Linux环境基本配置
一、JAVA_HOME
有日子没配过linux环境了，居然已经开始生疏了。
vim ~/.profile
配置Java环境、配置时区
写道
#Java环境
export JAVA_HOME=/usr/bin/java
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=.:$JAVA_HOME:$PATH
export JAVA_HOME=/usr/bin/java
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=.:$JAVA_HOME:$PATH
然后加载文件：
. ~/.profile
二、TimeZone
还是修改 ~/.profile文件
vim ~/.profile
追加：
#时区
export TZ='Asia/Shanghai'
export TZ='Asia/Shanghai'
这回，时区对了，UTC变CST了
$ date
Fri Nov 14 15:23:39 CST 2014
Fri Nov 14 15:23:39 CST 2014
或者，手动选择时区：
dpkg-reconfigure tzdata
记得要重启
二、Static IP& DNS
配置静态IP：
sudo vim /etc/network/interfaces
默认如下：
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp
我想把它绑定在192.168.158.151，可以改成如下内容：
写道
iface eth0 inet static
address 192.168.158.151
netmask 255.255.255.0
gateway 192.168.158.2
broadcast 192.168.158.255
network 192.168.158.0
address 192.168.158.151
netmask 255.255.255.0
gateway 192.168.158.2
broadcast 192.168.158.255
network 192.168.158.0
这时候如果不能访问外网，说明DNS配置有问题。
如果这个文件是空的，类似这样：
cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
需要修改/etc/resolvconf/resolv.conf.d/base（这个文件默认是空的）
sudo vim /etc/resolvconf/resolv.conf.d/base
在里面插入：
nameserver 8.8.8.8
nameserver 8.8.4.4
nameserver 8.8.4.4
然后执行：
sudo resolvconf -u
这时候就可以访问外网了~~