Net Send

  • Thread starter Thread starter richardmgreen
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richardmgreen

To be perfectly honest, I'm not the most technically mionded of people
and I don't know if this is the right group for this so apologies to
start with.

OK - question tie :
On Windows XP (not sure about other O/S's) there is a nice little
service called Net Send. This is OK for networks. Is it possible to
have something similar over the internet using an IP address instead of
a machine ID or username?
 
richardmgreen said:
To be perfectly honest, I'm not the most technically mionded of people
and I don't know if this is the right group for this so apologies to
start with.

OK - question tie :
On Windows XP (not sure about other O/S's) there is a nice little
service called Net Send. This is OK for networks. Is it possible to
have something similar over the internet using an IP address instead
of a machine ID or username?
Click to expand...

It is fine for you to post your question here, but you haven't described
clearly enough what you want to do. Normally if you want to chat or
send messages to people outside your local area network, you use an
instant messaging client such as Trillian, AIM, MSN, or Yahoo.

Post back with a better description of what you'd like to do - your end
goal - to get more focused suggestions.

Malke
 
Basically, I want something similar to MSN but without having to sign
up to anything or have to log in every 15-20 minutes.
What I want to do is increase that by sending to an IP address rather
than a specific user/lan ID, without the necessity of downloading/using
external software. I have tried using an IP address on a LAN and it
appears to work, but I don't have an IP address available to confirm
with a friend working for another company on a different LAN.
Any thoughts would be appreciated.
 
richardmgreen said:
Basically, I want something similar to MSN but without having to sign
up to anything or have to log in every 15-20 minutes.
What I want to do is increase that by sending to an IP address rather
than a specific user/lan ID, without the necessity of
downloading/using
external software. I have tried using an IP address on a LAN and it
appears to work, but I don't have an IP address available to confirm
with a friend working for another company on a different LAN.
Any thoughts would be appreciated.
Click to expand...

Thanks for clarifying. Your friend's computer at work will be behind at
least a router and a firewall. He will have a private IP address
(non-routable and invisible from the Internet) and unless port
forwarding has been set up with the appropriate ports opened in the
corporate firewall and he has a static private IP, you won't be able to
get to him. This is basic and good corporate security.

The reason that Net Send works on a LAN is that all the machines are on
the same subnet. Since you and your friend work for different companies
and are not on a company network connecting various branch offices (WAN
- Wide Area Network), you will need to contact him with an instant
messaging client.

As for logging in "every 15-20 minutes", you have something set up
incorrectly. You didn't say how you connect to the Internet, but here
are some things to check:

1. If you are using dialup, look at the dialup settings and make sure
the connection is set to stay up after a period of inactivity.

2. If you are using broadband and an ethernet adapter and are losing
Internet access, make sure the power management on your NIC is
disabled.

3. If neither #1 or #2 is applicable, look at whatever instant messaging
client you are using for "keep alive" and logon options.

Malke
 
TIP: I use Skype and I'm happy with it.

Let me completely discourage you from doing this.
There are so many spammers on the internet, that in the very moment you open
a way for windows messenger packets to arrive on one computer you will start
receiving SPAM messages every minute. Messenger will listen on a port in
this range: (UDP: 1026-1032) usually 1026, because my firewall blocks most
packets on this port.

HISTORY:
Recently I wanted to see what traffic my firewall was blocking and why are
there most packets arriving on these ports. So I set up a sniffer and waited
a few hours. All packets were Messenger messages. And all looked like this
sample:

[SYSTEM ALERT]
STOP! WINDOWS REQUIRES IMMEDIATE ATTENTION.

Windows has found CRITICAL SYSTEM ERRORS.

To fix the errors please do the following:
1. Download Registry Cleaner from:
[http://] address from where you can download a fake program - most likely
spyware[.com]
2. Install Registry Cleaner
3. Run Registry Cleaner
4. Reboot your computer
FAILURE TO ACT NOW MAY LEAD TO DATA LOSS AND CORRUPTION!
 
TIP: I use Skype and I'm happy with it.

Let me completely discourage you from doing this.
There are so many spammers on the internet, that in the very moment you open
a way for windows messenger packets to arrive on one computer you will start
receiving SPAM messages every minute. Messenger will listen on a port in
this range: (UDP: 1026-1032) usually 1026, because my firewall blocks most
packets on this port.

HISTORY:
Recently I wanted to see what traffic my firewall was blocking and why are
there most packets arriving on these ports. So I set up a sniffer and waited
a few hours. All packets were Messenger messages. And all looked like this
sample:

[SYSTEM ALERT]
STOP! WINDOWS REQUIRES IMMEDIATE ATTENTION.

Windows has found CRITICAL SYSTEM ERRORS.

To fix the errors please do the following:
1. Download Registry Cleaner from:
[http://] address from where you can download a fake program - most likely
spyware[.com]
2. Install Registry Cleaner
3. Run Registry Cleaner
4. Reboot your computer
FAILURE TO ACT NOW MAY LEAD TO DATA LOSS AND CORRUPTION!
Click to expand...

George,

I've looked at the Windows Messenger hack traffic a couple times myself. What's
interesting is that it's coming from a botnet - computers owned (legally) by
other peoples who fell victim to the same shite (and now 0wn3d by the bad guys).
<http://nitecruzrnews.blogspot.com/2006/08/bots-and-you.html>
http://nitecruzrnews.blogspot.com/2006/08/bots-and-you.html
 
To be perfectly honest, I'm not the most technically mionded of people
TIP: I use Skype and I'm happy with it.

Let me completely discourage you from doing this.
There are so many spammers on the internet, that in the very moment you
open
a way for windows messenger packets to arrive on one computer you will
start
receiving SPAM messages every minute. Messenger will listen on a port in
this range: (UDP: 1026-1032) usually 1026, because my firewall blocks most
packets on this port.

HISTORY:
Recently I wanted to see what traffic my firewall was blocking and why are
there most packets arriving on these ports. So I set up a sniffer and
waited
a few hours. All packets were Messenger messages. And all looked like this
sample:

[SYSTEM ALERT]
STOP! WINDOWS REQUIRES IMMEDIATE ATTENTION.

Windows has found CRITICAL SYSTEM ERRORS.

To fix the errors please do the following:
1. Download Registry Cleaner from:
[http://] address from where you can download a fake program - most likely
spyware[.com]
2. Install Registry Cleaner
3. Run Registry Cleaner
4. Reboot your computer
FAILURE TO ACT NOW MAY LEAD TO DATA LOSS AND CORRUPTION!
Click to expand...

George,

I've looked at the Windows Messenger hack traffic a couple times myself.
What's
interesting is that it's coming from a botnet - computers owned (legally)
by
other peoples who fell victim to the same shite (and now 0wn3d by the bad
guys).
<http://nitecruzrnews.blogspot.com/2006/08/bots-and-you.html>
http://nitecruzrnews.blogspot.com/2006/08/bots-and-you.html
Click to expand...

Just to add:
UDP protocol is session-less. This means that computer-1 does not need to
establish a connection to computer-2. No need for valid backward path. So
computer-1 may fake it's IP address. And even if the bad guy uses his/her
own machine to send malicious UDP messages, this is almost impossible to
trace back if the IP address is fake, because the fake source IP means wrong
backward path.
 
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