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hook luaH_get导致的崩溃

 打算把luaH_get跳转到自己的luaH_get,结果发现有一个luaO_nilobject的东西会导致在原来的so和新的so里都存在,于是内部就错乱了,有很多判断luaO_nilobject的地方

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ubuntu 添加root登录

Login to your server as root. As the root user, edit the sshd_config file found in  /etc/ssh/sshd_config : vim /etc/ssh/sshd_config ( For details on working with Vim check out our article here !) Add the following line to the file, you can add it anywhere but it’s good practice to find the block about authentication and add it there. PermitRootLogin yes Save and exit the file. Restart the SSH server: systemctl restart sshd or service sshd restart