?
Solved

503 Proxy Is Busy on IIS6

Posted on 2008-10-30
3
Medium Priority
?
1,144 Views
Last Modified: 2009-03-13
Hi i have a SBS 2003 SP2 server running ISA 2000 and IIS 6.

Everything has been running absolutely fine up until yesterday when all of a sudden, we get the 503 - Proxy Is Busy error when trying to access the default website.

I have checked in the following Logfiles for any kind of hint as to what may be happening

%SystemDir%\system32\LogFiles\HTTPERR\httperrxx.log
\W3SVC1\EXxxx.log
%SystemDir%\system32\LogFiles\W3SVC4\EXxxx.log

I have recently had to apply a fix to the server because ActiveSync had broken because a hotfix caused the server to grab the Exchange push port during boot up, this is now resolved. HOwever a day later this occurred and i can't help wondering if tehre is a butterfly effect here.



0
Comment
Question by:Andy_1205
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 

Author Comment

by:Andy_1205
ID: 22849143
As an addition:

I have rolled back the changes made due to the scvtivesync issue and removed the ports it demand i use, and its made no difference.

The strange thing is that when i reboot the server, the page loads fine for 10 minutes, but then just stops with the Proxy is busy error.

Is there any way i can check to see where these concurrent connections are that its having problems with?
0
 
LVL 77

Accepted Solution

by:
Rob Williams earned 2000 total points
ID: 22861517
Might you have installed Microsoft patches KB951746 and/or KB951748 (DNS patches) ? Though I haven't seen this particular error, there are issues with services and ports being blocked on SBS (especially w/ ISA) after their install. Susan Bradly has written a good article outlining the work around by manually adding the necessary ports within the registry, if it appears to apply.
http://blogs.technet.com/sbs/archive/2008/07/25/new-kb-articles-released-concerning-issues-around-dns-security-update-953230-ms08-037.aspx
0

Featured Post

Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

What is an ISAPI filter?   •      It's an assembly (.dll file) that can add or change the way IIS works.   •      They can be enabled globally for your web server or on a site-by-site basis.   When the IIS server receives a request, enabling the ISAPI fi…
As tax season makes its return, so does the increase in cyber crime and tax refund phishing that comes with it
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question