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Full Discussion: How to clear network socket port 17005?
Operating Systems Solaris How to clear network socket port 17005? Post 302738789 by jim mcnamara on Sunday 2nd of December 2012 08:25:01 PM
Old 12-02-2012
The suggestions I have may make it better, however you cannot get rid of some wait states and still have tcp configured correctly. I am assuming it goes to TIME_WAIT.

This is a programming error - which you cannot fix. Most times programs call setsockopt() with SO_REUSEADDR so that if the program is forced to exit then the socket can be reused right away.

What you can do is to check a TCP parameter, especially if you really are waiting one half hour. You should only have to wait 4 minutes or so.
As root:

Code:
ndd -get  /dev/tcp time_wait_interval

You should get a value like 60000 (60 seconds = 60 x 1000 for this parameter).
If it is 60000 the problem lies elsewhere. Or I misunderstood what you asked.
Do NOT go below 60000.

If it is a larger number set it to 60 seconds:
Code:
ndd -set /dev/tcp tcp_time_wait_interval 60000

I am assuming this socket goes into TIME_WAIT, which lasts 2 * MSL (Max segment lifetime), we tune that with the tcp_time_wait_interval. So, I am assuming the TIME_WAIT interval TCP setting is bonked.

If the socket persists in LISTEN (not TIME_WAIT), a thread somewhere still has the socket open. You can find the pid with script below. Issue a kill command (NOT kill -9)
Code:
kill <pid>

, the socket should show TIME_WAIT and be gone in 2 minutes or so.

Run this as root:
Code:
#!/bin/ksh
pids=$(/usr/bin/ps -ef | sed 1d | awk '{print $2}')

if [ $# -eq 0 ]; then
   read ans?"Enter port you would like to know pid for: "
else
   ans=$1
fi

for f in $pids
do
   /usr/proc/bin/pfiles $f 2>/dev/null | /usr/xpg4/bin/grep -q "port: $ans"
   if [ $? -eq 0 ]; then
      echo "Port: $ans is being used by PID:\c $f"      
   fi
done

If this does not work you can consider restarting network services, but this has the almost same effect on users and programs as rebooting.

Get back to us if this doesn't help.
 

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LEARN ABOUT X11R4

ndd

ndd(1M)                                                   System Administration Commands                                                   ndd(1M)

NAME

       ndd - get and set driver configuration parameters

SYNOPSIS

       ndd [-set] driver parameter [value]

DESCRIPTION

       ndd  gets  and  sets  selected configuration parameters in some kernel drivers. Currently, ndd only supports the drivers that implement the
       TCP/IP Internet protocol family.  Each driver chooses which parameters to make visible using  ndd.   Since  these  parameters  are  usually
       tightly coupled to the implementation, they are likely to change from release to release. Some parameters may be read-only.

       If the -set option is omitted, ndd queries the named driver, retrieves the value associated with the specified parameter, and prints it. If
       the -set option is given, ndd passes value, which must be specified, down to the named driver which assigns it to the named parameter.

       By convention, drivers that support ndd also support a special read-only parameter named ``?'' which can be used  to  list  the  parameters
       supported by the driver.

EXAMPLES

       Example 1: Getting Parameters Supported By The TCP Driver

       To see which parameters are supported by the TCP driver, use the following command:

       example% ndd /dev/tcp ?

       The parameter name ``?'' may need to be escaped with a backslash to prevent its being interpreted as a shell meta character.

       The following command sets the value of the parameter ip_forwarding in the dual stack IP driver to zero. This disables IPv4 packet forward-
       ing.

       example% ndd -set /dev/ip ip_forwarding 0

       Similarly, in order to disable IPv6 packet forwarding, the value of parameter ip6_forwarding

       example% ndd -set /dev/ip ip6_forwarding 0

       To view the current IPv4 forwarding table, use the following command:

       example% ndd /dev/ip ipv4_ire_status

       To view the current IPv6 forwarding table, use the following command:

       example% ndd /dev/ip ipv6_ire_status

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       nca(1), ioctl(2), attributes(5), arp(7P), ip(7P), ip6(7P), tcp(7P), udp(7P)

NOTES

       The parameters supported by each driver may change from release to release.  Like programs that read  /dev/kmem,  user  programs  or  shell
       scripts that execute ndd should be prepared for parameter names to change.

       The  ioctl()  command  that ndd uses to communicate with drivers is likely to change in a future release. User programs should avoid making
       dependencies on it.

       The meanings of many ndd parameters make sense only if you understand how the driver is implemented.

SunOS 5.10                                                          8 Nov 1999                                                             ndd(1M)
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