[stunnel-users] stunnel logging problem

Brian T btuch at usa.net
Mon Feb 28 18:23:29 CET 2005


I work for a company which has a custom embedded Linux platform, and have
been working with stunnel for some time but have never seen this problem.  I
have seen it with stunnel 4.04 and 4.07, which is compiled on a Redhat
7.2ish platform, but newer SSL libraries.  (below my sig is the stunnel

Basically I use a config file, but when debug= and output= is commented out,
stunnel seems to cause a problem which resets the embedded unit.  If I
uncomment them both and use output=/var/log/stunnel.log ( or /dev/null )
everything works fine.  Not sure where to look for the problem that is
causing this since I can't even get a core dump.  I looged in s_log() but
nothing stuck out as being wrong.

Thanks for any help you can lend,


 [root at JBMgateway-v63 /]# stunnel -version
stunnel 4.07 on i486-pc-linux-gnu PTHREAD+POLL+IPv4+LIBWRAP with OpenSSL
0.9.7d 17 Mar 2004

Global options
cert            = /etc/stunnel/stunnel.pem
ciphers         = ALL:!ADH:+RC4:@STRENGTH
debug           = 5
key             = /etc/stunnel/stunnel.pem
pid             = /var/run/stunnel.pid
RNDbytes        = 64
RNDfile         = /dev/urandom
RNDoverwrite    = yes
session         = 300 seconds
verify          = none

Service-level options
TIMEOUTbusy     = 300 seconds
TIMEOUTclose    = 60 seconds
TIMEOUTconnect  = 10 seconds
TIMEOUTidle     = 43200 seconds
[root at JBMgateway-v63 /]# uname -a
Linux JBMgateway-v63 2.4.20 #1729 Wed Jan 26 17:38:15 CST 2005 i486 unknown
[root at JBMgateway-v63 /]# ls -al /lib/libssl.so.*
-rwxr-xr-x    1 root     root       210452 Jan 26 18:47 /lib/libssl.so.0.9.7
lrwxrwxrwx    1 root     root           20 Jan 26 18:47 /lib/libssl.so.2 ->

[root at JBMgateway-v63 /]# cat /etc/stunnel/stunnel.conf
# Some debugging stuff
debug = 6
output = /var/log/stunnel.log
#output = /dev/null

foreground = yes

# Use it for client mode
client = yes

accept  = 443
connect = x.x.x.x:6660

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