Category
Network Security
Level
Intermediate
Number
79
When it comes to keeping networks safe, tools like Nmap, Masscan, and Nessus are super helpful. Nmap is great for finding out about hosts and services, like what ports are open and details about the system.
Masscan is speedy at scanning big networks, perfect for checking open TCP ports quickly.
And Nessus is awesome at spotting vulnerabilities in networks and giving detailed reports to help tighten security.
To make sure your network stays safe from potential threats found by these tools, try these simple strategies:
- Turn off any services you don't use, such as SSH and SMTP, to stop them from being exposed.
- Set up your firewalls to block any traffic you don't want coming in.
- Use Nessus to get tips on updates and closing ports for better security.
- Keep your Intrusion Detection Systems (IDS) up to date with the latest rules.
- Regularly scan your network for vulnerabilities.
- And use TCP Wrapper, a handy tool that lets you control who can access your network services based on IP addresses or domain names.
Summary:
- Nmap, Masscan, and Nessus are essential tools for network security, helping find hosts/services, scan for open ports, and spot vulnerabilities.
- To boost security, turn off unused services, configure firewalls, use Nessus for updates, keep IDS updated, scan regularly, and use TCP Wrapper for access control.