Questions tagged [nagios3]

Nagios is a service and resource monitoring system, built to help prevent and fix problems in enterprise infrastructure.

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check_apt issue with Nagios

Running a base install of Ubuntu 22.04 using Nagios and NRPE to monitor hosts, all running 22.04. My issue is with check_apt returning two different results: $# /usr/lib/nagios/plugins/check_apt APT ...
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nagios behind reverse proxy

I installed nagios core in Ubuntu. After that, I setup a reverse proxy in Apache. Now nagios is not working. I could not find what is the issue. I looked on the internet and changed the Apache ...
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Error near unexpected token `(' but then permission denied

I am trying to run this nagios plugin: sudo /usr/lib64/nagios/plugins/check_generic.pl -n "slab_mem" -e "SLAB=$$(cat /proc/meminfo | egrep "Slab:" | awk '{print $$2;}'); ...
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What is needed for nagios to send emails?

i have installed nagios4 from ubuntu repository packages in a kvm guest running ubuntu server 20.04. i am able to invoke sendmail manually and can send emails. However nagios isn't sending any ...
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Installing Nagios on Ubuntu server 18.04

I am trying to get Ubuntu 18.04 installed in order to run Nagios on it Problems start with a total lack of knowledge of Ubuntu Server - I have used Ubuntu desktop in the distant past - not that that ...
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Not receiving mail notification

I recently installed Nagios Core 4.4.3, after a while I wanted to set up mail notification, I installed Postfix (GMAIL SMTP Config) and the config seems to be fine as I tried to send some mails but ...
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935 views

Nagios check_ncpa.py not working

I have installed Nagios on my Ubuntu server. I am using it for monitoring of Windows hosts. I have installed ncpa client at Windows host and check_ncpa.py plugins at /usr/local/nagios/libexec. But ...
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This may be a stupid question but can juju work on a kubernetes cluster that was created and deployed outside of it

I'm asking because I have been trying to get some monitoring and log aggregation to work and when I do the juju side of install to an already existing kubernetes cluster it has a status of waiting and ...
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4 votes
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2k views

How to make my script wait if another instance of APT is running? [closed]

I've encouter some problems with my scripts. So to make it short and clear, I'm in an internship and my boss gave me an assignement to make a Probe for Nagios. The purpose of this Probe is to check ...
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Why does nsca-ng-server require icinga on nagios server?

This is my first question on this forum, so please correct me if necessary. We have a number of monitoring servers running ubuntu 16.04,18.04 and nagios and I want to give nsca-ng a try for passive ...
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2 votes
0 answers
528 views

Powershell constantly creates folder in /tmp

System: Ubuntu Server 14.04.1 uname -a Linux [...] 4.4.0-116-generic #140~14.04.1-Ubuntu SMP Fri Feb 16 09:25:20 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Involved Software: nagios (core Version 3.5.1)...
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Nagios Core Open Source Monitoring

Where is the HTML file of the "Service Status Details For All Host Groups" page in nagios core on Ubuntu 14.04? If I want to modify the page (e.g: delete the columns), where can I look up the php ...
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How can I make Nagios sends its Notifications and alerts to Known emails like gmail, hotmail etc

I started recently learning about Nagios Server version 4.2.3, i installed it on a VMware and configured it to monitor a host and ssh service on that host, the host also on a VMware. The question is, ...
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Nagios core installation problem

i tried to configure nagios and every thing went fine and even installed apache2 web server. The final step of installation is generating a web link and access the dashboard using browser. But while ...
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Monitoring of Windows RDP farm with nagios

I'd like to have a somewhat specific custom check to monitor Windows remote desktop server farms with nagios (nagios3 on ubuntu 16.04) Specifically, I'd like to have a WARNING state if any of the ...
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How to warn using nagios if privvmpages value exceeds threshold for an application

It would be a great help If someone could help me to achieve this. I've rented a VPS with 20GM RAM, but privvmpages maximum limit is 5GB. I have nexus, hudson, puppet, glassfish cluster with one ...
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(No output on stdout) stderr: execvp(/usr/local/nagios/libexec/check_ping) in ubuntu

I installed nagios following this tutorial http://sharadchhetri.com/2014/02/08/install-and-configure-nagios-core-4-on-ubuntu-12-04-lts/ On starting nagios and apache2, and browsing to nagios admin ...
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Change notification email subject - Nagios

Anyone can give an idea about, how can I change my Nagios email alert subject? I have google for sometime and every result says to change the command(notify-host-by-email) definition in commands.cfg ...
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1 vote
2 answers
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Nagios Installation

What command should I use to search and install nagios plugins when setting up nagios? This is not working wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.11.tar.gz ...
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936 views

nagios logs were not getting updated

when ever i am trying to restart my nagios and postfix aswell in ubuntu,the var/log/mail.log file was not getting updated with current proceedings.Please help me to solve this issue.
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When I am trying to restart mt postfix and nagios the following messaged is displayed in the mail.log file

When i am trying to restart my postfix and nagios for sending a mail automatically about the status the foollowing message appears. Status:Deffered.Connections will not be accepted from x.x.x.x ...
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xampp server not responding correctly

I had installed the nagios core in UBUNTU os and xamp,nscpp in the windows machine.I tried to monitor the status of the services and all working fine except the services like apache,mysql from xampp ...
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2 votes
1 answer
378 views

Nagios or Ubuntu Landscape free/personal for two personal servers in different houses

I have two Ubuntu (Xubuntu) 14.04 LTS servers. One at my parents' house and one at mine. Ideally I want two things: being able to see system information like CPU usage, memory usage and disk usage (...
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1 vote
1 answer
619 views

Ubuntu 14.04 VM kernel panics once every ~5-9 days on Hyper-V

I have an x64 Ubuntu 14.04.3 LTS virtual machine running the hardware monitoring and status software Nagios. The VM seems to be kernel panicking once every 5-9 days. I am unable to pin down the cause. ...
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ssh is taking too much time to connect/not connecting

When I am trying to login to a nagios server it is giving trouble to all the users at a time to connect. Either taking too much time to connect or not at all connecting. This is what is happening ...
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-1 votes
2 answers
3k views

How to Identify existing MTA on my Ubuntu server?

I am a beginner for Ubuntu Server and have very little knowledge about it. We have a running instance of Nagios Core from a production server TEST-1 (Ubuntu 14.04.2). It was set up before i joined ...
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1 answer
3k views

Nagios is sending mails manually but alerts are not coming

Alert mailing is configured from a gmail id to avoid spam catchup. Nagios alert mailing is working fine while trying manually using 'mail' command. Which clearly means, nagios is capable of sending ...
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4 votes
4 answers
35k views

How to change the username and password for nagios site access on config files

This explains how to configure username and password during initial configuration: How do I install nagios? How can I change that using config files on server if I've lost the username and password?
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613 views

Nagios Core Version 4.0.8 stopped sending automatic email notification after IP change

I have Nagios Core Version 4.0.8 installed on Ubuntu 14.04.1 LTS. I changed the IP if the server and after that nagios wont send me automatic notifications, I have send email from root and nagios user ...
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Want to start few services automatically during system boot

I am using latest ubuntu version: Ubuntu 15.04 (GNU/Linux 3.16.0-36-generic x86_64) When i reboot my whole system, i need to restart telnet, nagios services manually. Would you please let me know ...
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2 answers
1k views

How can I start a nsca server on Ubuntu 14.04?

On Ubuntu 14.04 after installing nsca package, I cannot start the service because of this error (retrieved from syslog): nagios nsca[621]: Cannot write to pidfile '/var/run/nsca.pid' - check your ...
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Installing nagios 4.0.8 on ubuntu 14.04

I am trying to install and setup Nagios 4.0.8 on my Ubuntu 14.04 LTS server. What is the ideal way to do this ? The official Ubuntu documentation regarding nagios installation is related to nagios ...
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1 answer
381 views

How to add DNS server in icinga/nagios server on ubuntu?

I already install and configure icinga on ubuntu.All host configure IP in manually.Now I want to add DNS in my icinga server. Actually, I want to add that keep to dynamic IP address in host. Now all ...
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152 views

Can't enter password in nagios3 installation wizard

I am trying to install nagios 3 on Ubuntu 14.04.1 using How do I install nagios? I have entered sudo apt-get install -y nagios3 followed by my password. I then get the dialog in the link below: The ...
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2 votes
1 answer
6k views

How to create location map in nagios server?

I already complete the installation and configuring process in Nagios server on Ubuntu. Now, I want to create location map or network map in my own nagios server. How I can do it? Please given this ...
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1 vote
2 answers
2k views

After performing apt-get dist-upgrade Perl scripts will no longer ignore invalid SSL certificates on 14.04

Good morning all, Last week I decided to run the commands to upgrade packages on my 14.04 Server to ensure that I was patched for the recently found Bash vulnerabilties. Per the info here (http://...
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adding plugin check_hping to nagios

I need to checking IP:PORT by ping, so I find out check_hping plugin to nagios. I'm trying to add it to the nagios core 4. http://exchange.nagios.org/directory/Plugins/Network-Protocols/ICMP/...
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2 votes
2 answers
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nagios NRPE CHECK_NRPE: Socket timeout after 10 seconds

Getting following error on nagios server root@VMb:/usr/local/nagios/libexec# ./check_nrpe -H 54.255.1.99 -n CHECK_NRPE: Socket timeout after 10 seconds.
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4 votes
2 answers
38k views

nagios nrpe dameon check_nrpe plugin missing

I installed nagios nrpe on a remote machine from Ubuntu repository sudo apt-get install nagios-nrpe-server , and plugins with: sudo apt-get install nagios-plugins-basic nagios-plugins nagios-...
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1 vote
1 answer
910 views

nagios configuration make error

I'm configuring nagios on ubuntu 14.04. When I use this command inside downloads: make all Appear this error: make: * * * No rule to make target 'all'. Stop. Any solutions?
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-1 votes
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apache virtual host for nagios on ubuntu 14

I have just installed nagios on Ubuntu 14 LTS with Apache, i am accessing the site through example.com/nagios3, however i want to use a virtual host for access the nagios like nagios.example.com. what ...
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2 votes
2 answers
22k views

I don't receive mail notification using Nagios Core 4

I have a problem with automatically mail notification in Nagios Core 4 installed on Ubuntu 12.04 LTS (Precise Pangolin) server... I have tried to send mail with the nagios user and root user ...
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2 votes
1 answer
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Installing WMIC on Ubuntu Server 12.04 LTS

Has anyone had any luck installing wmic (wmi client) under Ubuntu Server 14.04 LTS? I tried following the document http://techedemic.com/2012/11/05/installing-wmic-in-ubuntu-12-04-lts-64-bit-desktop/ ...
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1 vote
1 answer
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Nagios remote execution problem libc-so-6-version-glibc-2-14-not-found

i have installed nagios core 4 on ubuntu server 12.04 lts.. everything working fine,, but... i have a problem with remote command to a remote linux (ubuntu server 12.04) pc! when i try to check a ...
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Nagios-Plugin "check_radius" missing in Ubuntu 14.04?

I recently updated our Nagios-Server from Ubuntu LTS 12.04.04 to 14.04 - despite I know that this migration is not supported. Everything works fine but our Radius-Check fails... and now I know why: ...
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1 vote
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Can I first install a package on Ubuntu, then add its PPA?

I am very new to Ubuntu. I just installed Nagios3 on Ubuntu 12.04: sudo apt-get install -y nagios3 Then I remembered I to add its PPA: sudo add-apt-repository ppa:nagiosinc/ppa So if I do sudo ...
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  • 141
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1 answer
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pynag package not showing up in apt-get?

I need to install pynag, following the readme: http://code.google.com/p/pynag/source/browse/README.md It says to use apt-get. But it doesn't appear it found any packages? sudo apt-get install python-...
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4 votes
1 answer
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configure: error: unrecognized option: -–with-mail=/usr/bin/sendmail while installing nagios 3.5.0

Following this installation guide when reach to the step: ./configure --with-nagios-group=nagios --with-command-group=nagcmd -–with-mail=/usr/bin/sendmail I got the following error: configure: ...
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4 votes
3 answers
16k views

Nagios showing "NOT FOUND" error

I have installed nagios package in my Ubuntu system. After opening the configuration page localhost/nagios3 i have succesfully logged in. After that when i select any option from the left side menu it ...
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Nagstamon doesn't show in Ubuntu 12.04?

I'm trying to do the nagstamon work on Ubuntu 12.04, but after setting my credentials only, the other setting I kept default, it doesn't show anywhere. I'm sure it's running 'cause of ps aux | grep ...
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