CentOS System Initialization

To modify a user password:

passwd

Modify the Linux host name

Vi/etc/sysconfig/network

Vim/etc/host

Host name effective immediately

Hostname

SELinux and Firewalls

Redhat uses SELinux to enhance security and shuts down by:

1. Permanent effect

Modify the selinux= "" in the /etc/selinux/config file to disabled, and then restart.

2. Immediate effect

Setenforce 0

The way to turn off the firewall is:

1. Permanent entry into force

Open:chkconfig iptables on

Off:chkconfig iptables off

2. Immediate effect, failure after reboot

Open:service iptables start

Close:service iptables Stop

Configure nameserverto make sure you can connect to the network

Ping www.baidu.com

Ping 202.108.22.5

Vi/etc/resolv.conf

NameServer 8.8.8.8

NameServer 114.114.114.114

Configuring the Yum source for 163

Yum-y Install wget

cd/etc/yum.repos.d/

wget Http://mirrors.163.com/.help/CentOS6-Base-163.repo

Restart Linux

Reboot

Installing Scp,vim naming

Yum-y Install openssh-clients Vim

It is necessary to note that for other services under Linux , the above command can be used to perform the open and close operations.

Add:

A. Firewalls also need to shut down the IPv6 firewall:

Chkconfig Ip6tables off

And you can view the status with the following command:

Chkconfig--list iptables

The B.selinux status can be viewed through the following commands:

Sestatus

This article is from the "Snow Cane Six" blog, please be sure to keep this source http://879100963.blog.51cto.com/6686639/1703426

CentOS System Initialization