Messer, LOVING the video series, thank you. Had to pause to have a moment of fun.... 9:28, you made a CRITICAL mistake in your presentation talking about QoS. From REAL WORLD experience, in any enterprise setting the admin would definitely be prioritizing World of Warcraft at the highest level possible! Hahahaha xD Back to work!!
Gloss. Funny story. While I was working on my degree, we had students that played wow regularly in class on their laptops. Our instructors had everything open so we could do that. They were trying to treat the students as professionals. We were sitting at our desktops going over some hands on labs. All of the sudden we started having multiple windows spam all over the screen. The malware had spread throughout the whole P.C tech wing. I worked with the instructors and we traced it back to a student who downloaded a wow quest helper. The quest helper had a dangerous payload with it. Needless to say all ports for any sort of gaming were shutdown for ever after that. Every time I hear about a professional like Mr Messer bring up wow, it always makes me laugh.
Thanks for the video series! I went through the A+ text book (different author) and have been having trouble with the objectives and what info each one is specifically looking for. This helps so much, and saves me so much time. Thanks again.
Hi prof messer, could you please explain the ‘need’ for port forwarding ? As I thought NAT was a 2 way street in terms of, your device sends a request through or disguised as the local router, and then receives back a response, from the destination I.p. So then what is the need to set up an individual request via a port for incoming traffic to a specific I.p. ( as I thought that was the purpose of NAT) many thanks for your vids and course notes etc.
Port forwarding is a way to allow inbound traffic. Because our firewalls are stateful, inbound traffic is only allowed if there was a previous outbound communication to that IP address and port number. All unsolicited traffic attempts are blocked by the firewall. Port forwarding is a type of NAT that allows specific types of unsolicited inbound traffic and redirects that traffic to an internal device (usually a server or service).
Hi James. Thank you so much for the information. Your videos are extremely helpful and I have really enjoyed your teaching method. Side note: I have noticed you mention World of Warcraft a couple of times. What server do you play on (hopefully still playing) and are you Horde or Alliance?
Every modem I've ever used personally had terrible functionality in regards to letting it "find the best channel automatically." I made a big move recently and spent 6 months in an apartment. Every time I checked what channel my modem was automatically choosing to broadcast on, I would use a wifi channel analyzer app on my phone to check the channel map around me. It seemed to always pick a highly congested channel, Thankfully I'm in a house now and it really doesn't matter because there aren't 20 modems within broadcast range anymore.
Another great video! Can someone clear up a question for me? Is the router's external NAT'd IP address that is mentioned in this video the same as the router's WAN interface IP address that is assigned automatically by my ISP's DHCP server that was mentioned in the last video?
Hey Prof, thanks for all these videos. IT has been something I've always wanted to get into, and I'm hoping that getting the certification can lead to new ways into the field at my new job, eventually. Question for you (or anyone else): Since the test is reworked every three years with updated information, should I be on the lookout for a new playlist or anything? Or should I just try to learn now until more information comes up?
@@ashweeee9160 MAC filtering isn't very useful as a security technology, but it can be used to help manage internal devices and keep them from connecting to the wrong networks. It's not a commonly used technology because of the management required to add and maintain the address list, but it does fit some specific corner cases.
Professor Messer thank you for your replay. I am just curious. Because CompTIA is pushing MAC filtering as a security feature pretty hard. But few things that I remember from CCNA 15 years ago, this was actually an issue. So I was interested in what has changed. A few days ago, I was trying to find a solution, but with no luck. It seems to me in general people are not aware, or they don't know how easy it is to spoof MAC address. The only sign I can see is, when Windows is complaining about two hosts are using the same IP. Now I am trying to get back to IT after so many years. Hopefully, CompTIA A+ is a good choice for the beginning and next year Cisco when they replace the current program. Thank you
@@Dextermorga CompTIA includes MAC filtering on the exam specifically to show that it is not a security feature, but instead is a management feature. In every course I've created (including this one), I clearly describe MAC filtering as security through obscurity, which obviously is not security at all.
MAC filtering and SSID broadcast suppression are two different configuration settings and can be independently set. Neither setting is dependent on the other.
@@professormesser cause i was doing your practice exam. question b1 "make the following configuration to this network" i answer enable broadcast SSID but your anwser was Disable. I was wondering does addresses on the MAC filtering can still see the SSID even though it was Disable ?
Messer, LOVING the video series, thank you. Had to pause to have a moment of fun.... 9:28, you made a CRITICAL mistake in your presentation talking about QoS. From REAL WORLD experience, in any enterprise setting the admin would definitely be prioritizing World of Warcraft at the highest level possible! Hahahaha xD Back to work!!
Gloss. Funny story. While I was working on my degree, we had students that played wow regularly in class on their laptops. Our instructors had everything open so we could do that. They were trying to treat the students as professionals. We were sitting at our desktops going over some hands on labs. All of the sudden we started having multiple windows spam all over the screen. The malware had spread throughout the whole P.C tech wing. I worked with the instructors and we traced it back to a student who downloaded a wow quest helper. The quest helper had a dangerous payload with it. Needless to say all ports for any sort of gaming were shutdown for ever after that. Every time I hear about a professional like Mr Messer bring up wow, it always makes me laugh.
I got a good laugh out of the " World of warcraft is low" part.
"-Or vice-versa"
Amazing content. Thank you very much. I'm trying to watch the whole playlist to learn step by step
Thank you for all your hard work and time making these videos!!
Thanks for the video series! I went through the A+ text book (different author) and have been having trouble with the objectives and what info each one is specifically looking for. This helps so much, and saves me so much time. Thanks again.
I loved your clear and concise explanations of how Port Forwarding works! Has always stumped me in the past, but now it's so simple to visualise.
The wink after "Security through obscurity" had me!! Thanks for your outstanding explanations professor :)
Wow. Amazing explanation. You just clarified tons of doubts I’ve had, pretty much all in the same video.
Hi prof messer, could you please explain the ‘need’ for port forwarding ? As I thought NAT was a 2 way street in terms of, your device sends a request through or disguised as the local router, and then receives back a response, from the destination I.p. So then what is the need to set up an individual request via a port for incoming traffic to a specific I.p. ( as I thought that was the purpose of NAT) many thanks for your vids and course notes etc.
Port forwarding is a way to allow inbound traffic. Because our firewalls are stateful, inbound traffic is only allowed if there was a previous outbound communication to that IP address and port number. All unsolicited traffic attempts are blocked by the firewall.
Port forwarding is a type of NAT that allows specific types of unsolicited inbound traffic and redirects that traffic to an internal device (usually a server or service).
Professor Messer thanks for the explanation, that clears things up 📱👍
Cleared it up for me too. Thanks for asking it.
Thanks prof. Messer
Hi James. Thank you so much for the information. Your videos are extremely helpful and I have really enjoyed your teaching method. Side note: I have noticed you mention World of Warcraft a couple of times. What server do you play on (hopefully still playing) and are you Horde or Alliance?
Every modem I've ever used personally had terrible functionality in regards to letting it "find the best channel automatically." I made a big move recently and spent 6 months in an apartment. Every time I checked what channel my modem was automatically choosing to broadcast on, I would use a wifi channel analyzer app on my phone to check the channel map around me. It seemed to always pick a highly congested channel, Thankfully I'm in a house now and it really doesn't matter because there aren't 20 modems within broadcast range anymore.
Never considered that use-case. That's great thinking. You're able to move things to a less-congested channel after that?
This is great video. I'm just not sure where the configurations are coming from. How do you know what IP address to put and what port range to put in?
I assume you get it from your router
I was wondering, why use NAT when we can use ipv6 addressing?
Love the WoW reference. You know we all play it!
Another great video! Can someone clear up a question for me? Is the router's external NAT'd IP address that is mentioned in this video the same as the router's WAN interface IP address that is assigned automatically by my ISP's DHCP server that was mentioned in the last video?
Was you able to figure out if this is the case? thanks
@Adam Oakley @Welshy Yes your WAN IP is the same as your NAT IP
Hey Prof, thanks for all these videos. IT has been something I've always wanted to get into, and I'm hoping that getting the certification can lead to new ways into the field at my new job, eventually.
Question for you (or anyone else):
Since the test is reworked every three years with updated information, should I be on the lookout for a new playlist or anything? Or should I just try to learn now until more information comes up?
Still going strong in this journey!!!
Can we change the priority for World of Warcraft to medium :)
Proff, How can get your Handout text books ?
What would you recommend using instead of MAC filtering?
MAC filtering may be the right solution for your problem, or it may not be. What are you trying to accomplish?
@@professormesser When would MAC filtering be the right solution? Thanks for the videos and answering comments!
@@ashweeee9160 MAC filtering isn't very useful as a security technology, but it can be used to help manage internal devices and keep them from connecting to the wrong networks. It's not a commonly used technology because of the management required to add and maintain the address list, but it does fit some specific corner cases.
Professor Messer thank you for your replay. I am just curious. Because CompTIA is pushing MAC filtering as a security feature pretty hard. But few things that I remember from CCNA 15 years ago, this was actually an issue. So I was interested in what has changed. A few days ago, I was trying to find a solution, but with no luck. It seems to me in general people are not aware, or they don't know how easy it is to spoof MAC address. The only sign I can see is, when Windows is complaining about two hosts are using the same IP. Now I am trying to get back to IT after so many years. Hopefully, CompTIA A+ is a good choice for the beginning and next year Cisco when they replace the current program. Thank you
@@Dextermorga CompTIA includes MAC filtering on the exam specifically to show that it is not a security feature, but instead is a management feature. In every course I've created (including this one), I clearly describe MAC filtering as security through obscurity, which obviously is not security at all.
Honestly i'd put WoW as a high priority... but that's just me
if you enable MAC filtering you need to disable broadcast SSID?
MAC filtering and SSID broadcast suppression are two different configuration settings and can be independently set. Neither setting is dependent on the other.
@@professormesser cause i was doing your practice exam. question b1 "make the following configuration to this network" i answer enable broadcast SSID but your anwser was Disable. I was wondering does addresses on the MAC filtering can still see the SSID even though it was Disable ?
hi guys i'm new to the IT field and i'm kind of lost here is this normal.and what do you guys recommend as a beginner ?
I'll be taking the 1001 soon. Any advice for the test?
3 years later, did you pass?
@@Dookiemuncheyep! I got like an 85% or thereabouts.