Centos 7 安装配置

时间：2022-11-07 23:15:07

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=

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.-.el7.x86_64

Found initrd image: /boot/initramfs-3.10.-.el7.x86_64.img

Found linux image: /boot/vmlinuz--rescue-1eb921a2f2804943984cf324014cbeab

Found initrd image: /boot/initramfs--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

: 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

: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu  qdisc pfifo_fast state UP qlen

    link/ether :0c::::b8 brd ff:ff:ff:ff:ff:ff

    inet 10.0.0.20/ brd 10.0.0.255 scope global eth0

       valid_lft forever preferred_lft forever

    inet6 fe80::20c:29ff:fe29:39b8/ 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) () bytes of data.

 bytes from 220.181.112.244: icmp_seq= ttl= time=1.50 ms

 bytes from 220.181.112.244: icmp_seq= ttl= time=1.67 ms

 bytes from 220.181.112.244: icmp_seq= ttl= 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/-persistent-ipoib.rules

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