Who can scan my ports?

  • Thread starter Thread starter Morgan Ohlson
  • Start date Start date
M

Morgan Ohlson

My www connection is IC.

Can anyone reach my ports... or is there some connection needed trough a
site and beyond the browser?


Morgan O.
 
From: "Morgan Ohlson" <[email protected]>

|
| My www connection is IC.
|
| Can anyone reach my ports... or is there some connection needed trough a
| site and beyond the browser?
|
| Morgan O.


What is IC ?
 
From: "Morgan Ohlson" <[email protected]>

|
| My www connection is IC.
|
| Can anyone reach my ports... or is there some connection needed trough a
| site and beyond the browser?
|
| Morgan O.


What is IC ?
Click to expand...

Internet cable ... which means I'm basicly online all the time.

Morgan O.
 
From: "Morgan Ohlson" <[email protected]>

|
| My www connection is IC.
|
| Can anyone reach my ports... or is there some connection needed trough a
| site and beyond the browser?
|
| Morgan O.


What is IC ?
Click to expand...

My question is more of how others can reach my ports? I have no server
applications.

Can anyone reach the ports only by knowing my IP, or is there ather things
that set limits for it?


Morgan O.
 
My question is more of how others can reach my ports? I have no server
applications.

Can anyone reach the ports only by knowing my IP, or is there ather things
that set limits for it?
Click to expand...

Your IP number doesn't have to be known. Internet worms and hackers
scan blocks of numbers looking for potential targets. A unprotected PC
usually takes hits in just a matter of minutes nowdays.

A default Windows install will have internet services running that
result in open ports. Windows XP has a firewall that blocks incoming
attempts. But the firewall is only active by default with Service Pack
2. Otherwise you have to enable it yourself:

http://support.microsoft.com/kb/283673

It's possible to disable all Windows internet services and close all
ports. But many users have more than one PC, and they set up a
Local Area Network (LAN) for file and printer sharing. The associated
ports for this are open by default on Windows. Users protect
such arrangements usually by means of a firewall .... often by a
external router/firewall.

Art

http://home.epix.net/~artnpeg
 
From: "Morgan Ohlson" <[email protected]>


|
| Internet cable ... which means I'm basicly online all the time.
|
| Morgan O.

Get a Cbale/DSL Router such as the Linksys BEFSR41.

Specifically block both TCP and UDP ports 135 ~ 139 and 445 on the Router
Disable all administration of the Router form the WAN side
Disable WAN requests (such as pings)

When you do this, your computers on the LAN side will be safe from Hackers and internet
worms. If you were to do a Port Scan such as from; http://www.broadbandreports.com/scan
no ports will be seen as "open" and from the POV of the internet, nobody will even know you
exist behind the WAN address.
 
Your IP number doesn't have to be known. Internet worms and hackers
scan blocks of numbers looking for potential targets. A unprotected PC
usually takes hits in just a matter of minutes nowdays.
Click to expand...

So, here we can note 2 groups.

A) Trying to penetrate 1 speciall target.

B) Looking for any, easy or preffered target.
A default Windows install will have internet services running that
result in open ports. Windows XP has a firewall that blocks incoming
attempts. But the firewall is only active by default with Service Pack
2. Otherwise you have to enable it yourself:

http://support.microsoft.com/kb/283673

It's possible to disable all Windows internet services and close all
ports. But many users have more than one PC, and they set up a
Local Area Network (LAN) for file and printer sharing. The associated
ports for this are open by default on Windows. Users protect
such arrangements usually by means of a firewall .... often by a
external router/firewall.
Click to expand...

Last weekend I had trouble keeping the soft firewall up. At 3 or 4 occations
I found the Firewall prog in the (alt+ctrl+del) running programs noted with:
No answer.

I have not seen that before, maybe some time but now it happened ~4 times in
2 days.

How difficoult is it to penetrate a softw firewall?

Morgan O.
 
From: "Morgan Ohlson" <[email protected]>


|
| Last weekend I had trouble keeping the soft firewall up. At 3 or 4 occations
| I found the Firewall prog in the (alt+ctrl+del) running programs noted with:
| No answer.
|
| I have not seen that before, maybe some time but now it happened ~4 times in
| 2 days.
|
| How difficoult is it to penetrate a softw firewall?
|
| Morgan O.

Why not ask in a FireWall News Group ?
 
How difficoult is it to penetrate a softw firewall?
Click to expand...

Home users have little to be concerned with. I used to simply close
all ports and not bother with a firewall. Never had a problem in many
years of being on line all day with DSL service. Dedicated hackers who
"have your number", so to speak, are unlikely to bother with you since
it requires time and effort on their part.

Outbound is a different matter. If you use one of the sw firewalls
with outbound app attempt alerting, remember that they are easy
to bypass or disable via malicious code you've allowed to run on your
PC. In fact, antivirus and other protection software can be and
sometimes is disabled by malware.

Art

http://home.epix.net/~artnpeg
Free antivirus:
http://www.ik-cs.com/programs/virtools/KASFX.EXE
http://www.claymania.com/KASFX.EXE
http://tinyurl.com/azzkc
 
Home users have little to be concerned with. I used to simply close
all ports and not bother with a firewall. Never had a problem in many
years of being on line all day with DSL service. Dedicated hackers who
"have your number", so to speak, are unlikely to bother with you since
it requires time and effort on their part.
Click to expand...

Homo sapiens is not by nature 100% good, unfortunately.

And, I guess that some are more targeted then others. Luck isn't really
distributed fairly.


Morgan O.
 
Back
Top