On 12/1/10 2:46 PM, Tracy Pearson wrote: > Michael Madigan wrote on 2010-12-01: >> If I have VPN set up between offices and I turn off Port 80 on the >> router to the outside world but leave the VPN tunnel alone, I should >> still be able to use HTTP to the VPN site, correct? >> > > Michael, > > HTTP is port 80, if you shut that off, it's all off.
If you shut off port 80, browsing the web and interacting with other services over port 80 are disabled. But depending on what you want to do, it isn't "all off". You could still ssh (port 22) email (25, 143, etc.) and secure http (https, port 443). > Linux has IPTABLES. I've never used them myself. iptables is the Linux kernel firewall. > Routers sometimes allow a list of sites someone can reach. Depends on the > router it's either a block list or a toggle of one type of the other. > > HTTPS is port 81, which might be what you're thinking about. Port 443 is https. Michael, at least with iptables on linux you can indeed shut down port 80 over the WAN interface, while keeping it open over the VPN interface. I believe other routers/firewalls would act similarly. Paul _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[email protected] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
