CentOS 7.5 运维之路之网络配置

原创

Cloudwaf 2018-11-02 02:45:53 ©著作权

文章标签 CentOS Linux 文章分类 运维

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使用dhclient 自动获取IP地址

[root@localhost ~]# dhclient -r
[root@localhost ~]# dhclient
vi /etc/

[root@localhost ~]# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    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: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:93:47:04 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.16/24 brd 192.168.1.255 scope global dynamic ens33
       valid_lft 84782sec preferred_lft 84782sec
    inet6 fe80::bbca:2655:139:aa19/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

查看网络路由网关是否正确

[root@localhost ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 ens33
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 ens33
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 ens33

vi /etc/sysconfig/network-scripts/ifcfg-ens33
		TYPE=Ethernet
		PROXY_METHOD=none
		BROWSER_ONLY=no
		BOOTPROTO=dhcp
		DEFROUTE=yes
		IPV4_FAILURE_FATAL=no
		IPV6INIT=yes
		IPV6_AUTOCONF=yes
		IPV6_DEFROUTE=yes
		IPV6_FAILURE_FATAL=no
		IPV6_ADDR_GEN_MODE=stable-privacy
		NAME=ens33
		UUID=4aa87787-3b5c-4985-9b43-24f247fc71c1
		DEVICE=ens33
		ONBOOT=yes #原始为no 改为yes

重启网络服务