Just recently I can't make a connection to port 23 telnet from the WAN
side. In my router port 23 is being forwarded to my servers ip. I am not stupid. I know how to configure my router. All my other services are working. When I do a shields up. Probe my ports it shows all my services
as open except port 23 all of a sudden shows up as being stealth. It says
no evidence of a computer blah, blah. can be seen on port 23. But yet in
my router it is forwarded to my servers internal ip and checked just like
the other services showing being open in the probe my ports. People can't connect to via default port 23. When I change the port in the sbbs.ini
file to port 24 I can telent from the wan side. This screws up the other services. I want to be able to use default port 23. The way I understand
it shields up is making conenctionms to my router and checking for open or forwarded services. Media Com claims they don't block ports. I say it is being blocked by the isp. They are so stupid they said call telnet. I'm
like don't you know your protocals. Has anyone else had problems with
port 23? I am running Sysncronet on Gentoo Linux - I tried setting up syncronet on windows just to see if it was my Gentoo box blocking it.
Same affect still being blocked. My lsof -i tcp:23 says port 23 is
listening. It seems like it isn't getting past the router. Thanks for
your help.

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■ Synchronet ■ Play Ground Gentoo (PGG) - Boone, Iowa

Re: Port 23 Being Blocked
By: General Mdk to All on Fri Aug 03 2007 12:05 am

Just recently I can't make a connection to port 23 telnet from the WAN
side. In my router port 23 is being forwarded to my servers ip. I am not stupid. I know how to configure my router. All my other services are working. When I do a shields up. Probe my ports it shows all my services as open except port 23 all of a sudden shows up as being stealth. It says no evidence of a computer blah, blah. can be seen on port 23. But yet in
my router it is forwarded to my servers internal ip and checked just like the other services showing being open in the probe my ports. People can't connect to via default port 23. When I change the port in the sbbs.ini
file to port 24 I can telent from the wan side. This screws up the other services. I want to be able to use default port 23. The way I understand it shields up is making conenctionms to my router and checking for open or forwarded services. Media Com claims they don't block ports. I say it is being blocked by the isp. They are so stupid they said call telnet. I'm like don't you know your protocals. Has anyone else had problems with
port 23? I am running Sysncronet on Gentoo Linux - I tried setting up syncronet on windows just to see if it was my Gentoo box blocking it.
Same affect still being blocked. My lsof -i tcp:23 says port 23 is listening. It seems like it isn't getting past the router. Thanks for
your help.

I agree, it sounds like your ISP is blocking port 23.

BTW, this isn't the correct message area for Synchronet support questions. :-)

digital man (xbox-live: digitlman)

Snapple "Real Fact" #170:
In 1878, the first telephone book ever issued contained only 50 names.
Norco, CA WX: 71.2°F, 63% humidity, 0 mph SE wind, 0.00 inches rain/24hrs

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■ Synchronet ■ Vertrauen ■ Home of Synchronet ■ telnet://vert.synchro.net

Re: Port 23 Being Blocked
By: General Mdk to All on Fri Aug 03 2007 12:05 am

Just recently I can't make a connection to port 23 telnet from the WAN
side. In my router port 23 is being forwarded to my servers ip. I am not stupid. I know how to configure my router. All my other services are working. When I do a shields up. Probe my ports it shows all my services as open except port 23 all of a sudden shows up as being stealth. It says no evidence of a computer blah, blah. can be seen on port 23. But yet in
my router it is forwarded to my servers internal ip and checked just like the other services showing being open in the probe my ports. People can't connect to via default port 23. When I change the port in the sbbs.ini
file to port 24 I can telent from the wan side. This screws up the other services. I want to be able to use default port 23. The way I understand it shields up is making conenctionms to my router and checking for open or forwarded services. Media Com claims they don't block ports. I say it is being blocked by the isp. They are so stupid they said call telnet. I'm like don't you know your protocals. Has anyone else had problems with
port 23? I am running Sysncronet on Gentoo Linux - I tried setting up syncronet on windows just to see if it was my Gentoo box blocking it.
Same affect still being blocked. My lsof -i tcp:23 says port 23 is listening. It seems like it isn't getting past the router. Thanks for
your help.

I'd say odds are your ISP _is_ blocking 23, but check your firewall rules just incase. Try running this from the command line

iptables -L

That will spout all the rules for your kernel's firewall, you can pipe it through grep like so

iptables -L | grep DENY

or

iptables -L | grep telnet

or

iptables -L | grep 23

Check through those and see if 23 is being denied by your kernel.

Beta

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■ Synchronet ■ Linux, the way of the future

Re: Port 23 Being Blocked
By: Beta to General Mdk on Fri Aug 03 2007 06:42 am

port 23? I am running Sysncronet on Gentoo Linux - I tried setting up syncronet on windows just to see if it was my Gentoo box blocking it. Same affect still being blocked. My lsof -i tcp:23 says port 23 is

Ooops, I missed these lines. Ignore my comment, tho someone else may find it useful.

Beta

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■ Synchronet ■ Linux, the way of the future

Re: Port 23 Being Blocked
By: General Mdk to All on Fri Aug 03 2007 00:05:00

Try to telnet to bgdcag.biz on port 23. I am on Mediacom as well (In Carroll, IA so not too far from you) I have the Mediacom Max package (15Mbit down 1Mbit up) and have never had any ports blocked here. I was the first person in Carroll to even get the service from Mediacom and have dealt with a lot of their growth problems.


Barry G. Davis, Jr.
SysOp - BGD Consulting and Graphics
telnet://bgdcag.biz
http://www.bgdcag.biz


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■ Synchronet ■ BGDCAG BBS - bgdcag.biz

Kill synchronet and run netcat to listen on port 23

nc -l -p 23

Then get someone to telnet to your IP address

[nigelreed@wibble ~]$ telnet www.sysadmininc.com 23
Trying 71.164.212.67...
Connected to www.sysadmininc.com (71.164.212.67).
Escape character is '^]'.


On your netcat machine you'll see nothing until someone types on the
telnet side. Once they do you'll get their text once they hit enter.

If they get a connection refused then you know something is blocking, or
you're redirecting. Are you behind a NAT device?

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■ Synchronet ■ Maverick BBS - maverick.bbs.us - Come Visit :)

Re: Port 23 Being Blocked

By: General Mdk to All on Fri Aug 03 2007 00:05:00

Try to telnet to bgdcag.biz on port 23. I am on Mediacom as well (In Carroll, IA so not too far from you) I have the Mediacom Max package (15Mbit down 1Mbit up) and have never had any ports blocked here. I was the first person in Carroll to even get the service from Mediacom and have dealt with a lot of their growth problems.

Barry G. Davis, Jr.
SysOp - BGD Consulting and Graphics
telnet://bgdcag.biz
http://www.bgdcag.biz

---

■ Synchronet ■ BGDCAG BBS - bgdcag.biz

---
■ Synchronet ■ Play Ground Gentoo (PGG) - Boone, Iowa

Re: Port 23 Being Blocked

By: General Mdk to All on Fri Aug 03 2007 00:05:00

Try to telnet to bgdcag.biz on port 23. I am on Mediacom as well (In Carroll, IA so not too far from you) I have the Mediacom Max package (15Mbit down 1Mbit up) and have never had any ports blocked here. I was the first person in Carroll to even get the service from Mediacom and have dealt with a lot of their growth problems.

Barry G. Davis, Jr.
SysOp - BGD Consulting and Graphics
telnet://bgdcag.biz
http://www.bgdcag.biz

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■ Synchronet ■ BGDCAG BBS - bgdcag.biz

I have no Problem getting out. It's the incoming I am having problems with.

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■ Synchronet ■ Play Ground Gentoo (PGG) - Boone, Iowa

Its not making the connection over here.

Phil Taylor

Kill synchronet and run netcat to listen on port 23

nc -l -p 23

Then get someone to telnet to your IP address

[nigelreed@wibble ~]$ telnet www.sysadmininc.com 23
Trying 71.164.212.67...
Connected to www.sysadmininc.com (71.164.212.67).
Escape character is '^]'.

On your netcat machine you'll see nothing until someone types on the telnet side. Once they do you'll get their text once they hit enter.

If they get a connection refused then you know something is blocking, or you're redirecting. Are you behind a NAT device?

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■ Synchronet ■ Maverick BBS - maverick.bbs.us - Come Visit :)

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■ Synchronet ■ bbs.cyberchatnet.com - Vienna, VA