Category Blocked, one site in Whitelist

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Category Blocked, one site in Whitelist

L1 Bithead

Hi There,

i my specific example i blocked the category Online-storage and Backup but white-listed www.slideshare.net. But apparently slideshare.net looks like crap. I guess it's because of restrictions fromthe category but not pretty sure.

The site seems to have problems with CSS cause i can see the content, but without any style. Anybody of you experiencing the same issue or can give me a hint? Honestly I'm a bit stuck here right now, any idea what i can do would be great.

Thanks in advance,

Kai

12 REPLIES 12

L5 Sessionator

MFB123

Could you try that website in Chrome (or Firefox) then go to More tools > Developer Tools (Click on Network tab).

Now click on Network, refresh the page and see what elements are not being loaded (those will be in red).

L4 Transporter

As mentioned before, if the site is whitelisted, then it will not be blocked. I don't believe this is an issue with the URL filtering profile, but possible something else.

I would be curious to see if the firewall is dropping anything, since you mentioned that the website loads correctly if you bypass the firewall.

I would setup filters under 'Monitor > Packet Captures' along with turning filtering and capturing on. While you are doing this, reference the filters, generate traffic, and run the following command twice. (Once to zero out all the flags, and once again to show you any changes since the last time you ran this command. Zero it out by running twice, then generate some traffic that will match the filters you specified.)

'show counter global filter packet-filter yes delta yes'

If there are any drops, it should trigger a flag and tell you why.

You can also look at the session info to verify a few other things.

'show session all filter source x.x.x.x destination x.x.x.x' (can use a combination of filters for this command)

Find the session ID then run:

'show session id #####'

This may help determine if the Firewall is dropping anything, but it doesn't appear to be an issue with the URL filtering profile.

Let us know,

Thanks!

L7 Applicator

Often times web pages fetch content from other websites to compose a full web page.

Your URL filtering may be stripping out content.

You can see if this is the case with the "Log container page only" checkbox on the URL Filtering profile. Uncheck it, so you will begin logging on the URL filtering logs, if you're filtering sub-webpages from the same site.

Since this option will generate a lot of logging for every webpage that needs URL Filtering actions, it is recommended to be unchecked only for troubleshooting purposes, so leave it checked when you're done troubleshooting.

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