op - Open ports on a system

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Hello, I have a number of Solaris 8 Sun servers that have open ports that I cannot identify. I see some with 1012-1020 (which are reserved ports according to the IANA. Lsof does not identify these. One server has all these on and one server just has 1017. *.1023 ...

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Hello, i need a script (bash type maybe?..), which would check open ports on 127.0.0.1 and then compare open ports with "registered/allowed" port list and try to kill the program who uses unregistered ports. It would be great that script would be started lets say every 5 or 10 minutes. You see i...

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/* Linux Slackware */ Nmap shows the following ports open on the gateway. 21/tcp ftp 22/tcp ssh 23/tcp telnet 25/tcp smtp 37/tcp time 80/tcp http 113/tcp auth 515/tcp printer 587/tcp submission 1024/tcp kdm 6000/tcp x11 ------------------------------- i would like to close as...

LEARN ABOUT DEBIAN

sockstat

SOCKSTAT(1)						    BSD General Commands Manual 					       SOCKSTAT(1)

NAME

     sockstat -- list open sockets

SYNOPSIS

     sockstat [-clh] [-p ports] [-P pid|process] [-U uid|user] [-G gid|group]

DESCRIPTION

     The sockstat command lists open Internet or UNIX domain sockets.

     The following options are available:

     -c 	 Show connected sockets.

     -l 	 Show listening sockets.

     -h 	 Show a usage summary.

     -p ports	 Only show Internet sockets if either the local or foreign port number is on the specified list.  The ports argument is a comma-
		 separated list of port numbers and ranges specified as first and last port separated by a dash.

     -P pid|process
		 Only show sockets of the specified pid|process.  The pid|process argument is a process name or pid.

     -U uid|user
		 Only show sockets of the specified uid|user.  The uid|user argument is a username or uid.

     -G gid|group
		 Only show sockets of the specified gid|group.	The gid|group argument is a groupname or gid.

     If neither -c or -l is specified, sockstat will list both listening and connected sockets.

     The information listed for each socket is:

     USER	      The user who owns the socket.

     COMMAND	      The command which holds the socket.

     PID	      The process ID of the command which holds the socket.

     FD 	      The file descriptor number of the socket.

     PROTO	      The transport protocol associated with the socket for Internet sockets, or the type of socket (stream or datagram) for UNIX
		      sockets.

     LOCAL ADDRESS    For Internet sockets, this is the address the local end of the socket is bound to (see getsockname(2)).  For bound UNIX
		      sockets, it is the socket's filename.  For other UNIX sockets, it is a right arrow followed by the endpoint's filename, or
		      ``??'' if the endpoint could not be determined.

     FOREIGN ADDRESS  (Internet sockets only) The address the foreign end of the socket is bound to (see getpeername(2)).

SEE ALSO

     netstat(1), protocols(5)

HISTORY

     The sockstat command appeared in FreeBSD 3.1.

AUTHORS

     The sockstat command and this manual page were written by Dag-Erling Smorgrav <des@FreeBSD.org>.

     The sockstat command was ported to Linux by William Pitcock <nenolod@nenolod.net>.

BSD
								   May 18, 2008 							       BSD

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