Re: [Proftpd-user] [EXTERNAL] Re: mod_tls unexpec ted OpenSSL error, disconnecting
"TJ Saunders" <[email protected]>
| Newsgroups | gmane.network.proftpd.user |
|---|---|
| Message-ID | <[email protected]> |
> I enabled TraceLOg in Proftpd and then had my user test. He reported > that he was seeing several disconnects. Here is what I captured from > the messages and tls.log file: Thanks. The interesting part is: > 2020-03-25 14:30:48,196 mod_tls/2.9[48123]: panic: SSL_ERROR_SYSCALL, > line 10316: system error: Broken pipe > 2020-03-25 14:30:48,196 mod_tls/2.9[48123]: unexpected OpenSSL error, > disconnecting That "broken pipe" indicates the TCP connection with the client was broken unexpectedly; the necessary bytes for the next message in the TLS stream could not be written. When that happens, there is no recovery, so mod_tls has to disconnect the client, so that a new TLS stream is created. There are multiple reasons why a TCP connection can break like that; it's hard to say what the cause is for certain. Common culprits are firewalls and proxies, in between the client and the server. TJ _______________________________________________ ProFTPD Users List <[email protected]> Unsubscribe problems? http://www.proftpd.org/list-unsub.html