Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Analytics //

Security Monitoring

1/9/2020
09:52 AM
100%
0%

7 Free Tools for Better Visibility Into Your Network

It's hard to protect what you don't know is there. These free tools can help you understand just what it is that you need to protect -- and need to protect yourself from.
Previous
1 of 8
Next

What's on your network? It's a simple question, but one that countless security and network management teams struggle to answer because most enterprise networks are dynamic, living things that change at a rapid pace. That change is the key to adapting to a changing business environment — and key to criminals' ability to breach the perimeter and gain access to enterprise assets.

Security teams tend to have a very good idea of what the network looked like on the day it went live. Nevertheless, conversations with consultants (and over drinks at conferences) overflow with complaints and confessions about how those same teams are ignorant of what the network looks like right now. That's a problem. And it becomes a bigger problem when it runs into the reality of the way that criminal hackers work.

Criminal hackers specialize in understanding how a targeted network is configured today. The extent to which they understand every component and interface is the extent to which they can find exploitable vulnerabilities. And those weaknesses are even more vulnerable if the network owner doesn't know they exist.

So one of the first steps in protecting a network is understanding precisely what is there to be protected. There are a number of different commercial products that can help provide an inventory and map of a network. But for many smaller organizations, even lower cost tools can be difficult additions to the security budget. That's why the focus of this article is on free products that provide network visibility and monitoring.

Some of the products on this list are open source and some are not. Several of them may require an investment of time and effort to make up for the lack of a purchase price. Regardless, each of these could be a way for a security team to either get its first solid picture of its current network or augment the view provided by other tools. In either case, visibility is always a good thing.

We're curious; are there free or open source network discovery and monitoring tools that you use? Are there any that you've tried and abandoned? We'd like to hear about your experience — let us know in the comment section, below!

(Image: GoodIdeas VIA Adobe Stock)

 

Curtis Franklin Jr. is Senior Editor at Dark Reading. In this role he focuses on product and technology coverage for the publication. In addition he works on audio and video programming for Dark Reading and contributes to activities at Interop ITX, Black Hat, INsecurity, and ...
View Full Bio
 

Recommended Reading:

Previous
1 of 8
Next
Comment  | 
Print  | 
More Insights
Comments
Oldest First  |  Newest First  |  Threaded View
talmadge607
0%
100%
talmadge607,
User Rank: Apprentice
1/9/2020 | 10:35:50 AM
Why not Centreon?!
Hi, great post! You talked about Zabbix, Nagios Core ... Why not Centreon ?! Open source and a great community!
tdsan
50%
50%
tdsan,
User Rank: Ninja
1/9/2020 | 3:09:16 PM
Re: Why not Centreon?!

Interesting, I would add "OpenNMS" to the list as well.




 

Todd

 

RuskinF
50%
50%
RuskinF,
User Rank: Apprentice
1/22/2020 | 11:25:43 AM
Re: Why not Jarvee?!
There have been so many options apart from Centreon like Jarvee Hosting, a closed source platform for improving the network visibility of your brand.

Correct me if I am getting wrong or posted in the wrong article.
COVID-19: Latest Security News & Commentary
Dark Reading Staff 9/21/2020
Cybersecurity Bounces Back, but Talent Still Absent
Simone Petrella, Chief Executive Officer, CyberVista,  9/16/2020
Meet the Computer Scientist Who Helped Push for Paper Ballots
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/16/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-25514
PUBLISHED: 2020-09-22
Sourcecodester Simple Library Management System 1.0 is affected by Incorrect Access Control via the Login Panel, http://<site>/lms/admin.php.
CVE-2020-25515
PUBLISHED: 2020-09-22
Sourcecodester Simple Library Management System 1.0 is affected by Insecure Permissions via Books > New Book , http://<site>/lms/index.php?page=books.
CVE-2020-14022
PUBLISHED: 2020-09-22
Ozeki NG SMS Gateway 4.17.1 through 4.17.6 does not check the file type when bulk importing new contacts ("Import Contacts" functionality) from a file. It is possible to upload an executable or .bat file that can be executed with the help of a functionality (E.g. the "Application Star...
CVE-2020-14023
PUBLISHED: 2020-09-22
Ozeki NG SMS Gateway through 4.17.6 allows SSRF via SMS WCF or RSS To SMS.
CVE-2020-14024
PUBLISHED: 2020-09-22
Ozeki NG SMS Gateway through 4.17.6 has multiple authenticated stored and/or reflected XSS vulnerabilities via the (1) Receiver or Recipient field in the Mailbox feature, (2) OZFORM_GROUPNAME field in the Group configuration of addresses, (3) listname field in the Defining address lists configuratio...