Having a Ubuntu or Linux Mint desktop without the UFW (short for Uncomplicated Firewall) is like buying a nice home without a front door. UFW, a host-based netfilter firewall, comes standard with Ubuntu and its derivatives like Linux Mint 21. The program comes in both CLI and GUI versions. True Read More
Since Generic Routing Encapsulation (GRE) VPN tunnels continue to remain on Cisco exams like CCNA and CCNP ENCOR, let’s demonstrate a quick configuration of a GRE tunnel. Why do we care about GRE? We care about GRE because it can encapsulate diverse network layer protocols that can be transported over Read More
If you’re a networking or sys admin student, you might want to know how to identify the DNS server address of your Linux system on the Command Line. DNS refers to the Domain Name System, which resolves domain names into IP addresses. In this case, we’re talking specifically about finding Read More
CCNA Test – 75 Questions 1) What is the configuration register that ignores the startup configuration file? A. 0x4142 B. 0x4214 C. 0x2142 D. 0x2123 E. 0x4212 2) Where does RIPv2 send its routing updates? A. 127.0.0.0 B. 224.0.0.10 C. 255.255.255.255 D. 224.0.0.9 E. 255.255.255.254 3) Identify two Link-State protocols: Read More
For anyone starting on the rewarding journey into computer networking, Packet Tracer is an indispensable learning tool. If you’re planning to take the Cisco Certified Network Associate (CCNA) ) exam, you must practice on the Packet Tracer networking simulation software from Cisco. Download Packet Tracer On Cisco’s Networking Academy web Read More
As a long time Linux desktop user, I’m often tempted to try out new distros to see if any of them can match my current favorite – Linux Mint. So as part of that experiment, I downloaded ElementaryOS 5.0, which debuted in October 2018, and installed it as a guest Read More