IMSLP Forums

Hello
I am the systems administrator at a school. Some of the music teachers who download files from this site have started reporting that they can no longer download files. I have traced this to an interaction between our web filtering software (Sophos WS1000 web appliance) and the way in which your website delivers its file links.

In short the problem is that while most pages on the site are delivered with http://imslp.org as the root of the address line, many download links are delivered with the root http://216.129.110.22/. This is the address of http://javanese.kjsl.com. In common with best practise web filtering, we block access to direct IP address web pages, since these can be used by students for a range of nefarious or unwanted activities (such as accessing proxies and utilising bandwidth hogging services such as Skype).

It would be best from our perspective (and most likely those of many others) if the web server served URLs with resolvable names rather than direct IPs.

Regards
Andrew Chapman

Actually the reason we are using the IP address is because Norton blocks javanese.kjsl.com due to some bogus reason (there was a bug thread about this a few weeks ago). We can try to find a way around this, i.e. by associating the IP with another domain, however, I cannot specify when this will be resolved.

If possible, as an interm solution I would suggest that the IP address be whitelisted by your web filtering software as an exception, since the IP address is used only for IMSLP downloads.

Hmm, I was going to say that the entirely unrecommendable yet not cheap Sophos WS1000 applies its IP restrictions in a blanket manner and does not allow effective white listing of IP addresses in this way, but it seems it does now. My previous attempts on other direct IP sites have failed, but works now for yours.

Possibly Sophos have upgraded the thing recently. I will look into it.

My apologies for this red herring.

No problem. Improving music education is one of IMSLP's main goals, so if you have any further problems please feel free to tell us.