Re: netstat output

2002-06-11 Thread Javier Fernández-Sanguino Peña
On Mon, Jun 10, 2002 at 01:17:02PM -0400, James wrote:
 I use:  netstat -vat | grep LISTEN
 
 That will tell you everything that is really listening on your server.
 
Not really, IIRC it will not show you udp servers.
You might want to check Tiger's test: check_listeningprocs
Code snippet:

$NETSTAT -ptuan | $GREP -v STREAM |
while read type x y local remote listen proc
do
...
done

type: udp or tcp
proc: includes pid and listening process name
local: includes socket number and address


Regards


Javi


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Re: netstat output

2002-06-11 Thread Bart-Jan Vrielink
On Tue, 2002-06-11 at 11:39, Javier Fernández-Sanguino Peña wrote:
 On Mon, Jun 10, 2002 at 01:17:02PM -0400, James wrote:
  I use:  netstat -vat | grep LISTEN
  
  That will tell you everything that is really listening on your server.
  
   Not really, IIRC it will not show you udp servers.
   You might want to check Tiger's test: check_listeningprocs
   Code snippet:
 
 $NETSTAT -ptuan | $GREP -v STREAM |

As a native dutch speaker I find it very easy to remember 'netstat
-tulpen':
-t: tcp
-u: udp
-l: show only listening sockets
-p: show pid and program using the socket
-e: display aditional information.
-n: numeric output

This gives you all the information you want, without the need to grep
the output.

-- 
Tot ziens,

Bart-Jan


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Re: netstat output

2002-06-11 Thread Javier Fernández-Sanguino Peña
On Tue, Jun 11, 2002 at 11:57:34AM +0200, Bart-Jan Vrielink wrote:
 
 As a native dutch speaker I find it very easy to remember 'netstat
 -tulpen':
 -t: tcp
 -u: udp
 -l: show only listening sockets
 -p: show pid and program using the socket
 -e: display aditional information.
 -n: numeric output
 
 This gives you all the information you want, without the need to grep
 the output.

Nice, will check and (probably) modify the tiger script.

Javi


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Re: netstat output

2002-06-10 Thread Michael Scott Shappe

Ryan J Goss wrote:

When I do a netstat -an, how do I properly decipher the output?  To me it
looks like a lot of ports are listening, is there a way to determine what
daemon is running on those ports?


netstat -anp will tell you which processes.
lsof -i :port will tell you more specifically who (e.g. lsof -i :25)

If you don't have lsof installed...get it. It's good for you.

Mike Shappe





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RE: netstat output

2002-06-10 Thread James
I use:  netstat -vat | grep LISTEN

That will tell you everything that is really listening on your server.

You should be able to use lsof to find out what is actually listening
on those ports.

- James

 -Original Message-
 From: Ryan J Goss [mailto:[EMAIL PROTECTED] 
 Sent: Monday, June 10, 2002 1:04 PM
 To: Debian security mailing list
 Subject: netstat output
 
 
 When I do a netstat -an, how do I properly decipher the 
 output?  To me it looks like a lot of ports are listening, is 
 there a way to determine what daemon is running on those ports?
 
 --Ryan Goss [EMAIL PROTECTED]
 Systems Staff
 
 Counting in octal is just like counting in decimal--if you 
 don't use your thumbs.
 -- Tom Lehrer
 
 
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Re: netstat output

2002-06-10 Thread vdongen
Do netstat -anp as root instead, it gives process pid and name
-Original Message-
From: Ryan J Goss [EMAIL PROTECTED]
Date: Mon, 10 Jun 2002 12:04:03 -0500 (CDT)
Subject: netstat output

 When I do a netstat -an, how do I properly decipher the output?  To
 me it
 looks like a lot of ports are listening, is there a way to determine
 what
 daemon is running on those ports?
 
 --Ryan Goss [EMAIL PROTECTED]
 Systems Staff
 
 Counting in octal is just like counting in decimal--if you don't use
 your thumbs.
 -- Tom Lehrer
 
 
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 To UNSUBSCRIBE, email to [EMAIL PROTECTED]
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