• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Want to block HTTP(web) access but not filesharing
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Want to block HTTP(web) access but not filesharing


  • Subject: Re: Want to block HTTP(web) access but not filesharing
  • From: Jens Alfke <email@hidden>
  • Date: Tue, 26 May 2009 10:09:22 -0700


On May 26, 2009, at 6:51 AM, Rahulkumar Tibdewal wrote:

Client and server are in same network but this Server is not acting as an internet gateway for Clients.
However this particular server has power to stop internet access for that particular client.
To do so suppose I will send block internet message on that machine.

There's no way for one computer to block another computer's network access. That would be considered a denial-of-service attack.


You would have to write a program that was installed on the client computer, and when it received a message from the server it would do something to reconfigure the client's network settings to block access.

I have no idea what that something would be, and you haven't given details. What exactly do you want to block? All network protocols or just HTTP? All destinations or just ones outside the local network? Should this apply to just the currently logged-in user or to all users of the machine? Should incoming connections be allowed?

This sounds pretty difficult. It would at least require using root privileges to mess with system configuration settings, and might require a kernel extension. Are you sure you want to get involved in this? I think it would require a real low-level OS X guru.

—Jens

Attachment: smime.p7s
Description: S/MIME cryptographic signature

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Want to block HTTP(web) access but not filesharing (From: Rahulkumar Tibdewal <email@hidden>)
 >Re: Want to block HTTP(web) access but not filesharing (From: Peter Sichel <email@hidden>)
 >RE: Want to block HTTP(web) access but not filesharing (From: Rahulkumar Tibdewal <email@hidden>)

  • Prev by Date: Re: WWAN Support
  • Next by Date: Re: Enable disable packets outgoing on port 80 and 443
  • Previous by thread: Re: Want to block HTTP(web) access but not filesharing
  • Next by thread: Re: Want to block HTTP(web) access but not filesharing
  • Index(es):
    • Date
    • Thread