Stunnel is a small tool that can wrap the connection of other protocols with SSL/TLS.

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2answers
220 views

how to portforward port 7300 from server A to server B

We are using Stunnel. But want to replace it is with an iptables entry if possible. 192.168.123.122:7300 need to be forwarded to 192.168.123.188:7300. So in iptables I set these two entries: [root@...
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1answer
55 views

Stunnel “wrong version number” error with TLS-PSK

I've got Stunnel running on a Raspberry Pi which is acting as a TLS wrapper for an apache2 server. I've configured it to use TLS-PSK (correctly, I think), but the logs show the following when I try to ...
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1answer
236 views

Stunnel as Windows service doesn't “start” on reboot

Running stunnel 5.03 on Windows 2008 R2. Everything is installed and working fine. I can even start/stop the service no problem... When I reboot my server stunnel service shows as started but ...
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1answer
310 views

How to configure Stunnel to work with Internet explorer

My application works in the following way: The browsers are configured with a local proxy which is an instance of Stunnel running in Client mode that connects to a remote server to another instance of ...
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0answers
1k views

Confused about stunnel's TIMEOUTclose setting

I understand from the stunnel documentation and from what I read on the Internet that MS has a buggy implementation of SSL; it fails to send a close_notify thing. The solution, says the documentation, ...
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0answers
69 views

Why is the loopback device needed on a client side of Stunnel?

This SANS Institute guide states that "On the client side, a port listening on the loopback interface of the local system would send/receive data on the clear-text protocol and tunnel out on ...
2
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0answers
13 views

stunnel TIMEOUTconnect on Ubuntu 15.10

We use stunnel extensively for LDAP proxying. We recently set up a Ubuntu 15.10 server to migrate some of the tunnels to and are unable to get it to work. We've scraped through the logs, configs, ...
2
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0answers
84 views

iptables configuations for stunnel+squid

I'm building a highly anonymous proxy server with squid and stunnel, and I'm facing a configurations problem on iptables. The server should act like this: browser <-> client stunnel <=> ...
2
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0answers
311 views

HTTP to HTTPS local proxy that can do the HTTPS connection over a proxy

Here's the deal: Our client software can only connect using http protocol, it can not do https. However, security requirements dictate end-to-end security, so we need to use https when talking to ...
2
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0answers
772 views

pfsense + haproxy + stunnel as reverse proxy with load balancing and ssl terminaltion

i have this topology as title says with a pfsense with installed haproxy and stunnel. Because i saw that haproxy can't do ssl termination i thought about stunnel. But i don't know how to set up it. My ...
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0answers
14 views

stunnel does not handle SNI correctly

I am trying to get stunnel-4.53-1.1 in Debian Wheezy running. The important parts of my configuration (/etc/stunnel/stunnel.conf) look like that: [https] cert = /etc/ssl/certs/mydomain.pem key = /etc/...
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0answers
115 views

How to log/see the traffic going through stunnel before/after encryption?

So I am using stunnel to talk to a SSL server. I would like to see the messages I am sending before they get encrypted and more importantly the messages I am receiving after they get decrypted. I ...
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0answers
230 views

Syslog-ng and Stunnel between two hosts (Connection refused)

I'd like to setup syslog-ng over stunnel between a host on my LAN and a host in my DMZ but can't quite figure out the configuration. The stunnel config seems to be correct. If I shutdown syslog on ...
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0answers
384 views

Can stunnel be used to round robin tcp connections without SSL?

Today, I'm already using stunnel to provide SSL termination to a set of TCP services where the connections are round-robin'ed, this is done, for example, like follows: [myserv] accept = 443 connect = ...
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0answers
61 views

How can I update rekeyed certificates on stunnel?

I have configured stunnel using GoDaddy certificate and it was working fine. Due to some circumstances, I need to rekey the certificate and update the pem file on the load balancer. Upon updating the ...
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0answers
255 views

Stunnel only for specific domain

I'm configuring stunnel to encapsulate SSL petitions to Haproxy. Haproxy serves several sites in the same IP address: domain.com - Website app.domain.com - Node.js webserver I acquired an SSL ...
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0answers
369 views

Issue connecting to Amazon RDS with stunnel on Windows

I'm trying to set up a local pgbouncer server that then connects using SSL to Amazon's PostgreSQL RDS service. According to pgbouncer's documentation, you need to use something like stunnel to connect....
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0answers
863 views

stunnel: redirect HTTP traffic to HTTPS

Is it possible for stunnel to detect non-SSL requests and issue a redirect to HTTPS URL? Or maybe it's possible to have stunnel mark these requests somehow and let the underlying app issue the ...
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0answers
296 views

Keepalived, Junos, and ARP caching

I'm trying to configure an active-passive stunnel setup, with the aid of Keepalived, for a public IP address at our company datacenter. I would like to know if a router or switch reconfiguration is ...
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0answers
494 views

stunnel Haproxy ldap authentication

in our setup port 433 is handled by stunnel. After that haproxy will dispatches the request to the appropriate backend. I have managed to enable authentication in haproxy. But the users and passwords ...
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0answers
442 views

Switch stunnel from self-signed cert to signed by CA cert

We use stunnel configured to provide SSL-tunnel between SERVER A (where we have stunnel configured as client) and many SERVERS B (where we deployed stunnel configured to work in server mode). We use ...
0
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0answers
27 views

stunnel won't verify client certificate as expected

I'm trying to set up stunnel to provide a TLS wrapper to an HTTP service that doesn't natively support TLS. I have this working well without using TLS client certificates. When adding the client ...
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0answers
10 views

System.Net.Mail, stunnel and SDE interoperability

We have a third party product, SDE, which we are trying to attach to an stunnel to support our modern email servers. This product, I believe, internally uses System.Net.Mail or System.Web.Mail, given ...
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0answers
19 views

stunnel keeps stopping with WSAECONNREFUSED given

Right so bit of background to start with I've got 2 stunnel installs on 2 different servers and basically using ensemble and stunnel to bounce a message around with ssl cert. Here is the flow. Where ...
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0answers
33 views

Having trouble getting correct information from Motion camera streaming server for fail2ban

I have a camera running a Motion streaming server, which uses simple HTTP md5 authentication, tunneled through stunnel on the server side. I'm using like to have fail2ban limit requests just for ...
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0answers
97 views

stunnel with ntlm Proxy-Authenticate: NTLM authorization request rejected

My stunnel setup doesn't work through a http proxy with ntlm authentication, the stunnel returns an error message: Proxy-Authenticate: NTLM authorization request rejected Whereas the wireshark ...
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0answers
194 views

CentOS Postfix/Dovecot status deferred conversation with 127.0.0.1[127.0.0.1] timed out while receiving the initial server greeting

Linux Kernel: Linux 2.6.32-504.16.2.el6.i686 on i686 RAM: 6GB OS: CentOS 6.6 Postfix 2.6.6 Dovecot 2.0.9 Relay Host Verizon Stunnel through 127.0.0.1:2525 Webmin 1.750 Virtualmin 4.17.gpl Multiple ...
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0answers
95 views

Apache not forwarding to HAProxy

Scenario: I have a mobile application that needs to talk to a service hosted by an IBM Datapower appliance. However, the Datapower appliance requires bi-directional SSL and that will not work for ...
0
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0answers
121 views

Why does stunnel keep on reading the old pem file?

I've updated the pem file using the rekeyed certificate. But upon checking the certificate information through various SSL checkers, the old certificate was being read. I tried reloading the stunnel ...