Nmap vs. pfSense

If you're a sysadmin, or anyone who's had to deploy network services, you've almost certainly had to use Nmap at some point or other. Need to see what devices are on your LAN? Nmap can tell you that. Want to check which ports your web server has open to the internet? Nmap is your friend.

Nmap is a powerful command-line tool and has many options that require some reading of documentation to get the best out of (although generally straightforward). If the thought of working at the command-line scares you (presumably not if you're reading this review), then you may want a much simpler tool, or at least check out Zenmap GUI.

Incentivized

I believe PFSense is well suited for both home lab environments as well as up to small to mid-size business environments on a tight budget. However, I would implore that anything in production requires the use of the authorized hardware that PFSense sells to receive support. However, in my experience, PFSense is a solid set-and-forget firewall solution.

• NMap provides a very fast and a very thorough network "sweep" that allows you to quickly map out exactly what's on your network.
• NMap is highly configurable. The "canned" choices are very good in most instances, but using various switches and options, you can create a very specific scan and get exactly the results you're looking for.
• NMap is easy to use. Even a new administrator will be able to use the graphical version (Zenmap) with efficiency right away.

Incentivized

• Easy to use. Good user interface design! Easy to understand and easy to set up.
• Lower hardware requirement. 3 years ago, we used an old PC to run it. Now, we have changed to a router device with Celeron CPU and 8GB RAM. It runs smoothly with a 1000G commercial broadband.

Incentivized

• The GUI version on Nmap could use some improvement with the options that are available to do scans. For example, they could make it easier to select options for the different types of scanning for people who are beginners
• There are no abilities to schedule a scan in the Nmap tool.
• An intensive scan sometimes takes too much time to complete.

Incentivized

• I did kind of mention a Con in the Pro section with OpenVPN.
• When I create a config for an employee other employees are able to login to that config.
• I could be doing something wrong when I am making it - I am not afraid to admit that as I am pretty new to all of this, but it seems like it builds a key and I would think the key would be unique in some way to each employee, but I could be wrong.
• I actually do not have a lot of Con's for this software - I did not get to set this up on our work network so I am not sure of any downfalls when installing.
• I installed this on my personal machine in a Hyper-V environment to get a feel for it before I started working on it at work and it seemed pretty smooth. I didn't run into any issues.

Incentivized

Nmap uses are very practical and I don't think there is a better tools for what Nmap does. It is open-sources that therefore there is no cost to use it. It offers a number of benefits, including but not limited to network mapping, port scanning and more. It is very reliable as a network scanning tool.

Incentivized

The pfSense UI is easy to navigate and pretty go look at. It is much better than some high dollar firewalls that just throw menus you you. The pfSense UI is quick and responsive and makes sense 99% of the time. Changes are committed quickly and the hardware rarely requires a reboot. It just runs.

Incentivized

There is a very large support community and a robust selection of add-ons and scripts. Once you get the use down this is one of the most powerful tools and you can find anything you are looking for as far as examples on the web. While not having official support its not lacking by any means.

Incentivized

pfSense+ basic provides "As Available" email support. pfSense+ Pro offers 24 hr turn around email support. pfSense+ Enterprise offers 24/7 phone support.

Incentivized

Alternatives to Nmap (other IP scanners) are often much more limited in what they can do; They often only allow you to scan a specific subset of ports or a limited number of IP addresses in one command. Nmap is unrestricted in that regard. What makes Nmap stand out above the rest, is the complete network analysis package you get with it. It allows IP scanner, network deep-dives, hardware analysis, vulnerability analysis, encryption detailing, and so much more, in one free application

Incentivized

Meraki has a unified management login for all devices, which is nice. It also has decent content filtering, both areas where pfSense is weaker. Where pfSense far ouclasses Meraki is in the ease of use and the other width of features. These include features such as better VPN interoperability, non-subscription based pricing, auditability, not relying on the infrastructure of a third party, more transparency of what's actually going on, easier to deploy replacements if hardware fails. Additionally, the NAT management for pfSense seems to be a bit better, as you can NAT between any network segment and not just the LAN segments out the WAN interfaces.

• Nmap with Wireshark is free, so it's been a great combo team to gather info and test.
• It's allowed us to avoid fines from false positives and to fix actual issues ourselves.
• Great for finding hosts, helps keep the network secure.

Incentivized

• pfSense can be installed on commodity hardware with no licensing fees. With a simple less than 10 minute restore time, on most hardware, it's an extremely inexpensive way to achieve the same results that some of the more expensive vendors provide.
• The easy to use interface has allowed configuration management to be preformed by lower level technicians with quick and easy training.

Incentivized