My question is about checking remote services under Nagios. I have installed nrpe and the standard plugins on my Nagios server (RHEL 5.4) and the systems I want to monitor. I have been able to create hostgroups. I am somewhat confused as to how to add a new service. I want to check to see if tomcat is running on the remote servers. I found a plugin check_procs. If I run the following command on one of the remotes it works.
Quote:
check_procs -u tomcat6
PROCS OK: 1 process with UID = 101 (tomcat6)[code].....
It doesn't work. I'm not sure how to format the service.I've found gobs of documentation on how to setup and install Nagios, done. I've not been so lucky on how to setup a new service.
checking of services in Nagios. You all know the check_[service] command right? In the commands.cfg and windows.cfg. To check for the different types of services/ports, we just replace the [service] in check_[service] with the name of the port? I only know of check_http, check_ssh, check_ftp etc. Some ports like Finger, snmp etc, all these we also write it as 'check_finger', 'check_snmp'? 2) And, if that is the case, do we have to install additional plugins to monitor the ports defined earlier? 3) Lastly, if i want to monitor finger,snmp in windows server, would i need to download any software?
I'm trying to setup my test nagios to check the disk space of another linux box. I've got it setup and checking. But to my surprise, it was checking the nagios server's local disk space instead of the remote linux.
Here is my services.cfg.
define service{ use basic-service name disk-space check_command check_local_disk!20%!10%! /
Since a week or 2 Nagios is constantly marking hosts (servers mainly but also a few Serial-over-IP converters) down for anything up to a few minutes. Typically, all services stay in OK status. Looking closer at a host in such state, it's status information is
CRITICAL - Packet Filtered (<IP address of host in question>)
in soft state. Sometimes services are in critical state with the host in OK status. Almost always the status information is "No route to host". Further checking shows no problems. Rarely this state lasts longer than one check interval. This started after a link was down, putting, correctly, all hosts and services on red for being unreachable. The link problems were solved within a few hours but Nagios only showed this after 2 reboots. Since then the problems has lessened in frequency gradually, from 5 to 10 of the 34 hosts being reported down at any given moment (the same for the 150-ish services monitored) to where I am now, 1 to 5 problem statuses (counting both hosts and services) and the occasional 'all green' screen. A week ago, when the problems were going a week already, Nagios updated from 3.2.0 to 3.2.1. This showed no apparent improvement.
Still, the Host Groups screen is not stable. A read or yellow status initially signified a problem to be looked at, right now it is likely a false alarm to will go away. Whenever the "packet filtered" or "no route to host" is followed up by a ping test, no problems, not even with the slightest delay or packt loss are found.
i've been trying to send emails to my gmail account and it works now. using postfix, how do i make nagios send notifications to my gmail account when any services go down?i saw this commands for email in commands.cfg:
I have installed nagios in a CentOS vm and now its monitoring the local host, one remote host which is also a vm with CentOS 5.3 and one windows xp system. Is there any option for me to change the threshold time for the services given? For e.g. I had a service of current_load which comes as a default plugin while installing nagios itself. What should I do to change the threshold value of the current_load so that I might get the warning or error alert some time earlier as it was now.
I believe that I need to disable the host check, I'm checking a public FTP service and ping is disabled on that FTP host. This is resulting in Nagios reporting the host as down, but the service shows as OK.
I am looking for a command line utility like ping that can use for checking appropriate services on a server . I do not want do any port scan . I just want to use it for checking apache , mail,ftp and other services on a server if they are running or down.
After Days of trying to install Nagios, I eventually got everything working fine ! The only problem now is I get the following error message on the nagios web interface: "It appears as though you do not have permission to view information for any of the services you requested... If you believe this is an error, check the HTTP server authentication requirements for accessing this CGI and check the authorization options in your CGI configuration file."
Yesterday i install nagios, after that i can successfully monitor my local machine disk usage and its services, but now i want to monitor remote host, but have no idea how to do this , i also google alot but not getting resource full explanation.so please guys tell me how can i monitor the remote host using nagios..
i have some problem with nagios adding remots hosts in localhost.cfg (/etc/nagios/objects/localhost.cfg) file in that i am able to only one remote host if i add one more host in that file i got below error #/usr/sbin/nagios -v /etc/nagios/nagios.cfg
Nagios Core 3.2.3 Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors Copyright (c) 1999-2009 Ethan Galstad Last Modified: 10-03-2010 License: GPL
Is this possible that a process running on a remote-host only inform nagios when some thing is wrong. Rather then nagios-monitoring-server checking through NRPE every so often. Reason is I want to add too many alerts in the application. And I don't want a whole list of ok messages.
Well this is my first time using redhat 7, the install went fine and webserver, mysql, phpmyadmin are all working......great
The only problem i have is the remote desktop
I have set the password in preferences/remote desktop run command vncpasswd and set password
In services vncserver i get this message......... xsetroot: unable to open display '' Xvnc is stopped and vncserver failed. The error was: xsetroot: unable to open display '' Shutting down VNC server: 1:user1[FAILED]
Starting VNC server: 1:user1 [FAILED]
My vncservers file looks like this
I have tried restarting service using root login and user1
I have installed Nagios 3 on CentOS 5.2. Everything is running. It is monitoring 10 machines and 60 services for now. Now I want email notifications for the critical alerts from Nagios. I am already having one mail server (Qmail) running on different machine and I want to use its reference to send alerts to my network.
Is there a good terminal services client available I can connect to my Windows boxes from Fedora12? I am willing to pay for a commercial license if there is a good one
How to see the code behind the nagios plugin: Nagios Checker? I opened the folder which i have downloaded. After that where do i have to go to see the codes? Is it in App_Codes?
So I want to get mount/umount option under right click services menu. I went to Dolphin -> Settings -> Configure Dolphin -> Services -> Download New Services and from there I installed KDE CDEmu Emulator and MountISO. But neither of them is showing up in actual context menu. Neither in Dolphin -> Settings -> Configure Dolphin -> Services for that matter. I tried to install them as normal user and as a root. I went to have a peak in /usr/share/kde4/services/ServiceMenus/ but they aren't there as well... It's just me or lots of things seems to be not quite working in 11.3?
Sometimes at startup I get this message "Checking disk 1 of 1". Does that mean it's checking all partitions on the hd? After a bad shutdown there is no prompt for fsck to run and the system just boots up. In fstab I have both options set to "1" for the partition Ubuntu is on, all others set to "0". Any ideas on both?
So we monitor all of our disk space, but only get pages for critical. What we would like to do is have one email sent to our team every month with all the "Warnings" for our disk. I have been searching and haven't found a way to do this. Any suggestions?
Canon cameras used to come with a piece of software called remote capture for Windows and MacOS.
You plug in the camera via USB, and then the camera display is on your monitor. From there you can do everything your camera does, like taking pictures of video. Does anyone know if there is linux equivalent software that can do this?
I have found this software, but new cameras aren't supported. [url]
I maintain plain vanilla Ubuntu 10.04 systems for several friends. Each machine has only one user, the owner. I use Remote Desktop to instruct and to perform maintenance. Here's my problem:After updating the system, if the kernel has changed, a restart is needed. If I do a restart, I then have to phone the owner to insert his login credentials in the gdm login screen, before I can do anything else via Remote Desktop on that machine.There ought to be a simple way I can avoid the phone call and login myself.
I'd strongly prefer not to use any software that is not included in a plain vanilla Ubuntu 10.04 installation. And I don't want to weaken system security beyond what it is now.Is there a solution? Or, what is the simplest solution?
We're using both SuSe and RHEL servers. Our servers are running behind firewall device and remote root login is disabled in SSH.
We're using NAT.
Remote client connections including failed logins are logged into the /var/log/messages but what is logged are gateway ip of our LAN - the LAN IP of Firewall device.
How can I logged the external or public IP of the remote client?
What is the best nagios web frontend available? I want one that allows to add hosts, remove them, configure them, etc. If possible, with a good documentation.
I installed Nagios following the Quick Install method from the Nagios.org web site but now I would like to add and monitor another host.I don�t find a way , I have for example replaced the ip number of the localhost(127.0.0.1 localhost.cfg) for another ip number and I am able to monitor another computer that way. But then I no longer MONITOR the localhost unless I replace the ip number in the localhost.cfg file. what I would like to do is to monitor both or more computers.
