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network blocking

Posted on 2014-04-17
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Last Modified: 2014-04-25
at work, the network people have things setup so that to access the internet through IE or Firefox, you have to be authenticated to the network by joining your computer to the domain, and logging in with an authenticated user's account.
we need to have a computer that is a message board and need it to run the messages all the time.  I can see our OU's with a description of policies like log off time, and lock times, and none of the OU's have what we need.
In a different environment, I would just create an OU and set the policies to meet our needs. However, In my environment, it's a huge chore to have something like this done, and I can't create OU's and don't have access to make policies.
So I thought I could setup a win7 pc, and not join the domain, so that we don't have to contend with a bunch of policies, this works, however, the message board has a feature to stream things like stocks, or show the current temperature - which should be blocked. however i noticed that i can ping www.yahoo.com, but can't go there through IE for example.
So I thought this would mean that internet traffic is blocked at the upper end of the network layer but not at a lower layer. if that is correct, would there be a way to have the RSS feed of the stocks still work?
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Question by:JeffBeall
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by:bigeven2002
ID: 40007297
Hello,
This may be a shot in the dark, but if you join the win7 PC to domain, you can still log into it as local user which should skip group policy.  Then run IE as a domain admin by right clicking the icon and choose run as different user, then enter the domain user credentials.
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Assisted Solution

by:tmoore1962
tmoore1962 earned 668 total points
ID: 40007304
If it uses IE explorer you could try installing ad block plus from ad block plus.org
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by:bigeven2002
ID: 40007307
Sorry I meant domain user, not domain admin.
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by:bigeven2002
bigeven2002 earned 664 total points
ID: 40007318
Also, in regard to your RSS feed, I believe most go through port 80 which is standard but some communicate through port 7780 as well.  So on your Cisco firewall, outbound communication should be allowed for both ports, which it sounds like it already is given that domain users can access.
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Rich Rumble earned 668 total points
ID: 40007607
You are able to have non-domain joined PC's access the web, but only domain joined PC's get blocked? Do you have to provide credentials to get through the proxies when not domain joined?

If they use WCCP then RSS and html/xml in general (no matter what port) can be captured and processed by the proxy. WCCP works by looking at the traffic itself, and NOT based solely on port#
http://www.cisco.com/c/en/us/td/docs/ios/12_2/configfun/configuration/guide/ffun_c/fcf018.html#wp1000955

No matter what you need to work within your companies policies and chain of command. We cannot help you setup rogue and potentially unauthorized services. You need to escalate your requests and get proper approvals.
We all have the same kinds of head-aches, they exist in all companies I've been to.
-rich
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Author Closing Comment

by:JeffBeall
ID: 40023318
I wasn't trying to get around security for malicious reasons. I just need a pc that will run an employee information power point.
Anyhow, thank you for the help.
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