第二十二章 系统优化

系统优化

[root@qls ~]# ifconfig   eth1   172.16.1.100/24



[root@qls ~]# cp  /etc/sysconfig/network-scripts/ifcfg-eth0  /etc/sysconfig/network-scripts/ifcfg-eth1

[root@qls ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
TYPE=Ethernet
BOOTPROTO=none
NAME=eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=172.16.1.100
PREFIX=24

#更新源

[root@qls ~]# rm -rf /etc/yum.repos.d/*


[root@qls ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

[root@qls ~]# curl  -o   /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo


[root@qls ~]# ll  /etc/yum.repos.d/
total 8
-rw-r--r--. 1 root root 2523 Aug  5 20:09 CentOS-Base.repo
-rw-r--r--. 1 root root  664 Aug  5 20:09 epel.repo


#关闭firewalld及selinux


[root@qls ~]# systemctl  stop firewalld
[root@qls ~]# systemctl  disable  firewalld


[root@qls ~]# setenforce  0
[root@qls ~]# vi  /etc/sysconfig/selinux 
[root@qls ~]# grep  'SELINUX'  /etc/sysconfig/selinux
# SELINUX= can take one of these three values:
SELINUX=disabled



#关闭NetworkManager网络

[root@qls ~]# systemctl   stop NetworkManager
[root@qls ~]# systemctl   disable   NetworkManager


#同步时间

[root@qls ~]# crontab -l
* * * * *  /usr/bin/ntpdate  ntp.aliyun.com  &> /dev/null



#配置文件介绍
<domain> <type>  <item>  <value>

<domain>表示要限制的用户

<type>设定类型

<item>表示可选的资源

<value>表示要限制的值

#加大文件描述符
[root@qls ~]# echo '*               -       nofile          65535 ' >>/etc/security/limits.conf 

#检查结果
[root@qls ~]# tail -1 /etc/security/limits.conf

标签：repo,系统优化,qls,第二十二章,etc,sysconfig,root,eth1
来源： https://www.cnblogs.com/GAO321/p/16673232.html