更改ip

你的名字 2022-01-31 12:51 236阅读 0赞

## 查看ip ##

*  ifconfig

ifconfig
    eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
            inet 192.168.1.55  netmask 255.255.255.0  broadcast 192.168.1.255
            inet6 fe80::20c:29ff:fe51:ba33  prefixlen 64  scopeid 0x20<link>
            ether 00:0c:29:51:ba:33  txqueuelen 1000  (Ethernet)
            RX packets 3113674  bytes 4425023894 (4.1 GiB)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 954043  bytes 67717007 (64.5 MiB)
            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 0  (Local Loopback)
            RX packets 482945  bytes 1928463137 (1.7 GiB)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 482945  bytes 1928463137 (1.7 GiB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

*  ip addr

ip addr
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
        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: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
        link/ether 00:0c:29:51:ba:33 brd ff:ff:ff:ff:ff:ff
        inet 192.168.1.55/24 brd 192.168.1.255 scope global dynamic eno16777736
           valid_lft 1630sec preferred_lft 1630sec
        inet6 fe80::20c:29ff:fe51:ba33/64 scope link 
           valid_lft forever preferred_lft forever

## 临时修改IP ##

ifconfig eno16777736 192.168.1.56

## 永久更改IP ##

/etc/sysconfig/network-scripts

找到网卡：

TYPE="Ethernet"
    BOOTPROTO="dhcp"
    DEFROUTE="yes"
    PEERDNS="yes"
    PEERROUTES="yes"
    IPV4_FAILURE_FATAL="no"
    IPV6INIT="yes"
    IPV6_AUTOCONF="yes"
    IPV6_DEFROUTE="yes"
    IPV6_PEERDNS="yes"
    IPV6_PEERROUTES="yes"
    IPV6_FAILURE_FATAL="no"
    NAME="eno16777736"
    UUID="73fd9805-6fa3-46c0-9b40-139b6a4eb53b"
    DEVICE="eno16777736"
    ONBOOT="yes"

*  更改

BOOTPROTO="static"
    //新增
    IPADDR="192.168.1.57"
    GATEWAY="192.168.1.255"
    NETMASK="255.255.255.0"
    DNS1="114.114.114.114"

## 重启 ##

使用service network restart 命令，进行网卡重启
    =/etc/init.d/network restart
    下面是通用的重启
    root@mini ~]# systemctl restart network
    systemctl restart mysqld

shutdown -r  now

## 动态获取ip ##

（前提是你的路由器已经开启了DHCP）
    
    修改网卡配置文件 vi /etc/sysconfig/network-scripts/ifcfg-ens32    (最后一个为网卡名称)
    
    动态获取IP地址需要修改两处地方即可
    
    （1）bootproto=dhcp
    
    （2）onboot=yes

## 配置静态IP地址 ##

设置静态IP地址与动态iIP差不多，也是要修改网卡配置文件 vi /etc/sysconfig/network-scripts/ifcfg-ens32 (最后一个为网卡名称)

（1）bootproto=static

（2）onboot=yes

（3）在最后加上几行，IP地址、子网掩码、网关、dns服务器

IPADDR=192.168.1.160 ipaddr  
NETMASK=255.255.255.0 netmask  
GATEWAY=192.168.1.1 gateway  
DNS1=119.29.29.29  
DNS2=8.8.8.8  
（4）重启网络服务

\[root@mini ~\]\# systemctl restart network

## 使用工具 ##

*  然后使用nmtui命令调出修改窗口
 *  选择 Edit a connectio，即编辑一个连接
 *  选择右侧的Edit选项，编辑按钮，然后回车
 *  将连接方式选为Manul，手动修改，然后在Address行修改ip地址

manul 
    ['meinul]
    n. 手动；[脊椎] 兔狲；海底沙滩；（西藏，蒙古的）小野猫

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