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Re: Oracle SQLNET through DSL connection

From: Mark Townsend <markbtownsend_at_attbi.com>
Date: Mon, 04 Nov 2002 03:21:45 GMT
Message-ID: <B9EB27B9.E27%markbtownsend@attbi.com>

I've seen weird stuff like this before, and may have some ideas. As a possible indicator, do you log on to the same domains for both machines ?

I don't know Windows well enough, but if I remember correctly, it may have something to do with differences between PDC's for each machine. So for instance, if I was on the network at work, logged onto the domain at work, the stuff would work. If I came home and worked disconnected, while still logged into the same domain, the lack of a PDC would cause some problems. I can't rember if the problem was either

  1. Came of the network, everything working disconnected, rebooted, logged into now unavailable domain, nothing now works, or
  2. Came of the network, nothing working disconnected, rebooted, logged into now unavailable domain, everything now works

Logging onto the machine locally tended to fix the problem - sound familiar ?

in article i5absuodbpejshofqog27m781q7vcqkunh_at_4ax.com, Chris S at seebelow_at_nowhere.com wrote on 11/3/02 3:00 PM:

> Thanks for the help. I posted more info a little earlier (our posts
> crossed). I tried the 'use_shared_sockets=true' setting, but I put it
> in the registry, not sqlnet.ora. I'll try it in sqlnet.ora. Not only
> did it not solve the problem, it actually made working connections
> fail - maybe more stuff has to be done once you make that setting.
>
> And as I mentioned in my other post, I agree this is firewall now
> (it's the only common component) ... but ... I have two laptops side
> by side, and both are 'similar', but one works the other doesn't (one
> works when dialed up to public network and using vpn). So logic would
> suggest that I should be able to solve this at the client side. There
> is 'something' about this particular laptop image that is killing me.
> I built both images... . My next step is going to be to build a new
> image from scratch, and test the connection at each step along the
> way. The only downside to this is, it's a helluvan image - this is
> our sales demo, with forms client/server; web forms; resin server
> components; a mini mail server; handheld emulators; wireless device
> drivers; etc etc ... rebuilding is a major project! The working
> laptop is 'similar' from an oracle perspective, and from a network
> perspective, but does not have all the bells and whistles the newer
> image has. So probably it's one of the many bells and whistles that's
> killing it. I guess that's what weekends are for ...
>
> Thanks, Chris.
>
> On Sun, 03 Nov 2002 22:34:07 +0100, Sybrand Bakker
> <gooiditweg_at_sybrandb.demon.nl> wrote:
>

>> On Sun, 03 Nov 2002 19:29:17 GMT, Chris S <seebelow_at_nowhere.com>
>> wrote:
>> 
>>> This could indicate (maybe) that our firewall/vpn host is blocking
>>> this traffic, 
>> 
>> 
>> In my experience 12535 *always* point to firewall issues.
>> 
>> Did you set up 
>> use_shared_sockets = true
>> in sqlnet.ora on the server?
>> 
>> If not, the server will open a random port to establish communications
>> with the client.
>> 
>> Other methods to deal with this are
>> - use sqlnet proxy software in the firewall
>> - set up connection manager
>> - set up multithreaded server.
>> 
>> Hth
>> 
>> 
>> Sybrand Bakker, Senior Oracle DBA
>> 
>> To reply remove -verwijderdit from my e-mail address

>
> ===========
> Reply to cschofie at domain dot com
> Change domain to attbi - Thanks
Received on Sun Nov 03 2002 - 21:21:45 CST

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