![每 15 秒从 amazonaws 发送一次 postfix SSL_accept](https://linux22.com/image/1546691/%E6%AF%8F%2015%20%E7%A7%92%E4%BB%8E%20amazonaws%20%E5%8F%91%E9%80%81%E4%B8%80%E6%AC%A1%20postfix%20SSL_accept.png)
在我的日志文件中,我收到了很多来自亚马逊 AWS 服务器的不成功连接。当我说很多时,我的意思实际上是很多:正如您所见,大约每 10-15 秒就会有一个不成功的连接请求。
Nov 21 15:53:40 myserver postfix/smtpd[1657]: SSL_accept error from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]: lost connection
Nov 21 15:53:40 myserver postfix/smtpd[1657]: lost connection after CONNECT from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:53:40 myserver postfix/smtpd[1657]: disconnect from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:53:51 myserver postfix/smtpd[1657]: connect from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:54:02 myserver postfix/smtpd[1657]: SSL_accept error from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]: lost connection
Nov 21 15:54:02 myserver postfix/smtpd[1657]: lost connection after CONNECT from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:54:02 myserver postfix/smtpd[1657]: disconnect from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:54:19 myserver postfix/smtpd[1657]: connect from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:54:29 myserver postfix/smtpd[1657]: SSL_accept error from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]: lost connection
Nov 21 15:54:29 myserver postfix/smtpd[1657]: lost connection after CONNECT from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
Nov 21 15:54:29 myserver postfix/smtpd[1657]: disconnect from ec2-18-216-14-119.us-east-2.compute.amazonaws.com[18.216.14.119]
现在我查看了其他一些关于此的报告,如果这只是偶然发生的,我不会在意。但同一台服务器每 10-15 秒发生一次就很多了。
所以我的问题是:现在我已经查看了其他一些关于此问题的报告,如果这只是偶尔发生,我不会介意。但每隔 10-15 秒从同一台服务器出现一次,这才是真正困扰我的事情。
有人有过类似的经历吗?知道如何预防吗?或者能给出解释吗?