Linux and open ports with daemons

Does your server have exposed ports? Learn how to find out in this course.

2 videos  //  17 minutes of training

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Course description

Explore the wild world of Linux ports. Learn what you need to know if ports on your server or a remote server are exposed. Explore why is a bad idea to run services that expose ports as the root user.

Course syllabus

Linux Ports, Daemons and port scanningDuration: 5:06

What is port scanning and why is it a useful tool? An explanation of daemons and ports on Linux and how they relate to network security.

More about ports on LinuxDuration: 12:23

A look at high versus low ports in Linux and why you want to run daemons on low ports.

Meet the author

Jason Welsh

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Jason Welsh started experimenting with Linux back in 1994 when it was still packaged on floppy disks. Over the years, he has run just about every flavor of Linux there is as well as a few years trying out FreeBSD.

He has been administering Solaris and Linux systems professionally since around 2003, supporting everything from Linux running on the server hardware to storage to VPNs and firewalls. He’s always on the lookout for new and exciting things to try out in his home lab, which runs a Proxmox server. He’s tolerant of all Linux distributions, but the current favorite is Arch or Manjaro Linux.

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