Difference between revisions of "Help:Firewalling"

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'''Firewalling out Off Campus Connections'''
#REDIRECT [[Firewalling]]
 
Due to the restrictions and threats of disconnections by ITS on campus, it is worth thinking about blocking all external connections to DC++ on campus.  This does NOT guarantee safety from ITS on campus, but it will stop you using any external bandwidth and hopefully keep you a bit more under the radar.
Almost all the time, connections between on campus and off campus people are impossible due to the traffic shaper, so even without any kind of firewall rules in place you should not be transferring to or from somebody off campus. However, the connection attempts will be detected, logged and subsequently blocked by the traffic shaper even if you do not see any transfers in DC++ (although sometimes connections slip through the traffic shaper causing even more problems for you).
 
 
Firewalling off campus out is intended as an extra layer of security, and does cannot guarantee you safety from ITS. We do believe that is is by far the best thing you can do though and recommend it to everybody.
 
 
Guides for blocking blocking external connections to DC++ in various firewalls and operating systems are below.  If you are looking for a quick and easy firewall to block connections, then we recommend one of Comodo, Sygate or Kerio as these are light on system resources and are unlikely to interfere with your computer as a whole.
 
 
NB.  Firewalls listed under Windows Vista will work for Windows XP as well with the exception of the Vista firewall itself.
 
=Windows Vista=  Unless otherwise stated, the following firewalls will work on Windows Vista/XP/2000
 
 
==[http://www.twofo.co.uk/resources/vista.htm Windows (Vista) Firewall 32bit]==  [http://www.twofo.co.uk/resources/vista.htm (32 bit guide produced by Rampage)]
 
This only applies to the '''Vista''' firewall, and '''DOES NOT''' work on XP.
 
First you will most likely need to disable any DC++ rules in the firewall, then you can either run the commands above, or get the install.bat file below which will run them all at once.  So all you need to do is download the scripts right click on the appropriate one and 'run as Administrator'.
 
Also ensure that the DC++ executable file is located at '''"C:\Program Files\DC++\DCPlusPlus.exe"'''. If this is not the case the commands/scripts have to be modified accordingly.
 
[http://www.twofo.co.uk/resources/vista_install.bat 32 bit Install Firewall Rules]
 
[http://www.twofo.co.uk/resources/vista_uninstall.bat 32 bit Uninstall Firewall Rules]
 
Please ask one of the Operators to test that the firewall is working.
 
==[http://www.twofo.co.uk/resources/vista-64.htm Windows (Vista) Firewall 64bit]==  [http://www.twofo.co.uk/resources/vista-64.htm (64 bit guide produced by Slinky)]
 
Identical procedure to the 32 bit version, however slightly different rules to account for the different installation directory for the 64 bit version of Vista, specifically '''"C:\Program Files (x86)\DC++\DCPlusPlus.exe"'''.  If you have installed DC++ to a directory other than this you will need to input the rules manually from the guide, obviously changing the path where appropriate.
 
[http://www.twofo.co.uk/resources/vista_install-64.bat 64 bit Install Firewall Rules]
 
[http://www.twofo.co.uk/resources/vista_uninstall-64.bat 64 bit Uninstall Firewall Rules]
 
==[http://www.twofo.co.uk/resources/Comodo3.pdf Comodo Personal Firewall 3]== [http://www.twofo.co.uk/resources/Comodo3.pdf (guide produced by Rampage)]
 
'''Free firewall'''<br>
Version 3 is Windows Vista compatible
 
There is also a guide available for Comodo Personal Firewall Version 2.4 [http://www.twofo.co.uk/resources/Comodo.pdf here].<br>
You can download Comodo Personal firewall from http://personalfirewall.comodo.com.
 
==[http://www.twofo.co.uk/resources/ESS.pdf Eset Smart Security (NOD32)]==
[http://www.twofo.co.uk/resources/ESS.pdf (guide produced by Rampage)]
 
Windows Vista compatible, please ask on the hub for someone to test it for you. Guide Needs testing, if you find it is up to scratch please contact astropoint or Rampage and this will be finalised. If something needs editing please contact Rampage.
 
==[http://www.twofo.co.uk/resources/Kaspersky.pdf Kaspersky v7]==
[http://www.twofo.co.uk/resources/Kaspersky.pdf (guide produced by astropoint)]
 
Kaspersky v8 (2009) seem to have removed alot of the functionality of v7 in regards to specific blocking of applications to certain IP ranges as is required on campus.  If anybody can work out how to do it on the newer versions please tell an op and we can try to knock together a guide.
 
==[http://www.twofo.co.uk/resources/CAPF.pdf CA Personal Firewall]==  [http://www.twofo.co.uk/resources/CAPF.pdf (guide produced by Rampage)]
 
Some people seem to have trouble running this firewall on vista.  Try Comodo if you experience issues
 
==[http://www.twofo.co.uk/resources/jeticoguide.rar Jetico Personal Firewall]==  [http://www.twofo.co.uk/resources/jeticoguide.rar (guide produced by itsmonktastic)]
 
Expert firewall
 
==[http://www.twofo.co.uk/resources/Norton.pdf Norton Personal Firewall]==    [http://www.twofo.co.uk/resources/Norton.pdf (guide produced by astropoint)]
 
Guide was produced for Norton 2005, but the basic structure of the rules etc hasn't changed so should be applicable to more recent versions.
 
==[http://www.twofo.co.uk/resources/Mcafee.pdf McAfee]==  [http://www.twofo.co.uk/resources/Mcafee.pdf (guide produced by 2448-1111)]
 
''Warning:'' This puts the whole of the Resnet into the firewall's "Trusted Zone" which is a really bad idea on the whole.  So if somebody comes up with a way of allowing IPs JUST to DC++, pm astro/astropoint and I'll try to update the guide.
 
=Windows XP=  Unless otherwise stated, the following firewalls will work on Windows XP/2000.  Note that almost all Vista compatible firewalls also work on XP so check above in case your firewall is listed there
 
 
==[http://www.twofo.co.uk/resources/SPF.htm Sygate Personal Firewall]== [http://www.twofo.co.uk/resources/SPF.htm (guide produced by fallingmagpie)]
 
'''Free (ish) Firewall''' Is shareware, but the required components continue to work after the trial license expires.
 
Works on Windows XP or below only.  Free shareware, continues to work after license runs out.  Downloadable from http://www.download.com/Sygate-Personal-Firewall/3000-2092_4-10049526.html.
(NB. Now owned by Symantec so this is the latest version now available)
 
==[http://www.twofo.co.uk/resources/tdifw.zip TDIFW]==  [http://www.twofo.co.uk/resources/tdifw.zip (guide produced by astropoint & Rampage)]
 
'''Free Firewall'''
 
This is a quick and easy way to get a foolproof firewall set up.
 
To block connections to Off campus users you must ensure the following:
 
Your DC++ application should be '''C:\Program Files\DC++\DCPlusPlus.exe'''. This is the default location when you install DC++.
 
Now download the preconfigured TDIFW from the http://www.twofo.co.uk/resources/tdifw.zip , unzip the contents onto your '''C:''' drive, run the file ''''install'''' and restart your computer. That is all you need! Please check with an Operator to confirm whether the firewall is working. (When Off Campus you can just uninstall the firewall from the unzipped folder in C drive or disable the service.)
 
==[http://www.twofo.co.uk/resources/Kerio2.pdf Sunbelt (Kerio)]==  [http://www.twofo.co.uk/resources/Kerio2.pdf (guide produced by astropoint)]
 
'''Free (ish) Firewall''' Is shareware, but the required components continue to work after the trial license expires.
 
This is '''NOT''' the Kerio WinRoute Firewall<br>
Windows XP and below only<br>
Download from http://www.vnunet.com/vnunet/downloads/2128767/kerio-personal-firewall
 
==[http://www.twofo.co.uk/resources/ZoneAlarm2.pdf ZoneAlarm]==  [http://www.twofo.co.uk/resources/ZoneAlarm2.pdf (guide produced by Huck)]
 
This is '''NOT''' the free version of the firewall.  As far as we know the free version of the firewall cannot block external connections properly.  However this is as yet untested on the vista compatible version (7.1)
 
==[http://www.twofo.co.uk/resources/Tiny.pdf Tiny]==  [http://www.twofo.co.uk/resources/Tiny.pdf (guide produced by Rampage)]
 
==Windows XP Firewall==
 
It is not possible to use the Windows XP firewall to properly block external connections to DC++ as far as we know.  Please choose one of the above firewalls instead.
 
=Linux=
 
==[http://www.twofo.co.uk/resources/iptables.htm IPTables]==
[http://www.twofo.co.uk/resources/iptables.htm (guide)]
 
A guide for setting up the Linux firewall, iptables, to block external connections.  (produced by xyzzy originally. Resurrected by mooo)
 
=Mac=
 
==[http://www.twofo.co.uk/resources/ipfw.htm IPFW]==  [http://www.twofo.co.uk/resources/ipfw.htm (guide produced by Rampage)]
 
A guide for setting up the Mac OS Firewall, ipfw, to block external connections. (Needs testing)
 
Confirm with an Operator to check that it is working.
 
 
 
 
If you want to do this from scratch, you need to find how to get your firewall to only allow Resnet IPs (137.205.0.0 - 137.205.254.254 or 137.205.0.0/16 or 137.205.0.0/255.255.0.0) and the loopback address for stunnel (127.0.0.1) and blocking all other IPs from connection.  Conversely you could allow all IPs then block 0.0.0.0 - 126.254.254.254, 127.0.0.2 - 137.204.254.254 and 137.206.0.0 - 254.254.254.254 specifically.
 
Also, if you do this on a firewall not listed here then please contact an op with at least a basic set of instructions to be uploaded here.
 
 
 
 
If there are any other problems any of the guides themselves, please contact astropoint/astro on the hub or on the forums and I shall try to correct them.
Or, if you feel you can produce a guide for any other firewall, please do so and pass it onto me and I shall upload it onto here.

Latest revision as of 21:03, 29 October 2008

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