- stunnel-users - stunnel.org

Using Stunnel
by sreejith 27 Sep '07

27 Sep '07

Dear friends, I have a requirement where in I have a web service that uses STUNNEL for encrypting and decrypting XML messages. Please help me out with how to proceed ? What needs to be done ? How the configuration file should be ? Thanks and best regards, Sreejith

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Stunnel Dies at 3500 connections...
by bear＠bears.org 27 Sep '07

27 Sep '07

Hey! I'm having a problem with a stunnel setup I have, and was wondering if anyone could help? I have two machines, one is acting as a simulator of clients. It uses the MINA library from apache to simulate a bunch of clients of the server. And the other acting as a server. Without stunnel in place, the client and server chat with no trouble... even with as many as 10k simulated clients. The protocol they communicate is just compressed binary data over standard TCP/IP. 20-50 bytes each direction per exchange. The behavior changes once stunnel is in place. The server behaves just fine, but the client acts very strange... in ways that make me think that stunnel is hitting some OS limit. (The files ulimit is set waaaaaay higher than the number of clients) On starting the client application, it begins making connections through the stunnel tunnel. The first 1500 or so are fine, but after that the load on the machine begins to climb. It gets to 5 or so around 2000. If I only do 2000 clients, the load then drops down into the 0.5 range, and the system runs okay. However, if I set the number of simulated clients higher... say 4000, the load continues to climb. When it gets to 3500 or so, the load goes above 500. The machine becomes unusable, and after a bit, stunnel dies with the message KILLED. I tried changing how quickly the clients connect, but that seemed to make no difference. Also, running two stunnels for the clients, and sending 2000 to each, for instance, causes it to still break down around 3500 or so. (Which is why I think it is an os limit) Any suggestions on this? Thanks! Peace, Gary version Stunnel 4.20 startup info 2007.09.24 12:09:50 LOG7[26537:3086939840]: RAND_status claims sufficient entropy for the PRNG 2007.09.24 12:09:50 LOG7[26537:3086939840]: PRNG seeded successfully 2007.09.24 12:09:50 LOG4[26537:3086939840]: Wrong permissions on hcs-key-and-cert-1024.pem 2007.09.24 12:09:50 LOG7[26537:3086939840]: Certificate: hcs-key-and-cert-1024.pem 2007.09.24 12:09:50 LOG7[26537:3086939840]: Certificate loaded 2007.09.24 12:09:50 LOG7[26537:3086939840]: Key file: hcs-key-and-cert-1024.pem 2007.09.24 12:09:50 LOG7[26537:3086939840]: Private key loaded 2007.09.24 12:09:50 LOG7[26537:3086939840]: SSL context initialized for service hcsuno 2007.09.24 12:09:50 LOG5[26537:3086939840]: stunnel 4.20 on i686-pc-linux-gnu with OpenSSL 0.9.8d 28 Sep 2006 2007.09.24 12:09:50 LOG5[26537:3086939840]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP 2007.09.24 12:09:50 LOG6[26537:3086939840]: file ulimit = 80000 (can be changed with 'ulimit -n') 2007.09.24 12:09:50 LOG6[26537:3086939840]: poll() used - no FD_SETSIZE limit for file descriptors 2007.09.24 12:09:50 LOG5[26537:3086939840]: 39062 clients allowed 2007.09.24 12:09:50 LOG7[26537:3086939840]: FD 3 in non-blocking mode 2007.09.24 12:09:50 LOG7[26537:3086939840]: FD 4 in non-blocking mode 2007.09.24 12:09:50 LOG7[26537:3086939840]: FD 5 in non-blocking mode 2007.09.24 12:09:50 LOG7[26537:3086939840]: SO_REUSEADDR option set on accept socket 2007.09.24 12:09:50 LOG7[26537:3086939840]: hcsuno bound to 0.0.0.0:4090 2007.09.24 12:09:50 LOG7[26537:3086939840]: Created pid file /tmp/stunnel1.pid uname -a Linux testbed-client1 2.6.9-42.ELsmp #1 SMP Sat Aug 12 09:39:11 CDT 2006 i686 i686 i386 GNU/Linux libc 2.3.4 stunnel -version stunnel 4.20 on i686-pc-linux-gnu with OpenSSL 0.9.8d 28 Sep 2006 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP Global options debug = 5 pid = /usr/local/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /usr/local/etc/stunnel/stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH key = /usr/local/etc/stunnel/stunnel.pem session = 300 seconds sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none gcc -v Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk --host=i386-redhat-linux Thread model: posix gcc version 3.4.6 20060404 (Red Hat 3.4.6-3) openssl version OpenSSL 0.9.7a Feb 19 2003 In the config, I have: client=yes debug=debug socket = l:TCP_NODELAY=1 pid = /tmp/stunnel1.pid foreground=yes [hcsuno] accept=4090 connect = testbed-hcs1:4094 cert = hcs-key-and-cert-1024.pem key = hcs-key-and-cert-1024.pem ********* ***** ** Gary Coulbourne *************************.* Bear Activist ****** *********** ** *******o ******* ********* **** ****`- Systems Administrator ******* ********* ***** http://www.bears.org ****** ********** **** bear(a)bears.org ## ***** ***** ## **** KB3INA ### ***** ### **** Animal Conservation/Preservation #,,, ***,,, ##,,, **,,,

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Setting up Stunnel with Gmail.
by Roger 24 Sep '07

24 Sep '07

Hi, A simple question from a technical learner! I use Gmail's POP3 & SMTP [SSL] servers for three Gmail accounts using Thunderbird as my email client. I would like to know EXACTLY how to set up stunnel so that my anti-virus program ( NOD32) can scan messages being sent and received by SSL on ports 995 & 465. I have Open SSL installed: downloaded but not yet installed stunnel set up. I have tried before to use stunnel, but failed as I keep getting message, as I recall, to the effect that localhost is not recognised. There are detailed explanations on the web for configuring with Spampal, but I don't have, or need Spampal! Thanks, Roger

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Re: [stunnel-users] Relaying OOB data [Was: A series of minor patchesfrom Debian]
by Richard's Hotmail 23 Sep '07

23 Sep '07

Hi Luis, Thanks for the detailed reply! > Ok, been reading. The short answer is no. Oh well :-( I guess that's what IPsec's for. > The longer answer is SSL doesn't support OOB data, so that's why > not. I did read your post saying you've read specs where it says it > does, but I could find no such. Take a look at RFC4346, section 6.2 > http://tools.ietf.org/html/rfc4346#page-14 > Take a look also at this thread: > http://www1.ietf.org/mail-archive/web/tls/current/msg01041.html Doesn't that thread suggest that OOB functionality is part of the SSLv3 standard? Is version three one of those "yet to be" standards that is still a long way off? Renamed TLS? (I found several RFCs dealing with this, anyone know which is the relevant one? I couldn't find "Urgent", "OOB" or "band" in 4346) My understanding (imagination maybe) is that the OOB character is to be packaged up as a single byte record surrounded with the SSL wrapper with a bit set that says it's the OOB character. I would now like stunnel just to dequeue it from SSL and then set the MSG_OOB flag and replay it to the application port. So it's sort of quasi-OOB to Stunnel and then true-OOB to the receiving port. > The argument (almost) in full: > - SSL doesn't define anything like OOB data in its streams, so > anything we did in stunnel would be an extension, and not > interoperable. And, anyways, would have to be done in openssl and not > in stunnel, I think. I must be confused about what's available (the only SSL code I've cut is simple Java client stuff) 'cos I'm sure I've seen patch-comments that say something like "make sure stunnel handles OOB data correctly" and isn't there some sort of OOB INLINE configuration parameter. Is there really northing available after the SSL_Read that identifies the data as an OOB character? Anyway, thanks again for the reply. Cheers Richard Maher PS. Does anyone out there know of a lower-level version of Stunnel (or something else) that spoofs the originating host-address when replaying the connection on the local server? It sure would be useful for client identification, and for reducing DoS attacks! ----- Original Message ----- From: "Luis Rodrigo Gallardo Cruz" <rodrigo(a)nul-unu.com> To: <stunnel-users(a)mirt.net> Sent: Tuesday, September 18, 2007 9:14 AM Subject: [stunnel-users] Relaying OOB data [Was: A series of minor patchesfrom Debian] > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)mirt.net > http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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A series of minor patches from Debian
by Luis Rodrigo Gallardo Cruz 23 Sep '07

23 Sep '07

Hello. I have recently become the maintainer for the Debian package of stunnel. During the adoption process I noticed a few things that I think would be good to fix in the code. I will be sending the patches to this list (unless a better place for this is pointed out) as separate mails, to allow them to have individual responses, but thought I'd better introduce myself first. Thank you all, -- Rodrigo Gallardo GPG-Fingerprint: 7C81 E60C 442E 8FBC D975 2F49 0199 8318 ADC9 BC28

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[patch] FSF postal address is outdated
by Luis Rodrigo Gallardo Cruz 14 Sep '07

14 Sep '07

The following long but rather trivial patch fixes up the FSF's postal address in the licencing statements for source files. This is a minor change, mostly for the benefit of tying up loose ends. ---------------------------------------------------------------------- diff --git a/src/client.c b/src/client.c index 6b3c5a4..a578b81 100644 --- a/src/client.c +++ b/src/client.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/common.h b/src/common.h index c666086..f96a537 100644 --- a/src/common.h +++ b/src/common.h @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef COMMON_H diff --git a/src/ctx.c b/src/ctx.c index 90dbdbc..dd4e01b 100644 --- a/src/ctx.c +++ b/src/ctx.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/env.c b/src/env.c index c195950..cbf105d 100644 --- a/src/env.c +++ b/src/env.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/file.c b/src/file.c index 5075b77..e00a82b 100644 --- a/src/file.c +++ b/src/file.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/gui.c b/src/gui.c index df1d6a8..d820b15 100644 --- a/src/gui.c +++ b/src/gui.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/log.c b/src/log.c index 0e3f927..45186b2 100644 --- a/src/log.c +++ b/src/log.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/network.c b/src/network.c index 98b1f5a..dfb76fa 100644 --- a/src/network.c +++ b/src/network.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/nogui.c b/src/nogui.c index deeca5b..a02cea7 100644 --- a/src/nogui.c +++ b/src/nogui.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/options.c b/src/options.c index bad281b..25a6e81 100644 --- a/src/options.c +++ b/src/options.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/protocol.c b/src/protocol.c index f579138..218450c 100644 --- a/src/protocol.c +++ b/src/protocol.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/prototypes.h b/src/prototypes.h index 004a576..50b2aec 100644 --- a/src/prototypes.h +++ b/src/prototypes.h @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef PROTOTYPES_H diff --git a/src/pty.c b/src/pty.c index d44a624..645492b 100644 --- a/src/pty.c +++ b/src/pty.c @@ -17,7 +17,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/resolver.c b/src/resolver.c index 6180113..84133cc 100644 --- a/src/resolver.c +++ b/src/resolver.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/ssl.c b/src/ssl.c index 84c79ee..7797747 100644 --- a/src/ssl.c +++ b/src/ssl.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/sthreads.c b/src/sthreads.c index de8388a..7588f61 100644 --- a/src/sthreads.c +++ b/src/sthreads.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/stunnel.c b/src/stunnel.c index bdb5dd3..3312cca 100644 --- a/src/stunnel.c +++ b/src/stunnel.c @@ -20,7 +20,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL diff --git a/src/verify.c b/src/verify.c index 72fcdb2..88b010b 100644 --- a/src/verify.c +++ b/src/verify.c @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * * In addition, as a special exception, Michal Trojnara gives * permission to link the code of this program with the OpenSSL ---------------------------------------------------------------------- -- Rodrigo Gallardo GPG-Fingerprint: 7C81 E60C 442E 8FBC D975 2F49 0199 8318 ADC9 BC28

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[patch] Move shared library into app specific dir
by Luis Rodrigo Gallardo Cruz 14 Sep '07

14 Sep '07

While upgrading the Debian package for stunnel, I noticed that it installs a shared library into /usr/lib/libstunnel.so This is recommended against by Debian policy, because misguided users might end up linking against it. The following (minor) patch moves the library into /usr/lib/stunnel/ which is a better location for it. ---------------------------------------------------------------------- Index: stunnel-4.20/src/Makefile.am =================================================================== --- stunnel-4.20.orig/src/Makefile.am 2007-07-24 20:36:58.000000000 -0500 +++ stunnel-4.20/src/Makefile.am 2007-07-24 20:39:04.000000000 -0500 @@ -17,7 +17,7 @@ # Unix shared library -lib_LTLIBRARIES = libstunnel.la +pkglib_LTLIBRARIES = libstunnel.la libstunnel_la_SOURCES = $(shared_sources) libstunnel_la_LDFLAGS = -avoid-version @@ -27,7 +27,7 @@ # Additional compiler flags -AM_CPPFLAGS = -DLIBDIR='"$(libdir)"' -DCONFDIR='"$(sysconfdir)/stunnel"' -DPIDFILE='"$(prefix)/var/run/stunnel/stunnel.pid"' +AM_CPPFLAGS = -DLIBDIR='"$(pkglibdir)"' -DCONFDIR='"$(sysconfdir)/stunnel"' -DPIDFILE='"$(prefix)/var/run/stunnel/stunnel.pid"' # Win32 executable ---------------------------------------------------------------------- -- Rodrigo Gallardo GPG-Fingerprint: 7C81 E60C 442E 8FBC D975 2F49 0199 8318 ADC9 BC28

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Re: [stunnel-users] stunnel-users Digest, Vol 38, Issue 2
by Saraka, Luc 12 Sep '07

12 Sep '07

-----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of stunnel-users-request(a)mirt.net Sent: Wednesday, September 12, 2007 6:00 AM To: stunnel-users(a)mirt.net Subject: stunnel-users Digest, Vol 38, Issue 2 Send stunnel-users mailing list submissions to stunnel-users(a)mirt.net To subscribe or unsubscribe via the World Wide Web, visit http://stunnel.mirt.net/mailman/listinfo/stunnel-users or, via email, send a message with subject or body 'help' to stunnel-users-request(a)mirt.net You can reach the person managing the list at stunnel-users-owner(a)mirt.net When replying, please edit your Subject line so it is more specific than "Re: Contents of stunnel-users digest..." Today's Topics: 1. certificates, openssl and stunnel on windows (David Schulberg) 2. [RE] certificates, openssl and stunnel on windows (algol sigfrid) ---------------------------------------------------------------------- Message: 1 Date: Wed, 12 Sep 2007 00:12:02 +1000 From: "David Schulberg" <davids(a)evertech.com.au> Subject: [stunnel-users] certificates, openssl and stunnel on windows To: <stunnel-users(a)mirt.net> Message-ID: <000001c7f47d$be12f030$1401a8c0@microsensexp> Content-Type: text/plain; charset="iso-8859-1" Hi All, Without wishing to sound na?ve I find this whole subject area to be extraordinarily riddled with cryptic explanations of how to configure stunnel to work with a key and certificate. Using openssl I have generated a file including RSA private key and certificate which stunnel running as a server happily digests. Now I want to create the cer file that Windows will happily digest on the client side. Short of ripping the certificate out of the stunnel.pem file that I created using the command openssl req -new -x509 -days 365 -nodes -config stunnel.cnf -out stunnel.pem -keyout stunnel.pem what are the steps to getting that holy grail with a 'cer' extension? Please educate David ------------------------------ Message: 2 Date: Tue, 11 Sep 2007 22:04:38 -0400 (EDT) From: "algol sigfrid" <m1a2(a)lycos.com> Subject: [stunnel-users] [RE] certificates, openssl and stunnel on windows To: <stunnel-users(a)mirt.net> Message-ID: <20070911220438.HM.0000000000001Lm(a)m1a2.bos-mail-wwl12.lycos.com> Content-Type: text/plain; charset="us-ascii" An HTML attachment was scrubbed... URL: http://stunnel.mirt.net/pipermail/stunnel-users/attachments/20070911/f7d 17618/attachment-0001.html ------------------------------ _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users End of stunnel-users Digest, Vol 38, Issue 2 ********************************************

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certificates, openssl and stunnel on windows
by David Schulberg 12 Sep '07

12 Sep '07

Hi All, Without wishing to sound naïve I find this whole subject area to be extraordinarily riddled with cryptic explanations of how to configure stunnel to work with a key and certificate. Using openssl I have generated a file including RSA private key and certificate which stunnel running as a server happily digests. Now I want to create the cer file that Windows will happily digest on the client side. Short of ripping the certificate out of the stunnel.pem file that I created using the command openssl req -new -x509 -days 365 -nodes -config stunnel.cnf -out stunnel.pem -keyout stunnel.pem what are the steps to getting that holy grail with a 'cer' extension? Please educate David

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[RE] certificates, openssl and stunnel on windows
by algol sigfrid 12 Sep '07

12 Sep '07

1 0