- stunnel-users - stunnel.org

Client-side SNI
by Vincent Deschenes 01 Aug '16

01 Aug '16

Hi, Anyone know if there is anything special to do to get ServerName sent when using stunnel in client mode to be able to connect to SNI enabled server? Using latest version of stunnel and openssl. Will stunnel use the name specified in the "connect=" config ? Thanks, Regards, Vincent Deschenes Ing. PMP Director of Operations Stelvio Inc. (+1) 514-281-8570

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stunnel only sends some emails, not all, and only on second attempt
by Martin Jaquess 28 Jul '16

28 Jul '16

Hi I'm using the latest Stunnel (5.35), running under Windows Server 2000, to download emails from Outlook(Office365)/Outlook 2016 to another email client called OfficeTalk which only supports unencrypted POP3, so it can't access Outlook directly. First problem is that although most emails are downloaded without problem, some stubbornly and consistently refuse to be downloaded. This omission doesn't seem related to attachments, encoding, size, date, or anything else that I can see. Has anyone else experienced this or have any idea why it might be happening?? Second problem is that the first download doesn't produce anything, but if I run the request again, it works - the only difference in the log files is the IP addresses I'd greatly appreciate any advice on this - I've checked the threads but can't find anything similar. Many thanks in advance Martin Config file for all attempts is:debug=7 output = c:\program files\stunnel\stunnel.log [outlook-pop3] client = yes accept = 127.0.0.1:110 connect = outlook.office365.com:995 Logfile for successful download of one email is:12:49:50 LOG7[cron]: Cronthread initialized12:49:50 LOG7[main]: Runningon Windows 5.012:49:50 LOG7[main]: No limitdetected for the number of clients12:49:50 LOG5[main]: stunnel5.35 on x86-pc-msvc-1500 platform12:49:50 LOG5[main]:Compiled/running with OpenSSL 1.0.2h-fips 3 May 201612:49:50 LOG5[main]:Threading:WIN32 Sockets:SELECT,IPv4 TLS:ENGINE,FIPS,OCSP,PSK,SNI12:49:50 LOG7[main]: errno:(*_errno())12:49:50 LOG7[ui]: GUImessage loop initialized12:49:50 LOG7[main]: Runningon Windows 5.012:49:50 LOG5[main]: Reading configurationfrom file stunnel.conf12:49:50 LOG5[main]: UTF-8byte order mark detected12:49:50 LOG5[main]: FIPSmode disabled12:49:50 LOG7[main]:Compression disabled12:49:50 LOG7[main]: Snagged64 random bytes from C:/.rnd12:49:50 LOG7[main]: Wrote1024 new random bytes to C:/.rnd12:49:50 LOG7[main]: PRNGseeded successfully12:49:50 LOG6[main]:Initializing service [outlook-pop3]12:49:50 LOG7[main]: Nocertificate or private key specified12:49:50 LOG4[main]: Service[outlook-pop3] needs authentication to prevent MITM attacks12:49:50 LOG7[main]: SSLoptions: 0x03000004 (+0x03000000, -0x00000000)12:49:50 LOG5[main]:Configuration successful12:49:50 LOG7[main]:Listening file descriptor created (FD=344)12:49:50 LOG7[main]: Service[outlook-pop3] (FD=344) bound to 127.0.0.1:11012:49:53 LOG7[main]: Found 1ready file descriptor(s)12:49:53 LOG7[main]: FD=204ifds=r-x ofds=---12:49:53 LOG7[main]: Service[outlook-pop3] accepted (FD=356) from 127.0.0.1:380112:49:53 LOG7[main]: Creatinga new thread12:49:53 LOG7[main]: Newthread created12:49:53 LOG7[0]: Service[outlook-pop3] started12:49:53 LOG7[0]: OptionTCP_NODELAY set on local socket12:49:53 LOG5[0]: Service[outlook-pop3] accepted connection from 127.0.0.1:380112:49:53 LOG6[0]: failover:round-robin, starting at entry #112:49:53 LOG6[0]: s_connect:connecting 132.245.224.162:99512:49:53 LOG7[0]: s_connect:s_poll_wait 132.245.224.162:995: waiting 10 seconds12:49:53 LOG5[0]: s_connect:connected 132.245.224.162:99512:49:53 LOG5[0]: Service[outlook-pop3] connected remote server from 192.168.15.102:380212:49:53 LOG7[0]: OptionTCP_NODELAY set on remote socket12:49:53 LOG7[0]: Remotedescriptor (FD=380) initialized12:49:53 LOG6[0]: SNI:sending servername: outlook.office365.com12:49:53 LOG6[0]: Peercertificate not required12:49:53 LOG7[0]: SSL state(connect): before/connect initialization12:49:53 LOG7[0]: SSL state(connect): SSLv2/v3 write client hello A12:49:53 LOG7[0]: SSL state(connect): SSLv3 read server hello A12:49:53 LOG6[0]: Certificateverification disabled12:49:53 LOG6[0]: Certificateverification disabled12:49:53 LOG7[0]: SSL state(connect): SSLv3 read server certificate A12:49:53 LOG7[0]: SSL state(connect): SSLv3 read server key exchange A12:49:53 LOG6[0]: Clientcertificate not requested12:49:53 LOG7[0]: SSL state(connect): SSLv3 read server done A12:49:53 LOG7[0]: SSL state(connect): SSLv3 write client key exchange A12:49:53 LOG7[0]: SSL state(connect): SSLv3 write change cipher spec A12:49:53 LOG7[0]: SSL state(connect): SSLv3 write finished A12:49:53 LOG7[0]: SSL state(connect): SSLv3 flush data12:49:53 LOG7[0]: SSL state(connect): SSLv3 read finished A12:49:53 LOG7[0]: 1 client connect(s) requested12:49:53 LOG7[0]: 1 client connect(s) succeeded12:49:53 LOG7[0]: 0 client renegotiation(s) requested12:49:53 LOG7[0]: 0 session reuse(s)12:49:53 LOG6[0]: SSLconnected: new session negotiated12:49:53 LOG7[0]: Peercertificate was cached (4882 bytes)12:49:53 LOG6[0]: NegotiatedTLSv1.2 ciphersuite ECDHE-RSA-AES256-SHA384 (256-bit encryption)12:49:53 LOG7[0]:Compression: null, expansion: null12:49:54 LOG6[0]: Read socketclosed (readsocket)12:49:54 LOG7[0]: Sendingclose_notify alert12:49:54 LOG7[0]: SSL alert(write): warning: close notify12:49:54 LOG6[0]:SSL_shutdown successfully sent close_notify alert12:49:54 LOG7[main]: Found 1ready file descriptor(s)12:49:54 LOG7[main]: FD=204ifds=r-x ofds=---12:49:54 LOG7[main]: Service[outlook-pop3] accepted (FD=404) from 127.0.0.1:380312:49:54 LOG7[main]: Creatinga new thread12:49:54 LOG7[main]: Newthread created12:49:54 LOG7[1]: Service[outlook-pop3] started12:49:54 LOG7[1]: OptionTCP_NODELAY set on local socket12:49:54 LOG5[1]: Service[outlook-pop3] accepted connection from 127.0.0.1:380312:49:54 LOG6[1]: failover:round-robin, starting at entry #212:49:54 LOG6[1]: s_connect:connecting 132.245.212.98:99512:49:54 LOG7[1]: s_connect:s_poll_wait 132.245.212.98:995: waiting 10 seconds12:49:54 LOG6[0]: SSL socketclosed (SSL_read)12:49:54 LOG7[0]: Sent socketwrite shutdown12:49:54 LOG5[0]: Connectionclosed: 67 byte(s) sent to SSL, 11900 byte(s) sent to socket12:49:54 LOG7[0]: Remotedescriptor (FD=380) closed12:49:54 LOG7[0]: Local descriptor(FD=356) closed12:49:54 LOG7[0]: Service[outlook-pop3] finished (1 left)12:49:54 LOG5[1]: s_connect:connected 132.245.212.98:99512:49:54 LOG5[1]: Service[outlook-pop3] connected remote server from 192.168.15.102:380412:49:54 LOG7[1]: OptionTCP_NODELAY set on remote socket12:49:54 LOG7[1]: Remotedescriptor (FD=428) initialized12:49:54 LOG6[1]: SNI:sending servername: outlook.office365.com12:49:54 LOG6[1]: Peercertificate not required12:49:54 LOG7[1]: SSL state(connect): before/connect initialization12:49:54 LOG7[1]: SSL state(connect): SSLv3 write client hello A12:49:54 LOG7[1]: SSL state(connect): SSLv3 read server hello A12:49:54 LOG6[1]: Certificateverification disabled12:49:54 LOG6[1]: Certificateverification disabled12:49:54 LOG7[1]: SSL state(connect): SSLv3 read server certificate A12:49:54 LOG7[1]: SSL state(connect): SSLv3 read server key exchange A12:49:54 LOG6[1]: Clientcertificate not requested12:49:54 LOG7[1]: SSL state(connect): SSLv3 read server done A12:49:54 LOG7[1]: SSL state(connect): SSLv3 write client key exchange A12:49:54 LOG7[1]: SSL state(connect): SSLv3 write change cipher spec A12:49:54 LOG7[1]: SSL state(connect): SSLv3 write finished A12:49:54 LOG7[1]: SSL state(connect): SSLv3 flush data12:49:54 LOG7[1]: SSL state(connect): SSLv3 read finished A12:49:54 LOG7[1]: 2 client connect(s) requested12:49:54 LOG7[1]: 2 client connect(s) succeeded12:49:54 LOG7[1]: 0 client renegotiation(s) requested12:49:54 LOG7[1]: 0 session reuse(s)12:49:54 LOG6[1]: SSLconnected: new session negotiated12:49:54 LOG7[1]:Deallocating application specific data for addr index12:49:54 LOG6[1]: NegotiatedTLSv1.2 ciphersuite ECDHE-RSA-AES256-SHA384 (256-bit encryption)12:49:54 LOG7[1]:Compression: null, expansion: null12:49:56 LOG6[1]: Read socketclosed (readsocket)12:49:56 LOG7[1]: Sendingclose_notify alert12:49:56 LOG7[1]: SSL alert(write): warning: close notify12:49:56 LOG6[1]:SSL_shutdown successfully sent close_notify alert12:49:56 LOG6[1]: SSL socketclosed (SSL_read)12:49:56 LOG7[1]: Sent socketwrite shutdown12:49:56 LOG5[1]: Connectionclosed: 67 byte(s) sent to SSL, 11884 byte(s) sent to socket12:49:56 LOG7[1]: Remotedescriptor (FD=428) closed12:49:56 LOG7[1]: Localdescriptor (FD=404) closed12:49:56 LOG7[1]: Service[outlook-pop3] finished (0 left)

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HTTPS proxy tunnel. ssl handshake failure
by Kirill Franko 22 Jul '16

22 Jul '16

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AiX 7.1 TL3 SP6 - Stunnel Memory Usages grows after 24 hours
by Benjamin, Earl 19 Jul '16

19 Jul '16

Hello Everyone, I am running Stunnel-5.29 in AiX 7.1 TL3 SP6. I have added the DH param to the bottom of my CERT file. After approximately 24 hours or so the Stunnel CPU usage jumps to about 50% and after a few days to about 90%. Is there a configuration setting I've missed or compile option I need to consider? Thanks for your assistance in advance. Below is a cleaned up version of my config file. -Earl ------------------------------------------------- ; Verify peer certificate verify = 2 ; Certificate/key is needed in server mode and in client mode cert = /Server-certificate-all.pem key = /Server-certificate-all.pem CAfile = /all_root_ca.pem ; Protocol version (all, SSLv2, SSLv3, TLSv1) sslVersion = TLSv1 ; PID path pid = /etc/oraserver_stunnel.pid ; Turn off Nagle algorithm socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Debug level debug = 2 ; Use it for client mode client = no ; Ciphers ciphers = DHE-RSA-AES256-SHA ; Service-level configuration [ oraserver_DB ] accept = 15210 connect = server:1622 [ oraserver_ASM ] accept = 15211 connect = server:1621 This message and any attachments are solely for the use of intended recipients. The information contained herein may include trade secrets, protected health or personal information, privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you are not an intended recipient, you are hereby notified that you received this email in error, and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. Thank you for your cooperation

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Man in the middle attack possibility
by Abhinav Srivastava 19 Jul '16

19 Jul '16

Hi, I'm trying to use stunnel to provide encryption for my application to server communication. Server is already ssl aware. I configured my app to talk to localhost:xyz, and configured stunnel in client mode to relay traffic from localhost:<xyz> to actual service. The stunnel to service ssl protocol would use the server certificate, as server is already ssl aware. For any reason if stunnel is not running it would become possible for a non-elevated attacker/malware to spin up a tcp server listening to xyz, essentially taking advantage of my re-configuration of app to talk to localhost:xyz, and spoof the actual server. Even if my app to server protocol had some anti-spoofing mechanism say e.g., reverse CHAP, the malware can easily relay the challenge and response by using the actual service. In my case the actual app is iscsi initiator software that is not in my control and cant be modified, while the server is an iscsi tcp server which I am free to modify. Are there any guidance/best practices around preventing this attack with stunnel? Thanks Abhinav

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Client certificates now required by default?
by Wiest, Damian 07 Jul '16

07 Jul '16

After building stunnel 5.34 from source I noticed that my old config (5.22) was not working. [dwiest@716161-compute2 ~]$ sudo ./stunnel /etc/stunnel/stunnel.conf 2016.07.07 14:07:41 LOG5[ui]: stunnel 5.34 on x86_64-unknown-linux-gnu platform 2016.07.07 14:07:41 LOG5[ui]: Compiled/running with OpenSSL 1.0.1e-fips 11 Feb 2013 2016.07.07 14:07:41 LOG5[ui]: Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI Auth:LIBWRAP 2016.07.07 14:07:41 LOG5[ui]: Reading configuration from file /etc/stunnel/stunnel.conf 2016.07.07 14:07:41 LOG5[ui]: UTF-8 byte order mark not detected 2016.07.07 14:07:41 LOG5[ui]: FIPS mode disabled 2016.07.07 14:07:41 LOG5[ui]: Configuration successful 2016.07.07 14:07:41 LOG5[cron]: Updating DH parameters 2016.07.07 14:07:42 LOG5[0]: Service [rabbitmq] accepted connection from 192.168.237.81:49535 2016.07.07 14:07:42 LOG3[0]: SSL_accept: Peer suddenly disconnected 2016.07.07 14:07:42 LOG5[0]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket 2016.07.07 14:07:42 LOG5[1]: Service [rabbitmq] accepted connection from 192.168.237.81:49536 2016.07.07 14:07:42 LOG3[1]: SSL_accept: 140890C7: error:140890C7:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:peer did not return a certificate But I haven't enabled client certificate verification! [dwiest@716161-compute2 ~]$ sudo grep verify /etc/stunnel/stunnel.conf ; verify = 2 I have to explicitly set verify to 0 or 1 in order to connect without a client cert. Is this intentional? The documentation suggests that by default no verification should be taking place. -Damian -- Confidentiality Notice: This e-mail transmission may contain confidential or legally privileged information that is intended only for the individual or entity named in the e-mail address. If you have received this communication in error, please notify me by return e-mail, and destroy this communication and all copies thereof, including any attachments. Apervita ® is a registered trademark of Apervita Inc.

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stunnel and hosts.allow
by Yousef Alhashemi 05 Jul '16

05 Jul '16

Hi, This may be a little bit off-topic, but does anyone here use stunnel with pan? My connections to stunnel (in pan) are always refused by libwrap. I was looking for the right rule to add to /etc/hosts.allow but nothing seems to work aside from "ALL : ALL" (which is obviously not good) and "nntps: KNOWN". Is the latter reasonable? The hosts_access(5) manpage is confusing to say the least. It mentions that daemon (the first token on any line) is the name of the daemon running the process, which would be "stunnel" in my case, but using "stunnel : LOCAL" or even "stunnel : ALL" doesn't work. The rule that seems to work, as mentioned, is "nntps : KNOWN" ("nntps" being the group name in stunnel.conf). What's even more confusing to me is that "nntps : LOCAL" does not work either. Nor does "nntps : localhost 127.0.0.1", "nntps : localhost", "nntps : 127.0.0.1", or "nntps : 192.168.1.". Pan is running on the same machine as stunnel so all connections must be coming from localhost. Why do these rules not trigger? Either way, I'd like to know the "least permissive" hosts.allow rule that would allow me to connect to my news provider from pan, and/or whether "nntps : KNOWN" is a safe option. Thanks, Yousef

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Another OpenSSL 1.1.x patch - no ssl23.h any more
by Peter Pentchev 27 Jun '16

27 Jun '16

Hi, What do you think about the attached patch that fixes yet another OpenSSL 1.1.x compilation problem: the OpenSSL developers dropped the ssl23.h file altogether? Thanks for your work on stunnel! G'luck, Peter -- Peter Pentchev roam(a)ringlet.net roam(a)FreeBSD.org pp(a)storpool.com PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint 2EE7 A7A5 17FC 124C F115 C354 651E EFB0 2527 DF13

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Failed to redirect http to https
by Doris Hongmei 27 Jun '16

27 Jun '16

Hi Support, I setup stunnel to a web server with apache Configuration like below, --- /usr/local/etc/stunnel/stunnel.conf ---------- ; It is recommended to drop root privileges if stunnel is started by root setuid = nobody setgid = nobody ; TLS front-end to a web server [https] accept = 443 connect = 127.0.0.1:80 cert = /usr/local/etc/stunnel/stunnel.pem --- end of /usr/local/etc/stunnel/stunnel.conf ---------- After stunnel started, https://xxx/ is working, http://xxx/ is also still working , which doesn't redirect to https://xxx automatically. As my understanding, all the connections from http should redirect to https through stunnel, right? What steps did I miss? I need your help. Thanks. [Ericsson]<http://www.ericsson.com/> DORIS HONGMEI Software Configuration Mgmt Engineer BUSS SA OSS&BSS BL CPM DU SEP GZ RelGrp Ericsson 5&6F, No 44-46 Jianzhong Road 510630,Guangzhou,Tian He Software Park, China Mobile +8613922114721 Office +862085117729 doris.hongmei(a)ericsson.com www.ericsson.com [http://www.ericsson.com/current_campaign]<http://www.ericsson.com/current_campaign> Legal entity: Ericsson, registered office in CGC . This Communication is Confidential. We only send and receive email on the basis of the terms set out at www.ericsson.com/email_disclaimer<http://www.ericsson.com/email_disclaimer>

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Re: [stunnel-users] FW: Stunnel with IIS8 on server 2012 64 bit
by J. Michael Drew 24 Jun '16

24 Jun '16

Jose, I have discovered what I did wrong. I did the original stunnel installs from the command line and then installed the stunnel service from the command line as well. When I installed the stunnel service it would break the website. So I removed the service (I thought) then I copied a shortcut to stunnel.exe to the Win start up> program folder. Both sites started working on the servers as long as I was logged in through an RDP session. I uninstalled everything and reinstalled. Stunnel 5.32 installs a Windows GUI on Server 2012 as well so I went back and used the Windows server 2012 desktop applications to install the windows service and to stop the GUI application. Everything is now working as expected. It appears that I was running two instances of stunnel at the same time and I didn’t completely remove the original stunnel service. Thanks for all of your help, Cheers, Michael From: Josealf.rm [mailto:[email protected]] Sent: Thursday, June 23, 2016 2:37 PM To: J. Michael Drew Subject: Re: [stunnel-users] FW: Stunnel with IIS8 on server 2012 64 bit Hi Michael, Did my last suggestions help with your issue? Regards El 20 jun 2016, a las 18:00, J. Michael Drew <jmichaeldrew(a)hotmail.com> escribió: .Jose, I appreciate your patience. Internet - Clients : 443 -> : https://website.company.com/website/ ________Firewall___________ Web\Presentation Layer 2 Win 2012 Webservers (443) not currently connected to the production LB, application needs to work before connecting to LB. This configuration is first time on 64 bit OS… Win 2012. IIS 8 running Jakarta ISAPI Filter\Stunnel to redirect 9001 to 9009: _________Firewall\App Layer________ Port 9009 Connects to App server running Apache Application is working as expected as long as I am logged in to the IIS 8 server. I can telnet to the APP layer over 9009 and I can reach these websites externally as expected. Firewalls are good. Please let me know any other information you need. Thank you again, Michael From: Jose Alf. [mailto:[email protected]] Sent: Monday, June 20, 2016 4:32 PM To: J. Michael Drew Subject: Re: [stunnel-users] FW: Stunnel with IIS8 on server 2012 64 bit Michael, Please take this in constructive way. I am trying to help, but it looks like you need to do some reading and homework. Please check http://catb.org/~esr/faqs/smart-questions.html <http://catb.org/%7Eesr/faqs/smart-questions.html> I suggest you draw a picture of your environment and explain well what you're trying to achieve. Show your client, your backend server, your stunnel server, include the IPs and ports they're listening to and everything should be easier. Don't forget any firewalls thay may be in the way. Regards, Jose. _____ From: J. Michael Drew <jmichaeldrew(a)hotmail.com> To: 'Jose Alf.' <josealf(a)rocketmail.com> Sent: Monday, June 20, 2016 1:00 PM Subject: RE: [stunnel-users] FW: Stunnel with IIS8 on server 2012 64 bit Hi Jose, I made the changes you suggested, but I am still getting the same behavior. My external address is: https://website.company.com/website I am not adding any ports to the address. Thanks so much for your help! Michael From: Jose Alf. [mailto:[email protected]] Sent: Monday, June 20, 2016 12:10 PM To: J. Michael Drew; stunnel-users(a)stunnel.org Subject: Re: [stunnel-users] FW: Stunnel with IIS8 on server 2012 64 bit Michael, I guess what you want to do is to be able to connect to your internal Webserver via your Win2012 stunnel proxy using a URL like: https://yourwin2012dnsname:9001/ <https://yourwin2012dnsname:9009/> if that is correct, I suggest to adjust your configuration as follows: 1. Your stunnel mode must be server, not client. So adjust your service stanza as follows: [CLI9F529A0A] accept=9001 connect=10.xxx.xxx.xxx:9009 client=no 2. In your current configuration stunnel is listening only in the localhost ipv4 address (127.0.0.1). Therefore, you can only connect when you are logged on the server, you can't connect from a remote client. Hope this helps you clarify what's going on. Regards, Jose From: J. Michael Drew [mailto:[email protected]] Sent: Monday, June 20, 2016 9:54 AM To: 'Josealf.rm' Subject: RE: [stunnel-users] Stunnel with IIS8 on server 2012 64 bit Jose, Once logged in to the server I can open a browser on the server and connect through https://localhost/website and I can log in to the site externally as expected. Here are the log files from IIS and stunnel where stunnel is running as a service on the Windows 2012 server: When I am not logged in to the server it fails: #Software: Microsoft Internet Information Services 8.5 #Version: 1.0 #Date: 2016-06-20 00:30:21 #Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) cs(Referer) sc-status sc-substatus sc-win32-status time-taken 2016-06-20 00:30:21 159.xxx.xxx.xxx HEAD / - 443 - 190.xxx.xxx.xxx - - 200 0 0 1218 #Software: Microsoft Internet Information Services 8.5 #Version: 1.0 #Date: 2016-06-20 05:41:01 #Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) cs(Referer) sc-status sc-substatus sc-win32-status time-taken 2016-06-20 05:41:01 10.xxx.xxx.xxx OPTIONS /C$/windows/system32/NTDLL.DLL - 80 - 159.xxx.xxx.xxx Microsoft-WebDAV-MiniRedir/6.1.7601 - 200 0 0 500 2016-06-20 05:41:01 10.xxx.xxx.xxx PROPFIND /C$/windows/system32/NTDLL.DLL - 80 - 159.xxx.xxx.xxx Microsoft-WebDAV-MiniRedir/6.1.7601 - 404 0 2 46 2016-06-20 05:41:01 10.xxx.xxx.xxx PROPFIND /C$/windows/system32 - 80 - 159.xxx.xxx.xxx Microsoft-WebDAV-MiniRedir/6.1.7601 - 404 0 2 218 2016-06-20 05:41:16 10.xxx.xxx.xxx PROPFIND /patch-{682810b5-36dc-4e5d-81dd-6c02cd8f445b}-patchtoolsd.exe - 80 - 159.82.156.241 Microsoft-WebDAV-MiniRedir/6.1.7601 - 404 0 64 62 2016-06-20 05:41:27 10.xxx.xxx.xxx PROPFIND /N$cl64.exe - 80 - 159.xxx.xxx.xxx 1 Microsoft-WebDAV-MiniRedir/6.1.7601 - 404 0 2 62 2016-06-20 05:41:27 10.xxx.xxx.xxx PROPFIND /C$rome.dll - 80 - 159.xxx.xxx.xxx Microsoft-WebDAV-MiniRedir/6.1.7601 - 404 0 2 296 Stunell.conf: cert = extwebsvr_ver.pem ; Some performance tuning socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Peer Authentication verify = 2 CAfile = extwebsvr_root.pem ; Debug mode - useful for troubleshooting debug = 7 output = stunnel.log ; Client mode client = yes ; Setup tunnels to each EMS node [CLIxxxxxxxx)] accept=127.0.0.1:9001 connect=10.xxx.xxx.xxx:9009 Stunnel.log: 2016.06.20 09:17:39 LOG7[main]: No limit detected for the number of clients 2016.06.20 09:17:39 LOG5[main]: stunnel 5.27 on x86-pc-msvc-1500 platform 2016.06.20 09:17:39 LOG5[main]: Compiled/running with OpenSSL 1.0.2e-fips 3 Dec 2015 2016.06.20 09:17:39 LOG5[main]: Threading:WIN32 Sockets:SELECT,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI 2016.06.20 09:17:39 LOG7[main]: errno: (*_errno()) 2016.06.20 09:17:39 LOG5[main]: Reading configuration from file stunnel.conf 2016.06.20 09:17:39 LOG7[ui]: GUI message loop initialized 2016.06.20 09:17:39 LOG7[cron]: Cron thread initialized 2016.06.20 09:17:39 LOG5[main]: UTF-8 byte order mark detected 2016.06.20 09:17:39 LOG6[main]: Initializing service [CLI9F529A0A] 2016.06.20 09:17:39 LOG6[main]: Loading certificate from file: extwebsvr_ver.pem 2016.06.20 09:17:39 LOG6[main]: Certificate loaded from file: extwebsvr_ver.pem 2016.06.20 09:17:39 LOG6[main]: Loading private key from file: extwebsvr_ver.pem 2016.06.20 09:17:39 LOG6[main]: Private key loaded from file: extwebsvr_ver.pem 2016.06.20 09:17:39 LOG7[main]: Private key check succeeded 2016.06.20 09:17:39 LOG4[main]: Service [CLIxxxxxxxx] uses "verify = 2" without subject checks 2016.06.20 09:17:39 LOG4[main]: Use "checkHost" or "checkIP" to restrict trusted certificates 2016.06.20 09:17:39 LOG7[main]: SSL options: 0x03000004 (+0x03000000, -0x00000000) 2016.06.20 09:17:39 LOG5[main]: Configuration successful Thanks for your help, Michael From: Josealf.rm [mailto:[email protected]] Sent: Monday, June 20, 2016 8:01 AM To: J. Michael Drew Cc: stunnel-users(a)stunnel.org Subject: Re: [stunnel-users] Stunnel with IIS8 on server 2012 64 bit Michael, Is your stunnel running as a service? Please post sanitized logs and configuration for a better diagnostic ... Regards Jose El 20 jun 2016, a las 6:39, J. Michael Drew <jmichaeldrew(a)hotmail.com> escribió: Hi, I have a website on IIS8 and am using stunnel to forward requests over 9009 inside to my application server. When I log in to the IIS server and stay logged in everything works as expected. When I log off the IIS 8 web server my site is unreachable with a “service is unavailable”. Can someone help me? Sincere thanks, Michael _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users

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