CentOS 6学习笔记（二）–优化CentOS以适应开发环境javajava阳旭的博客-

修改网络配置

vi /etc/sysconfig/network-scripts/ifcfg-eth0 

DEVICE=eth0 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=dhcp 

service network restart ip addr 

关闭防火墙

service iptables stop service ip6tables stop service iptables status service ip6tables status  chkconfig iptables off chkconfig ip6tables off vi /etc/selinux/config 

SELINUX=disabled 

配置 DNS 服务器

vi /etc/resolv.conf 

nameserver 114.114.114.114 

配置 repo 文件

新建文本文件，拷贝下列内容，重命名为 CentOS6-Base-163.repo，上传到 /usr/local 目录下。

[base] name=CentOS-$releasever - Base - 163.com baseurl=https://mirrors.163.com/centos/$releasever/os/$basearch/ #mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os gpgcheck=0 gpgkey=https://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6  #released updates  [updates] name=CentOS-$releasever - Updates - 163.com baseurl=https://mirrors.163.com/centos/$releasever/updates/$basearch/ #mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates gpgcheck=0 gpgkey=https://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6  #additional packages that may be useful [extras] name=CentOS-$releasever - Extras - 163.com baseurl=https://mirrors.163.com/centos/$releasever/extras/$basearch/ #mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras gpgcheck=0 gpgkey=https://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6  #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus - 163.com baseurl=https://mirrors.163.com/centos/$releasever/centosplus/$basearch/ #mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus gpgcheck=0 enabled=0 gpgkey=https://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6  #contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib - 163.com baseurl=https://mirrors.163.com/centos/$releasever/contrib/$basearch/ #mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib gpgcheck=0 enabled=0 gpgkey=https://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 

将 repo 文件拷贝到 /usr/local 目录下

cd /etc/yum.repos.d/ rm -rf * cp /usr/local/CentOS6-Base-163.repo . 

配置 yum

yum clean all yum makecache #测试yum工作是否正常，随便安装一个东西试试 yum install telnet 

配置系统时间

安装 ntpdate

yum install -y ntp ntpdate 0.pool.ntp.org #查看系统当前时间是否正确 date 

#添加NTP chkconfig --add ntpd #开机自启动NTP chkconfig ntpd on 

修改 NTP 配置文件

vi /etc/ntp.conf 

# Use public servers from the pool.ntp.org project. # Please consider joining the pool (https://www.pool.ntp.org/join.html). server 0.pool.ntp.org iburst server 1.pool.ntp.org iburst server 2.pool.ntp.org iburst server 3.pool.ntp.org iburst 

安装 JDK 1.7

将 jdk-7u65-linux-i586.rpm 上传到 /usr/local 目录下。

cd /usr/local rpm -ivh jdk-7u65-linux-i586.rpm 

配置 JDK 相关的环境变量

vi ~/.bashrc 

export JAVA_HOME=/usr/java/latest export PATH=$PATH:$JAVA_HOME/bin 

source ~/.bashrc #测试java是否安装成功 java -version 

安装 gcc-c++

yum install gcc-c++ 

删除 70-persistent-net.rules

为了防止某个设备名称和mac地址不对应的现象，将 70-persistent-net.rules 这个文件删除

rm -f /etc/udev/rules.d/70-persistent-net.rules 

关机或重启

#立即关机 shutdown -h now #重启 reboot #强制重启 reboot –f