+ Post New Thread
Results 1 to 7 of 7
Windows Thread, Where to put ISPs Proxy in ISA 2004 in Technical; We are using an ISA 2004 server and all the XP clients use it as the proxy in IE. The ...
  1. #1
    eejit's Avatar
    Join Date
    Jun 2005
    Location
    Ireland
    Posts
    606
    Thank Post
    52
    Thanked 12 Times in 12 Posts
    Rep Power
    23

    Where to put ISPs Proxy in ISA 2004

    We are using an ISA 2004 server and all the XP clients use it as the proxy in IE. The logs show that almost 100% of the requests are passed directly out to the internet though - the ISA's cache is not used at all (perhaps 1 request a day)
    I think it is due to the fact that we are using the Web Chaining feature to point requests at the LEA's proxy server upstream.

    What is the proper way to set up the ISA with an ISP's proxy (which cannot be bypassed, by the way)

    Cheers!

  2. #2
    mrforgetful's Avatar
    Join Date
    May 2006
    Posts
    1,639
    Thank Post
    7
    Thanked 15 Times in 15 Posts
    Rep Power
    23

    Re: Where to put ISPs Proxy in ISA 2004

    How's your chaining rule set up?

    On my ISA server the Web Chaining Default Rule is set on the Action Tab to redirect them to an Upstream Server, which is the authorities proxy. The To tab is set to apply to All Networks (and localhost).

  3. #3

    Geoff's Avatar
    Join Date
    Jun 2005
    Location
    Fylde, Lancs, UK.
    Posts
    11,819
    Thank Post
    110
    Thanked 588 Times in 509 Posts
    Blog Entries
    1
    Rep Power
    226

    Re: Where to put ISPs Proxy in ISA 2004

    Proxies by default should not cache content that's avalible on another proxy. It's specified in the RFCs. I don't know very much about ISA so I can't say if you can change that behavior. However it's certainly possible to force caching with Squid.

    I don't see why you'd need to cache content that's avalible on your upstream proxy though. There would be little performance improvement for some fairly sizeable storage requirements.

  4. #4
    eejit's Avatar
    Join Date
    Jun 2005
    Location
    Ireland
    Posts
    606
    Thank Post
    52
    Thanked 12 Times in 12 Posts
    Rep Power
    23

    Re: Where to put ISPs Proxy in ISA 2004

    Quote Originally Posted by mrforgetful
    How's your chaining rule set up?

    On my ISA server the Web Chaining Default Rule is set on the Action Tab to redirect them to an Upstream Server, which is the authorities proxy. The To tab is set to apply to All Networks (and localhost).
    Yep, that's exactly how mine is set. Do your reports look the same as mine then?

  5. #5
    eejit's Avatar
    Join Date
    Jun 2005
    Location
    Ireland
    Posts
    606
    Thank Post
    52
    Thanked 12 Times in 12 Posts
    Rep Power
    23

    Re: Where to put ISPs Proxy in ISA 2004

    Quote Originally Posted by Geoff
    Proxies by default should not cache content that's avalible on another proxy. It's specified in the RFCs. I don't know very much about ISA so I can't say if you can change that behavior. However it's certainly possible to force caching with Squid.

    I don't see why you'd need to cache content that's avalible on your upstream proxy though. There would be little performance improvement for some fairly sizeable storage requirements.
    Cheers Geoff. Our Internet is pretty flaky at the moment, so caching on site would be a great help until the borough get things sorted. I'd much prefer to not use the borough's cache at all but that doesn't appear to be an option. I presume that MS will follow the RFC you mentioned, so yes, that must the reason that our cache is not working.

  6. #6

    Geoff's Avatar
    Join Date
    Jun 2005
    Location
    Fylde, Lancs, UK.
    Posts
    11,819
    Thank Post
    110
    Thanked 588 Times in 509 Posts
    Blog Entries
    1
    Rep Power
    226

    Re: Where to put ISPs Proxy in ISA 2004

    I presume that MS will follow the RFC
    Wonders will never cease.

  7. #7
    mrforgetful's Avatar
    Join Date
    May 2006
    Posts
    1,639
    Thank Post
    7
    Thanked 15 Times in 15 Posts
    Rep Power
    23

    Re: Where to put ISPs Proxy in ISA 2004

    You can specify when it should use it's cache in the cache rule.

    Create a new one as you can't change all options in the Default rule.

    You can then choose from 3 options of wether to use the cached object or get it from the internet, try setting it to retrieve all objects from cache unless there is no object and then tell it to drop the request hehe.

SHARE:
+ Post New Thread

Similar Threads

  1. ISA 2004 Proxy Block List XML - Importable...
    By rpycroft in forum Windows
    Replies: 3
    Last Post: 8th December 2007, 11:55 AM
  2. ISA 2004
    By Gatt in forum How do you do....it?
    Replies: 25
    Last Post: 18th October 2007, 10:18 AM
  3. Proxy switch "proxy on" & " proxy off" software
    By GavRob in forum Network and Classroom Management
    Replies: 20
    Last Post: 30th July 2007, 10:05 PM
  4. ISA 2004 - Upstream proxy based on user group?
    By Ravening_Wolf in forum Wireless Networks
    Replies: 0
    Last Post: 11th December 2006, 01:48 PM
  5. ISA 2004 SP2 - DO NOT INSTALL!!
    By ZeroHour in forum Windows
    Replies: 6
    Last Post: 11th April 2006, 06:26 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •