Linux配置静态IP

在一块SSD的CentOS配置静态IP

1. 配置静态IP

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

DEVICE="eth0"              设备名

NM_CONTROLLED="yes"        设备是否被NetworkManager管理

ONBOOT="no"                开机是否启动

HWADDR="00:0C:29:59:E2:D3" 硬件地址（MAC地址）

TYPE=Ethernet              类型

BOOTPROTO=none             启动协议{none|dhcp}

IPADDR=192.168.0.1         IP地址

PREFIX=24                  子网掩码

GATEWAY=192.168.0.254      默认网关

DNS1=202.106.0.20          主DNS

DOMAIN=202.106.46.151      辅助DNS

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

2. 重启网络服务

[root@localhost Desktop]# service network restart

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

问题就在于重启服务失败，错误提示如下：

Bringing up interface eth0:  Error: No suitable device found: no device found for connection 'System eth0'.

                                                           [FAILED]

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

提示没有“eth0”的设备，此时有可能是因为系统在安装时，网卡的命名没有eth0，此时用ifconfig查看一下当前的网卡设备，发现确实没有该网卡，解决办法是修改网卡名称。

3. 修改网卡名称

按以下步骤：

1.首先在vim /etc/sysconfig/grub中添加“net.ifnames=0 biosdevname=0”

GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 net.ifnames=0 biosdevname=0 rd.lvm.lv=centos/root crashkernel=auto  vconsole.keymap=us rhgb quiet"

2.然后执行grub2-mkconfig -o /boot/grub2/grub.cfg命令

3.最后重启机器，使用ifconfig查看网卡名称就变成了eth0,eth1......

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }