May need to be altered to allow the full object to download when the client software disconnects. Only after this verification succeeds open updating to all other machines through the proxy. Preventing Early or Frequent Replacement Once you have done the above to cache updates you encounter the problem that some software often forces a full object reload instead of revalidation.
Which pushes the cached content out and fetches new objects very frequently. I decided to test this idea out in my squid proxy, along with one or 2 other ideas the other ideas failed hopelessly but the WU caching worked like a charm. Each of the downloaded objects are added to the cache, and then whenever a request arrives indicating the cache copy must not be used it gets converted to an if-modified-since check instead of a new copy reload request.
It'll hand out the Windows updates, and will keep them stored in the squid cache. Why does it go so slowly through Squid? The work-around used by many cache maintainers has been to set the above config and force Squid to fetch the whole object when a range request goes through.
Compounding the problem and ironically causing some slowdowns is the fact that some of the Microsoft servers may be telling your Squid not to store the archive file. This means that Squid will pull the entire archive every time it needs any small piece.
Another symptoms which occasionally appear when attempting to force caching of windows updates is service packs. That clients following requests will often timeout waiting for Squid to re-download the whole object from the start. Which naturally causes the problem to repeat on following restart attempts. I'm sure most of us have spare parts, but why would someone want to build and manage another machine that adds will add more electicity and heat to the equation when there is a perfectly good webcache on an existing pfsense that is capable of accomplishing the same end result?
Joined Oct 10, Messages 5, Did you set up transparent proxy, otherwise you need to do registry hacks to have windows update use the proxy. The end result wouldn't be the same.
Additionally, I think managing squid caching windows updates would be more bothersome. Doing it right is always better than doing it cheap and easy. Joined Jan 5, Messages Much better solution in the long run. Set it up on a VM. Joined Nov 6, Messages 2, How well does this actually work? I kept this for about 2 weeks before deciding to scrap the project, this was not a huge client base though but about computers a day running Windows Update.
Well, from my point of view based on my experience and most "issues" reported trying to cache WU it's kinda like using a hammer to fasten a screw instead of a screwdriver. Untangle uses Polipo instead of Squid but seems to have the same issues that I had when trying to use Squid. I set it up about a year ago and at that time it seemed to work pretty well with Windows XP machines. I haven't followed up with it, but with automatic updates on machines you would figure if it wasn't working you would see the bandwidth saturated at certain times, which it doesn't.
It certainly caches the definitions for Microsoft Security Essentials and when I do manual updates on a machine it downloads way faster than if it was going over the internet connection. You must log in or register to reply here. Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled i. Cause in my squid 2. Need help fast? Netgate Global Support! Something else to watch out for, I just double checked mine and I have no newlines in it, so it's all one line, with statements separated by semicolons, so it looks like this:.
Not sure what might be going on there, but that is unrelated to this thread.
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