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Full Discussion: How to kill a TCP connection which has status TIME_WAIT & no PID
Operating Systems Linux Red Hat How to kill a TCP connection which has status TIME_WAIT & no PID Post 302432494 by Davinder31may on Friday 25th of June 2010 06:30:51 AM
Old 06-25-2010
How to kill a TCP connection which has status TIME_WAIT & no PID
Hi,

I want to kill TCP connections which have status as TIME_WAIT & no PID

(as per the output of the "netstat - p" command).

Is there any command/utility available to kill connections to a specific port or IP address.

The problem is that these connections don't have process ID (see below).
====================================================================
Code:
[remedy@CNDAUNREDBOP13 ~]$ netstat -p |grep 56000
tcp        0      0 CNDAUNREDBOP13:59388        10.5.45.39:56000            TIME_WAIT   -
tcp        0      0 CNDAUNREDBOP13:59389        10.5.45.39:56000            TIME_WAIT   -
tcp        0      0 CNDAUNREDBOP13:59390        10.5.45.39:56000            TIME_WAIT   -
tcp        0      0 CNDAUNREDBOP13:59385        10.5.45.39:56000            TIME_WAIT   -
tcp        0      0 CNDAUNREDBOP13:59386        10.5.45.39:56000            TIME_WAIT   -
tcp        0      0 CNDAUNREDBOP13:59411        10.5.45.39:56000            TIME_WAIT   -

How to kill a TCP connection which has status TIME_WAIT & no PID-netstat-timersjpg
Last edited by pludi; 06-25-2010 at 08:05 AM.. Reason: code tags please
 

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LEARN ABOUT OPENSOLARIS

tcp.h

tcp.h(3HEAD)							      Headers							      tcp.h(3HEAD)

NAME

       tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP)

SYNOPSIS

       #include <netinet/tcp.h>

DESCRIPTION

       The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level:

       TCP_NODELAY    Avoid coalescing of small segments.

       The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with
       getsockopt().

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5)

SunOS 5.11							    10 Sep 2004 						      tcp.h(3HEAD)
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