Get Used Port List Post: 302468003

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Top Forums Shell Programming and Scripting Get Used Port List Post 302468003 by rbatte1 on Monday 1st of November 2010 08:50:01 AM

11-01-2010

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Glad it helped, but I must wonder why you're looking. Not that I need to know, but if there is a good reason to be trying to trace where things are coming in from, there is a free tool called lsof (originally LiSt Open Files) that is good for this sort of thing. See

HTML Code:

http://uk.ask.com/wiki/Lsof

for a pointer on that.

I have used it when I have found a remote oracle process chewing up CPU. The first thing I would do is

Code:

lsof -o -p $suspect_process

... and it lists out the open files and TCP/IP ports. You can see (like netstat output) where the other end of the connection is. That helped track many things down, but some were started on the local machine but directed as thgouh they were remote, so the next trick was (knowning the oracle port was 1521)

Code:

lsof -i tcp:$source_port

and putting in the opposing port to 1521. That would return the process I started with and the source process of the TCP connection. it may be an iterative process, but it's great for tracing. Of course, it's real-time, so if the connection closes before you finish, you lose it.

Robin

rbatte1

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LEARN ABOUT SUSE

installsieve

INSTALLSIEVE(1) 					      General Commands Manual						   INSTALLSIEVE(1)

 *

NAME

       installsieve - user utility for managing sieve scripts

SYNOPSIS

       installsieve

DESCRIPTION

       installsieve is a utility that allows users to manage their sieve scripts kept on the server.

OPTIONS

       -v <name> View script with the given name. The script if retrieved sucessfully is output to standard output.

       -l  List  all  of  the scripts currently on the server. If one of the scripts is active a arrow is printed indicating that it is the active
       script.

       -p <port> Port to connect to. If left off this defaults to "sieve" as defined in /etc/services.

       -i <file> Install a file onto the server. If a script with the same name already exists on the server it is overwritten.  Upon  sucessfully
       putting	the  script on the server the script is set active. If <file> has the extension .script it is chopped when put on the server since
       sieve names may not contain a '.'.

       -a <name> Set <name> as the active script. The list of available names can be obtained from the '-l' option..

       -d <name> Delete the sieve script on the server with <name>.

       -m <mechanism> Force installsieve to use <mechanism> for authentication. If not specified the strongest authentication mechanism is chosen.

       -g <name> Get the sieve script with <name> and save it to disk with a ".script" extension. If a file with that name already  exists  it	is
       overwritten.

       -u <user> Userid/Authname to use for authentication; by default, the current user.

CMU
								   Project Cyrus						   INSTALLSIEVE(1)