Using WebDAV with ARR
Application Request Routing (ARR) is a great solution for load balancing and other proxying needs. I’m a big fan and have written often about it.
I had someone ask me this week about WebDAV support for ARR. With his ARR setup, he noted that WebDAV creation, uploads, and downloads worked well, but renaming and moving files did not. He aptly noticed in the IIS logs that the source IP address showed as being from the ARR server rather than from the original user.
Here’s what the IIS log recorded:
2013-01-28 10:36:20 10.11.12.13 MOVE /Documents/test https://domain.com/Documents/test 80 User 10.9.8.7 Microsoft-WebDAV-MiniRedir/6.1.7601 400 1 0 31
So for anyone working with WebDAV and ARR and it doesn’t work for you, it’s likely that ARRHelper needs to be installed on the web servers.
You can find ARRHelper here, and if interested, I have a short video explaining what it is and why it’s important.