Questions tagged [nagios]

Nagios is a monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

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Nagios - Define as service for all the members of a group *except* some hosts?

We're using nagios to check our ssh server is running. We have the check_ssh group defined for all members of a certain group. We have other services defined for that group as well. Everything is fine....
Amandasaurus's user avatar
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2 answers
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The best nagios plugin for SMART? [closed]

I've tried the best plugin for nagios to SMART monitoring. There are some, but only monitoring temperature. But with smartctl we can find more data. Do you have some better plugins with all data from ...
Rafał Kamiński's user avatar
5 votes
4 answers
44k views

Nagios - Could not complete SSL handshake

I'm trying to configure Nagios command for checking status of physical memory on a remote Windows host using NRPE plugin. I'm using Nagios v3.0.6 on Ubuntu Server v14.10, and latest stable version of ...
Marko's user avatar
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5 votes
4 answers
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NRPE and the $USER1$ variable

I have NRPE daemons running on all of my remote Linux boxes. I have a couple configurations in place and I'm trying to standardize the paths in my nrpe.cfg. The changes are deployed via Puppet. I ...
Tim Brigham's user avatar
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6 answers
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nrpe: Host is not allowed to talk to us

I installed nrpe on new servers. Nagios is already running and checking other server (I haven't installed). I've got several error lines in my syslog file : Oct 31 15:17:01 myservername nrpe[41848]: ...
Jean-Philippe Caruana's user avatar
5 votes
4 answers
11k views

How can I make Status Information for Nagios services easier to read?

I'm running Nagios in an environment with several servers, each with several services on them. There are a few custom checks, but it's nice to use existing checks if possible. I'm using NRPE plugin ...
Paul's user avatar
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2 answers
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What's the best method to monitor an OpenVPN server?

I have an OpenVPN server machine which resides on an isolated network, a NAT rule in the company's firewall is redirecting all traffic on port 1194 (tcp) from the public IP I chose to the internal ...
Itai Ganot's user avatar
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Have Nagios execute a command when it detects a down host

I would like Nagios to execute a Bash command/script when it detects a host down or up. This would allow me to react to down hosts to some degree which would be very interesting. How would I do this ?...
Antoine Benkemoun's user avatar
5 votes
7 answers
7k views

Choosing a monitoring system for a dynamically scaling environment: Nagios v. Zabbix [closed]

When operating in the cloud and scaling boxes automatically, there are certain monitoring issues that one experiences. Sometimes we might be monitoring 10 boxes and sometimes 100. The machines will ...
wickett's user avatar
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5 answers
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Nagios simple dashboard [closed]

I am looking for a dead simple dashboard for Nagios so our IT team can view the status of our services. In an old version of what's up gold, it was a nice dashboard with different rectangular shape ...
Thomas's user avatar
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4 answers
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SELinux prevents Nagios plugins from running on RHEL6

After installing Nagios NRPE & Nagios Plugins, I'm getting the following entry in my rsyslog: May 13 14:01:30 wcmisdlin02 kernel: type=1400 audit(1305309690.482:2334): avc: denied { getattr } ...
alexus's user avatar
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Nagios check with $ in parameter

I need to add Nagios checks for Windows SQL services that have a dollar sign in the name (e.g. MSSQL$TOLLCONNECT) but am so far unable to work out how to pass that name along without it being Nagios ...
John Gardeniers's user avatar
5 votes
3 answers
27k views

Nagios: Disable notifications from command line on Windows/Linux

Our routine maintenance requires services have to be brought down. The problem is these services have Nagios checks and we either have to go to the web interface and disable the check or get the ...
ahill's user avatar
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1 answer
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Simple monitoring solution for a single server [closed]

I have a little experience with server monitoring products from my previous job (mainly Nagios), but never had the chance to set up a monitoring scheme from scratch. Every time there was a number of ...
dlyk1988's user avatar
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Checking for read only file systems remotely

I need to remotely periodically check if a Linux file system is mounted read only on lots of servers. The only tools at my disposal in this instance are the usual CLI scripting languages (BASH/Perl/...
SimonJGreen's user avatar
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3 answers
7k views

Check SSL certificate validity, including CA chain, with Nagios

Nagios can do SSL checking, but it doesn't actually check if the certificate is valid for the connection address you're using (common name match). On one of our servers, a postfix configuration file ...
Halfgaar's user avatar
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How do I add a host in icinga-web?

how do I add a host in icinga-web? Do I need to modify access.xml and rebuild the cache? Or can I have a configuration similar to icinga/nagios?
Dieter's user avatar
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2 answers
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Nagios alert based on scheduled MySQL queries results

I have installed Nagios 4.0 on my Ubuntu 14.0 and i want a plugin to alert me based on daily scheduled MySql queries .. if the result of ( select count(*) from tableName > 10 ) raise a critical ...
Ahmad Alhusainy's user avatar
5 votes
2 answers
9k views

Overriding Nagios hostgroup service with host service

I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. My issue is that I then want to be able to override these service definitions which ...
Geekman's user avatar
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3 answers
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Check if puppet agent is up to date

I would like to check with my nagios monitoring if every node use current catalog version provided by puppetmaster. In my situation, there are: puppetmaster host1 host2 hostX I would like to create ...
Tomasz Olszewski's user avatar
5 votes
3 answers
663 views

Monitoring various Nagios? Alternative to Coffeesaint [closed]

In our company, we have one nagios for each of our clients, to offer them a 24x7 monitoring service. Currently, we are using Coffeesaint to have a "central monitoring display" were all alarms about ...
Kevin Maschke's user avatar
5 votes
1 answer
6k views

Nagios check_total_procs with Default Values

We are using the Nagios plugin check_total_procs to check the total number of processes on our servers. The default settings for this that are installed are: command[check_total_procs]=/usr/lib/...
cliff.johnson's user avatar
5 votes
2 answers
2k views

Ways to monitor SIP termination on an asterisk server

I have a nagios setup which ensures that SIP is responsive on my Asterisk server, that's straight forward. My question is, what kind of possibilities are there that the Asterisk server can actually ...
imaginative's user avatar
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nagios nrpe unable to read output

I'm trying to use check_nrpe to check on a remote server, but it's not working and I can't figure out what am I missing... # /usr/lib/nagios/plugins/check_nrpe -H XXX -c check_load -a 6,5,4 8,7,6 ...
alexus's user avatar
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NSClient++ returns 'Connection Refused'

I have been unsuccessfully trying to get NSClient to work on my 64 bit Windows 7 machine with Windows Firewall turned off. I have tried with the service started and also tried running 'NSClient++ /...
Jim R's user avatar
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1 answer
20k views

Nagios not following redirect with check_http

Currently for testing I set the service check as follows: define service{ use generic-service host_name <host> service_description HTTP check_command check_http!-s "blablabla" -f ...
Brandon's user avatar
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5 votes
5 answers
7k views

How to send an "Everything is OK" notification from Nagios?

I need to configure Nagios to send a notification that says everything goes well, if there's no problems. Does this sort of setting exist or is there a plugin for that?
Roman Prykhodchenko's user avatar
5 votes
3 answers
12k views

Monitor ESXi hosts with Nagios

Does anyone recommend any methods for monitoring ESXi 4.1 hosts with Nagios? I have looked into SNMP but it seems to be in a pretty sorry state. Net-SNMP does not seem to be included and there is a ...
Kyle Brandt's user avatar
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Any good rsnapshot nagios plugins?

I'm using Nagios to monitor servers, and we use rsnapshot for backups. I'd like a plugin for Nagios that monitors that rsnapshot is being run successfully. I've seen some rsnapshot plugins that will ...
Amandasaurus's user avatar
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5 votes
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How to define a host group on Nagios 4

I would like to define a host group on Nagios 4. In recon it should be defined somewhere in /usr/local/nagios/etc. I tried creating a file hostgroups.cfg that with contents: define hostgroup{ ...
murze's user avatar
  • 169
5 votes
1 answer
444 views

Notify when some grouped services fail in Nagios [duplicate]

I have three DNS services, each on different hosts configured in Nagios. Each service notifies me whenever it is failing (DNS on host A down). Is it possible to configure Nagios so that I'm only ...
user211195's user avatar
5 votes
5 answers
38k views

Nagios: NRPE: Unable to read output, Can't find the reason, can you?

I have a Nagios server and a monitored server. On the monitored server: [root@Monitored ~]# netstat -an |grep :5666 tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN ...
Itai Ganot's user avatar
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5 votes
1 answer
3k views

Nagios best practices for setting up hosts/services?

I am having a hard time trying to get my head around some of the more basic concepts of Nagios that I thought would be straight forward. Basically, as well as the standard local infrastructure, I ...
William Hilsum's user avatar
5 votes
6 answers
5k views

Nagios failing to expand $CONTACTEMAIL$ macro in notificaion command

I'm having a problem where my nofication command isn't expanding the $CONTACTEMAIL$ macro (Version 3.2.1 installed on debian squeeze using the debian packages) me@hostname:/etc/nagiosql# dpkg -l | ...
navaho's user avatar
  • 295
5 votes
2 answers
10k views

Nagios NRPE check_procs reporting incorrect number

I have an etch nagios server (I will call this NagiosServer), successfully monitoring lots of stuff, including another etch server (MonitorEtch). Using check_nrpe and check_procs I'm able to check the ...
Nick Sturgess's user avatar
5 votes
1 answer
5k views

How do I Display Nagios Host Custom Variables or Macros in the Web Interface?

How can I display custom host variables in the Nagios web interface such as _mac_address?
Kyle Brandt's user avatar
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5 votes
5 answers
9k views

nagios Missing Dependency: perl(Net::SNMP)

I have an odd problem. I'm trying to install nagios NRPE but it keeps failing with nagios-plugins-1.4.15-2.el5.rf.i386 from rpmforge has depsolving problems --> Missing Dependency: perl(Net::...
Mech's user avatar
  • 660
5 votes
1 answer
2k views

How can I monitor VNC via Nagios?

I have a number of remote sites which have VNC running on a few computers for support purposes. They are (obviously) only available on our internal network. I am using Nagios to keep track of all ...
atroon's user avatar
  • 518
5 votes
1 answer
5k views

In Icinga (Nagios), how do I configure hosts with multiple IPs?

I'm setting up Icinga (Nagios fork) and I have some machines with multiple interfaces. Some services are only listening on one of them and to check them correctly, I like to know if it's possible to ...
gertvdijk's user avatar
  • 3,574
5 votes
3 answers
5k views

Nagios (Return code of 141 is out of bounds) on random services

We have had Nagios running on one of our servers with out any problems for a while but lately we get (Return code of 141 is out of bounds). The load on the server raised because we gone online with ...
PortKnox.net's user avatar
5 votes
1 answer
4k views

Nagios performance graphs

I've written my own perl script to return status from a server of mine. It is running just fine (ie. performance data: val1=1; val2=5; val3=10). Using templates.dist/default.php this gives me 3 ...
Kasper Middelboe Petersen's user avatar
5 votes
5 answers
8k views

Is there a Nagios plugin that uses Nmap and does port checking?

I need to monitor open and closed ports on dozens of hosts. I've found a Nagios plugin that does what I need, but I would have to use this script through NRPE. Some of the hosts are powered by Linux ...
Eedoh's user avatar
  • 171
5 votes
1 answer
2k views

Nagios: How to aggregate a large amount of notifications into one email notifcation?

I have a Nagios server which monitors many servers. There's a dashboard which has been coded in-house and it sends monitoring data using passive checks to the Nagios server. Whenever an issue occurs, ...
Itai Ganot's user avatar
  • 10.8k
5 votes
1 answer
2k views

How to allow Active Directory authenticated users use Nagios web interface?

I have put .htaccess files in the Nagios html root and CGI root directories, so in order to get access to the web interface, the users needs a valid Active Directory account. The problem I have is in ...
Sandra's user avatar
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5 votes
1 answer
12k views

NAGIOS notification command for service/contactgroup

We have 3 templates for services, low-priority, high-priorty and medium-priorty. Low priority services are attached to the contactgroup low, medium priorty services are attached to the contact group ...
user avatar
5 votes
1 answer
1k views

Configuring holidays for Nagios

I had nagios configured to know that this was a holiday: monday -1 may 00:00-24:00 ; Memorial Day (Last Monday in May) As far as I can tell it didn't work on Monday because I received some ...
Kevin Peterson's user avatar
5 votes
1 answer
4k views

How the heck do you test an HTTPS site for a revoked cert?

I'm currently using nagios to do monitoring, including using the check_http options to check for an SSL cert that expires soon, etc. What I'd like to do is include testing for revoked certs for each ...
Bill Weiss's user avatar
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5 votes
1 answer
1k views

Nagios escalations, prematurely critical escalation after warning

In Nagios 3, I would like a service to be escalated after being critical XX minutes. It works great on services that go from UP to CRITICAL. However, if the service has been warning >XX minutes (say ...
Matt Simonsen's user avatar
5 votes
2 answers
266 views

Monitoring tool which does not average data over time [closed]

I am looking for a monitoring system like Cacti which doesn't loose data over a time, all the tools I have found use rrd files which averages the data as time goes by. I would like a to be able to go ...
Epaphus's user avatar
  • 1,021
4 votes
2 answers
5k views

is Sensu a replacement for both CollectD and Nagios?

Trying to get my facts straight here. Is Sensu (pretty new kid on the block) meant to be a replacement for both the following?: Nagios (monitoring & alerting) collectD (feeding info to Nagios ...
Gbrits's user avatar
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