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On Saturday 13 September 2008 23:36:13 pk wrote: |
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> Hello, |
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> |
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> I am using shorewall on my local computer (the same I'm surfing the web |
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> with). My skills with iptables are not really good and my understanding |
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> of networking also has some holes in it... However, I'm trying to |
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> prevent firefox from accessing a third party site; I'm logging onto a |
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> site with firefox. With netstat I can see that besides the usual ip |
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> address belonging to the site another ip-address (not belonging to the |
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> original site) shows up. While trying to block the additional ip address |
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> with both "iptables -A INPUT -s xxxx -j DROP" and "iptables -A OUTPUT -d |
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> xxxx -j DROP" it still sends a SYN request to this site. This makes |
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> firefox just sit there waiting for a time-out. How can I prevent firefox |
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> from accessing the other site, while still accessing the original one? |
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That's always going to be problematic. Firefox does not know that you have |
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firewalled that address, so will continue doing exactly what it always did - |
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send a SYN and wait for the response. |
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So you'll need to tell Firefox that that IP is banned, in which case you don't |
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need iptables, you need a Firefox plug-in. Go to mozilla's site and find |
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something appropriate. I'll bet there's one already and it's probably called |
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SiteBlock |
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-- |
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alan dot mckinnon at gmail dot com |
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