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Access via port 110??

Moderator: boris

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Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Tue May 03, 2005 1:41 pm
Dear Sirs,

I am trying access to POP3 server via TeraTerm.

I hcanged the port# from 23 to 110 and connected to POP3 server by using TELNET protocol. Then I got the message from POP3 Server as follows;

"+OK POP3 server ready"

Then I tried to send a command of "user xxxx", however, TeraTerm Windows does not accept any characters from keyboard.

I also tried with several other TELNET emulator -- HyperTerminal does not work, VaraTerm does not work, PuTTY works, MS-Telnet works.

Does anybody have an idea how to work around with TeraTerm?? How can I interact with POP3 server by using TeraTerm??

Any commants and advice would be appreciated!
Masateru KUWATA
Independent Contractor
Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Wed May 04, 2005 2:25 am
Dear Sirs,

I tested to use TCP socket via port 110 -- just to confirm whether native TCP connection is available or not. It was successfully connected to POP3 Server (through Broadband Router and ISP), so there will be no intermediate device (e.g. firewall) to block this connection.

I also tested the connection by using PuTTY. When PuTTY is launched from the GUI windows, it works. But when it is activated from the command line (DOS level), then it received a first message from POP3 server, but I cannot type any character into POP3 server (same sympton as TeraTerm).

Still MS-Telnet works fine...

I am curious what is the fundamental difference between using port 23 and 110 from teraTerm's point of view (I am expecting that they will be equivalent for TeraTerm??).

Again, any comments and suggestions would be greatly appreciated.
Masateru KUWATA

Independent Contractor

 

Yutaka Hirata
TeraTerm Developer

Posts:
609
Joined: Wed Jan 12, 2005 2:35 pm
by Yutaka Hirata » Fri May 06, 2005 2:23 am
Hi kuwata,

I suggest that you check 'Local echo' on setup dialog(Setup - terminal menu).
Best regards, Yutaka Hirata
(yutakakn at gmail.com)
http://hp.vector.co.jp/authors/VA013320/
Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Fri May 06, 2005 3:38 am
Yutaka,

Thanks for your advice and sorry for not writing all the details of my testing.

I already tested this option. The typed character was echoed back (of course), but it is unlikely for these characters to be sent to POP3 server.
No response from the server on TeraTerm's window.

Beause the test software using TCP Socket (port 110) works fine, I guess that this issue is related to teraTerm rather than my network configuration (broadband router, firewall, NAT, etc...).

This problem(?) is easily replicated -- just to use TeraTerm via port 110 and connect to any POP3 server, you will see the same behavior.

Best regards
Masateru KUWATA

Independent Contractor

 

Yutaka Hirata
TeraTerm Developer

Posts:
609
Joined: Wed Jan 12, 2005 2:35 pm
by Yutaka Hirata » Fri May 06, 2005 2:41 pm
Hi kuwata,

Additionally I suggest that you use 'CR+LF' at transmit new-line in Terminal setup.
I tested on provider POP3 server and it works fine(see below).

+OK InterMail POP3 proxy server ready.
user yutaka
+OK please send PASS command
quit
+OK yutaka InterMail POP3 proxy server signing off.
Best regards, Yutaka Hirata
(yutakakn at gmail.com)
http://hp.vector.co.jp/authors/VA013320/
Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Sat May 07, 2005 5:43 am
Dear Yutaka and all,

Thanks for your kind advice.

I tested with CR+LF as a sending NL code and it seems working with my POP3 server.

Again, thanks all the guy!!
Masateru KUWATA

Independent Contractor

 

Yutaka Hirata
TeraTerm Developer

Posts:
609
Joined: Wed Jan 12, 2005 2:35 pm
by Yutaka Hirata » Sat May 07, 2005 8:11 am
Hi kuwata,

FYI:

POP3 protocol is defined as RFC1939.

http://www.ietf.org/rfc/rfc1939.txt?number=1939

Though it becomes advertising, I wrote POP3 programming report at C-MAGAZINE(softbank publishing). For the reference.

http://www.cmagazine.jp/contents/200403.html
Best regards, Yutaka Hirata
(yutakakn at gmail.com)
http://hp.vector.co.jp/authors/VA013320/
Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Sat May 07, 2005 8:56 am
Yutaka

Thanks for your notice.

I am using TTPMACRO to automate the control of network device.
I have evaluated several scripts including Perl, Expect, PuTTY and others.

Finally, I reached at TeraTerm and TTPMACRO beause of its compactness.

Best regards
:lol:
Masateru KUWATA

Independent Contractor
Masateru KUWATA
Newbie

Posts:
23
Joined: Sat Apr 09, 2005 3:29 pm
by Masateru KUWATA » Mon May 09, 2005 8:58 am
Dear Sirs,

This is just one more additional information for whose who use TTPMACRO to connect to POP3 Server.

1. If you modify Teraterm.ini to change the new-line code to CRLF from CR, then everything works fine. Using "send xxx #13 #10" behaves exactly same as "sendln xxx".

2. However, if you do not modify teraterm.ini and use "send xxx #13 #10" to send out CR+LF, it won't work.

I guess that TTPMACRO will look the string of "send xxx #13 #10" and take "#10" out of string (to be sent) if teraterm.ini defines New-Line as CR.

Again, this is just informative for those who are concerned.
Masateru KUWATA

Independent Contractor
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