日暮星辰

阿里云和腾讯云都提供了自己的安全保姆化方案，但是自从去年阿里云安骑士错误删除客户文件后，这类服务器软件一直处于褒贬不一的情况。中国的服务器安全确实缺口很大，但是也确实不能因为客户不作为就帮他打开家门加了个管家吧，虽然是免费的。

查询网上有提到的几种卸载方案，各位备用：

卸载云盾（安骑士）

curl -sSL http://update.aegis.aliyun.com/download/quartz_uninstall.sh | sudo bash
 
sudo rm -rf /usr/local/aegis
 
sudo rm /usr/sbin/aliyun-service
 
sudo rm /lib/systemd/system/aliyun.service

代码备份

bash
#!/bin/bash
 
#check linux Gentoo os 
var=`lsb_release -a | grep Gentoo`
if [ -z "${var}" ]; then 
    var=`cat /etc/issue | grep Gentoo`
fi
 
if [ -d "/etc/runlevels/default" -a -n "${var}" ]; then
    LINUX_RELEASE="GENTOO"
else
    LINUX_RELEASE="OTHER"
fi
 
stop_aegis(){
    killall -9 aegis_cli >/dev/null 2>&1
    killall -9 aegis_update >/dev/null 2>&1
    killall -9 aegis_cli >/dev/null 2>&1
    printf "%-40s %40s\n" "Stopping aegis" "[  OK  ]"
}
 
stop_quartz(){
    killall -9 aegis_quartz >/dev/null 2>&1
        printf "%-40s %40s\n" "Stopping quartz" "[  OK  ]"
}
 
remove_aegis(){
if [ -d /usr/local/aegis ];then
    rm -rf /usr/local/aegis/aegis_client
    rm -rf /usr/local/aegis/aegis_update
fi
}
 
remove_quartz(){
if [ -d /usr/local/aegis ];then
    rm -rf /usr/local/aegis/aegis_quartz
fi
}
 
 
uninstall_service() {
 
   if [ -f "/etc/init.d/aegis" ]; then
        /etc/init.d/aegis stop  >/dev/null 2>&1
        rm -f /etc/init.d/aegis 
   fi
 
    if [ $LINUX_RELEASE = "GENTOO" ]; then
        rc-update del aegis default 2>/dev/null
        if [ -f "/etc/runlevels/default/aegis" ]; then
            rm -f "/etc/runlevels/default/aegis" >/dev/null 2>&1;
        fi
    elif [ -f /etc/init.d/aegis ]; then
         /etc/init.d/aegis  uninstall
        for ((var=2; var<=5; var++)) do
            if [ -d "/etc/rc${var}.d/" ];then
                 rm -f "/etc/rc${var}.d/S80aegis"
            elif [ -d "/etc/rc.d/rc${var}.d" ];then
                rm -f "/etc/rc.d/rc${var}.d/S80aegis"
            fi
        done
    fi
 
}
 
stop_aegis
stop_quartz
uninstall_service
remove_aegis
printf "%-40s %40s\n" "Uninstalling aegis"  "[  OK  ]"
 
remove_quartz
printf "%-40s %40s\n" "Uninstalling aegis_quartz"  "[  OK  ]"

另有强删方案：

#!/bin/bash 
rm -rf /usr/local/aegis 
for A in $(ps aux | grep Ali | grep -v grep | awk '{print $2}') 
do 
  kill -9 $A; 
done

屏蔽云盾 IP

而后检查服务器记录时发现一堆  Alibaba.Security.Heimdall 的访问记录。网上查询发现是云盾。

根据官方介绍：

云盾会通过公网模拟黑客入侵攻击，进行安全扫描。所以服务器有安全防护时，需要对云盾扫描ip进行放行。

赶快屏蔽！

此处使用 UFW， iptables 用户请自己找一下添加方法。注意：如果已有接受 80 端口之类的规则，新增的拒绝 IP 规则在其后将不会生效。所以要在  /etc/ufw/before.rules 设置。

sudo nano 编辑此文件并找到  # End required lines，在其后添加：

# Block Ali Yun Dun  https://help.aliyun.com/knowledge_detail/37436.html
 
-A ufw-before-input -s 140.205.201.0/28 -j DROP
-A ufw-before-input -s 140.205.201.16/29 -j DROP
-A ufw-before-input -s 140.205.201.32/28 -j DROP
-A ufw-before-input -s 140.205.225.192/29 -j DROP
-A ufw-before-input -s 140.205.225.200/30 -j DROP
-A ufw-before-input -s 140.205.225.184/29 -j DROP
-A ufw-before-input -s 140.205.225.183/32 -j DROP
-A ufw-before-input -s 140.205.225.206/32 -j DROP
-A ufw-before-input -s 140.205.225.205/32 -j DROP
-A ufw-before-input -s 140.205.225.195/32 -j DROP
-A ufw-before-input -s 140.205.225.204/32 -j DROP

保存后运行  sudo ufw reload。完毕！

据说腾讯云云镜也有类似问题：转：

#!/bin/bash
#fuck tx process
rm -rf /usr/local/sa
rm -rf /usr/local/agenttools
rm -rf /usr/local/qcloud
process=(sap100 secu-tcs-agent sgagent64 barad_agent agent agentPlugInD pvdriver )
for i in ${process[@]}
do
  for A in $(ps aux | grep $i | grep -v grep | awk '{print $2}')
  do
    kill -9 $A
  done
done
 
chkconfig --level 35 postfix off
service postfix stop
echo ''>/var/spool/cron/root
echo '#!/bin/bash' >/etc/rc.local

文章转载：

https://www.cmsky.com/uninstall-aliyun-monitoring

https://blog.whe.me/post/uninstall-aliyun-monitoring.html

参考文献：

https://www.v2ex.com/t/217931

https://help.aliyun.com/knowledge_detail/40477.html

http://51.ruyo.net/p/5369.html

最近在国内云下载Mariadb，发现默认的源实在太慢。

经过查询发现可以使用国内源头。单独设置。推荐中科大源。

sudo vi /etc/yum.repos.d/MariaDB.repo

# MariaDB 10.1 CentOS repository list - created 2016-12-31 08:44 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = https://mirrors.ustc.edu.cn/mariadb/yum/10.1/centos73-amd64/
gpgkey = https://mirrors.ustc.edu.cn/mariadb/yum/RPM-GPG-KEY-MariaDB
gpgcheck = 1