This is the mail archive of the
cygwin
mailing list for the Cygwin project.
Re: sshd buildup of CLOSE_WAIT leading to unable to function
- From: Joshua Hudson <joshudson at gmail dot com>
- To: cygwin <cygwin at cygwin dot com>
- Date: Fri, 11 Apr 2014 09:07:56 -0700
- Subject: Re: sshd buildup of CLOSE_WAIT leading to unable to function
- Authentication-results: sourceware.org; auth=none
The interesting detail is it would always stop at exactly 64 sockets
open; which is the maximum number for which select() doesn't have to
spawn a second thread.
Problem disappeared. Given the traces I got the reproduction would
involve somebody's deranged trojan SSH scanner.
64 to too low for Fail2Ban to prevent disaster so I didn't bother. The
fools aren't getting in anyway. I turned off password auth.
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple