Last night, I encountered a strange problem. I updated a website on my virtual SBS 2003 Premium server and then viewed the website. The content updates did not come through. I deleted the website from IIS. When I viewed the website, the old content was still there. Searched the local drives on the SBS server and could not find any of the old content.
Then I realized, ISA must be caching the information. Did a google search on "ISA caching website" and the first hit was ISA Server 2004 FAQ: Caching which mentioned "reverse caching", and some vague instructions on how to create a rule to disable it. Apparantly, ISA does the same thing caching forward and reverse. I turned off caching in ISA, recreated the website in IIS and everything is fine now.
Caching configuration in ISA, especially reverse caching, is an important quality of its security and performance qualities. Since I'm not using the forward caching, I could disable it completely, but that will not always be the case. Thus, I have another "learn to" on my task list - "learn to configure reverse caching on ISA"
Thanks, Michael, for helping me troubleshoot the problem.
ISA - Internet Security and Acceleration
IIS - Internet Information Service
SBS - Small Business Server
CALYPTIX Still Rocks, in case there was any doubt.
10 years ago
No comments:
Post a Comment