Agentless Vs Agent based

[chethan.mnc at wipro.com]

Hi Kevin,

Thanks a lot for the valuable information. 

Are there any different documents for Agentless Nagios setup and Agent based nagios setup? Please let me know. 


Thanks & Regards,
 
Chethan M N,
Sr Engineer - EMS
--------------------------------------------------------------------------------
Wipro Ltd
Electronic City, Bangalore.
Mob: +91-9886555387 | Dir: +91-080-30299658   
Email: chethan.mnc at wipro.com 
Website: http://www.wipro.com 
Go Green
 Save a Tree - Please consider the environment before printing this email

-----Original Message-----
From: Kevin Keane [mailto:subscription at kkeane.com] 
Sent: Thursday, June 04, 2009 11:45 AM
Cc: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] Agentless Vs Agent based

There is no such thing as "better" here - else everybody would just be 
using that method.

The difference is simply that agent-based Nagios monitoring requires 
that you install software on the client, while agentless monitoring 
allows you to monitor the computer from afar using SNMP, WMI and the 
like. Because an agent runs on the computer itself, it can access quite 
a bit of data that may not be available remotely - but at the same time, 
the agent is more intrusive and requires more configuration.

It is not unusual to use both methods at the same time, actually.

Also, you have different security considerations for agentless vs. 
agent-based monitoring. Agentless monitoring requires that you enable 
SNMP, WMI, and/or other remote-access technologies. Agent-based 
monitoring requires that you put additional software (the agent) onto 
the monitored computer, and usually that software has to run as root or 
administrator or local system or a similar account with high 
permissions. Every time you add software to a computer, you also add 
potential exploits.

chethan.mnc at wipro.com wrote:
>
>  
>
> Dear Experts,
>
>  
>
> What are the differences and advantages b/w agentless nagios setup and 
> agent based (NRPE, NSCclient) Nagios monitoring.
>
>  
>
> Please help me in understanding which is better to go with Agentless 
> or Agent based.
>
>  
>
> Please Help.
>
>  
>
>  
>
> *Thanks & Regards,*
>
>  
>
> *Chethan M N,*
> Sr Engineer - EMS
>

-- 
Kevin Keane
Owner
The NetTech
Find the Uncommon: Expert Solutions for a Network You Never Have to Think About

Office: 866-642-7116
http://www.4nettech.com

This e-mail and attachments, if any, may contain confidential and/or proprietary information. Please be advised that the unauthorized use or disclosure of the information is strictly prohibited. The information herein is intended only for use by the intended recipient(s) named above. If you have received this transmission in error, please notify the sender immediately and permanently delete the e-mail and any copies, printouts or attachments thereof.


------------------------------------------------------------------------------
OpenSolaris 2009.06 is a cutting edge operating system for enterprises 
looking to deploy the next generation of Solaris that includes the latest 
innovations from Sun and the OpenSource community. Download a copy and 
enjoy capabilities such as Networking, Storage and Virtualization. 
Go to: http://p.sf.net/sfu/opensolaris-get
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null
------------------------------------------------------------------------------
OpenSolaris 2009.06 is a cutting edge operating system for enterprises 
looking to deploy the next generation of Solaris that includes the latest 
innovations from Sun and the OpenSource community. Download a copy and 
enjoy capabilities such as Networking, Storage and Virtualization. 
Go to: http://p.sf.net/sfu/opensolaris-get
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null