阿里云主机开通时就自带了阿里云盾，这个免费版的阿里云盾还是比较鸡肋的，如果不喜欢，咱们可以通过以下的方法将其卸载。
卸载阿里云盾
wget http://update.aegis.aliyun.com/download/uninstall.sh \
&& chmod +x uninstall.sh \
&& ./uninstall.sh \
&& wget http://update.aegis.aliyun.com/download/quartz_uninstall.sh \
&& chmod +x quartz_uninstall.sh \
&& ./quartz_uninstall.sh
删除残留
pkill aliyun-service \
&& rm -fr /etc/init.d/agentwatch /usr/sbin/aliyun-service \
&& rm -rf /usr/local/aegis*
屏蔽云盾IP
iptables -I INPUT -s 140.205.201.0/28 -j DROP
iptables -I INPUT -s 140.205.201.16/29 -j DROP
iptables -I INPUT -s 140.205.201.32/28 -j DROP
iptables -I INPUT -s 140.205.225.192/29 -j DROP
iptables -I INPUT -s 140.205.225.200/30 -j DROP
iptables -I INPUT -s 140.205.225.184/29 -j DROP
iptables -I INPUT -s 140.205.225.183/32 -j DROP
iptables -I INPUT -s 140.205.225.206/32 -j DROP
iptables -I INPUT -s 140.205.225.205/32 -j DROP
iptables -I INPUT -s 140.205.225.195/32 -j DROP
iptables -I INPUT -s 140.205.225.204/32 -j DROP
卸载aliyun-service
rm -rf /usr/sbin/aliyun*
关闭cloudmonitor
chkconfig --del cloudmonitor