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Protect your network from cyber attacks. Malcolm Shore shows how to use the latest tools to discourage and combat hackers, phishers, and snoops attempting to infiltrate your Windows and Linux systems. Learn what forms cyber attacks can take, and the two most common types of protection you can build into your system: antivirus protection and firewalls. Then learn how to scan your network for suspicious files, detect intruders with Netcat, and identify vulnerabilities at the host level with Nessus scans. Malcolm also shows how to avoid common security mistakes and monitor packet-level activity on your network.
The final feature I'll cover is scheduling scans. I'll select Schedules using the link on the top menu. There are currently no schedules, let's add one. We set up the schedule using three sub-options, Basic Settings, Schedule Settings, and Email Settings. At the Basic Settings, I'll add the name, WeeklyPatchCheck. And call this, A weekly patch check for the debian cluster, in the description. I'll keep PatchCheck as the policy and set the folder to Raspbian Cluster.
In the Targets panel, I can now enter the two targets, 10.1.1.15 and 10.1.1.51. Then I'll select Schedule Settings. If I click on the drop-down list at the launch prompt, I can see our options for scheduling. Now, On Demand, Once, and Daily, Weekly, Monthly, and Yearly. I'll select Weekly. Additional prompts appear for me to set the start time and time zone, and the day of week to run. I'll set this for 2:00 p.m., every Tuesday.
I can also select anything from one to 20 weeks as the interval between runs, using the Repeat Every prompt. I'll leave that as Weekly. I'll skip the email schedule and I'll press Save. The scan schedule is recorded and activated. As soon as the start time is reached, the scan will commence. And we'll see a number against the scan's menu link at the top and by the Raspbian Quest folder, just like we did with the manual scan. That's it. We've taken a quick tour through Nessus and learned how to set up a policy, and run or schedule a scan to check what vulnerabilities exist in our systems.
There's much more to using Nessus, but for now, you've learnt enough to be able to benefit from regular checking for vulnerabilities and missing patches.
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