Tag: Nagios

  • Nagios monitoring on AWS Autoscaling group instances

    Nagios monitoring on AWS Autoscaling group instances

    Setting Nagios monitoring alerts on instances behind the AWS Elastic Load Balancer (ELB) is always tricky part. In this post, we will learn how we can monitor the instances which are created by autoscaling policy and running behind the ELB. We expect our reader do have good knowledge on scripting, nagios and AWS comptuting. This […]

  • Send nagios report as pdf file via email

    Send nagios report as pdf file via email

    The tutorial will give you idea, how you can send Nagios Report as pdf file via email. We will achieve this requirement, with the help of script and using wkhtmltopdf command line tool. We will set the Nagios Report script in crontab and send it via email to receiver person/team. In our previous post we […]

  • Nagios Plugin : check ssl certificate expiry date

    Nagios Plugin : check ssl certificate expiry date

    We have created a Nagios plugin called check_ssl_cert_expiry . The nagios plugin will send the alert (warning/critical) before SSL Certificate expiry date. We have tested this plugin to check HTTPS website URL. It is working very well. Why we require check_ssl_cert_expiry nagios plugin To know how many days are left before date of expiration of […]

  • check_ELBinstance : Nagios Plugin to check instances attached with ELB

    check_ELBinstance : Nagios Plugin to check instances attached with ELB

    Recently I created a new nagios plugin which check the no. of instances attached in ELB (Elastic Load Balancer) . Here we are talking about ELB in AWS (Amazon Web Service) Cloud. Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud. Details of check_ELBinstance nagios plugin Requirement : […]

  • How to install Nagios on CentOS 7 / RHEL 7

    How to install Nagios on CentOS 7 / RHEL 7

    In this tutorial we will learn about how to install Nagios 4 on CentOS 7/RHEL 7 . To install nagios we will use its stable source code, which is avaible at Nagios site. Nagios is one the most popular, stable and reliable monitoring tool. It is available as free and Open source package called Nagios […]

  • How to install Nagios 4 from source on Ubuntu 14.04 LTS

    How to install Nagios 4 from source on Ubuntu 14.04 LTS

    In this tutorial we will learn, how to install Nagios 4 from source on Ubuntu 14.04 LTS. In this practical I have seen some problems while Nagios core 4 installation. Because in Ubuntu 14.04 LTS is shipped with new Apache 2.4 version ,it was quite obvious some extra steps we have to do. I will […]