培训虚拟机制作说明
一、更新虚拟机 license，要调整以下参数（涉及课件如需换图，一并替换）
echo $LANG
export LANG=en_US.UTF-8
chage -l flysync|grep 'Password expires'
chage -l root|grep 'Password expires'
chage -l kingbase|grep 'Password expires'
chage -M -1 flysync
chage -M -1 root
chage -M -1 kingbase
chage -l flysync|grep 'Password expires'
chage -l root|grep 'Password expires'
chage -l kingbase|grep 'Password expires'
grep TMOUT /etc/profile
grep PASS_MAX_DAYS /etc/login.defs
sed -i 's/^export TMOUT=30000/export TMOUT=0/' /etc/profile
sed -i 's/^PASS_MAX_DAYS.*/PASS_MAX_DAYS 99999/' /etc/login.defs
grep TMOUT /etc/profile
grep PASS_MAX_DAYS /etc/login.defs
二、新开发的课程，需把虚拟机变量设为英文后开发
#echo $LANG
#localectl set-locale LANG=en_US.UTF-8
#echo $LANG