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uk.telecom.broadband (UK broadband) (uk.telecom.broadband) Discussion of broadband services, technology and equipment as provided in the UK. Discussions of specific services based on ADSL, cable modems or other broadband technology are also on-topic. Advertising is not allowed.

Firewall.



 
 
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  #1  
Old August 19th 03, 06:12 PM posted to uk.telecom.broadband
Peter taylor
external usenet poster
 
Posts: 5
Default Firewall.

hi, i currently use a router with NAT setup.

Do i still need to use a firewall aswell?

Thanks

Peter


  #2  
Old August 19th 03, 07:29 PM posted to uk.telecom.broadband
[email protected] writeme.com
external usenet poster
 
Posts: 85
Default Firewall.

On Tue, 19 Aug 2003 18:12:06 +0100, "Peter taylor" wrote:

hi, i currently use a router with NAT setup.

Do i still need to use a firewall aswell?

Yes, for data leaving your machine.

Andrew.
  #3  
Old August 19th 03, 11:12 PM posted to uk.telecom.broadband
markp
external usenet poster
 
Posts: 26
Default Firewall.


"Peter taylor" wrote in message
...
hi, i currently use a router with NAT setup.

Do i still need to use a firewall aswell?

Thanks

Peter



Opinions vary, but if you've got an ADSL modem/router combined it should
really be of the type that has an integral firewall IMO, i.e. one that can
stealth its ports. Many routers out there will not stealth ports, but just
close them - not particulary good for a static IP always on connection. Some
routers can't even close certain ports on the WAN side and rely on
username/password protection intead(!). You could try www.grc.com and
navigate to the Test My Shields section to find out just how open your
current setup is.

If you're really worried about security the best option IMO is to have a
dedicated firewall/NAT machine running something like Linux, with a simple
ethernet ADSL modem configured via a serial link or at best only accessible
from the LAN side, but that's generally OTT for ordinary home users.

Mark.


  #4  
Old August 20th 03, 08:38 AM posted to uk.telecom.broadband
markp
external usenet poster
 
Posts: 26
Default Firewall.


"markp" wrote in message
...

"Peter taylor" wrote in message
...
hi, i currently use a router with NAT setup.

Do i still need to use a firewall aswell?

Thanks

Peter



Opinions vary, but if you've got an ADSL modem/router combined it should
really be of the type that has an integral firewall IMO, i.e. one that can
stealth its ports. Many routers out there will not stealth ports, but just
close them - not particulary good for a static IP always on connection.

Some
routers can't even close certain ports on the WAN side and rely on
username/password protection intead(!). You could try www.grc.com and
navigate to the Test My Shields section to find out just how open your
current setup is.

If you're really worried about security the best option IMO is to have a
dedicated firewall/NAT machine running something like Linux, with a simple
ethernet ADSL modem configured via a serial link or at best only

accessible
from the LAN side, but that's generally OTT for ordinary home users.


Just to add to that it is also a good policy to run an application level
firewall (personal firewall) on each of your client machines, something like
ZoneAlarm or equivalent. That way if a trojan or virus happens to get onto a
client machine it's access to the internet can be monitored and blocked if
necessary.

Mark.


  #5  
Old August 20th 03, 07:22 PM posted to uk.telecom.broadband
Colin Wilson
external usenet poster
 
Posts: 138
Default Firewall.

What I don't understand is why these people (writers/propagators of spyware)
are allowed to distribute spyware.
More worrying are trojans.


Spyware and trojans are similar in nature, in that they often come
bundled with "interesting" looking software.

They are probably distributed with software because the spyware company
will pay a fee to enable them to gather data off the back of other
peoples` hard work.

So yes you still need to use a firewall as well.
eric
(paranoid)


Not paranoid enough by the sounds of it :-}

--
Please add "[newsgroup]" in the subject of any personal replies via email
or you are likely to be spam filtered :-}
  #6  
Old August 22nd 03, 08:09 AM posted to uk.telecom.broadband
[email protected] writeme.com
external usenet poster
 
Posts: 85
Default Firewall.

On Fri, 22 Aug 2003 04:17:31 +0100, "tHatDudeUK"
wrote:

Although a decent AV will detect trojans and stop them....

Except you can never rely on them to be totally up to date, AV
software is always playing catch up, whereas a decent firewall rarely
needs updating.

Andrew.
 




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