On passwords, securtiy and real -sweat, blook and tears- life

[Bob Goodwin]

Markku Kolkka wrote:
> A.J. Bonnema kirjoitti viestissään (lähetysaika sunnuntai, 30. 
> huhtikuuta 2006 09:30):
>   
>> AFAIK my firewall has all ports closed for both TCP and UDP.
>> However, I have no means of checking that this is true.
>> Through the site "Shields Up" (www.grc.com) I have been able
>> to check that *some* UDP ports are closed (windows related),
>> but that is no surprise as I run FC5 and the Windows machines
>> are currently not connected.
>>     
>
> There are many other security scanning services on the Net with 
> more advanced capabilities than grc.com, e.g:
>
> Security Space (registration needed):
> https://secure1.securityspace.com/smysecure/basic_index.html
> PC Flank Advanced Port Scanner:
> http://www.pcflank.com/scanner1.htm
> DSLReports Port Scan (requires Java browser plug-in):
> http://www.dslreports.com/scan
>
>   
I have been adjusting firestarter for several days to no avail.  I like 
it because when I have a problem it often lists something as blocked 
rather than having to test by stopping the firewall completely.  
Presently I have the FC-5 default firewall and Firestarter enabled but 
when I go to GRC Shileds Up it displays a field of red, indicating 1056 
open ports.  I know this is not the case since I have to open ports to 
make sftp, ssh, etc. work?

I assume it is the Netgear "wireless" router responding to their test?  
Now I just ran PC Flank of which I was unaware until you mentioned it 
and it shows only port 80 open.  Any suggestions welcome ...

Bob Goodwin    Zuni, Virginia   w2bod
  	Port: 		Status 	    	Service 	    	Description
  	21 	  	stealthed 	    	FTP 	    	File Transfer Protocol is used to 
transfer files between computers
  	23 	  	stealthed 	    	TELNET 	    	Telnet is used to remotely create 
a shell (dos prompt)
  	135 	  	stealthed 	    	RPC 	    	Remote Procedure Call (RPC) is used 
in client/server applications based on MS Windows operating systems
  	137 	  	stealthed 	    	NETBIOS Name Service 	    	NetBios is used to 
share files through your Network Neighborhood
  	138 	  	stealthed 	    	NETBIOS Datagram Service 	    	NetBios is 
used to share files through your Network Neighborhood
  	139 	  	stealthed 	    	NETBIOS Session Service 	    	NetBios is used 
to share files through your Network Neighborhood
  	1080 	  	stealthed 	    	SOCKS PROXY 	    	Socks Proxy is an internet 
proxy service
  	1243 	  	stealthed 	    	SubSeven 	    	SubSeven is one of the most 
widespread trojans
  	3128 	  	stealthed 	    	Masters Paradise and RingZero 	    	Trojan 
horses
  	12345 	  	stealthed 	    	NetBus 	    	NetBus is one of the most 
widespread trojans
  	12348 	  	stealthed 	    	BioNet 	    	BioNet is one of the most 
widespread trojan
  	27374 	  	stealthed 	    	SubSeven 	    	SubSeven is one of the most 
widespread trojans
  	31337 	  	stealthed 	    	Back Orifice 	    	Back Orifice is one of 
the most widespread trojans
  	80 	  	open 	    	HTTP 	    	HTTP web services publish web pages