I am faling to connect to gmail. Not sure what that bind error means.
iqbala@ghar:~$ sudo stunnel4
2008.12.15 13:53:17 LOG7[3839:3083650736]: Snagged 64 random bytes
from /home/iqbala/.rnd
2008.12.15 13:53:17 LOG7[3839:3083650736]: Wrote 1024 new random bytes
to /home/iqbala/.rnd
2008.12.15 13:53:17 LOG7[3839:3083650736]: RAND_status claims
sufficient entropy for the PRNG
2008.12.15 13:53:17 LOG7[3839:3083650736]: PRNG seeded successfully
2008.12.15 13:53:17 LOG7[3839:3083650736]: Certificate: /etc/stunnel/stunnel.pem
2008.12.15 13:53:17 LOG7[3839:3083650736]: Certificate loaded
2008.12.15 13:53:17 LOG7[3839:3083650736]: Key file: /etc/stunnel/stunnel.pem
2008.12.15 13:53:17 LOG7[3839:3083650736]: Private key loaded
2008.12.15 13:53:17 LOG7[3839:3083650736]: SSL context initialized for
service ssmtp
2008.12.15 13:53:17 LOG5[3839:3083650736]: stunnel 4.22 on
i486-pc-linux-gnu with OpenSSL 0.9.8g 19 Oct 2007
2008.12.15 13:53:17 LOG5[3839:3083650736]: Threading:PTHREAD
SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP
2008.12.15 13:53:17 LOG6[3839:3083650736]: file ulimit = 1024 (can be
changed with 'ulimit -n')
2008.12.15 13:53:17 LOG6[3839:3083650736]: poll() used - no FD_SETSIZE
limit for file descriptors
2008.12.15 13:53:17 LOG5[3839:3083650736]: 500 clients allowed
2008.12.15 13:53:17 LOG7[3839:3083650736]: FD 10 in non-blocking mode
2008.12.15 13:53:17 LOG7[3839:3083650736]: FD 11 in non-blocking mode
2008.12.15 13:53:17 LOG7[3839:3083650736]: FD 12 in non-blocking mode
2008.12.15 13:53:17 LOG7[3839:3083650736]: SO_REUSEADDR option set on
accept socket
2008.12.15 13:53:17 LOG3[3839:3083650736]: Error binding ssmtp to
74.125.93.111:587
2008.12.15 13:53:17 LOG3[3839:3083650736]: bind: Cannot assign
requested address (99)
Here is how my conf file looks like
iqbala@ghar:~$ cat /etc/stunnel/stunnel.conf | egrep -v "^;|^$"
cert = /etc/stunnel/stunnel.pem
foreground = yes
sslVersion = SSLv3
chroot = /var/lib/stunnel4/
setuid = stunnel4
setgid = stunnel4
pid = /stunnel4.pid
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
debug = 7
output = /var/log/stunnel4/stunnel.log
client = yes
[ssmtp]
accept = smtp.gmail.com:587
connect = 25
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
5
9
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
3
6
Hi,
We are using 64 bit version of centos, and the ram of this system is 1gb
so should we increase this limit to 100000 in the limits.conf
Regards
senthil
On Sun, Jun 30, 2013 at 12:31 AM, Michael Curran <mike_curran(a)hotmail.com>wrote:
> Are you running 32-kernel for centos?
>
> 32-bit limits in the 4500 range for open connections due to the memory
> constraints
>
> We usually set our open file limits to 100I specifically for Stunnel user
>
> *Sent from my Verizon Wireless 4G LTE DROID*
>
>
> Senthil Naidu <senthil.naidu(a)gmail.com> wrote:
>
> Hi
>
>
>
> We are using stunnel 4.32 on centos and our ulimits in limits.conf are as
> follows
>
>
>
> * soft nofile 16384
>
> * hard nofile 65536
>
>
>
> We keep getting the error “too many open files(24)” and stunnel does not
> accept new connection till we restart the same
>
>
>
> Is this ulimit proper or we need to increase the same , we are look for
> 3000 to 5000 connections
>
>
>
> Regards
>
> Senthil
>
2
2
Hi
We are using stunnel 4.32 on centos and our ulimits in limits.conf are as
follows
* soft nofile 16384
* hard nofile 65536
We keep getting the error “too many open files(24)” and stunnel does not
accept new connection till we restart the same
Is this ulimit proper or we need to increase the same , we are look for
3000 to 5000 connections
Regards
Senthil
1
0
28 Jun '13
I downloaded the old argosoft freeware and it works! Praise God!
Thanks to all for your time, help and suggestions!! Much appreciated.
Stephen Gates
Harold K. Scholz Company
7800 Serum Avenue
Ralston, NE 68127
402-339-7600
2
1
Re: [stunnel-users] Sending Email from PLC Without Authentication with gmail - static ip/argosoft/php script
by Stephen Gates 28 Jun '13
by Stephen Gates 28 Jun '13
28 Jun '13
> The only limitation I can recall on this freeware version is in the file
size (5MB) and in the retries between relay errors.
>
> But you have to be aware when using a mail server that, thanks to
Spamhaus, you need a static IP or almost all SMTPs out there will block your
server to accept mail from (including Gmail)."
>
The router that my network is connected to has a static IP as far as I can
tell and so does the PC and PLC on the LAN. How can I determine for sure if
I have a static IP? I will try the Argosoft link.
> Question? What does this device have available for resources. I use a php
script that checks server status emails via gmail when there are changes in
status, and it handles the connection directly to gmail.
>
I'm not sure. I don't know what php script is.
I am about to try emailrelay from sourceforge.net. Anybody have experience
with that? http://emailrelay.sourceforge.net/
Thanks,
Stephen Gates
Harold K. Scholz Company
7800 Serum Avenue
Ralston, NE 68127
402-339-7600
1
0
Re: [stunnel-users] Sending Email from PLC Without Authentication with gmail
by Stephen Gates 27 Jun '13
by Stephen Gates 27 Jun '13
27 Jun '13
"The issue with your situation is not stunnel but the fact that your SMTP
client does not have the capability to provide authentication.
As you mentioned, Gmail will require authentication information from the
client.
If that information is not provided by the SMTP client application, then the
SMTP transaction will fail.
?
I would suggest you consider setting up some kind of SMTP Relay. Which will
serve as a proxy between your PLC and Google SMTP servers.
?
You can also take a look at this document and if possible implement the last
approach?
http://support.google.com/a/bin/answer.py?hl=en
<http://support.google.com/a/bin/answer.py?hl=en&answer=176600>
&answer=176600"
Thanks for your help Leandro. Do you have a suggestion for a SMTP Relay?? I
have tried Free SMTP Server which was the only thing that has worked so far
and worked almost perfectly except that it can only send out 10 emails a
day. And I need more capacity for sending than that.
I also have used trial versions of ArgoSoft, 1st Mail Server and QK SMTP
Server but couldn't get those to work.
I have tried the Google suggestion for using asmpx.l.google.com but I need
to send to vtext.com addresses which are outside of the google domain. I
tried adding the vtext.com addresses to googlegroups.com and sending emails
using the asmpx.l.google.com server but vtext did not receive the emails for
googlegroups.com. So I'm desperate to find some sort of solution.
Thanks,
Stephen Gates
Harold K. Scholz Company
7800 Serum Avenue
Ralston, NE 68127
402-339-7600
3
2
Hi,
Is there any configuration that can be used, to change the 'connection reset by peer' to 'connection refused'?.
In our setup we are using day cq dispatcher with sticky session enabled, but dispatcher is invalidating sticky session only when it receiving error as 'connection refused', while stunnel is always sending error as 'connection reset by peer', whenever the connect server is down/crashed.
Thanks
Prem
2
1
A customer needs to send emails from a Programmable Logic Controller (PLC)
which cannot provide authentication. The customer's email server is gmail
which obviously requires authentication.
The PLC IP is 192.168.1.2 and the PC IP on which stunnel is installed is
192.168.1.31
My config is:
cert = stunnel.pem
[smtps]
client = yes
accept = 25
connect = smtp.gmail.com:465
The PLC is set up to send emails to the IP of the PC 192.168.1.31
When I try to send emails I get the following in the stunnel log:
2013.06.26 14:26:30 LOG5[12384:13048]: Service [smtps] accepted connection
from 192.168.1.2:2938
2013.06.26 14:26:30 LOG5[12384:13048]: connect_blocking: connected
74.125.130.108:465
2013.06.26 14:26:30 LOG5[12384:13048]: Service [smtps] connected remote
server from 192.168.1.31:53599
Any help would be greatly appreciated!
Stephen Gates
Harold K. Scholz Company
7800 Serum Avenue
Ralston, NE 68127
402-339-7600
2
1
Re: [stunnel-users] Sending Email from PLC Without Authentication - With debug = 7 log
by Stephen Gates 26 Jun '13
by Stephen Gates 26 Jun '13
26 Jun '13
Just wanted to send this again with a clarified subject. Still getting the
connect_blocking error. Any more ideas?
Thanks for replying, Brian.
From: Stephen Gates [mailto:[email protected]]
Sent: Wednesday, June 26, 2013 3:09 PM
To: 'stunnel-users(a)stunnel.org'
Subject: RE: Sending Email from PLC Without Authentication with gmail
I added the following as Brian suggested.
debug = 7
I tried doing output = stunnel.log but that cause an error when I reloded
the config file.
Here's the log after adding the above and trying to send another email.
2013.06.26 15:03:37 LOG7[10620:10992]: Service [smtps] (FD=416) bound to
0.0.0.0:25
2013.06.26 15:03:58 LOG7[10620:10992]: Service [smtps] accepted (FD=296)
from 192.168.1.2:2946
2013.06.26 15:03:58 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:03:58 LOG7[10620:10992]: New thread created
2013.06.26 15:03:58 LOG7[10620:10360]: Service [smtps] started
2013.06.26 15:03:58 LOG5[10620:10360]: Service [smtps] accepted connection
from 192.168.1.2:2946
2013.06.26 15:03:58 LOG6[10620:10360]: connect_blocking: connecting
74.125.130.108:465
2013.06.26 15:03:58 LOG7[10620:10360]: connect_blocking: s_poll_wait
74.125.130.108:465: waiting 10 seconds
2013.06.26 15:03:58 LOG5[10620:10360]: connect_blocking: connected
74.125.130.108:465
2013.06.26 15:03:58 LOG5[10620:10360]: Service [smtps] connected remote
server from 192.168.1.31:53640
2013.06.26 15:03:58 LOG7[10620:10360]: Remote socket (FD=368) initialized
2013.06.26 15:03:58 LOG7[10620:10360]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): before/connect
initialization
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 read
server certificate A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 read
server done A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 write
client key exchange A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 flush data
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 read
server session ticket A
2013.06.26 15:03:58 LOG7[10620:10360]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:03:58 LOG7[10620:10360]: 1 items in the session cache
2013.06.26 15:03:58 LOG7[10620:10360]: 1 client connects (SSL_connect())
2013.06.26 15:03:58 LOG7[10620:10360]: 1 client connects that finished
2013.06.26 15:03:58 LOG7[10620:10360]: 0 client renegotiations requested
2013.06.26 15:03:58 LOG7[10620:10360]: 0 server connects (SSL_accept())
2013.06.26 15:03:58 LOG7[10620:10360]: 0 server connects that finished
2013.06.26 15:03:58 LOG7[10620:10360]: 0 server renegotiations requested
2013.06.26 15:03:58 LOG7[10620:10360]: 0 session cache hits
2013.06.26 15:03:58 LOG7[10620:10360]: 0 external session cache hits
2013.06.26 15:03:58 LOG7[10620:10360]: 0 session cache misses
2013.06.26 15:03:58 LOG7[10620:10360]: 0 session cache timeouts
2013.06.26 15:03:58 LOG7[10620:10360]: Peer certificate was cached (2266
bytes)
2013.06.26 15:03:58 LOG6[10620:10360]: SSL connected: new session negotiated
2013.06.26 15:03:58 LOG6[10620:10360]: Negotiated TLSv1/SSLv3 ciphersuite:
AES128-SHA (128-bit encryption)
2013.06.26 15:03:58 LOG6[10620:10360]: Compression: null, expansion: null
2013.06.26 15:03:59 LOG6[10620:10360]: SSL socket closed (SSL_read)
2013.06.26 15:03:59 LOG7[10620:10360]: Sent socket write shutdown
2013.06.26 15:03:59 LOG5[10620:10360]: Connection closed: 65 byte(s) sent to
SSL, 293 byte(s) sent to socket
2013.06.26 15:03:59 LOG7[10620:10360]: Remote socket (FD=368) closed
2013.06.26 15:03:59 LOG7[10620:10360]: Local socket (FD=296) closed
2013.06.26 15:03:59 LOG7[10620:10360]: Service [smtps] finished (0 left)
2013.06.26 15:03:59 LOG7[10620:10992]: Service [smtps] accepted (FD=364)
from 192.168.1.2:2947
2013.06.26 15:03:59 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:03:59 LOG7[10620:10992]: New thread created
2013.06.26 15:03:59 LOG7[10620:7792]: Service [smtps] started
2013.06.26 15:03:59 LOG5[10620:7792]: Service [smtps] accepted connection
from 192.168.1.2:2947
2013.06.26 15:03:59 LOG6[10620:7792]: connect_blocking: connecting
74.125.130.109:465
2013.06.26 15:03:59 LOG7[10620:7792]: connect_blocking: s_poll_wait
74.125.130.109:465: waiting 10 seconds
2013.06.26 15:03:59 LOG5[10620:7792]: connect_blocking: connected
74.125.130.109:465
2013.06.26 15:03:59 LOG5[10620:7792]: Service [smtps] connected remote
server from 192.168.1.31:53641
2013.06.26 15:03:59 LOG7[10620:7792]: Remote socket (FD=368) initialized
2013.06.26 15:03:59 LOG7[10620:7792]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): before/connect
initialization
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 read server
hello A
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:03:59 LOG7[10620:7792]: SSL state (connect): SSLv3 flush data
2013.06.26 15:03:59 LOG7[10620:7792]: 1 items in the session cache
2013.06.26 15:03:59 LOG7[10620:7792]: 2 client connects (SSL_connect())
2013.06.26 15:03:59 LOG7[10620:7792]: 2 client connects that finished
2013.06.26 15:03:59 LOG7[10620:7792]: 0 client renegotiations requested
2013.06.26 15:03:59 LOG7[10620:7792]: 0 server connects (SSL_accept())
2013.06.26 15:03:59 LOG7[10620:7792]: 0 server connects that finished
2013.06.26 15:03:59 LOG7[10620:7792]: 0 server renegotiations requested
2013.06.26 15:03:59 LOG7[10620:7792]: 1 session cache hits
2013.06.26 15:03:59 LOG7[10620:7792]: 0 external session cache hits
2013.06.26 15:03:59 LOG7[10620:7792]: 0 session cache misses
2013.06.26 15:03:59 LOG7[10620:7792]: 0 session cache timeouts
2013.06.26 15:03:59 LOG6[10620:7792]: SSL connected: previous session reused
2013.06.26 15:04:00 LOG6[10620:7792]: SSL socket closed (SSL_read)
2013.06.26 15:04:00 LOG7[10620:7792]: Sent socket write shutdown
2013.06.26 15:04:00 LOG5[10620:7792]: Connection closed: 65 byte(s) sent to
SSL, 287 byte(s) sent to socket
2013.06.26 15:04:00 LOG7[10620:7792]: Remote socket (FD=368) closed
2013.06.26 15:04:00 LOG7[10620:7792]: Local socket (FD=364) closed
2013.06.26 15:04:00 LOG7[10620:7792]: Service [smtps] finished (0 left)
2013.06.26 15:04:00 LOG7[10620:10992]: Service [smtps] accepted (FD=372)
from 192.168.1.2:2948
2013.06.26 15:04:00 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:00 LOG7[10620:10992]: New thread created
2013.06.26 15:04:00 LOG7[10620:12944]: Service [smtps] started
2013.06.26 15:04:00 LOG5[10620:12944]: Service [smtps] accepted connection
from 192.168.1.2:2948
2013.06.26 15:04:00 LOG6[10620:12944]: connect_blocking: connecting
74.125.130.108:465
2013.06.26 15:04:00 LOG7[10620:12944]: connect_blocking: s_poll_wait
74.125.130.108:465: waiting 10 seconds
2013.06.26 15:04:00 LOG5[10620:12944]: connect_blocking: connected
74.125.130.108:465
2013.06.26 15:04:00 LOG5[10620:12944]: Service [smtps] connected remote
server from 192.168.1.31:53642
2013.06.26 15:04:00 LOG7[10620:12944]: Remote socket (FD=368) initialized
2013.06.26 15:04:00 LOG7[10620:12944]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:00 LOG7[10620:12944]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:00 LOG7[10620:12944]: 1 items in the session cache
2013.06.26 15:04:00 LOG7[10620:12944]: 3 client connects (SSL_connect())
2013.06.26 15:04:00 LOG7[10620:12944]: 3 client connects that finished
2013.06.26 15:04:00 LOG7[10620:12944]: 0 client renegotiations requested
2013.06.26 15:04:00 LOG7[10620:12944]: 0 server connects (SSL_accept())
2013.06.26 15:04:00 LOG7[10620:12944]: 0 server connects that finished
2013.06.26 15:04:00 LOG7[10620:12944]: 0 server renegotiations requested
2013.06.26 15:04:00 LOG7[10620:12944]: 2 session cache hits
2013.06.26 15:04:00 LOG7[10620:12944]: 0 external session cache hits
2013.06.26 15:04:00 LOG7[10620:12944]: 0 session cache misses
2013.06.26 15:04:00 LOG7[10620:12944]: 0 session cache timeouts
2013.06.26 15:04:00 LOG6[10620:12944]: SSL connected: previous session
reused
2013.06.26 15:04:01 LOG6[10620:12944]: SSL socket closed (SSL_read)
2013.06.26 15:04:01 LOG7[10620:12944]: Sent socket write shutdown
2013.06.26 15:04:01 LOG5[10620:12944]: Connection closed: 65 byte(s) sent to
SSL, 290 byte(s) sent to socket
2013.06.26 15:04:01 LOG7[10620:12944]: Remote socket (FD=368) closed
2013.06.26 15:04:01 LOG7[10620:12944]: Local socket (FD=372) closed
2013.06.26 15:04:01 LOG7[10620:12944]: Service [smtps] finished (0 left)
2013.06.26 15:04:01 LOG7[10620:10992]: Service [smtps] accepted (FD=288)
from 192.168.1.2:2949
2013.06.26 15:04:01 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:01 LOG7[10620:10992]: New thread created
2013.06.26 15:04:01 LOG7[10620:12900]: Service [smtps] started
2013.06.26 15:04:01 LOG5[10620:12900]: Service [smtps] accepted connection
from 192.168.1.2:2949
2013.06.26 15:04:01 LOG6[10620:12900]: connect_blocking: connecting
74.125.130.109:465
2013.06.26 15:04:01 LOG7[10620:12900]: connect_blocking: s_poll_wait
74.125.130.109:465: waiting 10 seconds
2013.06.26 15:04:01 LOG5[10620:12900]: connect_blocking: connected
74.125.130.109:465
2013.06.26 15:04:01 LOG5[10620:12900]: Service [smtps] connected remote
server from 192.168.1.31:53643
2013.06.26 15:04:01 LOG7[10620:12900]: Remote socket (FD=368) initialized
2013.06.26 15:04:01 LOG7[10620:12900]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:01 LOG7[10620:12900]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:01 LOG7[10620:12900]: 1 items in the session cache
2013.06.26 15:04:01 LOG7[10620:12900]: 4 client connects (SSL_connect())
2013.06.26 15:04:01 LOG7[10620:12900]: 4 client connects that finished
2013.06.26 15:04:01 LOG7[10620:12900]: 0 client renegotiations requested
2013.06.26 15:04:01 LOG7[10620:12900]: 0 server connects (SSL_accept())
2013.06.26 15:04:01 LOG7[10620:12900]: 0 server connects that finished
2013.06.26 15:04:01 LOG7[10620:12900]: 0 server renegotiations requested
2013.06.26 15:04:01 LOG7[10620:12900]: 3 session cache hits
2013.06.26 15:04:01 LOG7[10620:12900]: 0 external session cache hits
2013.06.26 15:04:01 LOG7[10620:12900]: 0 session cache misses
2013.06.26 15:04:01 LOG7[10620:12900]: 0 session cache timeouts
2013.06.26 15:04:01 LOG6[10620:12900]: SSL connected: previous session
reused
2013.06.26 15:04:02 LOG6[10620:12900]: SSL socket closed (SSL_read)
2013.06.26 15:04:02 LOG7[10620:12900]: Sent socket write shutdown
2013.06.26 15:04:02 LOG5[10620:12900]: Connection closed: 65 byte(s) sent to
SSL, 293 byte(s) sent to socket
2013.06.26 15:04:02 LOG7[10620:12900]: Remote socket (FD=368) closed
2013.06.26 15:04:02 LOG7[10620:12900]: Local socket (FD=288) closed
2013.06.26 15:04:02 LOG7[10620:12900]: Service [smtps] finished (0 left)
2013.06.26 15:04:02 LOG7[10620:10992]: Service [smtps] accepted (FD=292)
from 192.168.1.2:2950
2013.06.26 15:04:02 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:02 LOG7[10620:10992]: New thread created
2013.06.26 15:04:02 LOG7[10620:11560]: Service [smtps] started
2013.06.26 15:04:02 LOG5[10620:11560]: Service [smtps] accepted connection
from 192.168.1.2:2950
2013.06.26 15:04:02 LOG6[10620:11560]: connect_blocking: connecting
74.125.130.108:465
2013.06.26 15:04:02 LOG7[10620:11560]: connect_blocking: s_poll_wait
74.125.130.108:465: waiting 10 seconds
2013.06.26 15:04:02 LOG5[10620:11560]: connect_blocking: connected
74.125.130.108:465
2013.06.26 15:04:02 LOG5[10620:11560]: Service [smtps] connected remote
server from 192.168.1.31:53644
2013.06.26 15:04:02 LOG7[10620:11560]: Remote socket (FD=368) initialized
2013.06.26 15:04:02 LOG7[10620:11560]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:02 LOG7[10620:11560]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:02 LOG7[10620:11560]: 1 items in the session cache
2013.06.26 15:04:02 LOG7[10620:11560]: 5 client connects (SSL_connect())
2013.06.26 15:04:02 LOG7[10620:11560]: 5 client connects that finished
2013.06.26 15:04:02 LOG7[10620:11560]: 0 client renegotiations requested
2013.06.26 15:04:02 LOG7[10620:11560]: 0 server connects (SSL_accept())
2013.06.26 15:04:02 LOG7[10620:11560]: 0 server connects that finished
2013.06.26 15:04:02 LOG7[10620:11560]: 0 server renegotiations requested
2013.06.26 15:04:02 LOG7[10620:11560]: 4 session cache hits
2013.06.26 15:04:02 LOG7[10620:11560]: 0 external session cache hits
2013.06.26 15:04:02 LOG7[10620:11560]: 0 session cache misses
2013.06.26 15:04:02 LOG7[10620:11560]: 0 session cache timeouts
2013.06.26 15:04:02 LOG6[10620:11560]: SSL connected: previous session
reused
2013.06.26 15:04:03 LOG6[10620:11560]: SSL socket closed (SSL_read)
2013.06.26 15:04:03 LOG7[10620:11560]: Sent socket write shutdown
2013.06.26 15:04:03 LOG5[10620:11560]: Connection closed: 65 byte(s) sent to
SSL, 296 byte(s) sent to socket
2013.06.26 15:04:03 LOG7[10620:11560]: Remote socket (FD=368) closed
2013.06.26 15:04:03 LOG7[10620:11560]: Local socket (FD=292) closed
2013.06.26 15:04:03 LOG7[10620:11560]: Service [smtps] finished (0 left)
2013.06.26 15:04:03 LOG7[10620:10992]: Service [smtps] accepted (FD=296)
from 192.168.1.2:2951
2013.06.26 15:04:03 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:03 LOG7[10620:10992]: New thread created
2013.06.26 15:04:03 LOG7[10620:10092]: Service [smtps] started
2013.06.26 15:04:03 LOG5[10620:10092]: Service [smtps] accepted connection
from 192.168.1.2:2951
2013.06.26 15:04:03 LOG6[10620:10092]: connect_blocking: connecting
74.125.130.109:465
2013.06.26 15:04:03 LOG7[10620:10092]: connect_blocking: s_poll_wait
74.125.130.109:465: waiting 10 seconds
2013.06.26 15:04:03 LOG5[10620:10092]: connect_blocking: connected
74.125.130.109:465
2013.06.26 15:04:03 LOG5[10620:10092]: Service [smtps] connected remote
server from 192.168.1.31:53645
2013.06.26 15:04:03 LOG7[10620:10092]: Remote socket (FD=368) initialized
2013.06.26 15:04:03 LOG7[10620:10092]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:03 LOG7[10620:10092]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:03 LOG7[10620:10092]: 1 items in the session cache
2013.06.26 15:04:03 LOG7[10620:10092]: 6 client connects (SSL_connect())
2013.06.26 15:04:03 LOG7[10620:10092]: 6 client connects that finished
2013.06.26 15:04:03 LOG7[10620:10092]: 0 client renegotiations requested
2013.06.26 15:04:03 LOG7[10620:10092]: 0 server connects (SSL_accept())
2013.06.26 15:04:03 LOG7[10620:10092]: 0 server connects that finished
2013.06.26 15:04:03 LOG7[10620:10092]: 0 server renegotiations requested
2013.06.26 15:04:03 LOG7[10620:10092]: 5 session cache hits
2013.06.26 15:04:03 LOG7[10620:10092]: 0 external session cache hits
2013.06.26 15:04:03 LOG7[10620:10092]: 0 session cache misses
2013.06.26 15:04:03 LOG7[10620:10092]: 0 session cache timeouts
2013.06.26 15:04:03 LOG6[10620:10092]: SSL connected: previous session
reused
2013.06.26 15:04:04 LOG6[10620:10092]: SSL socket closed (SSL_read)
2013.06.26 15:04:04 LOG7[10620:10092]: Sent socket write shutdown
2013.06.26 15:04:04 LOG5[10620:10092]: Connection closed: 65 byte(s) sent to
SSL, 290 byte(s) sent to socket
2013.06.26 15:04:04 LOG7[10620:10092]: Remote socket (FD=368) closed
2013.06.26 15:04:04 LOG7[10620:10092]: Local socket (FD=296) closed
2013.06.26 15:04:04 LOG7[10620:10092]: Service [smtps] finished (0 left)
2013.06.26 15:04:04 LOG7[10620:10992]: Service [smtps] accepted (FD=364)
from 192.168.1.2:2952
2013.06.26 15:04:04 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:04 LOG7[10620:10992]: New thread created
2013.06.26 15:04:04 LOG7[10620:1404]: Service [smtps] started
2013.06.26 15:04:04 LOG5[10620:1404]: Service [smtps] accepted connection
from 192.168.1.2:2952
2013.06.26 15:04:04 LOG6[10620:1404]: connect_blocking: connecting
74.125.130.108:465
2013.06.26 15:04:04 LOG7[10620:1404]: connect_blocking: s_poll_wait
74.125.130.108:465: waiting 10 seconds
2013.06.26 15:04:04 LOG5[10620:1404]: connect_blocking: connected
74.125.130.108:465
2013.06.26 15:04:04 LOG5[10620:1404]: Service [smtps] connected remote
server from 192.168.1.31:53646
2013.06.26 15:04:04 LOG7[10620:1404]: Remote socket (FD=368) initialized
2013.06.26 15:04:04 LOG7[10620:1404]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:04 LOG7[10620:1404]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:04 LOG7[10620:1404]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:05 LOG7[10620:1404]: SSL state (connect): SSLv3 read server
hello A
2013.06.26 15:04:05 LOG7[10620:1404]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:05 LOG7[10620:1404]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:05 LOG7[10620:1404]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:05 LOG7[10620:1404]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:05 LOG7[10620:1404]: 1 items in the session cache
2013.06.26 15:04:05 LOG7[10620:1404]: 7 client connects (SSL_connect())
2013.06.26 15:04:05 LOG7[10620:1404]: 7 client connects that finished
2013.06.26 15:04:05 LOG7[10620:1404]: 0 client renegotiations requested
2013.06.26 15:04:05 LOG7[10620:1404]: 0 server connects (SSL_accept())
2013.06.26 15:04:05 LOG7[10620:1404]: 0 server connects that finished
2013.06.26 15:04:05 LOG7[10620:1404]: 0 server renegotiations requested
2013.06.26 15:04:05 LOG7[10620:1404]: 6 session cache hits
2013.06.26 15:04:05 LOG7[10620:1404]: 0 external session cache hits
2013.06.26 15:04:05 LOG7[10620:1404]: 0 session cache misses
2013.06.26 15:04:05 LOG7[10620:1404]: 0 session cache timeouts
2013.06.26 15:04:05 LOG6[10620:1404]: SSL connected: previous session reused
2013.06.26 15:04:05 LOG6[10620:1404]: SSL socket closed (SSL_read)
2013.06.26 15:04:05 LOG7[10620:1404]: Sent socket write shutdown
2013.06.26 15:04:05 LOG5[10620:1404]: Connection closed: 65 byte(s) sent to
SSL, 290 byte(s) sent to socket
2013.06.26 15:04:05 LOG7[10620:1404]: Remote socket (FD=368) closed
2013.06.26 15:04:05 LOG7[10620:1404]: Local socket (FD=364) closed
2013.06.26 15:04:05 LOG7[10620:1404]: Service [smtps] finished (0 left)
2013.06.26 15:04:05 LOG7[10620:10992]: Service [smtps] accepted (FD=372)
from 192.168.1.2:2953
2013.06.26 15:04:05 LOG7[10620:10992]: Creating a new thread
2013.06.26 15:04:05 LOG7[10620:10992]: New thread created
2013.06.26 15:04:05 LOG7[10620:11904]: Service [smtps] started
2013.06.26 15:04:05 LOG5[10620:11904]: Service [smtps] accepted connection
from 192.168.1.2:2953
2013.06.26 15:04:05 LOG6[10620:11904]: connect_blocking: connecting
74.125.130.109:465
2013.06.26 15:04:05 LOG7[10620:11904]: connect_blocking: s_poll_wait
74.125.130.109:465: waiting 10 seconds
2013.06.26 15:04:06 LOG5[10620:11904]: connect_blocking: connected
74.125.130.109:465
2013.06.26 15:04:06 LOG5[10620:11904]: Service [smtps] connected remote
server from 192.168.1.31:53647
2013.06.26 15:04:06 LOG7[10620:11904]: Remote socket (FD=368) initialized
2013.06.26 15:04:06 LOG7[10620:11904]: SNI: sending servername:
smtp.gmail.com
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): before/connect
initialization
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 write
client hello A
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 read
server hello A
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 read
finished A
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 write
change cipher spec A
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 write
finished A
2013.06.26 15:04:06 LOG7[10620:11904]: SSL state (connect): SSLv3 flush data
2013.06.26 15:04:06 LOG7[10620:11904]: 1 items in the session cache
2013.06.26 15:04:06 LOG7[10620:11904]: 8 client connects (SSL_connect())
2013.06.26 15:04:06 LOG7[10620:11904]: 8 client connects that finished
2013.06.26 15:04:06 LOG7[10620:11904]: 0 client renegotiations requested
2013.06.26 15:04:06 LOG7[10620:11904]: 0 server connects (SSL_accept())
2013.06.26 15:04:06 LOG7[10620:11904]: 0 server connects that finished
2013.06.26 15:04:06 LOG7[10620:11904]: 0 server renegotiations requested
2013.06.26 15:04:06 LOG7[10620:11904]: 7 session cache hits
2013.06.26 15:04:06 LOG7[10620:11904]: 0 external session cache hits
2013.06.26 15:04:06 LOG7[10620:11904]: 0 session cache misses
2013.06.26 15:04:06 LOG7[10620:11904]: 0 session cache timeouts
2013.06.26 15:04:06 LOG6[10620:11904]: SSL connected: previous session
reused
2013.06.26 15:04:06 LOG6[10620:11904]: SSL socket closed (SSL_read)
2013.06.26 15:04:06 LOG7[10620:11904]: Sent socket write shutdown
2013.06.26 15:04:06 LOG5[10620:11904]: Connection closed: 65 byte(s) sent to
SSL, 290 byte(s) sent to socket
2013.06.26 15:04:06 LOG7[10620:11904]: Remote socket (FD=368) closed
2013.06.26 15:04:06 LOG7[10620:11904]: Local socket (FD=372) closed
2013.06.26 15:04:06 LOG7[10620:11904]: Service [smtps] finished (0 left)
From: Stephen Gates [mailto:[email protected]]
Sent: Wednesday, June 26, 2013 2:25 PM
To: 'stunnel-users(a)stunnel.org'
Subject: Sending Email from PLC Without Authentication with gmail
A customer needs to send emails from a Programmable Logic Controller (PLC)
which cannot provide authentication. The customer's email server is gmail
which obviously requires authentication.
The PLC IP is 192.168.1.2 and the PC IP on which stunnel is installed is
192.168.1.31
My config is:
cert = stunnel.pem
[smtps]
client = yes
accept = 25
connect = smtp.gmail.com:465
The PLC is set up to send emails to the IP of the PC 192.168.1.31
When I try to send emails I get the following in the stunnel log:
2013.06.26 14:26:30 LOG5[12384:13048]: Service [smtps] accepted connection
from 192.168.1.2:2938
2013.06.26 14:26:30 LOG5[12384:13048]: connect_blocking: connected
74.125.130.108:465
2013.06.26 14:26:30 LOG5[12384:13048]: Service [smtps] connected remote
server from 192.168.1.31:53599
Any help would be greatly appreciated!
Stephen Gates
Harold K. Scholz Company
7800 Serum Avenue
Ralston, NE 68127
402-339-7600
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