Recommended monitoring for older RedHat releases?

[PhilG]

Hello:
We are using Nagios XI 2014R1.4.
We have a few older Linux distros, RedHat 9 and RHEL 3, that will not be upgraded for quite some time due to our customers and timelines, etc.
Could the NRPE agent still be installed and used for monitoring on those Hosts?
Do you have any other recommendations besides the Bulk Host Wizard?
Thank you.

[BanditBBS]

You may have ot d/l and use and older version of nrpe, but it should work.

I use check_by_ssh here for all my linux checks and it works out well. I have a script I use that connects to the remote(customers) servers and determines the OS and copies the proper version of the plugins to the server.

[PhilG]

You may have ot d/l and use and older version of nrpe, but it should work.

I use check_by_ssh here for all my linux checks and it works out well. I have a script I use that connects to the remote(customers) servers and determines the OS and copies the proper version of the plugins to the server.

Would you care to share that script, por favor??

What version of NRPE would you recommend and is it available somewhere (link?)?

Thank you.

[BanditBBS]

http://sourceforge.net/projects/nagios/files/nrpe-2.x/

I would definitely try the latest and see if it compiles and works. if not, then try an older version at that link.

If you aren't against using check_by_ssh instead of nrpe I will put my scripts here. Just keep in mind, the scripts assume you have ssh keys already in place for the nagios user and that /usr/local/nagios already exists with proper permissions for the nagios user(the OS team here makes sure of that with some script they wrote). I also have four folders in the folder with my script, they are:
1.) plugins - This folder has plugins that it doesn't matter the OS version or bit
2.) plugins32
3.) plugins64
4.) pluginsrh4

Notes that need mentioning:
1.) No making fun of my crappy coding
2.) If the urge is too strong, refer to #1
3.) You can easily just d/l and compile and install the nagios plugins. We do it this way so there is nothing that needs "installed" on the machines, just copied to them.

cdm.sh:

Code: Select all

#!/bin/sh

#set -e
#set -u

cat <<- EOF
        #######################################
        #                                     #
        # This is the installer script        #
        # for installing Nagios monitoring    #
        # plugins                             #
        #                                     #
        #######################################
EOF

echo "Please enter the FQDN of the new Host"
read hostname
echo "You entered: $hostname"

# Connect to remote host
ssh nagios@$hostname 'bash -s' -- < /home/nagios/newservers/itcremote.sh
# copy from Nag04 to new host
RELEASE_VER=`/usr/local/nagios/libexec/check_by_ssh -H $hostname -C "cat /etc/redhat-release"`
if [[ "$RELEASE_VER" == *"release 4"* ]]; then
  echo "release 4"
  scp ~/newservers/pluginsrh4/* $hostname:/usr/local/nagios/libexec
  scp ~/newservers/plugins/* $hostname:/usr/local/nagios/libexec
  echo ""
  echo "Folders created and plugins copied"
  exit
fi

MACHINE_TYPE=`/usr/local/nagios/libexec/check_by_ssh -H $hostname -C "uname -m"`
if [ ${MACHINE_TYPE} == 'x86_64' ]; then
  # 64-bit stuff here
  echo "64 bit"
  scp ~/newservers/plugins64/* $hostname:/usr/local/nagios/libexec
else
  # 32-bit stuff here
  echo "32 bit"
  scp ~/newservers/plugins32/* $hostname:/usr/local/nagios/libexec
fi
scp ~/newservers/plugins/* $hostname:/usr/local/nagios/libexec
echo ""
echo "Folders created and plugins copied"

remote.sh: (also shows us the vnc listening ports, you can comment out that section)

Code: Select all

#!/bin/sh
if [ ! -d /usr/local/nagios/libexec ]; then
    mkdir -p /usr/local/nagios/libexec;
fi;
chown -R nagios:nagios /usr/local/nagios
echo ""
echo "Here is VNC information"
echo ""
ps -ef|grep vnc
echo ""

[lmiltchev]

Thanks, BanditBBS!

@PhilG
Let us know if BanditBBS's post helped.

[rajasegar]

Hello:
We are using Nagios XI 2014R1.4.
We have a few older Linux distros, RedHat 9 and RHEL 3, that will not be upgraded for quite some time due to our customers and timelines, etc.
Could the NRPE agent still be installed and used for monitoring on those Hosts?
Do you have any other recommendations besides the Bulk Host Wizard?
Thank you.

I just created a package for RHEL4 using nrpe 2.15 and nagios plugins 2.03
Just download and compile them in RHEL4

All the checks work just fine so far.

[slansing]

How did the script work out for your Phil? We'll be closing this thread if all is good!

[PhilG]

How did the script work out for your Phil? We'll be closing this thread if all is good!

Bandit's information looks great, but the goal provided by a colleague here is to implement NRPE.

Additionally, I have another post asking about mass deployment/push of those clients to numerous Linux servers, and it appears to be something not easy (like SCCM for Windows).

[slansing]

Well you can use Chef/Puppet, which are pretty much the excepted alternatives to SCCM for *nix. There is a boat load of documentation on doing what you are asking with them, I had just hoped we had our solution to this deployed by now.

[PhilG]

Well you can use Chef/Puppet, which are pretty much the excepted alternatives to SCCM for *nix. There is a boat load of documentation on doing what you are asking with them, I had just hoped we had our solution to this deployed by now.

That's okay. I understand R/D takes time, and I'm sure it's not an easy thing to accomplish. The effort your team puts in will be quite welcomed once the "features" have been worked out and the solution is provided for production to the masses!

Thanks, again! You may freeze this post.