Day16 - Linux Shell Scripting Day

Hello All!

Okay, I know shell scripting is NOT part of CCNA. So you are wondering why Day 16 I'm covering shell scripting. Well, truth to be told, having CCNA cert alone is probably going to be just the starting point of a very long journey. And if you don't know yet, there are more than just one operating system, floating around in the industry. Knowing your way around Linux and shell scripting for Linux is going to be essential for job hunting. I was highly recommended by my friends and mentors to pick up shell scripting. So on my off time away from cisco training. I'm focusing on learning the basics of linux shell scripting and hopes to be fluent in it and use them on my next job!

Before I start, I'd like to thank Madhur Bhatia and his youtube channel, which can be found HERE. He is a pretty smart guy and has various programming/scripting languages skills in which he creates tutorials for. So if you don't want to end up learning from me, go watch his videos!!!

As always, learning a new language is a long and arduous process. But knowing the steps that it takes to become fluent in it can increase the productivity of your learning. I grew up being a bilingual child and so I understand the meaning of learning a second (actual) language and what it takes to build my way to a conversational level. It will be the same for programming languages. I think Madhur nailed it when he said that the structure of the learning should be as follows:

Words
Sentences
Syntax
Paragraphs
Essays

Mastering each prerequisites will ensure the success of the next step. As I begin my journey onto Linux shell scripting, I will be documenting my learning process, compiling ppt presentations of all the commands to centralize all of my knowledge, and share it with the rest of you. Thank you all for reading my blog,

Here is the Shell Script 101 Presentation!

Day15 - Port Security

Hello! On this festive day, I'll be covering what I've learned so far about port security. This was a topic that I felt extremely weak at during my ICND 1 exam. I'm hoping to use this chance to strengthen my understanding of the types of port security and violation rules and recovery methods. Enjoy!

Day14 - OSPF Virtual Links and Authentication (Not sure what happened to day 13)

Hello! Welcome to the last day of my video training on OSPF. Today's video will cover OSPF virtual links, and also authentication. Remember that authentication errors, whether it be mis-match in password, or lack of authentication (on either side) or even the wrong type of authentication can cause neighbor relationship to break in your OSPF.

In my previous videos, I discussed the concept of an ABR. In today's video, we will talk about how to turn non ABR routers into ABR like routers by using virtual link. Virtual link is a method that we can use to connect and virtually extend Area 0. This way, if we have multiple areas that are not physically adjacent to Area 0 can have a way to connect to Area 0.

Please enjoy!

Day12 - Workflow + OSPF Multi Area Lab

Starting the day with a workflow video. Also I'll attach the follow up video talking about OSPF multi area and why it's important to setup multi- area OSPF Networks.

Thanks for watching!

Day11 - OSPF Basics - Multi-Router Single Area Network - Final part

This final video will conclude the OSPF Basics with multi-router single area setup. In this video, I've actually spent quiet a bit of time backtracking and troubleshooting an issue that was fairly obvious as well. Please comment on it if you guys think how I can make this better! Thanks!

Day11 - OSPF Basics- Multi-Router Single Area Network

Welcome back! In today's video(s), we will go into a 2 Area....actually, I can't even finish that statement. What actually is going in this lab is that we have a multi-router setup under the Area 0. Defined by and constrained to OSPF process 1. And our fifth router, BB1, is actually routed with a static path. 

I'd like to think this was a real good exercise in troubleshooting, I actually made some erroneous mistakes that, at the end of the day, I actually had to make a second, albeit short follow up videos. So enjoy!

Finally the OSPF Video(s) that I wanted to make are uploaded!

Hello!

Today I will share my first set of OSPF configuration videos (Basic configs really). The process and creation of these videos has helped me in fortifying the troubleshooting logic behind ospf troubleshoots.

Today is all about OSPF

Hello Everyone!

No videos today, but an ongoing OSPF - Open Shortest Path First video + Presentation is in the works. I'm going to link the presentation on here so others can comment on. So here it is! Video on the first section of OSPF will come tomorrow!

OSPF - All you need to know...