環境:
Centos 7.5
VMware 16.0.0
問題描述:
CentOS7.5 新裝系統如何檢視網絡,配置網卡資訊
解決方案:
1.檢視ip資訊
ip a
ip a
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 00:50:56:25:19:1c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.227/24 brd 192.168.1.255 scope global noprefixroute ens33
valid_lft forever preferred_lft forever
inet6 fe80::36fd:c3d4:ea0a:5ab4/64 scope link noprefixroute
valid_lft forever preferred_lft forever
2.檢視編輯網卡資訊
vim /etc/sysconfig/network-scripts/ifcfg-ens33(網卡名)
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
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=bf5bb7c5-da27-44a9-b4be-7f6e4138abfd
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.1.227
PREFIX=24
GATEWAY=192.168.1.1
重新開機網絡服務
systemctl restart network
檢視ens33網卡資訊
ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.227 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::36fd:c3d4:ea0a:5ab4 prefixlen 64 scopeid 0x20<link>
ether 00:50:56:25:19:1c txqueuelen 1000 (Ethernet)
RX packets 29155875 bytes 2426699185 (2.2 GiB)
RX errors 0 dropped 108161 overruns 0 frame 0
TX packets 32605674 bytes 12952561612 (12.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
DNS設定
vim /etc/resolv.conf
nameserver 192.168.1.1
關閉NetworkManager服務
systemctl stop NetworkManager.service
停止開機自啟
systemctl disable NetworkManager.service
檢視網絡服務
systemctl status network.service
● network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: active (running) since 四 2022-03-17 23:58:09 CST; 7h left
Docs: man:systemd-sysv-generator(8)
Process: 975 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=0/SUCCESS)
CGroup: /system.slice/network.service
└─1304 /sbin/dhclient -1 -q -lf /var/lib/dhclient/dhclient-f5774ec4-da78-4594-859b-a17bb015e929-ens33.lease -pf /var/run/dhclient-ens33.pid ens33
3月 17 23:58:06 localhost.localdomain network[975]: 正在打開環回接口: [ 确定 ]
3月 17 23:58:07 localhost.localdomain network[975]: 正在打開接口 ens33:
3月 17 23:58:07 localhost.localdomain dhclient[1193]: DHCPREQUEST on ens33 to 255.255.255.255 port 67 (xid=0x2c76a023)
3月 17 23:58:07 localhost.localdomain dhclient[1193]: DHCPACK from 192.168.1.1 (xid=0x2c76a023)
3月 17 23:58:09 localhost.localdomain NET[1300]: /usr/sbin/dhclient-script : updated /etc/resolv.conf
3月 17 23:58:09 localhost.localdomain dhclient[1193]: bound to 192.168.1.227 -- renewal in 10429 seconds.
3月 17 23:58:09 localhost.localdomain network[975]: 正在确定 ens33 的 IP 資訊... 完成。
3月 17 23:58:09 localhost.localdomain NET[1350]: /etc/sysconfig/network-scripts/ifup-post : updated /etc/resolv.conf
3月 17 23:58:09 localhost.localdomain network[975]: [ 确定 ]
3月 17 23:58:09 localhost.localdomain systemd[1]: Started LSB: Bring up/down networking.
檢視網絡服務日志
cat /var/log/messages | grep network
ar 17 23:53:00 localhost systemd: Started LSB: Bring up/down networking.
Mar 17 23:54:11 localhost systemd: Stopping LSB: Bring up/down networking...
Mar 17 23:54:12 localhost NET[3314]: /etc/sysconfig/network-scripts/ifdown-post : updated /etc/resolv.conf
Mar 17 23:54:12 localhost network: 正在關閉接口 ens33: [ 确定 ]
Mar 17 23:54:12 localhost network: 正在關閉環回接口: [ 确定 ]
Mar 17 23:54:12 localhost systemd: Starting LSB: Bring up/down networking...
Mar 17 23:54:12 localhost NET[3516]: /etc/sysconfig/network-scripts/ifup-post : updated