centos和ubuntu

1.主机名

centos修改主机名涉及到/etc/hosts和/etc/sysconfig/network

ubuntu修改主机名是 etc hostname和etc hosts

2网络配置

centos下的配置文件是/etc/sysconfig/network-scripts/ifcfg-eth0 

ubuntu配置文件是/etc/network/interfaces 

centos重启网络服务：/etc/init.d/network restart

ubuntu重启网络服务：sudo /etc/init.d/networking restart

3.dns设置文件一致，都是/etc/resolv.conf

 

系统发行版本--内核版本、位数

RedHatcat /etc/issuecat /etc/redhat-releaselsb_release -a

CentOScat /etc/issuecat /etc/centos-releasecat /proc/version

Debiancat /etc/issuecat /etc/debian_versioncat /proc/version

Ubuntucat /etc/issuecat /etc/lsb_releasecat /proc/version

Oraclecat /etc/issuecat /etc/oracle-releaselsb_release -a

 

查看系统发行版本

命令	适用范围
lsb_release -a	所有Linux发行版
cat /etc/redhat-release	RedHat系Linux
cat /etc/issue	所有Linux发行版

 

查看系统内核位数

命令	适用范围
uname -a、uname -r	所有Linux发行版
cat /proc/version	所有Linux发行版