stunnel-users

8 participants
3311 discussions

Need help to confi Stunnel
by Larry Alba 08 Jan '19

08 Jan '19

I need help to configure Stunnel to work again for my Secure Email being sent by my NoteSmith software thru Aplus.net mail server. I am: larryalba(a)yahoo.com Sent from Yahoo Mail on Android

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ssl3_get_record:wrong version number
by Moellers 07 Jan '19

07 Jan '19

Hello, what I´m trying to accomplish is to build a secure RDP Connection between my Laptop and a Server, which are in the same Network but as RDP in itself is not secure enough I need the stunnel encryption. As of now I can establish a connection but as soon as I try to start an RDP Connection I get the following message: SSL_accept: 1408F10B: error:1408F10B:SSL routines:ssl3_get_record:wrong version number I tried serveral things for example: sslVersion = all options = NO_SSLv2 Sadly this doesn´t work either as I get a different error after that. This is pretty much the config for both Server and Client. ; R.B. Konfiguration HMailServer InvNr. 4522 RDP Zugriff mit STunnel-Verschlüsselung [RDP-SSL] CAfile = certs.pem accept = 9000 connect = 3389 ;verify = 4 verifyPeer = yes verifyChain = no sslVersion = all cert = stunnel.pem I exchanged the certificates between the Server and the Laptop but can´t establish a connection to get a RDP Session going. Hope someone can help me. Kind regards. F.Moellers Mit freundlichen Grüßen IT-Abteilung Jugendhilfe Köln e.V. Christianstr. 82 50825 Köln Tel. (0221) 54600-177 <mailto:[email protected]> it(a)jugendhilfe-koeln.de <http://www.jugendhilfe-koeln.de> www.jugendhilfe-koeln.de Geschäftsführerin: Almut Gross - Amtsgericht Köln VR 7348 Vorstandsvorsitzende: Dr. Agnes Klein

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Re: [stunnel-users] older browsers, stunnel and privoxy
by Eric Eberhard 04 Jan '19

04 Jan '19

Observation: you accept on port 80 ... the log says 4121 ... any chance you have some sort of port forwarding/NAT/firewall/router issue? Second -- if you are on Unix why not just use inetd? Easy, reliable, simple, always works (if inetd goes down you have no Unix). And you have nothing to manage -- just logs to look at. Happy New Year Eric -----Original Message----- From: stunnel-users [mailto:[email protected]] On Behalf Of kovacs janos Sent: Saturday, December 29, 2018 7:37 PM To: Javier <jamilist.stn(a)gmx.es> Cc: stunnel-users(a)stunnel.org Subject: Re: [stunnel-users] older browsers, stunnel and privoxy it still doesnt seem to work. i tried it with deviantart.com again. configuration: client = yes accept = 127.0.0.1:80 connect = 52.85.220.247:443 verifyChain = yes CAfile = ca-certs.pem checkHost = *.deviantart.com the name after checkHost is the "Common Name" displayed when viewing the site's certificate in a browser(lock icon, view certificate). i also saved the certificate in case i would need to try the "certificate pinning" method. the connect IP is what 'get-site-ip.com' says the IP of the website is. these are the logs: Service [fbsd-www] accepted connection from 127.0.0.1:4121 s_connect: connected 52.85.220.247:443 Service [fbsd-www] connected remote server from 192.168.0.3:4122 SSL_connect: 14077410: error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure Connection reset: 0 byte(s) sent to TLS, 0 byte(s) sent to socket i know i pestered everyone long enough, but i still havent been able to connect to anything. without any verification its the same On 12/21/18, Javier <jamilist.stn(a)gmx.es> wrote: > On Fri, 21 Dec 2018 13:58:35 +0200 > Peter Pentchev <roam(a)ringlet.net> wrote: > >> Hm, there's no reason why stunnel would not work like that for a >> predetermined set of hosts with known addresses. > > Hi, > > I'm just trying to avoid encouraging him on keep with his first idea > of browsing through Stunnel, with, or without privoxy. > > Of course one site, one connection would work, if we forget about > secondary issues and..., nevermind... > > I give up :D > > Regards. > > > _______________________________________________ > 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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stunnel not working properly on Redhat linux (fresh install)
by Klaus Kloeser 04 Jan '19

04 Jan '19

Hi, I have set up Stunnel as SSL Wrapper for googlemail on a Redhat Enterprise Linux 7.2 installation. The stunnel.conf: output = /var/log/stunnel.log cert = /etc/pki/tls/certs/2019stunnel.pem client = yes sslVersion = TLSv1 ;fips=no [ssmtp] accept = 1925 connect=smtp.googlemail.com:587 lets me start stunned well. I have created the file 2019stunnel.pem following the Instructions on Redhat: make 2019stunnel.pem in the correct directory (certs) now I tried to telnet localhost 1925; I get a “connected”, but nothing more. telnet smtp.googlemail 587 runs very well, I get connected, so I assume it is not a firewall issue. I checked the options sslVersion = TLSv1 and sslVersion = all alternatively, which led to different errors in stunnel.log: Service [ssmtp] accepted connection from 127.0.0.1:49723 2019.01.04 14:45:01 LOG3[4500:140416608397056]: connect_blocking: connect 2a00:1450:400c:c0c::10:587: Network is unreachable (101) 2019.01.04 14:45:01 LOG5[4500:140416608397056]: connect_blocking: connected 74.125.140.16:587 2019.01.04 14:45:01 LOG5[4500:140416608397056]: Service [ssmtp] connected remote server from 192.168.178.57:44246 2019.01.04 14:45:01 LOG3[4500:140416608397056]: SSL_connect: 140770FC: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol 2019.01.04 14:45:01 LOG5[4500:140416608397056]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket 2019.01.04 14:54:24 LOG5[4500:140416608249920]: Terminated or Service [ssmtp] accepted connection from 192.168.178.57:57612 2019.01.04 14:54:36 LOG5[7437:139957105055488]: connect_blocking: connected 173.194.76.16:587 2019.01.04 14:54:36 LOG5[7437:139957105055488]: Service [ssmtp] connected remote server from 192.168.178.57:52192 2019.01.04 14:54:36 LOG3[7437:139957105055488]: SSL_connect: 1408F10B: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number 2019.01.04 14:54:36 LOG5[7437:139957105055488]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket Now Open SSL: Openssl output: openssl s_client -connect localhost:1925 CONNECTED(00000003) write:errno=104 no peer certificate available No client certificate CA names sent SSL handshake has read 0 bytes and written 289 bytes New, (NONE), Cipher is (NONE) Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE No ALPN negotiated SSL-Session: Protocol : TLSv1.2 Cipher : 0000 Session-ID: Session-ID-ctx: Master-Key: Key-Arg : None Krb5 Principal: None PSK identity: None PSK identity hint: None Start Time: 1546610402 Timeout : 300 (sec) Verify return code: 0 (ok) What do I miss here; what is running wrong ? Mit freundlichen Grüßen/ best regards Klaus Klöser

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(no subject)
by Guido 30 Dec '18

30 Dec '18

Gesendet von Mail für Windows 10

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(no subject)
by Guido 30 Dec '18

30 Dec '18

Gesendet von Mail für Windows 10

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sslv3 alert bad certificate
by marko 26 Dec '18

26 Dec '18

Hello all, I'm using xmas for something useful - i.e. to configure a new server. After an install of stunnel 5.50 and generating the .pem and .key files with: openssl req -new -x509 -nodes -out /usr/local/etc/stunnel/nw_stunnel.pem -keyout /usr/local/etc/stunnel/nw_stunnel.key -days 1825 using this settings in the stunnel.conf: cert = /usr/local/etc/stunnel/nw_stunnel.pem key = /usr/local/etc/stunnel/nw_stunnel.key options = -NO_SSLv3 sslVersion = all I got LOG5[0]: Service [imaps] accepted connection from 192.168.1.3:64233 Dec LOG3[0]: SSL_accept: 14094412: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate LOG5[0]: Connection reset: 0 byte(s) sent to TLS, 0 byte(s) sent to socket Just wondering: this is a self issued CA-Cert. Does the bad certificate error refer to the unsafe ssl3-standard or is it a placeholder for the certificate being self-generated as well? I'm currentlty on [.] stunnel 5.50 on amd64-portbld-freebsd12.0 platform [.] Compiled/running with OpenSSL 1.1.1a-freebsd 20 Nov 2018 [.] Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,OCSP,PSK,SNI This configuration works with the same install procedure: [.] stunnel 5.49 on i386-portbld-freebsd11.2 platform [.] Compiled/running with OpenSSL 1.0.2o-freebsd 27 Mar 2018 [.] Threading:PTHREAD Sockets:POLL,IPv4 TLS:ENGINE,OCSP,PSK,SNI Any insights into this matter are highly welcome. Cheers, and merry youknowwhat, Marko

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win32 support
by Vida Bence 20 Dec '18

20 Dec '18

Hi Everyone! Is there any option to use s-tunnel on win32? I can see only win64 download links on the front page. Sorry if this is a blatant question, I am a totally new user. Thank you for the replies! All the best Bence

3 2

stunnel log size
by Joe Phillips 13 Dec '18

13 Dec '18

My stunnel log continues to grow. Will it truncate automatically? How do I restrict its size?

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How to configure STunnel to use cert. from certificate store
by Chicoine, Jonathan 12 Dec '18

12 Dec '18

How in the word you specify the certificate to use from the windows certificate store (for example, on Windows 10 or Windows Server 2012)? The documentation obviously says to use the "cert" config option to specify a file (and the "key" config option for the private key) ... but to use a cert from the windows certificate store, shouldn't it be the certs "common name" field or thumbprint ... or something. Am new to this whole thing and have been googling for the answer for days. Any help would be greatly appreciated. -jonathan

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