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HTTP Signatures Mistakenly Blocks Java Apps

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HTTP Signatures Mistakenly Blocks Java Apps - 10.May2006 5:15:46 PM

CyberGuy

Posts: 13
Joined: 24.Oct.2005
Status: offline

I have an HTTP policy rule defined for outbound web traffic that does a signature search in the response body for “http://collect.myspace.com/misc/about.html”. I use this to block myspace.com even if language translators are used to bypass the usually blocks. This works, but I’ve noticed that a lot of Java, not JavaScript, sites fail to load. Actually, no matter what I put in the signature field or what I put for the byte range, those Java sites don’t work. If I disable that particular signature rule, those Java sites do work. Could this be a bug in ISA Server?

Post #: 1

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RE: HTTP Signatures Mistakenly Blocks Java Apps - 11.May2006 2:50:15 PM

markthetech

Posts: 1
Joined: 25.Apr.2006
Status: offline

Hi,

We've just had ISA2004 installed a few days ago and this is one of the problems we are now facing - it seems to be stopping Java from running on our webmail system in particular. Normally we would see the (java based) Inbox full of emails, recently however, we've been getting blank spaces. If we run the non-java based version everything is fine. I'm still looking at the issue and have a couple of leads to try but if anyone has any suggestions it'd be appreciated.

Mark

(in reply to CyberGuy)

Post #: 2

RE: HTTP Signatures Mistakenly Blocks Java Apps - 16.May2006 4:48:50 AM

bop_zw

Posts: 2
Joined: 16.May2006
Status: offline

Hi all

I have got a java problem too.

I have opened http and https but the firewall keeps blocking apps that use Java such as PowerChute which uses Java.exe and Java.awt to authenticate to the UPS when setting up the app on the IAS server. Is there a bug with IAS or is there something I need to configure. I can install the app from another server and if I stop the firewall service in IAS server 2004 I can install the app on the IAS server. Please can help......

Brian

(in reply to markthetech)

Post #: 3

RE: HTTP Signatures Mistakenly Blocks Java Apps - 10.Jan.2008 6:55:31 AM

chris.shaw@Itandt.IT

Posts: 2
Joined: 24.Dec.2007
Status: offline

Did anyone get a fix for this ... I am getting this problem too !

Many Thanks

Chris

(in reply to bop_zw)

Post #: 4

RE: HTTP Signatures Mistakenly Blocks Java Apps - 14.Jan.2008 2:44:03 PM

liridon

Posts: 7
Joined: 13.Jan.2008
Status: offline

hi all,

web proxy clients work only with http, https, ftp

you need to install firewall client software and use that client type for your PCs to work with other apps, like java.exe

(in reply to chris.shaw@Itandt.IT)

Post #: 5