Ch. 5 – Securing Network Devices

Well, I didn’t get a second chapter done this morning but I had intentions to. I’m kind of laughing about this but we have had several issues today with enforcing non existent procedures and being unsure about next steps in projects and it sometimes seems as if there are some people in our department that are more interested in causing a fuss than actually getting work done and doing any kind of planning. This is not a surprise at all. Anyway, I’m trying to push for managed windows updates and have found clients on the network I can replace. I posted the info in teams and need to wait to hear back about it. Also today was turkey shoot day at work where you could win a free turkey by being good with like a rubber band gun or something. Not really sure. I got the calendar notice but didn’t exactly pay attention to it for some reason then got slightly sad when I missed it. Anyway, I’m also getting a super sick goth dresser delivered today that was on sale for like 55% off and appears to be a super nice bit of furniture. No idea how its being delivered but I’m hoping there isn’t much assembly time. Could go either way but regardless I’ve charged my cordless drill that ive been using all year on home ren projects and never once charged the battery. Lets get into these questions.

Not sure, this is cisco tech that I’m just learning about.

This isn’t really making a lot of sense but something as easy as a password does not require much CPU up time. However there are many many types of hashing and encryption. Im going to go with C because rainbow tables exist for common hashes lol

right…. not sure about that

I would assume B to be true here as it makes more sense but even in the process of hashing it may become clear what the algorithm is. It’s possible A is also true.

Kind of enjoying this Sec+ review. Anyway, not sure what the VTY is but I think its a safe assumption that that its Virtual Terminal Yes?

I’m going to say B is my best guess because I’m not exactly sure. It seems weird to dig into a packet that deep on a firewall but to be honest that sort of packet inspection makes sense.

B for sure and I would assume D as well as those have to be regularly updated. A I would assume to be done by traditional firewalls. Maintain a database of IP’s its communicated with.

Turns out I have A and B backwards. B seems more complex but apparently its been in use for a while. Interesting. Anyway, new Pope Hate track. Seems like the Pope is down a bit in online popularity at the moment haha

Ch. 4 – Security Architectures

It’s been slow going but you know, im studying. Sort of. Work has been somewhat busy and there is nothing else terribly exciting going on. Other than getting a new Dell AIO machine that’s 27 inches and has an amazingly fast processor. I did something on it that took 15-20 mins on my i7 m15 laptop purchased last year and it took like 30 seconds on this computer. I dont know if it had to do with SSD or the processor but I’m assuming both. Regardless, so far its amazing and has no issues displaying on my 28 inch monitor as well giving me a 27 inch screen and a 28 in screen. I also have been poking around in pro tools and trying to sort of learn it but I dont really think its going to work for me or really be super helpful. I haven’t spend much money on it. I bought like a 25 dollar copy of PT 12 on ebay. They offer a sub service and like other a trial period service so I probably did not need to “buy it” but regardless I’m having fun with it. I have a another copy installed. I also paid off last years furniture and got more of that this year. The payment is a little more than last year but the quality is much higher. I didnt really need a dresser but its super goth and perfect for my living space. It’s also 54% off and they had an open box deal on the only matching nightstand that was 40 dollars off so, ok. lol Anyway, its a year of paying off debt and eating cheaply. Not sure how much of my personal training contract is left but cant wait to be done with that. Let’s get into some questions here!


D, its worded funny though

a and b


I’m not familiar with this one. C?



Not sure what hes asking here. I’m only familiar with hosts on the subnet being assigned an “A” status


Well, glad I got that security+ lol, Anyway, going to the gym for a short run and then maybe doing another blog posts. Kind of behind on these things but I’ll get them down.

Ch. 3 – Advanced IPv4 Access Control Lists

Well, haven’t been super active on this lately but like I said, as long as I can get this in the next calendar year, I am happy. So many things kind of going on. Mostly working on getting in shape and staying organized. That doesn’t sound like that much but it shockingly is. I could probably study more at work. That is a fact. Anyway, I got a reallly good deal on a 27 inch dell AIO machine that I bought yesterday and is arriving today. I should probably buy another SSD for it but still, the monitor is a 500 dollar monitor and its got a an 11th gen i7 in it. The video card is, not really even installed haha but I don’t really play video games so its fine. I mean, its absolutely for music production. Which I don’t make money off of and never will but it is fun. I mean, I really like making music and I’m good at it. I think I’m good at it and I have good taste in music. Obviously its not popular but I don’t really care. Stressful times though with that 18 months no interest situation.

Its kind of funny. You assume that images will scale no matter what size that you view the PDF at but that really isn’t true. these where at like 65% and they do actually look smaller. How that hurts peoples feelings, I have no clue and I’m not real stressed about it. Why anyone would be this stupid and purposelessly self centered, is beyond me. Like clicking the 100% button is not that hard. What’s it hurt? Probably some ones ego or ability to grasp reality.

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Anyway, I looked this up and while it doesn’t implicitly state its the same thing as a regular ACL, that does appear to be mostly the case. Given the options E and F seem to be solid candidates.

The first part of this is a real kicker. I dont know what those numbers mean. I guess I’ll have to figure that out if I see it on a test prep question.

Same story here.

These really could be random numbers labeled access list but this one sources ports in the answer yet there are no ports listed in the answers. the eq is a thing but this isn’t given proper treatment.

A and C both seem plausible but C seems like a better choice.

No clue but it says choose two and C and D match so its probably that.

Humm I don’t think it would be in A and B and we are still real big on 2 answers. I’m going to guess the last two. Shot in the dark.

Well, that’s all im going to go into for now. The reason? Who knows. Obviously its all random information where we just do what ever we feel like to feel cool and acquire a sense of belonging by saying the other guys are the bad guys with absolutely no goals or reasons in mind. Other than to maintain our absurd sense of self importance while doing things and not thinking through them at all.

Ch. 2 Basic IPv4 Access Control Lists

It’s been a productive day and I’m rounding it out with study. Wrote some riffs to chop up for a beat. Really enjoying the new guitar. This strat thing is aaaaammmazzzing. I also recorded using a mic across the room and it sounded great. Honestly had less than an hour in writing and recording but given that its going to be just bits in a 4-5 min composition that seems like a lot of time. Until you realize that playing guitar is actually a ton of fun and song writing is a really interesting thing when you start to uncover layers and ideas and so forth. I took a drug test this morning. Confident that I should pass and had PT training this morning as well. Went over good. I kind of realized that my fitness level is much higher than most of the people in the afternoon and it seems insane to do the things that I’m doing these days around people who are where I was like a year ago. Basically I’m doing cross fit that’s like a ton of upper body stuff and cardio with ropes, burpies and stairs. I can do sets fairly quick with a lot of reps without tiring. Anyway, I guess I like to stay busy so here we are, writing a blog post after basically writing an entire doom metal song and recording it on top of every thing else.

hahaha my last name is Barnes. That’s funny. Probably a coincidence. I have zero idea what a standard ACL could be configured to do. C&D?

good to know…./flushdns

what the hell does “valid number mean?

No clue what this is talking about.

I would assume D


This is kind of tuff. D is possible but I think its C but it could be A if pings first to last because its in that range.

Depends on the math we are using but I think its probably D

You know, i started with B but assumed that the .255 worked like a subnet ruling out all hosts addresses but its actually inversed.

I guess thats all for tonight. Here is one of my absolute favorite doom metal bands Gates of Slumber!

Honestly the records sound better but its still fun to see live shows. I saw them a few times but the first was in 2009 at this fest with a friend name phil lol great song title. … glad its fucking online.

Planet Caravan festival 2009

Ch. 1 – Introduction to TCP/IP Transport and Applications

Life is really odd sometimes and people are super weird. This isn’t new information but it seems like life is extra weird in my case for some reason. I’ve developed this thing where I can cut people off really fast because I’m fully aware that I don’t actually matter to most people. Like my life doesn’t mater to them at all. Does that make any sense? Like sometimes people just want to interact with me for shit’s and giggles and bring nothing to the table but stress and not help pay my bills. Like sorry I’m not really interested in that and am happy to be alone. I don’t know why that is but regardless I really got to get cranking on this cert and I have been kind of lazy about it so its whatever. I mean, im not expecting a damn thing from anyone I interact with but a hard time. Just to be honest. I mean, there are circumstantial factors about my life that make it almost impossible to get ahead or to date. It’s ridiculous and I’m just supposed to be ok to be put in this position. Lol, anyway, I did get a full time job offer from work, so that’s really good and helpful. Anyway, I’m apparently back into cert mode so whatever.

The word application gets confusing but guessing D and E because A and C do not make sense.

BDFC? Encryption is not a TCP technology to my understanding. No idea what flow control is but it seems like it would be router based.

lol nice, routing is router based and A is right.


I think that’s a frame but it could be a segment.v



Well, I did get some stuff done this weekend but I mostly stayed at home in bed. I approve of my level of productivity. lol So much going on…

New Book!…Vol. 2

I set out this morning to get some learning done and then realized I was out of chapters. So I started looking around for the second copy of the book in a free form and couldn’t find it! Amazon has a Kindle version but I’m really looking for a PDF version. I don’t mind actually paying for things and thankfully am currently employed so its not the end of the world to spend 30 dollars on a book. I found a free version but the questions looked terrible and the text was illegible so I skipped that.


I found a PDF version on the Cisco press site for 35 dollars. Found a thing where I could answer an additional set of questions and get more of a discount and I think I end up paying $29 dollars for it. Not a bad investment. Really should read the first one though. I mean, maybe not the parts about IPv6 but there is some for sure usable information in it. Maybe I can consult it at a later date. Who knows


Anyway, planning to start digging into this book this weekend. Attempting to attach the PDF here. Your results for downloading may vary. Or it may work every time with no issue. Who knows. Regardless if anyone wants me to remove the attachment, hit those comments or email the site admin! I pay for a google domain account and have never used it. I keep thinking I’m going to use it in a professional capacity for jobs and so forth but have yet to actually port over to it. I’m not really sure its worth it.

Ch 29 – Building a Wireless LAN

Well, it’s Wedensday night. I’m stressing about all sorts of things and trying to figure all sorts of things. I came to the conculsion that my company has over spend about 10k on monitor adapters and docks though. I mean, my credit cards have been taking a hit and im supposed to be paying them off but you know, 250 dollars on prime day, 300 dollars on two guitars that both sort of need work, a 200 dollar pair of boots (I may be getting a refund for these, i filed a paypal dispute) and next think you know your out a thousand bucks. Which is really not progress. I started running outside again now that its cooled off. It’s going ok. Also I think I can make money on the guitars, maybe. Like 400-500 bucks if I find the right buyer. But I’d rather not sell them haha…anyway. Here is a photo of me taken before tonight’s run with my new 500 dollar fitness watch that was on hella sale on amazon that I absolutely love. It keeps a super accurate heart rate and tracks everything. I mean, this this is great. It was more than half off on prime day too. Big fan of running for some reason. I find it stress reliving and gives me a goal or something to focus on. I was also shocked that my resting heart rate is in the high 50s. Healthy as a j bird are some shit.


I also quit smoking. Today is my second day of not smoking. Before quitting I ran 3 mils in 37 mins on the treadmill. I can probably go faster through the neighborhood but my lungs are kind of cleaning out again and there are hills and all that sort of thing. I was shocked to find that my squats went up in weight dramatically after running for a while. Allright, lets get into these questions. Well, I ended up going to bed but I did get started on this last night haha

I have no idea.

Well clearly there is a lot to learn here. Honestly, I would way rather dig into these through questions but damn this test is going to be as painstaking as the sec+ was and I sort of have less time to study for it 😦

Again, that ones something that I haven’t seen before as this stuff applies to Cisco tech. I will say, I’m happy I got a sec+ and net+ before undertaking this one.

I don’t know what a WLC is but normally its safe to use SSH depending on how the switch is configured. That basically runs a custom version of Linux if I understand this right … which gets into an whole other subset of issues. I mean, sort of. Code exists haha

Guess there is a GUI on those things. So its running Apache? haha k

lol no idea! I should really learn all of these terms…if they where a test prep question but its not so its kind of a 50/50 shot that its useful info.

I would assume a C. normally a WLAN wouldnt have an “interface” i mean, its weird terminology if it does. Bridge isnt right.

good to know.

b and d are correct. you put an ssid on an access point.

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oh so we are calling the access point a controller interface. K we can stop with the “its cannon” if its broken lol

D. I have no idea. B is a guess though

y tho

I’m not really sure what they mean by interface here. I guess I’ll skim the book to try and figure that out. Anyway, off to make some breakfast.

Ch 28 – Securing Wireless Networks

Well, Its a work day. I’m imaging computers and installing software, creating documentation, being “online”, trying to save the company buckets of money, being excited about my new fitness watch, planning for my run tonight and now blogging. I look like a football player when running. I have a long way to go to get to my goals but my resting heartrate is in the high 50s and being able to keep up 12 min miles for like 3-4 miles is no small feat for a guy that weighs 260. I’ve come along way but I’m trying to eventually get to that 60 min 10k situation. My arms are week as hell, this doesn’t really bother me but it would be nice to do pull ups and stuff. My squats are really good though. I can do sets with like 175 if my legs are fresh but then for the next week my legs hurt like down to the bone. It’s very different from the usual “my legs are sore and don’t feel like they move well” pain in recovery. Anyway, its nice staying busy. I also managed to buy a guitar off of facebook market that has literally 200 dollars worth of currently “I could put them on reverb and sell them today” pick ups in it. They are also wired really nicely in a configuration that I haven’t before in a strat. It’s a squire strat with (assuming) 59′ Seymour Duncan and Bill Lawrence pickup both wired to a coil split with a 3 way switch and volume and tone controls, for 100 dollars. The tone control doesn’t do any thing really. The clean sound is fucking awesome. Obviously the crunch is sick. I’ve never owned a strat but to be honest its possibly one of the nicest guitars I’ve ever owned. Man, strats really are unforgiving on that pick action though. You get that “spank” noise really quick. Not super keen on this but it does make you more careful when picking. Which, oddly clean picking is more important to me right now than learning to play the meedly meedly parts. So lets do some questions..You know since we aren’t doing any thing but apparently football is on.

What the hell is MIC? For sure A and C but it has to be D. I mean, its not secure if its not encrypted. but it does say “connection” and one would assume authentication is part of that. But we could be pulling the old wool eyes here. Anyway, google doesnt really know know what MIC is lol. I guess I’ll find out later

Well you want to use some form of encryption that has a hashing in it to ensure its tamper proof in this case. We dont really know what C is but EAP is usually packaged with PEAP and the hashing end of that escapes me but regardless this is overly simplifying the answer because someone will think you have to have what ever he says as the answer every time and I can tell you that is not the case. Unless your doing a standardized mass deployment in which case you would want to use the same encryption and hashing every time.

Turns out he tells you what MIC is and its Message Integrity Check. This may be a Cisco thing but who knows.

AES is fairly week, I think

Lol, WEP is the oldest.

Oauth is used for web authentication and is actually really interesting. this should be C. I mean, he did just say its used for authentication right. Anyway, this stuff is fun but confusing as fuck! Get a security+ for endless amounts of entertainment with it.

I’m totally unfamiliar with this. I’m not sure what any of these do but D lol

TKIP sounds like an antiquated term with like telco and wifi thrown in. Seems old for sure.

Just a guess. Honestly, its insane to keep some of this straight. I should probably be better at it but I have yet to have to know this stuff in prod. There is only one reason for knowing all of this stuff lol I’m not even sure what CCMP is. The thing that I figured out about this is though, is that the back end encryption methodology for most of these works fairly similar with flavor in terms of method of encryption/hashing. And they seem like the same thing but they are really not.

C is a compliance rating

I mean, I thought it was. I guess I was wrong… / maybe its just how it transfers data.

Hummm, For sure at least A but maybe C. B and D should use some form of LDAP

Cool. Now my machine is done building and I’m off to mail these replacement computers to a couple locations. They use one application on these boxes and for some reason the image keeps frying HDs on literally one model number older dell boxes that had win7 on them. It’s kind of a shame to send brand new hardware to type in 3 numbers and hit print on for a few years. Not really sure what’s going on with it but the person that built the image said he injected the drivers from dell for the machines into the image but we haven’t actually rolled images based on hardware specs so its kind of hard to really say that there are not 7070 drivers causing issues on the 7060 deployments. But when I say it fry’s the drive, I mean, it will not recognize it at all as being attached to the computer. Never seen any thing like it.

Ch 27 – Analyzing Cisco Wireless Architectures

Slightly frustrated this morning for a few reasons. Mostly frustrated by other peoples narcissistic tendencies to express themselves not by actually achieving anything but by expressing their displeasure with other peoples ability to function while acting completely irrational. It is the same things that annoy me every time. They are also generally unable to feel love weather its towards them selves or towards another person because they are just so wrapped up in being a shit person that thinks the answer to depression is more of what caused the depression rather than actually taking ownership of their own life and not needing to randomly interject horseshit ideas or just simply be a bad person as coping mechanism. Generally, those are the people that should be extracted from society imo. The good news is, I should have this book done this week. There is so much going on currently that I’m finding it hard to totally focus on passing this. However, I know I’ll take my time and get it eventually. Really working on some fitness goals though and that’s going really well. My resting heart rate is under 60 bmp and I can run 3 miles in like 36-37 mins if my legs are well rested. Anyway, lets get into some questions.

B, I mean, it interacts with something so that isn’t right. I’m going A

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So this is crazy, but I actually work on these switches and WAPs. I have access to the back end and every thing. Wildest thing. I also have server 2012r2 server, that was deployed, in the field, sitting on my desk. Right now! its sup on static and the gateway is misconfigured. Of course they mailed it to me and the generic local admin login isn’t working and it has one set of cached creds on it so I have to mail it to my whomst it may concern. The answer, i mean, terms are terms right and these guys have IPs, ports, you can see the traffic coming off the ports and the IP’s and the locational information but I mean its B

I really like to think its D

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Honestly, this is seriously slightly sarcastic but I’m guessing some kind of tunnel

Guessing A.

Lol I would do Cloud based. Have you used Meraki? It’s amazing and you can push config’s remotely. Why would you want any thing else.

I feel this is slightly logical but I have miss giving’s on it.

I dont know what a BSS is. No idea “at tall” anyway, I designed these shoes on the Nike website but I need tah stop spinnin money so I’ aint buyin um

I have no fucking klu3 at all. weird. Clue. Investigation. What if, say, before all this happened. I mean, a long ass time ago. I’m just saying

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“spectrum detected” anyway, I got this sitar thing going on Saturday.

Ch 26 – Fundamentals of Wireless Networks

Well, its Sunday. Thinking about doing blog posts and studying. Really excited about this one. Laughing at, this sounds absurd, but production companies that sell sound packs realizing im really good at making beats and sending email blasts when I buy a 30 dollar DI for a guitar to my PC to add, yet another “lil bit a flava” to the mix haha. I do it with the cheapest shit ever and it sounds amazing. Possibly because of things like Analog Obsession which I dont know who runs that but they are seriously good at development. What ever bro, maybe don’t be a gatekeeping asshole and stop me from getting mine. lol its like the “great rapper Ritz one said, Turn up on me Imma turn that shit down.” I could absolutely care less about flexing on this shit because my plays on SC look not that amazing but somehow I find that it gets around. Mysteriously. I dont make a fucking dime off it and I’m like ‘bruh im just playing MK JAM dog, did you get butt hurt cause you thought I didn’t know shit. Muh bad dog. I dont really give a damn” lol. Anyway, here are seme things “for reference” btw ytgtn lol /”…. c043

Anyway. I dont really have “hoop dreams.” I’m not “focused on my music” its just some shit I do when I need to relax. I work in IT and I love it. I’m really damn good at my job too. In fact, I often find people want to say I’m not keeping pace so then I just double “the pace” and then watch things really start to fall apart because they didn’t have a point to make other than some how my existence upset their ego. Regardless, if your looking for a person with tons of experience, strong leadership skills, a very much can do attitude who is resourceful and delvers a quality product with excellent customer service skills in an extremely timely fashion. I’m for sure your guy. If you where looking for a run of the mill employee to kind of annoy in your free time, I’ll probably make you cry and you’ll find your self constantly frustrated at your lack of understanding at the way the world works. So yeah, Questions? Oh yeah. I’m doing those. First I should eat and fold these clothes though. Well, its been about an hour and a half. Thought I would get back to work on this. Started chewing gum and going through questions and clipping them. It then, dawned on me, that my clothes, yeah still in the fucking dryer. Better go get those lol … other wise “they will wrinkle” …so i turned them back on and will go back over there in a few and see if they are warm and ready to be hung up neatly so I looke like an organized adult.

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Ok, buisness time, again. for real this time. First of all, we are back on some shit that like you actually have to deal with. Wireless networks! You will have to deal with these! you will not have to subnet a major metro area using IPv6 or figure out the number of host addresses for a football stadium if everyone has 1.7 devices and you need 3 subnets per deck lol

I think its B but damn, i should really really know this. Our wireless at work is slow as fuck. anyway.

ok, its dot 1 1 lol. how crazy is that. small world.

lol I mean, I would say C is a for sure good idea but I’m not sure if you have to do that.

I’m not sure this is true in all cases. Why would you do that? I have never heard of this. I have questions.

I have never heard of this before. A? No idea

K. I should really break all of those down but I’m going to wait for the VST to do that. Honestly, this cert is going to take like most of the year haha.

A, ok fine B

D? a repeater is like a range extender. I dont know. B or D is my guess.


So you have to have a device to connect to non wifi devices? what?

This was on the study prep for network+ but not actually on the test. They basically function as channels. and they are switchable. B-E seems right?

lol no clue. is this treble bleed?

That’s all for today. Had a great weekend!

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