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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…
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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…
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Ping options
Here’s a handy cheatsheet for the ping command:
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URI, URN, URL- diffs
I’m going to post this here because it’s a great reference!
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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…
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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…
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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! 🙂
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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…
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