Centos 7 安装配置

修改网卡

最小化安装没有安装vim，暂时使用vi

进入到network-scripts 目录

[root@node1 ~]# cd /etc/sysconfig/network-scripts/
[root@node1 network-scripts]# 

修改网卡配置文件名称

[root@node1 network-scripts]# ls
ifcfg-eno16777736    ifdown-ippp    ifdown-sit       ifup-bnep  ifup-plip    ifup-Team          network-functions-ipv6
ifcfg-lo     ifdown-ipv6    ifdown-Team      ifup-eth   ifup-plusb   ifup-TeamPort
ifdown       ifdown-isdn    ifdown-TeamPort  ifup-ib    ifup-post    ifup-tunnel
ifdown-bnep  ifdown-post    ifdown-tunnel    ifup-ippp  ifup-ppp     ifup-wireless
ifdown-eth   ifdown-ppp     ifup             ifup-ipv6  ifup-routes  init.ipv6-global
ifdown-ib    ifdown-routes  ifup-aliases     ifup-isdn  ifup-sit     network-functions

[root@node1 ~]# mv  ifcfg-eno16777736  ifcfg-eth0

在 /etc/sysconfig/grub 中的GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root 后加入 net.ifnames=0 biosdevname=0

[root@node1 ~]# vim /etc/sysconfig/grub 

GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root net.ifnames=0 biosdevname=0  rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

执行 grub2-mkconfig -o /boot/grub2/grub.cfg 生效

[root@node1 ~]# grub2-mkconfig  -o /boot/grub2/grub.cfg 
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-229.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-229.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-1eb921a2f2804943984cf324014cbeab
Found initrd image: /boot/initramfs-0-rescue-1eb921a2f2804943984cf324014cbeab.img
done

修改网卡配置文件

[root@node1 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
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=eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=10.0.0.21
NETMASK=255.255.255.0
GATEWAY=10.0.0.2
DNS1=192.168.1.1

重启网卡

[root@node1 ~]# systemctl restart network

查看IP

[root@node1 ~]# ip a
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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:29:39:b8 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.20/24 brd 10.0.0.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe29:39b8/64 scope link 
       valid_lft forever preferred_lft forever

查看网络是否连接

[root@node1 ~]# ping www.baidu.com
PING www.baidu.com (220.181.112.244) 56(84) bytes of data.
64 bytes from 220.181.112.244: icmp_seq=1 ttl=128 time=1.50 ms
64 bytes from 220.181.112.244: icmp_seq=2 ttl=128 time=1.67 ms
64 bytes from 220.181.112.244: icmp_seq=3 ttl=128 time=1.75 ms

更改主机名

[root@node1 ~]# hostname node1

[root@node1 ~]# vim /etc/hostname 
node1

防火墙

关闭防火墙

[root@node1 ~]# systemctl stop firewalld

开启防火墙

[root@node1 ~]# systemctl enable firewalld

关闭SElinux

[root@node1 ~]# vim /etc/selinux/config 
SELINUX=disabled

[root@node1 ~]# getenforce 
Disabled

更改登录提示信息

[root@node1 ~]# vim  /etc/motd

加入需要提示的信息

 删除登录时提示版本信息

[root@node1 ~]# vim  /etc/issue

安装插件

[root@node1 ~]# yum -y install vim  tree lrzsz

清除uuid

[root@node1 ~]# >/etc/udev/rules.d/70-persistent-ipoib.rules