很久不搭理自己的网站了,几天突然发现启动程序总是被killed, 于是查看了系统日志 vi /var/log/messages 发现出现 kernel: Out of memory: Kill process 这意味着整个系统的内存已经不足,如果不杀死进程的话,就会导致系统的崩溃. Aug 15 13:05:48 izm5earhdmowvut444lz7hz kernel: Out of memory: Kill process 8292 (java) score 150 or sacrifi
阿里云服务器发送邮件:Connection could not be established with host smtp.qq.com [Connection timed out #110] 一.总结 一句话总结: 端口号port 改成 465,加密方式 encryption 改用 ssl 二.Connection could not be established with host smtp.163.com 转自或参考:Connection could not be established