1 root root 727 Oct 10 2013 ifup-plip-rwxr-xr-x. 1 root root 954 Oct 10 2013 ifup-plusb-rwxr-xr-x. 1 root root 2364 Oct 10 2013 ifup-post-rwxr-xr-x. 1 root root 4154 Oct 10 2013 ifup-ppp-rwxr-xr-x. 1 root root 1925 Oct 10 2013 ifup-routes-rwxr-xr-x. 1 root root 3289 Oct 10 2013 ifup-sit-rwxr-xr-x. 1 root root 2488 Oct 10 2013 ifup-tunnel-rwxr-xr-x. 1 root root 3770 Oct 10 2013 ifup-wireless-rwxr-xr-x. 1 root root 4623 Oct 10 2013 init.ipv6-global-rwxr-xr-x. 1 root root 1125 Oct 10 2013 net.hotplug-rw-r--r--. 1 root root 13386 Oct 10 2013 network-functions-rw-r--r--. 1 root root 29853 Oct 10 2013 network-functions-ipv6
网卡信息
[root@localhost network-scripts]# ifconfigeth0 Link encap:Ethernet HWaddr 00:0C:29:AD:6F:DC inet addr:192.168.1.115 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fead:6fdc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:194313 errors:0 dropped:0 overruns:0 frame:0 TX packets:2643 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:112599638 (107.3 MiB) TX bytes:157256 (153.5 KiB)lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1077 errors:0 dropped:0 overruns:0 frame:0 TX packets:1077 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:105953 (103.4 KiB) TX bytes:105953 (103.4 KiB)
网卡有地址,并且工作正常,那原因出在什么地方呢?
在centos 6.X 版本中,有两个服务来负责网络的管理,network和networkmanager 两个服务,其中这两个服务可以同时不存在,但是如果你运行的级别是在id=3(命令多用户模式)使用的服务为network, 如果是id=5(多用户图形化)使用的是networkmanager服务。
如果没有发现ifcfg-eth0 文件,很有可能是因为network这个服务没有开启,检测如下:
[root@localhost network-scripts]# chkconfig --list | grep -i netwNetworkManager 0:off 1:off 2:on 3:on 4:on 5:on 6:offnetwork 0:off 1:off 2:off 3:off 4:off 5:off 6:off[root@localhost network-scripts]#
如果出现了冲突,尽可能使用一个服务即可,不要同时使用,对其他的服务进行关闭,操作如下
chkconfig networkmanager off
然后重启系统,复制lo的文件,修改名字为eth0,然后进行修改内容如下:
EVICE="eth0"BOOTPROTO=“static” // 选择静态HWADDR="00:0C:29:E8:08:2B"IPV6INIT="yes"NM_CONTROLLED="yes"ONBOOT="yes"IPADDR=192.168.2.89NETMASK=255.255.255.0GATEWAY=192.168.2.1TYPE="Ethernet"UUID="e264bc1a-e8ca-4637-951d-ece828187789
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