Help in regarding Monitoring tools for RHEL 5.1 ?

phani.junk1 · 10-19-2009, 02:51 PM

Hi frds

I am looking to learn monitoring tools for monitoring purpose as i am using RHEL 5.1 as my operating system. I am not sure where to start from as i havent got a clue in regarding them. can some 1 help me in getting the software for the tools such as cacti, hp open view or any tools for installation and guide me in right direction to learn these tools in an easy and effective way.

Thanks in advance

jlightner · 10-19-2009, 03:20 PM

hp open view costs money - you'd get it from HP.

Haven't used Cacti.

A free one many people use is Nagios (monitoring server) and NRPE (plugin for the servers to be monitored).

This Quick Start guide was written for Fedora but I was able to use it as a guide for my RHEL 5.3 install.
http://nagios.sourceforge.net/docs/3...rt-fedora.html

At the end it talks about monitoring UNIX/Linux systems and that will lead you to the NRPE stuff.

jmc1987 · 10-19-2009, 11:21 PM

Nagios is one of the best server monitors. It won't be easy at first to understand it capabibilies but in time it will be one of your most powerful resources.

phani.junk1 · 10-21-2009, 07:09 AM

Quote:

Originally Posted by jlightner

hp open view costs money - you'd get it from HP.

Haven't used Cacti.

A free one many people use is Nagios (monitoring server) and NRPE (plugin for the servers to be monitored).

This Quick Start guide was written for Fedora but I was able to use it as a guide for my RHEL 5.3 install.
http://nagios.sourceforge.net/docs/3...rt-fedora.html

At the end it talks about monitoring UNIX/Linux systems and that will lead you to the NRPE stuff.

Hi

i have installed all the pre required packages but could not understand the step 1 creating account information as those are not complete command i suppose. that would be great if u could help me

1) Create Account Information

Become the root user.

su -l ------------------ is this complete command

Create a new nagios user account and give it a password.

/usr/sbin/useradd -m nagios -------------- is this complete command

passwd nagios

Create a new nagcmd group for allowing external commands to be submitted through the web interface. Add both the nagios user and the apache user to the group.

/usr/sbin/groupadd nagcmd

/usr/sbin/usermod -a -G nagcmd nagios

/usr/sbin/usermod -a -G nagcmd apache

EricTRA · 10-21-2009, 07:20 AM

Hello,

I also have Nagios (3.04) included in GroundWork monitoring server. The GroundWork system has as advantage that you can use a very user-friendly webinterface to configure everything. It also comes with a lot of help. The core of it is Nagios.

So if you like the command line interface, go with Nagios. If you like the 'easy life' go with GroundWork.

Quote:

su -l ------------------ is this complete command

The command

Code:

su -

is used to become root (if you're not logged in as root already) and yes, it's the complete command. You could also use

Code:

su - root

which is the same.

Quote:

/usr/sbin/useradd -m nagios -------------- is this complete command

This is indeed the 'complete' command although there are more options available, but in this case not needed.
The command creates the user and a home directory for it in /home.

The last commands on your list just add the necessary users to the nagcmd group.

Kind regards,

Eric

avijitp · 10-21-2009, 09:07 AM

You need to get your basics right before you dive deep into Nagios. It is a robust tool and can be really confusing at a time.

phani.junk1 · 10-21-2009, 09:21 AM

Quote:

Originally Posted by EricTRA

Hello,

I also have Nagios (3.04) included in GroundWork monitoring server. The GroundWork system has as advantage that you can use a very user-friendly webinterface to configure everything. It also comes with a lot of help. The core of it is Nagios.

So if you like the command line interface, go with Nagios. If you like the 'easy life' go with GroundWork.

The command

Code:

su -

is used to become root (if you're not logged in as root already) and yes, it's the complete command. You could also use

Code:

su - root

which is the same.

This is indeed the 'complete' command although there are more options available, but in this case not needed.
The command creates the user and a home directory for it in /home.

The last commands on your list just add the necessary users to the nagcmd group.

Kind regards,

Eric

hi

i know that for changing to root i need to use su command but it su -l which is used for login.
i am already logged in as root but its not allowing to add a user by using that command

/usr/sbin/useradd -m nagios

passwd nagios

http://nagios.sourceforge.net/docs/3...rt-fedora.html --- in this link step 1 i am having a problem as i am already logged as root

kirukan · 10-21-2009, 11:59 AM

Did you refer the nagios official document for installation and configuration because that is well documented instruction guide.
http://support.nagios.com/knowledgebase/officialdocs

EricTRA · 10-22-2009, 01:28 AM

Hello,

What error or message do you get when you execute

Code:

/usr/sbin/useradd -m nagios

Kind regards,

Eric

phani.junk1 · 10-27-2009, 09:38 AM

Quote:

Originally Posted by EricTRA

Hello,

What error or message do you get when you execute

Code:

/usr/sbin/useradd -m nagios

Kind regards,

Eric

hi
sry thats working i got the command wrong at that time and i have installed nagios and the web interface is also working fine. How to use that ? I know thats a pretty strange question but could you plz help me in learning it.

TB0ne · 10-27-2009, 10:24 AM

Quote:

Originally Posted by phani.junk1

hi
sry thats working i got the command wrong at that time and i have installed nagios and the web interface is also working fine. How to use that ? I know thats a pretty strange question but could you plz help me in learning it.

Go to their webiste, and read the documentation. Use the software, and try to figure it out. If you have a specific question, please post it, but I doubt anyone is going to have the time to give you a full Nagios class here...

EricTRA · 10-27-2009, 10:33 AM

Hello,

If you only installed Nagios then you're bound to use the command line and configuration files in order to configure and get Nagios working. The standard web interface shows you the monitoring result if configured through the configuration files.

As TB0ne said, go to their website, consult the manuals and take it from there. There's a lot of documentation hanging around on the internet.

If you don't feel comfortable with the command line and the Nagios configuration files, then have a look at GroundWork Monitor Community Edition. It's their free version, based on Nagios 3.06 and comes with a very handy configuration interface.

Kind regards,

Eric