I've been live-blogging the conference with DominoBlog but no one knows. Why? Because port 1352 is blocked. That's too bad as many of us here at the conference use Lotus Notes.

I wish Notes had a built-in tunneling mechanism to failover to port 80.

Next time, I plan to setup a VPN link.

Discussion/Comments (15):

Lotus Notes blocked at Pepperdine University Business Campus

Notes does support SOCKS and HTTP tunnel proxies, but you have to configure it in a location document.

Posted at 9/12/2008 4:25:39 AM by Richard Schwartz


Lotus Notes blocked at Pepperdine University Business Campus

@Rich - not for NRPC access to a server, it doesn't.

Posted at 9/12/2008 5:01:47 AM by Chris Linfoot


Lotus Notes blocked at Pepperdine University Business Campus

@Chris: Yes it does. I use SOCKS almost every day to get out from behind a corporate firewall to reach my servers at home and on DDN. 1352 is blocked if I don't switch locations to one with the correct proxy config.

From the Domino Admin help database, under the rather unfortunate title "Using a Domino passthru server as a proxy", take note of this paragraph:

"A Notes client or Domino server can also be a proxy client and interoperate with either passthru (NRPC protocol only) or as a SOCKS or HTTP tunnel client (for NRPC, POP3, LDAP, IMAP, and SMTP protocols). You set this up in the Proxy setting in the client Location document."

Posted at 9/12/2008 4:04:54 PM by Richard Schwartz


re: Lotus Notes blocked at Pepperdine University Business Campus

Hi Richard, would you have a few min to talk by phone or Skype about this?

Posted at 9/12/2008 4:10:48 PM by Eric Mack


Lotus Notes blocked at Pepperdine University Business Campus

Responded by email.

Posted at 9/12/2008 4:28:43 PM by Richard Schwartz


Lotus Notes blocked at Pepperdine University Business Campus

@Rich - Well, yes. I regularly access two Domino servers outside of my office network by going through a SOCKS proxy too, but the proxy is not there to solve a problem with TCP/IP port connectivity. It is there only to provide a route as there is no direct route from the Inside zone of my network to the Outside zone.

I (perhaps mistakenly) took Eric's post to mean that outbound access to port 1352 was blocked. If that were the case, then no amount of SOCKS proxies would help. You can't tunnel NRPC through other protocols, like HTTP, so you'd be stuck.

Posted at 9/15/2008 2:10:51 AM by Chris Linfoot


Lotus Notes blocked at Pepperdine University Business Campus

@Chris: There's no difference, as far as Notes is concerned, between there being no route and port 1352 being blocked for your particular IP. Obviously, if port 1352 is blocked for the proxy, you're going to be out of luck, but that's not normally going to be the case.

Posted at 9/15/2008 5:27:12 PM by Richard Schwartz


Lotus Notes blocked at Pepperdine University Business Campus

The VPN that Eric is planning to use obviously will work, however would throwing up a passthru server that has the NRPC port changed to 80 and specifying it on your pass through connection docs do the trick as well?

Posted at 9/17/2008 5:04:46 PM by Chris Gleeson


re: Lotus Notes blocked at Pepperdine University Business Campus

I don't think the passthrough server would work unless I used a different protocol on each side. e.g. in on port 80 TCP and out to the other server on another protocol (e.g. SPX). Not sure you can have different ports for TCP on same box in Notes.,

No matter. I'm going the VPN route.

Posted at 9/19/2008 3:48:51 PM by Eric Mack


Lotus Notes blocked at Pepperdine University Business Campus

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