Questions tagged [nagios]
Nagios is a monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
1,296
questions
3
votes
5
answers
1k
views
Positive vs. negative monitoring
Ive been looking at monitoring for a while. My org didnt have any before i came other than 'whered my yahoo go'. It appears that most packages out there focus on negative monitoring (ie, this ...
- 951
3
votes
4
answers
17k
views
Is there a possibility to monitor https sites in nagios over a proxy?
i have a little question about the nagios tool:
Is there a possibility to monitor https sites in nagios over a proxy? Which means i want to monitor whether my proxy can reach some https ressources in ...
- 613
3
votes
4
answers
2k
views
What's the best way to pair Nagios monitoring with EC2?
I've got some NT boxes located on EC2 that I'd like to monitor. The problem is that the Nagios box needs to know an IP address it can connect to in order to do the monitoring, and the IPs of the ...
- 151
3
votes
4
answers
8k
views
Monitor multiple webs within a server in nagios
I would like to monitor/test multiple virtual hosts in an Apache Webserver and besides, I would like that these checks appears as a one service in Nagios -> HTTP. And if one of the web/URL fails, the ...
- 169
3
votes
5
answers
3k
views
Nest check_by_ssh in Nagios?
I'm trying to monitor a remote cluster of servers with one server that has a public IP. I'm trying to nest check_by_ssh to check on things like load, etc. But no matter what kind of quoting and ...
- 191
3
votes
5
answers
6k
views
Windows Pagefile monitoring with Nagios
I have a NAGIOS check that monitors virtual memory on a windows machine, this check returns all the virtual memory used (physical+ max size of the pagefile).
This is not what I want, I have tried to ...
- 93
3
votes
3
answers
31k
views
Free Nagios virtual machine [closed]
Where can a I get a quality, free VM of Nagios?
http://www.nagios-on-cd.org/ seems to be dead, and the VMware appliance directory only lists JumpBox (good quality, but paid) and several other very ...
3
votes
4
answers
5k
views
Nagios check whether at least one out of two services is OK
I have two following passive services: ServiceA, ServiceB on one machine.
I would like to have a sittuation when the OK state is satisfied by following conditions:
ServiceA is OK or ServiceB is OK
...
- 538
3
votes
2
answers
8k
views
Checking the issued and expiry dates for the certificates involved a certificate chain
Is it possible to check the issued and expiry dates for the certificates involved in a certificate chain by just passing a domain?
I tired various openssl s_client attributes, but I am not able to ...
- 133
3
votes
3
answers
20k
views
Nagios - Is it possible to create "view only" users and let them view only specific services/servers?
We have Nagios Core 3.2.1 installed and my current task is to allow non-admin users access to the Nagios UI.
Is that even possible? or would i need to install some add-on?
- 10.8k
3
votes
1
answer
155
views
add hostgroup instead of overwriting it
In my nagios configuration, hosts that use a specific template are automatically added to a hostgroup, so my configuration looks something like this:
define host {
name foo
...
...
- 225
3
votes
3
answers
311
views
simple nagios script failing
What is wrong with the following if-then-else? I never can hit the else.
if [ $result > $value ]; then
echo HEALTH: OK. Result is $result Value is $value
exit 0
else
echo HEALTH: ...
- 169
3
votes
2
answers
5k
views
How can I set up Nagios to Monitor a Canon iR 3035?
I've been googling for how to set up printer monitoring - especially for Canon printers. This is because I have a Canon iR 3035 that I want to monitor for toner problems, paper jams, and paper outages....
- 2,793
3
votes
2
answers
2k
views
Nagios only create warning for a http service
I would like to also monitor non-crucial services with nagios like for example our GitLab-server or phpMyAdmin instance. Is there any way to just create warnings instead of critical errors for some ...
- 147
3
votes
4
answers
26k
views
Looking for toner level OID for nagios snmp for Brother 9460
I'm setting up an Opsview (nagios) server for monitoring. It's all going fairly swimmingly so far. The most immediate use for the system will be monitoring (or more to the point, alerting me about) ...
- 278
3
votes
2
answers
1k
views
Complex nagios command
I have defined the following command for one of my service checks:
define command{
command_name mycommand
command_line $USER1$/check_by_ssh -p $ARG1$ -l nagios -i /etc/nagios2/...
- 4,350
3
votes
1
answer
3k
views
Beginners Guide to SNMP? [closed]
I have been searching for days on a beginners guide or tutorial on understanding and using SNMP.
I am looking for a guide that starts from the very basics of explaining what an OID and MIB's are to ...
user89350
3
votes
4
answers
4k
views
Monitoring vmware with nagios
I'd like some way to connect nagios, so it sees the status of the Virtual Center, i.e. if the infrastructure client shows an alarm, it is shown in nagios.
Not nessecary to show the errormessage, just ...
- 997
3
votes
3
answers
20k
views
Nagios: monitor http service on a different port
I want to monitor services over http running on multiple ports other than 80.
Services are running on port 8083, 8086 and some other ports. I created server.cfg file as follows:
define host {
...
- 151
3
votes
1
answer
259
views
Is there a way to restrict user to access only Tactical Overview in Nagios?
Is there a way for me to configure Nagios to allow user to access only "Tactical Overview" (/nagios/cgi-bin/tac.cgi) through cgi.cfg?
# grep ^authorized_for_ /etc/nagios/cgi.cfg
...
- 13.4k
3
votes
3
answers
21k
views
How to debug Nagios "NRPE: Unable to read output" when checking NFS?
I have a working Nagios setup where I e.g. monitor disk usage through the NRPE daemon without parsing arguments through NRPE for security reasons. So I know that NRPE works.
Now I would like to check ...
- 10.6k
3
votes
1
answer
3k
views
How do you Null an inherited service check in nagios?
We have a nagios setup that uses inheritance to a larger degree than I am used to. I’ve read the documentation at:
http://nagios.sourceforge.net/docs/3_0/objectinheritance.html
But I still can’t ...
- 903
3
votes
3
answers
12k
views
Where to define command in nagios
I want to define new command in nagios for remote host but i can't find out where should i write this thing
define command {
}
on remote host i have only this file
vim /usr/local/nagios/etc/...
John
3
votes
4
answers
836
views
Configure nagios to alert only when there are no mx servers available
In my company there are two redundant MX servers, I would like to tell nagios to wake me in the night ONLY if both servers are down.
The default behavior is to alert whenever one of the MX servers is ...
- 717
3
votes
3
answers
804
views
How do I rollup a hundred nagios service checks to a single check?
I'm monitoring a service via check_nrpe to hundreds of boxes. Whenever this service goes bad, typically every box goes bad and get flooded with notifications/text msgs.
Any suggestions on how or what ...
- 139
3
votes
1
answer
3k
views
nagios: trouble using check_smtps command
I'm trying to use this command to check on port 587 for my postfix server.
Using nmap -P0 mail.server.com I see this:
Starting Nmap 5.51 ( http://nmap.org ) at 2013-11-04 05:01 PST
Nmap scan report ...
- 2,379
3
votes
4
answers
12k
views
Nagios - measuring Average CPU Load
I've been looking for some hours now for a plugin that will notify me if one of my server's CPU Load has been over 90% for the past 5 hours.
No luck looking around the Nagios Exchange.
Can anyone ...
- 649
3
votes
2
answers
4k
views
Nagios - Not sure which interval should be changed in order to limit number of times a notification is sent when an error occurs
I have a Nagios server which monitors many servers.
From time to time we encounter an error which cannot be resolved at the time and we are leaving it for the time being.
When it happens, we keep ...
- 10.8k
3
votes
2
answers
1k
views
nagios service check
I am new to nagios and we have a small issue I need to ask assistance with. Many of the machines that we monitor can go unresponsive for a bit when some very intensive cpu tasks are run. This makes ...
- 51
3
votes
3
answers
1k
views
Use Nagios(or alternative free product) to monitor uptime of 50+ remote machines with dynamic IP addresses
I'm trying to monitor the uptime of 53 remote windows machines, all at separate locations. These are all behind cheapy consumer level routers of various makes, and they all have dynamic IP addresses.
...
- 105
3
votes
2
answers
18k
views
check_snmp warning & critical thresholds with negative values
I'm querying some signal level values measured in dBm, and the SNMP host on the remove device reports the values as negative values, ie, -90 dBm. However, check-snmp seems to be incapable of dealing ...
- 310
3
votes
4
answers
5k
views
Simple check to see if mysql is up with Nagios
Is there a simple check to see if MySQL is up on a host with Nagios without authenticating and selecting a table?
wooowoopo
3
votes
2
answers
4k
views
CentOS7: KVM: error: Cannot create user runtime directory '/run/user/0/libvirt': Permission denied
Been trying to resolve an issue I found by having our Nagios installation use a plugin for KVM, check_kvm, I found. I think my problem boils down to a permissions issue with the nagios/nrpe user. ...
- 233
3
votes
1
answer
5k
views
Nagios check_procs state filter
I'm on Ubuntu 14.04 and trying to run
/usr/lib/nagios/plugins/check_procs -C rsyslogd -w 1:3 -c 1:5 -s S
and it returns
PROCS CRITICAL: 0 processes with command name 'rsyslogd', STATE = S | ...
- 163
3
votes
1
answer
478
views
Nagios check for wuauserv on Windows Server 2008+
From Windows Server 2008+, wuauserv is no longer a service that's ran all of the time and is instead ran as a scheduled task. I'm not sure of the exact behavior of how the scheduled task is created as ...
- 457
3
votes
1
answer
79
views
Prevent some nagios check for certain hosts
Is there a way to configure a certain check to prevent it from running in some hosts of that hostgroup ? I want a check not to run on all the hosts of a hostgroup.
- 2,848
3
votes
1
answer
4k
views
How to monitor a UDP multicast stream on a cisco network, hopefully with SNMP
We have a LAN with 2x Cisco 4500's as gateways running HSRP.
We're using Exterity HD IP Encoders to take HD video and put it onto the network as a multicast UDP stream (playable in VLC).
I have a ...
- 180
3
votes
1
answer
676
views
Monitor a long running process
I need to start a long running, memory/disk/cpu intensive process on Linux, and monitor it so I can :
check it terminates with a good status code,
collect stats (mem cpu disk every x minutes )
alert /...
- 193
3
votes
2
answers
2k
views
Nagios frontend w/ API to change configuration?
My workplace used to use Monarch (bundled in Groundwork Community Edition). I built a custom CGI that would update the configuration when changes happen in our database of hosts (separate application)....
- 379
3
votes
1
answer
5k
views
Use Nagios to monitor Files in Folders
I am starting to use nagios to monitor some of our systems, and i was wondering if anyone had ever come across a way to make it monitor directories for files.
I want to look in a directory and say ...
- 997
3
votes
3
answers
5k
views
How can I monitor remote customer Windows/Linux PC's/Servers without opening a port in their firewall?
I work for an IT service provider - we support a range of Windows and Linux servers/PC's on our customer sites. I'm looking for a way to monitor basic stuff on these devices (e.g. disk space usage, ...
- 317
3
votes
3
answers
866
views
Let Nagios check not-allways-on workstations
we try to monitor the file age on some of our workstations. Works fine with NSClient++ - but we do not want to get any CRITICALs when the computer is shut down.
For the host, we do have a dummy check,...
- 363
3
votes
3
answers
2k
views
Puppet, Nagios, Munin on cPanel based hosts [closed]
I've been managing 20-30~ cPanel based hosts over the past year with Puppet, Nagios and Munin for general monitoring / trending however a lot of the methods I've had to use to deploy / manage things ...
- 598
3
votes
2
answers
1k
views
Nagios3, monitoring CPU usage without SNMP?
Is there currently anyway to monitor CPU usage with Nagios3 that doesn't involve SNMP setup? I want to setup notifications if I'm going above a certain threshold, such as 55% of the CPU time is being ...
- 1,981
3
votes
1
answer
1k
views
Does Mac OS X SNMP report cached memory?
We're using a Nagios plugin to check the chassis of hosts over SNMP. I'm trying to set up a mac os x machine, but it's failing. All the rest of our hosts we're checking are Linux. This is the first ...
- 32.3k
3
votes
2
answers
8k
views
Nagios: disable sending notifications for particular hosts
We have Nagios for all our server, but just for some of them we want to send notifications. I thought that if I set notifications_enabled to 0 for particular hosts, this will not happen anymore.
...
- 181
3
votes
1
answer
3k
views
NRPE allowed_hosts name resolution with IPv6
A fully IPv6 dual stack enabled network is monitored by Nagios 3.5.1 installed from EPEL on a CentOS 6.7 server. Monitored hosts run NRPE agents, all of which are configured to run as daemons (not via ...
- 4,179
3
votes
1
answer
29k
views
Nagios service running, web site error: Could not read host and service status information
Nagios was upgraded from 3.5.1 to 4.0.8
I wanted to ask this in the nagios support forum, but an hour later, I do not receive a confirmation email for setting up my account...
nagios seems to run OK ...
- 1,169
3
votes
1
answer
910
views
HP MSA 2312 XML API "Unauthorized access requested"
I'm trying to write a custom Nagios Plugin to monitor a HP MSA2312fc via the HTTP XML API. I can successfully log into the system via /api/login/{login_hash} but always get the error "Unauthorized ...
- 39
3
votes
1
answer
1k
views
icinga-web not updating icinga status properly
I have a problem similar to this one... if you look at the photo there, you'll see that the icinga server is marked as down.
I checked everything according to the answer given there, but it has ...
- 4,610