I have been using Nagios Core for 11 years.

I have used this solution for five years.

I have been using the solution for two years. 

I have been using this solution for 15 years. I am a system integrator so I recently installed the latest version 4.4.17.

So, I work with the latest version of Nagios Core. 

I have been working with Nagios Core for two years.

We have been using the solution for one year.

I've been using Nagios Core for three to five years.

I have been using Nagios for more than five years.

I have been using Nagios Core for over a year.

I have been working with Nagios Core for the past five or six years.

My company has worked with Nagios Core for the last six years.

I've been using Nagios Core for almost two years.

I've been using this solution for six years. 

I have been using Nagios Core for approximately five years.

We use only Nagios Core.

I have been using this solution for four or five years.

I have been using Nagios Core for approximately eight years.

We've been using Nagios Core for about five years. 

I have worked with it as a monitoring and alerting solution for 10 years accross two jobs.

I've used Nagios since 2008 year, and I'm really pleased with it. It helps me a lot with my system administrator work. I used it on my local servers initially, then I started to work at an ISP where I implemented Nagios. It's still in use there.

5-6 years

We've used the solution over the last 10 months or so. It's been almost a year. We initiated the product in 2020.

I've been using it for four years.

I've been using it for five years.

I've been using it for two years.

I've been using it for six years, and we're currently planning to upgrade it.

I've used it for around 10 years

I have used Nagios with the Adagios interface for two years.

I have been working with Nagios Core for a couple of years.

We are using the latest version.

I've been using it for about five years.

I've used it for six years.