Compare Nagios vs Tenable

Nagios

Based on 126 reviews.

Tenable

Based on 249 reviews.

Latest Research

Buyer's Guide

Nagios XI vs. Zabbix

June 2026

Zabbix vs. Nagios XI

Updated: June 2026

Buyer's Guide

Nagios Core vs. Nagios XI

June 2026

Nagios XI vs. Nagios Core

Updated: June 2026

Overview

Nagios, an open-source computer-software application, monitors systems, networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches, applications and services. It alerts users when things go wrong and alerts them a second time when the problem has been resolved. Ethan Galstad and a group of developers originally wrote Nagios as NetSaint. As of 2015 "Agios" also transliterates the Greek word, which means "saint".

Tenable Network Security is a developer of vulnerability detection systems. Tenable Network Security is an American network security company, co-founded by Ron Gula, Jack Huffard, and Renaud Deraison in 2002.

Sample Customers

Nagios XI

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.

Nagios Core

Airbnb, Cisco, PayPal, FanDuel

Popular Solutions

Nagios XI

4 reviews

Nagios Core

5 reviews

Nagios Network Analyzer

0 reviews

Tenable Nessus

13 reviews

Tenable Security Center

8 reviews

Tenable Vulnerability Management

7 reviews

Top Industries

Financial Services Firm

Comms Service Provider

Manufacturing Company

Construction Company

Financial Services Firm

11%

Manufacturing Company

10%

Government

Computer Software Company

Quotes From Member Reviews

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Most Helpful Reviews

Emmanuel Appiah Boateng
Network and Security Engineer at a educational organization
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for...
Read full review of Nagios XI »
Syarul Idzuddin Adzmi
Operation Director at Digital Pulse Sdn Bhd
In my company, we use Nagios Log Server as our data center.
Read full review of Nagios Log Server »
Amit Rane
Testing Staffing Manager at Capgemini

Read full review of Nagios Network Analyzer »
SyarulIdzuddin Adzmi
Operation Director at Digital Pulse Sdn Bhd
We use it for this specific client, they've deployed multiple instances of it across various locations to facilitate...
Read full review of Nagios Fusion »

Review 1 of 4

Chethan Gowda
Windows Security Patching Operation III (Cyber Operations) at CBTS
We usually use Tenable Vulnerability Management for vulnerability scannings, and we get the reports from Tenable to...
Read full review of Tenable Vulnerability Management »
Jaya Shanker
IT Security Manager at a insurance company
We use Tenable One Exposure Management Platform for vulnerability management in our internal application and external...
Read full review of Tenable One Exposure Management Platform »
DragosCernat
Information Security Architect at WSP
We had other solutions that we used. One solution was that we did not have something exactly similar to what Element...
Read full review of Tenable Cloud Security »
Arun Seetha
Cyber Security Architect at a security firm
I have been dealing with Tenable.io Container Security for almost four to six months.
Read full review of Tenable.io Container Security »
Anonymous User
Head of Information Security at a consultancy

Read full review of Tenable Security Center »

Review 1 of 5

Customer Service

Sumanth Arshanapally
Senior Analyst at a tech vendor
I did not use the support from the vendor.
Read full review of Nagios XI »
Rizwan Shabbir
Systems Administrator at Mentor Graphics
We do not have support for this solution, it is free.
Read full review of Nagios Core »
FakhruddinLokhandwala
Solutions Architect at NTT
I rate the technical support an eight out of ten.
Read full review of Nagios XI »
Azam S M
Infrastructure Lead at Danat Fz LLC
Because the solution is open source, there's no direct support from Nagios. We post our questions to the community...
Read full review of Nagios Core »
Constant Assoukpe
Administrateur reseaux at Orange
It's very stable, so I haven't needed to contact technical support.
Read full review of Nagios Core »
Manoj Nair
Tech consultant at select softwares
No vendor involvement
Read full review of Nagios Core »
MohamedEl Azzouzi
Production Systems Engineer at Enwe
Technical support isn't very good. You can't find much help on the forums. You need to look things up by yourself...
Read full review of Nagios Network Analyzer »
Anonymous User
Computer Engineer at a tech services company
For technical support, I think I would try to rate it somewhere around seven out of ten.
Read full review of Nagios Core »
Hattab Mahdi
Assistant Director at unpa
I have not needed to contact technical support. There are webinars and other information available that I have made...
Read full review of Nagios XI »
Aymen Dridi
Systems and Virtualization Engineer at Altelios Technology Group
We use the open-source version of this solution and there is a large community that can provide support for any of...
Read full review of Nagios Core »
Anonymous User
Software Engineer at a transportation company
I haven't tried to contact support. I was searching on the support forums, but that was not for me. I tried many...
Read full review of Nagios Core »
Hattab Mahdi
Assistant Director at unpa
Customer Service: Customer service is good. Technical Support: Technical support is the best.
Read full review of Nagios XI »
Anonymous User
System Administrator at a hospitality company
With the open source forks, the community is vast and so is the knowledge around the product. Because of this, even...
Read full review of Nagios XI »
Anonymous User
Software Test Engineer at a comms service provider
I didn’t require any service as the documentation is good and most questions are answered on any number of forums.
Read full review of Nagios XI »
Mario Domeniconi
CEO at Netability Singapore Pte Ltd
The technical support is quite good.
Read full review of Nagios Network Analyzer »
UweBergemann
Administrator at self-employed
I have not contacted technical support for the solution.
Read full review of Nagios Core »
Hattab Mahdi
Assistant Director at unpa
I think it's average. It's not fast, but I think it's okay. For the price, I think the quality of support is normal.
Read full review of Nagios XI »
Anonymous User
Technology Innovator and Entrepreneur at a tech services company
In general, tech support is available as needed but it is not inexpensive. Response times are generally within 24...
Read full review of Nagios XI »
Anonymous User
Network Engineer at TLCWEB S.R.L.
Customer Service: I haven't had to use it. Technical Support: I haven't had any need to use it.
Read full review of Nagios XI »
Anonymous User
Constructor of the computer systems at a security firm
Customer Service: I only have the free version, which does not have customer service. Technical Support: I only have...
Read full review of Nagios Core »
Anonymous User
Partner Technical Support & Escalation Manager at a tech vendor
I have not contacted them for a long time.
Read full review of Nagios Core »
Anonymous User
Operational Lead at a government
The solution's technical support is okay. I am always with the people on the support side.
Read full review of Nagios XI »
Anonymous User
R&D Support & Monitoring, IT Production at a tech vendor
I haven't had any experience with technical support.
Read full review of Nagios XI »
Anonymous User
Head of IT, Projects and Organization at a financial services firm
Technical support is very good but is very expensive. It is becoming more and more expensive just like the upgrade....
Read full review of Nagios XI »
DHINIL KUTTIKADAN
Unix Administrator at emaratech
Support could be better. The main issue is that their support is in the US. They are only available in a certain...
Read full review of Nagios Log Server »
Dario Leon
CEO - CIO - CTO - Senior Consultant Unix/Linux at a tech services company
10 out of 10.
Read full review of Nagios XI »
reviewer0725215
Manager, Information Technology Monitoring at a tech services company
We didn't get good answers from the solution's technical support.
Read full review of Nagios XI »
Anonymous User
Principal Engineer at a tech vendor
An eight out of 10, because technical support always has room for improvement.
Read full review of Nagios XI »
DHINIL KUTTIKADAN
Unix Administrator at emaratech
The support is good. I would rate them a seven out of ten.
Read full review of Nagios XI »
Nishith Vyas
Sr. System Administrator at Guj Info Petro Limited
Nagios Core, which is an open source product has very limited scalability features. Large Nagios solutions have...
Read full review of Nagios Core »

Review 1 of 30

SumeshKumar
Manager Cloud Security at Hitachi Systems, Ltd.
Tenable Cloud Security's technical support is good. They can help you out if you get stuck with some issues.
Read full review of Tenable Cloud Security »
Jairo Willian Pereira
Information Security Manager at a retailer
It SLA/support are enough.
Read full review of Tenable Nessus »
Ali Al-Mahrooqi
Manager at a financial services firm
Technical support for this solution was good. They were responsive.
Read full review of Tenable Nessus »
Jahanzeb Feroze Khan
Assistant Manager Network Security at Institute of Business Administration, Karachi
Support doesn't understand the issues and cannot arrange resources per our time.
Read full review of Tenable.io Container Security »
Mahmoud_Mohamed
Infrastructure Engineer at IP Protocol INC
The technical support services are good.
Read full review of Tenable OT Security »
Trirong Phuaythip
Solution Consultant at Westcon-Comstor
The tickets are passed quickly. Their support manager works proactively in scheduling meetings and solving the issues...
Read full review of Tenable Security Center »
Mani Bommisetty
Infrastructure patching Manager at a manufacturing company
Technical support from Tenable is rated six out of ten. It needs improvement in response time and addressing feature...
Read full review of Tenable Vulnerability Management »
Prajot Nair
Senior Manager -Cloud Security at Capgemini
Tenable doesn't provide support beyond documentation.
Read full review of Tenable Vulnerability Management »
OmkarZarapkar
Manager II at a insurance company
Technical support is very good and responsive. A few months back, we utilized their assistance for configurations on...
Read full review of Tenable Nessus »
Md. Shahriar Hussain
Information Security Analyst at Banglalink
There were no delays from customer support. They usually give instant responses for both online and local support.
Read full review of Tenable Security Center »
Rafael Ustariz
IT security consultant at Netready LATAM
Tenable SC support has been very helpful.
Read full review of Tenable Security Center »
Yusuf_Hashmi
Chief Information Security Officer at Jubil
The customer service team is pretty supportive. They have supported me multiple times, and I would rate them eight...
Read full review of Tenable One Exposure Management Platform »
Yusuf-Hashmi
Sr. Director - Group Head - IT Security (CISO) at Jubilant Organosys Ltd., India, Leading Chemical M
I haven't used Tenable.io support, but my team has, and I haven't heard any complaints thus far.
Read full review of Tenable Vulnerability Management »
Mahmoud Elhamaymy
Professional services team lead at a tech services company
I have dealt with technical support once. They were very good and very responsive.
Read full review of Tenable.io Web Application Scanning »
OniRahman
Technical Consultant at a tech consulting company
I rate customer service and support a six out of ten.
Read full review of Tenable.io Web Application Scanning »
Pov Men
Network Security Engineer at np secure
I am satisfied with technical support.
Read full review of Tenable SecurityCenter Continuous View [EOL] »
DragosCernat
Information Security Architect at WSP
Working with Element is straightforward and efficient. For comparison, while working with Bitsight is not difficult,...
Read full review of Tenable Cloud Security »
Anonymous User
VP - Risks, Audits & InfoSec at a tech services company
We did reach out to technical support. I think it was just once, but it took them a long time to respond. Maybe it...
Read full review of Tenable Nessus »
Anonymous User
Chief Executive Officer at a outsourcing company
We can contact technical support using their web console. We can log a support ticket as end users, although we...
Read full review of Tenable Nessus »
Anonymous User
Chief Hacking Officer at a security firm
We haven't had the need to contact technical support.
Read full review of Tenable Nessus »
Gintaras_Navickas
Cyber Security Officer at Gudu
I consulted with support about half a year ago. They connected through TeamViewer and helped me resolve the problem.
Read full review of Tenable Nessus »
Anonymous User
Security Architect at a logistics company
Tenable's technical support is good, except for things that involve some of the custom development work that we've...
Read full review of Tenable Nessus »
Arun Seetha
Cyber Security Architect at a security firm
I am talking about their technical support, and it is good. However, there are times when I am dealing with certain...
Read full review of Tenable.io Container Security »
Vinayaka R
Security Analyst at a consultancy
The technical support team responds promptly to basic issues. However, when faced with major issues or more complex...
Read full review of Tenable Vulnerability Management »
Dobrisa Dobrenic
Assistant Director for Computing and Network infrastructure at SRCE
We haven't contacted Tenable Nessus for assistance or questions because we haven't encountered any serious issues,...
Read full review of Tenable Nessus »
HARI EDARA
IT Manager at State of Texas
Technical support is good. We have 24/7 support from them. There are some of sales managers who are the bridge...
Read full review of Tenable Vulnerability Management »
Hatem Langar
Security Analyst at TOPNET
We have encountered some problems with the technical support from Tenable; I would rate it a five out of ten. It is...
Read full review of Tenable.io Web Application Scanning »
SivaMurali
Senior Cybersecurity Consultant at a tech services company
Customer service and support with Tenable is good. They are knowledgeable and responsive. I would rate their service...
Read full review of Tenable Security Center »
DivyaJyoti
0
The solution's support is okay, but it could be more customer-friendly. The people providing support have knowledge,...
Read full review of Tenable Vulnerability Management »
Anonymous User
Security Consultan at a security firm
The support ticketing system needs improvement. Whenever we create tickets, they are directed to a general support...
Read full review of Tenable.io Web Application Scanning »

Review 1 of 30

Technical Support

No Data Available

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