Jose,
For the issue as mentioned in below down mail I am following below two
approaches,
1. Move the TLSv1.2 enabled traffic to an intermediate port and then to
target port which has TLS1 enabled, in that ssl handshake from intermediate to
target port getting below error. While triaging with openssl command, it is
observed that the DH parameters are not proper. So we are trying to add the dh
parameters
C:\Users\robin.johnson\Documents\SSL\SSL>C:\openssl-0.9.8k_X64\bin\openssl
dhparam -inform PEM -in ./training_client.pem -check -text
unable to load DH parameters
1800:error:0906D06C:PEM routines:PEM_read_bio:no start
line:.\crypto\pem\pem_lib.c:650:Expecting: DH PARAMETERS
stunnel.log-->2016.11.23 23:08:32 LOG3[131]: SSL_connect: 14082174:
error:14082174:SSL routines:ssl3_check_cert_and_algorithm:dh key too small
2. Using https service in stunnel traffic is received by TLS V1.1
divert to non ssl enabled port.
Thanks and Regards,
Jothish
TIBCO TSD
Ph. : +91 44 39263958
Mobile : +91 9884040171
Support : +91 9962007110
OC : jothish.chokkalingam
Group mail:- [email protected]
From: Josealf.rm [mailto:[email protected]]
Sent: Thursday, November 24, 2016 4:36 PM
To: Chokkalingam, Jothish <[email protected]>
Cc: [email protected]; [email protected]
Subject: Re: [stunnel-users] Help in setting stunnel in server mode to over
come TLSV2 compatibility
Can you please elaborate? If you want us to help, you need to provide enough
information.
Regards
Jose
El 24/11/2016, a las 5:03 a.m.,
<[email protected]<mailto:[email protected]>>
<[email protected]<mailto:[email protected]>>
escribió:
Jose,
☺ you are right.i was trying but I thought it will work as a client and it
worked as a workaround. But will check for the dh key small error while
forwarding the traffic with SSL from intermediate port to another port.
Thanks and Regards,
Jothish
TIBCO TSD
Ph. : +91 44 39263958
Mobile : +91 9884040171
Support : +91 9962007110
OC : jothish.chokkalingam
Group mail:-
[email protected]<mailto:[email protected]>
From: Josealf.rm [mailto:[email protected]]
Sent: Thursday, November 24, 2016 2:48 PM
To: Chokkalingam, Jothish
<[email protected]<mailto:[email protected]>>
Cc: [email protected]<mailto:[email protected]>;
[email protected]<mailto:[email protected]>
Subject: Re: [stunnel-users] Help in setting stunnel in server mode to over
come TLSV2 compatibility
Jothish,
Stunnel in server mode is what you need, with 99.9% confidence.
When you write:
[https]
Accept=443
Connect=local host:80
Client=no
Stunnnel will expect TLS connections on port 443 and will forward then to your
normal web server running on loopback port 80.
Is that clear?
Regards,
Jose
El 24/11/2016, a las 2:29 a.m.,
<[email protected]<mailto:[email protected]>>
<[email protected]<mailto:[email protected]>>
escribió:
Is there a way to forward a Secure connection from one port to non secure port
using stunnel. I am googling but unable to find. If you have can you let me know
Thanks and Regards,
Jothish
TIBCO TSD
Ph. : +91 44 39263958
Mobile : +91 9884040171
Support : +91 9962007110
OC : jothish.chokkalingam
Group mail:-
[email protected]<mailto:[email protected]>
From: stunnel-users [mailto:[email protected]] On Behalf Of
Carter Browne
Sent: Wednesday, November 23, 2016 9:30 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [stunnel-users] Help in setting stunnel in server mode to over
come TLSV2 compatibility
There are other tools for performing port forwarding with less overhead (I
believe tappipe is one), although I make use stunnel to do this extensively.
In order forward a secure connection from one port to another is a two step
process with stunnel:
A sample configuration segment would be:
[SFDC reverse in]
client = no
accept = 8008
connect = localhost:48008
[SFDC reverse out]
client = yes
accept = localhost:48008
connect = localhost:8009
On 11/23/2016 10:18 AM, Rodney Lott wrote:
Hi, there.
I'm no stunnel expert, but here's my $0.05 (we have no pennies in Canada
anymore ;-) ):
- I would try including the key as well as the cert in your stunnel config
- I would enable debug on the openssl s_client call to see if it will indicate
why it is reseting. Same with your SFDC client to get more info.
- Question: is the "WARNING: can't open config file" message below indicative
of a permissions or path problem?
- Question: Is the stunnel cert and key compatible with the TIBCO server's
certificate? They need to be using certs generated from the same key source,
don't they?
- You might want to fix the SSL version in the stunnel config file (i.e.
sslVersion = TLSv1.2)
Good luck with your debugging.
Rodney
On 2016-11-22 07:43 PM,
[email protected]<mailto:[email protected]>
wrote:
HI all,
There is a problem we have currently connecting tibco client to SFDC sever via
TLS v1.2 and that’s solved by using stunnel in client mode. And the
communication from SFDC client to tibco server applications w.r.t TLS V1.2 I am
unable to solve using stunnel. Below is the configuration in stunnel in server
end to divert the traffic from 8008 to 8009, can you help here with the logs is
the stunnel configuration is correct or there any missed/need to alter.
[SFDC reverse proxy test]
debug=7
;client = yes
accept = 8008-->port used by sfdc client to connect to TIBCO server
connect = localhost:8009 -->Tibco server that’s running
cert = stunnel.pem
2016.11.23 08:31:56 LOG7[118]: Service [SFDC reverse proxy test] started
2016.11.23 08:31:56 LOG7[118]: Option TCP_NODELAY set on local socket
2016.11.23 08:31:56 LOG5[118]: Service [SFDC reverse proxy test] accepted
connection from 101.167.198.14:54477
2016.11.23 08:31:56 LOG6[118]: Peer certificate not required
2016.11.23 08:31:56 LOG7[118]: SSL state (accept): before/accept initialization
2016.11.23 08:31:56 LOG3[118]: SSL_accept: Peer suddenly disconnected
2016.11.23 08:31:56 LOG5[118]: Connection reset: 0 byte(s) sent to SSL, 0
byte(s) sent to socket
2016.11.23 08:31:56 LOG7[118]: Local descriptor (FD=696) closed
2016.11.23 08:31:56 LOG7[118]: Service [SFDC reverse proxy test] finished (0
left)
PFB the openssl snap shot looks odd
C:\Program Files (x86)\stunnel\bin>openssl s_client -connect localhost:8008
-prexit -showcerts
WARNING: can't open config file: /devel/win32/openssl/openssl.cnf
CONNECTED(0000016C)
Thanks and Regards,
Jothish
TIBCO TSD
Ph. : +91 44 39263958
Mobile : +91 9884040171
Support : +91 9962007110
OC : jothish.chokkalingam
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