I'm also familiar with Cacti. If you compare it with Cacti or any other solution, Nagios is the best.

I'm trying to use the SolarWinds solution as well. It's very easy to deploy if you compare it with other solutions. The efficacy and the time it takes to deploy this solution are very short compared to Cacti or SolarWinds or other solutions. Even the cost and lack of complexity are great.

We used a solution previously, but I don't recall what it was.

We previously used ManageEngine.

I'm also familiar with Zabbix, for example, as it's quite the same concept. The difference is that maybe Nagios was a little bit easier for deployments.

We did a POC with DataDog as well and have begun to work with BigPanda.

Cost was a big factor, but also compatibility of various legacy OSs which still can be managed by Nagios far better than anyone else as an open source.

Yes, I have used other solutions. I switched to Nagios, because Nagios is not linked with any brand that's independent. This is good because you can monitor any brand of switches, routers, servers, central phones, etc.

I previously used Nagios Core but switched because there was no DUI, so we had to do every configuration on the line.

I have used other solutions from vendors such as McAfee, but Nagios XI is the best solution when compared with others.

We are currently using Zabbix.

I use Solarwinds and CACTI before using Nagios but both of them has some concerns.

We cannot add any feature to Solarwinds because it is none open source

CACTI is graphing tool and it cannot help us to alerting issues. Some plugins are implemented for this purpose for CACTI such as Thold plugin but it has not complete feature such as Nagios. 

I am also using KS-Soft Advanced HostMonitor, but only for monitoring the up or down status of the machines. It has a much better icon view of the dashboard. When our customer wants to look at their data center and see the status of all branches and all servers, it shows a much better, color-coded graphical form. I am in the process of purchasing additional licenses for HostMonitor so that I can have multiple dashboards running from a single machine.

I did not switch solutions, but I am always open to products that offer a better user interface.

I originally used the Nagios Core solution (first one out of the gate many years ago) which had no GUI for system configuration. One had to manually edit system configuration files to customize the Nagios system for specific functional needs.

Prior to using Nagios for monitoring we had grown our own monitoring solution which latter became the company NOCpulse and was picked up by RedHat. Previous to that I used various other homegrown monitoring methods.

I previously used HP SiteScope, Nagios Core 3, Xymon and Zabbix. I didn't choose Nagios, my customer choose it and I implemented it. My prefered tools is Zabbix for the moment.

We did not previously use a different solution.

Yes, we used a paid monitoring tool and used to pay a lot of money. Nagios saves a lot of money for the company.

I have worked on various tools in past like Spiceworks, Idera, and ManageEngine. We switched to Nagios for lower cost and good performance.

Nagios XI was chosen because it was a flexible tool that happens to be open source and has the capability to provide a holistic view of all the systems configured on the network. It also comes with a good Web Interface/Dashboard to update the system as needed.

No previous solution used.

No, I started with Nagios. I've used other apps also like Microsoft SCOM (which is not very good), Zabbix (which is very decent), Tivoli (which is also not very good), HP OpenView (which is vast and requires almost a duplicate infrastructure to run to its full extent), Icinga (a very good clone), Centreon (haven't used it much but it seems solid enough), but I've always ended up using Nagios.

We migrated away from being Windows centric. Their prodcut, although quite powerful, it was Windows centric and as our fleet of Linux servers increased an alternative was needed to suport multiple operating systems.

We previously used the free version of Nagios and decided that the commercially packaged version Nagios XI was well worth the cost and reduced the admin overhead significantly.

We did not use another solution prior to this one.

We are resellers of Forcepoint and Symantec DLP.

I started with this product.