迷你版的centOS 7 Minimal ISO Install

CentOS（Community Enterprise Operating System，中文意思是：社区企业操作系统）是Linux发行版之一，它是来自于Red Hat Enterprise Linux依照开放源代码规定释出的源代码所编译而成。由于出自同样的源代码，因此有些要求高度稳定性的服务器以CentOS替代商业版的Red Hat Enterprise Linux使用。两者的不同，在于CentOS并不包含封闭源代码软件。

今天为了在linux上学习python 就在虚拟机上安装了一个minimal CentOS，不过在安装成功后ifconfig命令不能使用，后来使用的ip addr命令获取的。然后连接到了xshell 上，那么问题来了，有了ip addr 命令 还用使用 ifconfig命令吗？

ip addr add和ifconfig的区别,可以参考Bomb250大牛的这篇博文:
从ip addr add和ifconfig的区别看linux网卡ip地址的结构

在安装centos 迷你版[Minimal ISO][1]之后的第一个问题：[无法使用ifconfig 命令（迷你centOS操作系统：在安装成功后）]centos系统的ip地址怎么获取？如何让系统的ifconfig命令得到识别？

解决方案：

1. 获取ip >>>[ip addr][2]

 
 

  
  
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[root@localhost ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    link/loopback 00:00 brd 00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::128 scope host 
       valid_lft forever preferred_lft forever
2: eno16777736: <BROADCAST,MULTICAST,102)">1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:41:79:da brd ff:ff:ff:ff:ff:ff
    inet 192.168.116.132/24 brd 116.255 scope global dynamic eno16777736
       valid_lft 1126sec preferred_lft 1126sec
    inet6 fe80::20c:29ff:fe41:79da/64 scope link 
       valid_lft forever preferred_lft forever

1. 可以进行[xshll][1] 连接了！！
   在系统的net-tools包里提供了ifconfig命令，使用yum安装

  
  
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 [root@localhost ~]# yum install net-tools
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.btte.net
 * extras: mirrors.yun-idc.com
 * updates: mirrors.com
Resolving Dependencies
--> Running transaction check
---> Package net-tools.x86_64 0:2.0-0.17.20131004git.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================
 Package           Arch           Version                            Repository    Size
========================================================================================
Installing:
 net-tools         x86_64         .el7           base         304 k

Transaction Summary
========================================================================================
Install  1 Package

Total download size: 304 k
Installed size: 917 k
Is this ok [y/d/N]: Y
Downloading packages:
warning: /var/cache/yum/x86_64/7/base/packages/net-tools-.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature,key ID f4a80eb5: NOKEY
Public key for net-tools-.rpm is not installed
net-tools-.rpm                    | 304 kB  03     
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
 Userid     : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
 Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
 Package    : centos-release-7-2.1511.centos.2.10.x86_64 (@anaconda)
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Is this ok [y/N]: Y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : net-tools-.x86_64                            1 
  Verifying  : net-tools-1 

Installed:
  net-tools.el7                                           

Complete!
[root@localhost ~]# 

安装完成后即可使用ifconfig命令

  
  
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 [root# ifconfig
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 116.132  netmask 255.255.255.0  broadcast 116.255
        inet6 fe80::20c:29ff:fe41:79da  prefixlen 64  scopeid 0x20<link>
        ether 00:04179:da  txqueuelen 1000  (Ethernet)
        RX packets 19591  bytes 22848873 (21.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6922  bytes 519272 (507.1 KiB)
        TX errors 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 1  netmask 255.0.0
        inet6 :1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 4  bytes 340 (340.0 B)
        RX errors 340.0 B)
        TX errors 0

[root# 

问题得到解决。

转自：http://blog.csdn.net/qq_29719097/article/details/51526389