Arlon's CSUMB Blog

Arlon's CSUMB Intro to Computer Networks CST-311 Module 4 Learning Journal #4/#36 for the week Wed 09/22-Tues 09/28, year 2021 This week we finished our group assignment, teamwork was excellent, team members found bugs where there weren't supposed to be bugs, and we got it all done well and on time. This is a pinger client written in python - they give you server python that's a pinger responder and we wrote a client - a little research on how python sockets should timeout, a little research on python language details, and it runs in our virtual software-defined network environment, MiniNet. We had a midterm test this week and what was cool is, in some classes it can sometimes be a bit of a mystery what we're going to get tested on, especially in classes with a barrage of information overload like this class has to a degree. But in this class, they gave us plenty of practice problems to use ahead of time to practice our knowledge on the material and warm up f

Arlon's CSUMB Intro to Computer Networks CST-311 Module 3 Learning Journal #3/#35 for the week Wed 09/15-Tues 09/21, year 2021 This week we got a new group assignment, threads waiting for ping responses in python, and immediately utilized excellent team work to nearly complete the project in half the time we were allotted. I don't usually say this but in this case we literally all helped reason through everything and got most of the spec completed more quickly as a team than I was going on my own. It's not completely done but we got super far, super quickly, and I personally was stumped on what I was trying to figure out until team members helped me reason through and figure it out. We are trying out codeanywhere and it has some glitches, some bad glitches, but it's such useful software (like google docs but with code-capability) that we're basically overlooking it's flaws and quirks. I even overlooked them to the point where I gave them money - the

Arlon's CSUMB Intro to Computer Networks CST-311 Module 2 Learning Journal #2/#34 for the week Wed 09/08-Tues 09/14, year 2021 This week we were able to finalize the sockets with python program both with TCP and UDP and also running off Mininet, I did a third way running the server programs from Mininet the OS and outside the VM my computer's localhost was the client - you have to port forward that port for that to work, with the protocol you're using. That wasn't part of the assignment, but I thought it was for a while until I read everything over again and asked the professor. So then that illuminated another way I wanted to try and haven't accomplished yet because I'm still not sure of the details. It's at the bottom of the Mininet walkthrough http://mininet.org/walkthrough/ under Using a Remote Controller It says to create a software network you can get in from outside of the virtual machine you can start Mininet with something like: sudo m

Arlon's CSUMB Intro to Computer Networks CST-311 Module 1 Learning Journal #1/#33 for the week Wed 09/01-Tues 09/07, year 2021 Well I have been extremely super excited about this class, so it is really great to finally be jumping in! In the beginning I was little muddled at first over some past drama, a little caught up in some past projects, and a little overwhelmed with all the new terminology - but definitely still super excited to get to the topic and I was super happy to see all the practice problems and super awesome lab experiments presented - a little stumped by a few - but not too stumped, they're great! Just like in database class, orientation had me learning things I didn't know, right off the bat! Even though I had been doing experimentation with the setup, what I learned in orientation still took me in a direction I hadn't gone before - x-forwarding for starters is really neato, MiniNet itself and software networking is an amazing concept I