[LBo] Chapter 10

[Rafi Gabzu]

Thanks.
Still , can you refer to the specific remote desktop applications , are they
more vulnerable to attack , even if its only in local LAN ?
Chapter 10 keeps warning from security problems when working with these
applications , but I assumed its not true for local LAN since I do not open
the Router Ports, or may be I'm wrong ...?
Rafi


On 1/21/07, Brice Hunt <shoalcreek5 at gmail.com> wrote:
>
> Rafi Gabzu wrote:
> > Hi ,
> > If I'm working (actually playing..)  with the remote desktop like VNC ,
> > Putty, Xming etc. in my local home network (4xPCs + HUB + Router ) , Am
> I
> > exposed for security problems from external world ?
> > Thanks,
> > Rafi
> I'm supposing that your setup is:
>
> 4xPC's <--> Hub <--> Router <--> Internet.
>
> If this is the case, then whether or not you're exposed probably depends
> mostly on your router's capabilities and configuration.  Many routers
> also provide firewall capabilities.  If it does and if the firewall is
> turned on, then you're probably pretty safe.  Even if your router is
> only doing NAT (Network Address Translation), as long as few or no ports
> are forwarded, then you're still pretty safe against most of the threats
> on the Internet (unless you have a Windows machine with a virus/Trojan
> horse on your network).  NAT does not deter any determined cracker that
> wants into your network, but it does keep most script-kiddies at bay and
> also usually obscures what ports are open on machines so that port scans
> usually won't turn up much.  Do like Sam suggested and run a port-scan
> from a website that does such things.  That will tell you how good your
> router is at hiding your network from the Internet.  If it comes up with
> open ports, then you might want to look into configuring your router
> differently.  If you need to reconfigure your router, you can usually
> find a manual at the router manufacturer's website.  Sometimes, you
> might have to get the manual from the DSL/cable provider (e.g. Qwest
> Communications in the western U.S. provides customers with fairly common
> DSL routers but loads on special firmware to work with their DSL setup
> and so you have to get the router manual from Qwest).
>
> Brice
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