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Full Discussion: close tcp port
Top Forums UNIX for Dummies Questions & Answers close tcp port Post 302239750 by raidzero on Wednesday 24th of September 2008 11:10:15 AM
Old 09-24-2008
close tcp port
Hello, I have a service running (ODBC) and every now and then it will hang and I will have to stop and restart the service. The problem is when I stop the service, it indeed stops the service, but netstat reports a tcp port still open with the fin_wait_2 status. Then I must close the client application to allow the service to restart or wait 5 minutes. How do I make it close automatically and not wait for 5 minutes? I thought maybe if I defined the service in /etc/inted.conf as nowait it might help but either that is not how it's done or that just doesn't work that way.

I added this: (copied from another service in the file and adapted it)

tfodbc stream tcp nowait root /usr/local/tsobdc/tfodbc.sh start

It did not break the service, it still works fine. There is also /etc/services. can I add anything to that to define this program as a service and have it so that when it stops running it closes its ports? This is AIX 4.3

Thanks
 

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LEARN ABOUT OPENSOLARIS

services

services(4)							   File Formats 						       services(4)

NAME

       services - Internet services and aliases

SYNOPSIS

       /etc/inet/services

       /etc/services

DESCRIPTION

       The services file  is a local source of information regarding each service available through the Internet. The services file can be used in
       conjunction with or instead of other services sources, including the NIS maps "services.byname" and the NIS+  table  "services."   Programs
       use the getservbyname(3SOCKET) routines to access this information.

       The services file contains an entry for each service. Each entry has the form:

	 service-name	port/protocol	aliases

       service-name	This is the official Internet service name.

       port/protocol	This field is composed of the port number and protocol through which the service is provided, for instance, 512/tcp.

       aliases		This is a list of alternate names by which the service might be requested.

       Fields  can  be separated by any number of SPACE and/or TAB characters. A number sign (#) indicates the beginning of a comment; any charac-
       ters that follow the comment character up to the end of the line are not interpreted by routines which search the file.

       Service names may contain any printable character other than a field delimiter, a NEWLINE, or a comment character.

       Any changes to a port assignment do not affect the actual port registration of the service.

FILES

       /etc/nsswitch.conf    configuration file for name-service switch

SEE ALSO

       getservbyname(3SOCKET), inetd.conf(4), nsswitch.conf(4)

NOTES

       /etc/inet/services is the official SVR4 name of the services file.  The symbolic link /etc/services exists for BSD compatibility.

SunOS 5.11							    12 Oct 2000 						       services(4)
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