CentOS 7.2更改网卡名称
背景
没啥背景，就是VMWare装的CentOS虚拟机的自带网卡名有点乱，想重新定义一下。
环境
1、VMWare虚拟机
6张网卡
2、系统
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.2. (Core)
并且是最小化安装。
网卡信息
网卡配置文件
配置内容
[root@localhost network-scripts]# cat ifcfg-eno16777736
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=1160a71e-e5b5--b742-c1bf0cba6f00
DEVICE=eno16777736
ONBOOT=no
这里启动下网卡，获得IP，好连接shell
[root@localhost network-scripts]# sed -i '/ONBOOT/s/no/yes/' ifcfg-eno*
[root@localhost network-scripts]# systemctl restart network
[root@localhost network-scripts]# ip addr
: lo: <LOOPBACK,UP,LOWER_UP> mtu qdisc noqueue state UNKNOWN
link/loopback ::::: brd :::::
inet 127.0.0.1/ scope host lo
valid_lft forever preferred_lft forever
inet6 ::/ scope host
valid_lft forever preferred_lft forever
: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:5c brd ff:ff:ff:ff:ff:ff
inet 192.168.140.128/ brd 192.168.140.255 scope global dynamic eno16777736
valid_lft 1799sec preferred_lft 1799sec
inet6 fe80::20c:29ff:fea3:b15c/ scope link
valid_lft forever preferred_lft forever
: eno33554960: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.129/ brd 192.168.140.255 scope global dynamic eno33554960
valid_lft 1800sec preferred_lft 1800sec
inet6 fe80::20c:29ff:fea3:b166/ scope link
valid_lft forever preferred_lft forever
: eno50332184: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.130/ brd 192.168.140.255 scope global dynamic eno50332184
valid_lft 1800sec preferred_lft 1800sec
inet6 fe80::20c:29ff:fea3:b170/ scope link
valid_lft forever preferred_lft forever
: eno67109408: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:7a brd ff:ff:ff:ff:ff:ff
inet 192.168.140.131/ brd 192.168.140.255 scope global dynamic eno67109408
valid_lft 1800sec preferred_lft 1800sec
inet6 fe80::20c:29ff:fea3:b17a/ scope link
valid_lft forever preferred_lft forever
: eno83886632: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.132/ brd 192.168.140.255 scope global dynamic eno83886632
valid_lft 1800sec preferred_lft 1800sec
inet6 fe80::20c:29ff:fea3:b184/ scope link
valid_lft forever preferred_lft forever
: eno100663856: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:8e brd ff:ff:ff:ff:ff:ff
inet 192.168.140.133/ brd 192.168.140.255 scope global dynamic eno100663856
valid_lft 1801sec preferred_lft 1801sec
inet6 fe80::20c:29ff:fea3:b18e/ scope link
valid_lft forever preferred_lft forever
[root@localhost network-scripts]#
默认使用DHCP，都是自动获取的IP
配置
CentOS7使用了“一致性网络命名方法”，这里举例，将网卡名截断为前5个字符，如eno16777736改为eno16。
1、更改网卡配置文件名
[root@localhost network-scripts]# ll
total
-rw-r--r--. root root Jan : ifcfg-eno10
-rw-r--r--. root root Jan : ifcfg-eno16
-rw-r--r--. root root Jan : ifcfg-eno33
-rw-r--r--. root root Jan : ifcfg-eno50
-rw-r--r--. root root Jan : ifcfg-eno67
-rw-r--r--. root root Jan : ifcfg-eno83
-rw-r--r--. root root Sep ifcfg-lo
lrwxrwxrwx. root root Jan : ifdown -> ../../../usr/sbin/ifdown
-rwxr-xr-x. root root Sep ifdown-bnep
[root@localhost network-scripts]#
并更改配置文件内容，举例
[root@localhost network-scripts]# cat ifcfg-eno16
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=eno16
UUID=803d2d05-493b-489b--1d3fc67878aa
DEVICE=eno16
ONBOOT=yes
[root@localhost network-scripts]#
2、关闭“一致性网络设备命名法”
更改前
[root@localhost ~]# cat /etc/sysconfig/grub
GRUB_TIMEOUT=
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
[root@localhost ~]#
添加net.ifnames=0 biosdevname=0
更改后
[root@localhost ~]# cat /etc/sysconfig/grub
GRUB_TIMEOUT=
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 biosdevname=0 rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
[root@localhost ~]#
更新GRUB、内核配置
[root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.-.el7.x86_64
Found initrd image: /boot/initramfs-3.10.-.el7.x86_64.img
Found linux image: /boot/vmlinuz--rescue-f034e6e19df748b7a27fad77b06e3179
Found initrd image: /boot/initramfs--rescue-f034e6e19df748b7a27fad77b06e3179.img
done
[root@localhost ~]#
3、添加设备规则配置文件
修改/etc/udev/rules.d/70-persistent-net.rules，没有该文件则新建文件
内容如下
[root@localhost ~]# cat /etc/udev/rules.d/-persistent-net.rules
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:5c", ATTR{type}=="", KERNEL=="eth*", NAME="eno16"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:8e", ATTR{type}=="", KERNEL=="eth*", NAME="eno10"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:66", ATTR{type}=="", KERNEL=="eth*", NAME="eno33"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:70", ATTR{type}=="", KERNEL=="eth*", NAME="eno50"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:7a", ATTR{type}=="", KERNEL=="eth*", NAME="eno67"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:a3:b1:84", ATTR{type}=="", KERNEL=="eth*", NAME="eno83"
[root@localhost ~]#
注意MAC地址与NAME相匹配（可以用ip addr查看）
4、重启
[root@localhost ~]# reboot
使用
[root@localhost ~]# ip addr
: lo: <LOOPBACK,UP,LOWER_UP> mtu qdisc noqueue state UNKNOWN
link/loopback ::::: brd :::::
inet 127.0.0.1/ scope host lo
valid_lft forever preferred_lft forever
inet6 ::/ scope host
valid_lft forever preferred_lft forever
: eno16: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:5c brd ff:ff:ff:ff:ff:ff
inet 192.168.140.128/ brd 192.168.140.255 scope global dynamic eno16
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b15c/ scope link
valid_lft forever preferred_lft forever
: eno33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.129/ brd 192.168.140.255 scope global dynamic eno33
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b166/ scope link
valid_lft forever preferred_lft forever
: eno50: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.130/ brd 192.168.140.255 scope global dynamic eno50
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b170/ scope link
valid_lft forever preferred_lft forever
: eno67: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:7a brd ff:ff:ff:ff:ff:ff
inet 192.168.140.131/ brd 192.168.140.255 scope global dynamic eno67
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b17a/ scope link
valid_lft forever preferred_lft forever
: eno83: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.132/ brd 192.168.140.255 scope global dynamic eno83
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b184/ scope link
valid_lft forever preferred_lft forever
: eno10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:8e brd ff:ff:ff:ff:ff:ff
inet 192.168.140.133/ brd 192.168.140.255 scope global dynamic eno10
valid_lft 1768sec preferred_lft 1768sec
inet6 fe80::20c:29ff:fea3:b18e/ scope link
valid_lft forever preferred_lft forever
[root@localhost ~]#
看见网卡名称都已经更改了
再来设置个静态ip，以eno83为例
[root@localhost network-scripts]# cat ifcfg-eno83
TYPE=Ethernet
BOOTPROTO=static
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=eno83
UUID=919f599a-c262--be7e-0646b1e98dee
DEVICE=eno83
IPADDR=192.168.140.140
PREFIX=24
ONBOOT=yes
[root@localhost network-scripts]#
重启网络
[root@localhost network-scripts]# systemctl restart network
[root@localhost network-scripts]#
[root@localhost network-scripts]#
[root@localhost network-scripts]# ip addr
: lo: <LOOPBACK,UP,LOWER_UP> mtu qdisc noqueue state UNKNOWN
link/loopback ::::: brd :::::
inet 127.0.0.1/ scope host lo
valid_lft forever preferred_lft forever
inet6 ::/ scope host
valid_lft forever preferred_lft forever
: eno16: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:5c brd ff:ff:ff:ff:ff:ff
inet 192.168.140.128/ brd 192.168.140.255 scope global dynamic eno16
valid_lft 1802sec preferred_lft 1802sec
inet6 fe80::20c:29ff:fea3:b15c/ scope link
valid_lft forever preferred_lft forever
: eno33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.129/ brd 192.168.140.255 scope global dynamic eno33
valid_lft 1802sec preferred_lft 1802sec
inet6 fe80::20c:29ff:fea3:b166/ scope link
valid_lft forever preferred_lft forever
: eno50: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.130/ brd 192.168.140.255 scope global dynamic eno50
valid_lft 1803sec preferred_lft 1803sec
inet6 fe80::20c:29ff:fea3:b170/ scope link
valid_lft forever preferred_lft forever
: eno67: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:7a brd ff:ff:ff:ff:ff:ff
inet 192.168.140.131/ brd 192.168.140.255 scope global dynamic eno67
valid_lft 1803sec preferred_lft 1803sec
inet6 fe80::20c:29ff:fea3:b17a/ scope link
valid_lft forever preferred_lft forever
: eno83: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1: brd ff:ff:ff:ff:ff:ff
inet 192.168.140.140/24 brd 192.168.140.255 scope global eno83
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fea3:b184/ scope link
valid_lft forever preferred_lft forever
: eno10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu qdisc pfifo_fast state UP qlen
link/ether :0c::a3:b1:8e brd ff:ff:ff:ff:ff:ff
inet 192.168.140.133/ brd 192.168.140.255 scope global dynamic eno10
valid_lft 1802sec preferred_lft 1802sec
inet6 fe80::20c:29ff:fea3:b18e/ scope link
valid_lft forever preferred_lft forever
[root@localhost network-scripts]#
改好了~
ps：
1、如果没有“配置-3添加设备规则配置文件“这步，其他不变，系统重启后将使用eth0、eth1、eth2、...这样的网卡名，此时系统会尝试启动配置文件（eno16等）描述的网卡，但网卡不存在，这些网卡将启动失败，并且开机后无法重启网络，提示failed to start lsb:bring up/down巴拉巴拉~
2、/etc/sysconfig/network-scripts这里目录里的网卡配置文件不要有多余的，每个ifcfg-xxxx对应且仅对应一个网卡，否则容易造成重启网络失败，提示failed to start lsb:bring up/down巴拉巴拉~
3、按这个顺序更改，可以避免更改网卡名称并重启之后，无法重启network的情况。
CentOS 7.2更改网卡名称的更多相关文章
- 一、centos7更改网卡名称eth0
异步赠书:10月Python畅销书升级 [线路图]人工智能到底学什么?! 程序员10月书讯 每周荐书(京东篇):618取胜之道.质量保障.技术解密) Centos7更改网卡名称Eth0 标签: Cen ...
- 更改网卡名称以及重启网卡提示Determining if ip address x.x.x.x is already in use for device eth0
安装系统完成后,在CentOS6.6下网卡名称变为em1,有些不太方便,还是改回eth0 修改grub配置文件,vi /boot/grub/grub.conf,增加如下红色字体 kernel /vml ...
- Centos7更改网卡名称Eth0
标签: Centos7更改网卡名称 2016-12-06 21:55 8737人阅读 评论(1) 收藏 举报 分类: linux(6) 作者同类文章X 版权声明:本文为博主原创文章,未经博主允许不 ...
- Centos7更改网卡名称Eth0并配置静态IP
1.首先查看一下centos7的网卡名称 eno33554984 2.更改为centos7之前版本的网卡名称 3.更改网卡文件的名称 4.禁用可预测命名规则. 通过编辑 /etc/default/gr ...
- rhel和centos7下更改网卡名称ens33为eth0
Linux使用小Tips 整理些Linux些常遇到的问题. 修改网卡ens33为eth0 在使用RHEL和Centos7,发现网卡名称变成了EnoX,挺不习惯.现更改回旧名称eth0看着顺眼. 备份/ ...
- CentOS 7.2修改网卡名称
#!/bin/bash #Centos7.2修改网卡名称ens33为eth0 #2017/05/19 if [ -f /etc/sysconfig/grub ];then cd cp /etc/sys ...
- Ubuntu下更改网卡名称
这个方法用于解决Ubuntu下更换网卡后,新网卡变更为eth1,并且源网卡的名称eth0,无法给新网卡用的情况.也可以用于为网卡更名.网 卡MAC地址改变之后,在Linux中找到网卡,新的网卡会被识别 ...
- Linux系统更改网卡名称
自己装了一台机器,有两张网卡,一个是主板上自带的,还有一个是后来自己添加的.装完系统后,系统默认主板上的网卡为eth1,而自己添加的网卡是eth0,感觉不爽,所以想办法使用udev使系统将主板上的网卡 ...
- Centos7 更改网卡名称
cd /etc/sysconfig/network-scripts/ 将要改名的网卡配置文件重命名,例如 mv ifcfg-eth1 ifcfg-eth0 vim ifcfg-eth0 修改devic ...
随机推荐
- [WPF自定义控件]使用WindowChrome自定义Window Style
1. 为什么要自定义Window 对稍微有点规模的桌面软件来说自定义的Window几乎是标配了,一来设计师总是克制不住自己想想软件更个性化,为了UI的和谐修改Window也是必要的:二来多一行的空间可 ...
- c#如何判断textbox中输入的数据是datatime型的
()你好,标准的方法是用一个验证控件:RangeValidator,把type设为DateTime,最大值设为'3000-1-1'或者别的,最小值最好设为'1900-1-1'. ()程序里面自己验证: ...
- 用python做分布式定时器
分布式任务系统 (Python) github地址 https://github.com/thomashuang/Lilac/blob/master/README.rst 这里将介绍Liac的设计架构 ...
- hdu4115：Eliminate the Conflict
n<=10000局剪刀石头布,对面第i局出Ai,m<=10000种对你出什么提出的要求:Xi Yi Wi 表示第Xi局和第Yi局,Wi=1:必须不同:Wi=0:必须相同,问是否存在你一局都 ...
- IE下IFrame引用跨域站点页面时，Session失效问题解决
问题场景:在一个应用(集团门户)的某个page中, 通过IFrame的方式嵌入另一个应用(集团实时监管系统)的某个页面. 当两个应用的domain 不一样时, 在被嵌入的页面中Session失效.(s ...
- python学习之- 内置函数
内置方法:1:abs():取绝对值2:all():当可迭代对象里所有均为真时结果为真. all([1,2,3])3:any():当可迭代对象里任意一个数据为真结果即为真.any([0,1,2])4:a ...
- POJ 1860【求解是否存在权值为正的环 屌丝做的第一道权值需要计算的题 想喊一声SPFA万岁】
题意: 有n种钱币,m个钱币兑换点,小明一开始有第n种钱币数量为w. 每个兑换点可以将两种不同的钱币相互兑换,但是兑换前要先收取一定的费用,然后按照比例兑换. 问小明是否可以经过一系列的兑换之后能够将 ...
- 权限对于目录和文件的具体含义 linux
权限对于具体文件的含义 文件上存储具体数据的地方,包括一般文件,数据库文件,二进制可执行文件等.因此权限对于文件的意义上这样都 r: 可读权限,表示可以读取该文件的内容 w:可写权限,表示可以编辑,新 ...
- 解决idea中启动tomcat出现控制台乱码问题
尝试了很多方法,最后终于解决了,现在提供给大家一个我认为最简单也最有效的方案. 1.修改配置文件 找到idea的安装目录,在bin文件夹下找到以下两个文件,用记事本或者其他软件打开: 然后两个文件中都 ...
- Oracle 用户表空间查看、修改大小、设置自增长等
分类: Oracle 首先登入某个用户,查看某个用户在哪个表空间下: select username,default_tablespace from user_users; 查看该用户下所有的表: ...