davethemaker

Category: Networks

  • Linux & MySQL/MariaDB

    It’s interesting because I have always been drawn to understanding the big picture of things, and back when I first shifted to IT, I was intrigued with working with databases (and left me feeling dissatisfied with solely front-end stuff). I’m circling back to that, now, as I continue my Linux journey, and I find myself…

  • OpenSSH & Raspberry Pi

    Here we connect one client (MacOS) to another client (rasbperrypi) on the same network (10.0.0.95/24). This can be done using SSH, which runs on port 22, far more secure than telnet. Here’s what I did to make this happen: On the raspberry pi: Then from the mac, I ran this in the CLI: Voila! I…

  • Compression: Tar, Gzip, Bzip2, Compress

    Given two files, sample1.txt and sample1.sh, that I want to archive, which means combining files together (different than compressing them): $ tar -csv ThisIsACompressedTarFile.tar sample1.txt sample1.sh This gives us: We can peek into the Tar file without extracting the files using -t option We can extract those files using the -x (extract) switch: Now that…

  • Ping options

    Here’s a handy cheatsheet for the ping command:

  • NAT on a wireless router

    I’m liking Cisco’s Packet Tracer tool- there’s a huge difference between learning these concepts in a book or by watching a video, and actually (virtually) configuring a wireless router and being able to create a simulation where packets flow between a client and a public IP server. In one of today’s exercises, I ran that…

  • A Good Sunday Morning

  • Linux + Humor

  • On Secure World Conference

    I had the privilege of attending the Secure World security conference these past two days, and really enjoyed it. Maybe it’s the vestiges of the pandemic, but I initially found myself feeling somewhat reluctant to be in such a large event, but I found people to be generally really approachable and friendly. I decided to…

  • Cisco and IPv4 and Subnets

    I’m contnuing the Network module- I’m impressed with Cisco. It’s a really well done course. Mostly, I just wanted to share this picture because it looks pretty cool! 🙂

  • Configure a Wireless Router and Clients using Cisco Packet Tracer

    Continuing the instruction within Cisco’s Networking Academy, this morning I worked on setting up a situational home network- using virtual coaxial cables to connect the home router with the cable splitter, which in turn was also connected to the smart tv. From the home router, which included a switch with four ethernet ports and a…