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Full Discussion: how to monitor ports
Operating Systems Solaris how to monitor ports Post 302121045 by mhm4 on Monday 11th of June 2007 11:35:10 AM
Old 06-11-2007
how to monitor ports

I run into this issue occasionally and just looking for suggestions on how others solved it. I would like to monitor ports on a large number of systems and would like to determine which systems are listening on specific ports. I know there are heavy-weight apps that provide this such as HP ovo but I am looking for some light-weight open source options. I believe a syn scan will be sufficient for my purpose but I have not used any tools previously or not sure if their is a way to use default system tools or commands for this. Also for the those that have used syn scanning, does anyone run into issues due to simulating a syn attack in any of your networks?

Before you relpy, please do not recommend ping as it does not provide the functionality that I am looking for. Also, telnet will not provide this functionality because I do not what to have to script any break out or termination sequences for various connections (ie sendmail - port 25).
 

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OCF_PACEMAKER_PINGD(7)					      Pacemaker Configuration					    OCF_PACEMAKER_PINGD(7)

NAME
ocf_pacemaker_pingd - pingd resource agent SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_user=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_set=string] [OCF_RESKEY_name=string] [OCF_RESKEY_section=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_interval=integer] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] pingd [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This agent (ocf:pacemaker:pingd) has been replaced by the more reliable ocf:pacemaker:ping. It records (in the CIB) the current number of ping nodes (specified in the 'host_list' parameter) a cluster node can connect to. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/var/run//pingd-default] PID file OCF_RESKEY_user = string [root] The user we want to run pingd as The user we want to run pingd as OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_set = string [] Set name The name of the instance_attributes set to place the value in. Rarely needs to be specified. OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_section = string [] Section name The section place the value in. Rarely needs to be specified. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_interval = integer [1] ping interval in seconds How often, in seconds, to check for node liveliness OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to pingd. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 07/05/2010 OCF_PACEMAKER_PINGD(7)
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