We have a problem where stunnel dies on our Win32 boxes when we attempt load tests:

stunnel 4.05 on x86-pc-mingw32-gnu WIN32 with OpenSSL 0.9.7d 17 Mar 2004

Global options cert = stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH debug = 5 key = stunnel.pem RNDbytes = 64 RNDoverwrite = yes service = stunnel session = 300 seconds taskbar = yes verify = none

Service-level options TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTidle = 43200 seconds

When we had one stunnel.cnf for all services it would crash almost imediately (less than a minute after starting the load). When we created separate processes for each target server it lasts longer, 5 to 10 minutes, but still dies. The frustrating part is we get no indications in the log files of what's going on. It dies in seemingly random spots. The last log entry is never the same and there's nothing in the cmd window that launched it to indicate what happened.

The conf is fairly simple:

#script test conf

cert = \stunnel\ohetestisg1.pem Cafile = \stunnel\css-ca-cert.pem CApath = \stunnel\certs output = \stunnel\stunnel-media.log

#verify = 3 client = yes debug = 7

[**mediaserver] accept = 127.0.0.3:80 connect = 10.162.130.26:444 TIMEOUTclose = 0

We're connecting to a Cisco Content Server Switch if that helps.

So I'm wondering where to go next. Any ideas on how to troubleshoot this?

Rich Whiffen

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