Linux 设置静态IP

 

设置IP 、网关和 DNS 等:

vi/etc/sysconfig/network-scripts/ifcfg-eth0

# Advanced Micro Devices [AMD] 79c970[PCnet32 LANCE]

DEVICE=eth0

BOOTPROTO=static

DHCPCLASS=

HWADDR=00:0C:29:62:3A:38

ONBOOT=yes

IPADDR=192.168.1.151

NETMASK=255.255.255.0

GATEWAY=192.168.1.1

DNS1=211.162.78.1

DNS2=211.168.78.3

 

设置主机名:

vi /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=localhost.localdomain

 

设置的DNS（与ifcfg-eth0一致）:

vi /etc/resolv.conf

nameserver 211.162.78.1

nameserver 211.168.78.3

search localdomain

 

 

 

 

重器服务:

/etc/init.d/networkrestart

service network restart

 

 

 

 

 

界面显示：administrator——>network

 

 

 

#Centos 7 更改主机名方法
hostname 主机名称                                 #临时
hostnamectl set-hostname 主机名称 #永久

 

==========================================================================

虚拟机 NAT 静态IP设置：

 

 

 

#cd /etc/sysconfig/network-scripts/
BOOTPROTO=static #dhcp改为static
IPADDR=192.168.40.12
NETMASK=255.255.255.0
GATEWAY=192.168.40.2

#vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
GATEWAY=192.168.40.2

#/etc/resolv.conf
nameserver 192.168.40.2

#重启网络服务
systemctl restart network
service network restart
/etc/init.d/networkrestart

============================================================================

Ubuntu 静态IP设置上网

# 虚拟机设置桥接模式


# 查看
$ 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> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 00:0c:29:49:0d:e0 brd ff:ff:ff:ff:ff:ff
	
	
# 设置IP
$ sudo vi /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto ens33
iface ens33 inet static
address 10.10.10.31
netmask 255.255.255.0
gateway 10.10.10.1

# 重启服务
$ sudo /etc/init.d/networking restart
[ ok ] Restarting networking (via systemctl): networking.service.


# 现在可以 ping 通局域网内的其他服务器,但仍不能上网.


# 设置 DNS
$ sudo vi /etc/systemd/resolved.conf
[Resolve]
DNS=8.8.8.8 114.114.114.114

# 重启服务器


# 查看
$ 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 fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:49:0d:e0 brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.31/24 brd 10.10.10.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe49:de0/64 scope link 
       valid_lft forever preferred_lft forever