CentOS 7.5 營運之路之網路設定

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使用dhclient 自動擷取IP地址

[[email protected] ~]# dhclient -r[[email protected] ~]# dhclientvi /etc/

[[email protected] ~]# ip add1: 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 forever2: 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

查看網路路由網關是否正確

[[email protected] ~]# route -nKernel IP routing tableDestination     Gateway         Genmask         Flags Metric Ref    Use Iface0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 ens33192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 ens33192.168.1.0     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 #原始為no 改為yes

重啟網路服務

 systemclt restart network.service

CentOS 7.5 營運之路之網路設定