aliyun 启用ECS iptables

iptables -t nat -A POSTROUTING -s 0.0.0.0/24 -o eth0 -j MASQUERADE
service iptables save
echo 1 > /proc/sys/net/ipv4/ip_forward

2,修改aliyun-ECS的登陆欢迎信息

修改 bash登录 欢迎信息/etc/issue, /etc/motd