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Full Discussion: Regex to match Exact port number (netstat command)
Top Forums UNIX for Advanced & Expert Users Regex to match Exact port number (netstat command) Post 302925167 by sk2code on Friday 14th of November 2014 10:44:05 AM
Old 11-14-2014
Regex to match Exact port number (netstat command)
Hi All,

We have this regex:\\*.*?(.600[0-9]).*?.(LISTEN|ESTABLISHED)

OS = Solaris 10

The purpose of this regex is to match the ports in output of "netstat -an" and report if any ports between 6000-6009 are getting used. The only problem is if I have something like this (sample output as mentioned below), the regex matches everything with 6000 in it. It matches 46000, 60006 and 6000. Because of that we are getting faulty alerts. How can we fix this to just ONLY pick up ports (6000-6009). Please help.
Code:
10.10.10.10.2055    10.10.4.10.60006    49552      0 49552      0 ESTABLISHED
10.10.10.10.6360    10.10.4.10.6000    65290      0 49640      0 LISTEN
10.10.10.10.2044    10.10.4.10.46000    49552      0 49552      0 ESTABLISHED

Last edited by Corona688; 11-14-2014 at 01:48 PM..
 

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LEARN ABOUT X11R4

inet_type

inet_type(4)                                                       File Formats                                                       inet_type(4)

NAME

       inet_type - default Internet protocol type

SYNOPSIS

       /etc/default/inet_type

DESCRIPTION

       The inet_type file defines the default IP protocol to use. Currently this file is only used by the ifconfig(1M) and netstat(1M) commands.

       The  inet_type  file  can  contain  a  number of <variable>=<value> lines. Currently, the only variable defined is DEFAULT_IP, which can be
       assigned a value of IP_VERSION4, IP_VERSION6, or BOTH.

       The output displayed by the ifconfig and netstat commands can be controlled by the value of DEFAULT_IP set in inet_type file.  By  default,
       both commands display the IPv4 and IPv6 information available on the system. The user can choose to suppress display of IPv6 information by
       setting the value of DEFAULT_IP.  The following shows the possible values for DEFAULT_IP and the resulting ifconfig and netstat output that
       will be displayed:

       IP_VERSION4     Displays only IPv4 related information. The output displayed is backward compatible with older versions of the ifconfig(1M)
                       and netstat(1M) commands.

       IP_VERSION6     Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       BOTH            Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       The command-line options to the ifconfig and netstat commands override the effect of DEFAULT_IP as set in the inet_type file. For  example,
       even if the value of DEFAULT_IP is IP_VERSION4, the command

       example% ifconfig -a6

       will display all IPv6 interfaces.

EXAMPLES

       Example 1: Suppressing IPv6 Related Output

       This is what the inet_type file must contain if you want to suppress IPv6 related output:

       DEFAULT_IP=IP_VERSION4

SEE ALSO

       ifconfig(1M), netstat(1M)

SunOS 5.10                                                          16 Jun 1999                                                       inet_type(4)
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