Centos操作系统
一、网络配置
1、 网络查看:
[root@localhost ~]
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.5.129 netmask 255.255.255.0 broadcast 192.168.5.255
inet6 fe80::c3e7:caf9:e41a:3c79 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:56:19:70 txqueuelen 1000 (Ethernet)
RX packets 10530 bytes 15059160 (14.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4771 bytes 300971 (293.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 4 bytes 344 (344.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4 bytes 344 (344.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
2、 修改网络配置
[root@localhost ~]
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=957da0b9-6b4f-466a-93dd-eceac8a4b57a
DEVICE=ens33
ONBOOT=yes #开启自动启用网络连接
3、. 重启网络
[root@localhost ~]
Restarting network (via systemctl): [ 确定 ]
二、安装ssh服务
1、安装ssh
[root@localhost ~]
2、启动ssh
[root@localhost ~]
3、查看ssh
[root@localhost ~]
三、防火墙
1、firewalld的基本使用
启动: systemctl start firewalld
关闭: systemctl stop firewalld
查看状态: systemctl status firewalld
开机禁用 : systemctl disable firewalld
开机启用 : systemctl enable firewalld
2、配置firewalld-cmd
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3、开启一个端口
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