CentOS 7 系统基础配置

系统版本:CentOS 7.2.1511 Minimal

采用最小化系统安装,许多组件默认是不安装的,通过手工安装一些常用工具包,让系统用起来更顺手。

1、修改机器名:

[root@centos7-minimal /]# hostnamectl set-hostname nginx

2、修改Hosts文件:

[root@nginx /]# sed -i '$a 192.168.1.139   nginx' /etc/hosts

3、关闭SELinux:

[root@nginx /]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config修改

4、修改网卡名称为"eth0":

4.1、更改网卡配置文件设置:

# mv /etc/sysconfig/network-scripts/ifcfg-ens6 /etc/sysconfig/network-scripts/ifcfg-eth0

# vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=ens6
DEVICE=eth0

4.2、更改启动文件设置:

# vim /etc/default/grub
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb net.ifnames=0 biosdevname=0 quiet"

# grub2-mkconfig -o /boot/grub2/grub.cfg

4.3、更改DNS设置:

# vim /etc/resolv.conf
nameserver 114.114.114.114

以上设置需要重启系统后方可生效:

[root@nginx /]# reboot

5、停止Firewalld防火墙:

[root@nginx /]# systemctl stop firewalld
[root@nginx /]# systemctl disable firewalld

6、安装iptables防火墙:

[root@nginx /]# yum -y install iptables iptables-services iptables-devel iptables-utils

7、启动iptables防火墙服务:

[root@nginx /]# systemctl start iptables.service
[root@nginx /]# systemctl enable iptables.service

8、查看iptables服务的状态:

[root@nginx /]# systemctl list-unit-files | grep "iptables"
iptables.service                            enabled

9.1、安装AliyunEPEL源:

# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
# yum clean all
# yum makecache

 9.2、安装原版EPEL源:

[root@nginx /]# yum -y install epel-release
[root@nginx /]# yum clean all
[root@nginx /]# yum makecache

10、安装常用软件:

[root@nginx /]# yum -y install vim tree xz unzip wegt git curl lrzsz telnet ntpdate lshw htop iftop iotop

11、安装编译源码所需的软件包:

[root@nginx /]# yum -y install gcc gcc-c++ autoconf automake

12、安装系统支撑所需的软件包:

# yum -y install openssl openssl-devel pcre pcre-devel zlib zlib-devel

至此系统维护所需要的基础软件包安装完毕。

[THE END]

原文地址:https://www.cnblogs.com/configure/p/9317364.html