11:07 you can't do that by default because most home routers don't have a local DNS, they just send to you the ISP's DNS resolver (or the one you configure in the router). The reason you can do that is because yo have bonjour (on apple) or havai (on linux and maybe windows), which don't even require a local dns server and are the implementartion of mDNS which you mentioned on the last past of the video. So this only works in networks where the DCHP server and the DNS server co-exist and the DHCP server is aware of this. Good video by the way
I just love the way you communicate, and how you dump your whole thought process! Can you explain how public IPs work? I mean how a dedicated public address is attached to a machine behind router(s) or NAT(s)?
Just to make it complete: DHCP server adds RR dynamically when lease is assigned. Also, when the lease expires (i.e. 4h in this case), DHCP server removes the same RR.
Niceeeeee, top-notch content Hussein... Why did the client send a broadcast again for the DHCP Request... 🤔🤔 Since it already knows the DHCP's IP address...? I'm curious 🧐
Hi 👋 I have a confusion that should I enable or disable 'DNS Relay' option in my router ? What exactly it is? What is the use .... If u make a video regarding this will be helpful ❤️
What happens if 2 devices have the same host name ? Will the connection to the router not happen ? If the connection to the router happens who will the packets be sent to ?
I’d say it’d follow the same DNS behaviour when two A records pointing to different IP Addresses. It’ll round robin. In work environment, Server admins will be the one controlling hostnames and A records.
It boils down to de-duplication policies defined on DHCP server. A simple policy could be: husseinmac2.home.local, husseinmac2-a.home.local, husseinmac2-b.home.local, husseinmac2-c.home.local
this video ruclips.net/video/4yuT5KR7TRc/видео.html will explain how a rogue dhcp attack can be prevented with a combination of port security and dhcp snooping. i really love and i respect that guy very much, he is a double CCIE. mad stuff!
Get my fundamentals of network engineering course network.husseinnasser.com
Your talks are top notch
11:07 you can't do that by default because most home routers don't have a local DNS, they just send to you the ISP's DNS resolver (or the one you configure in the router). The reason you can do that is because yo have bonjour (on apple) or havai (on linux and maybe windows), which don't even require a local dns server and are the implementartion of mDNS which you mentioned on the last past of the video. So this only works in networks where the DCHP server and the DNS server co-exist and the DHCP server is aware of this. Good video by the way
Love the use of Wireshark in this video,
It really helps understanding the subject.
Hope you continue with it.
I just love the way you communicate, and how you dump your whole thought process! Can you explain how public IPs work? I mean how a dedicated public address is attached to a machine behind router(s) or NAT(s)?
Really appreciate your content and the way you explain, and break down, concepts. Thank you so much
SUUUPER nice video, great walkthrough and explanation, LOVED it!
Just to make it complete: DHCP server adds RR dynamically when lease is assigned. Also, when the lease expires (i.e. 4h in this case), DHCP server removes the same RR.
Really interesting! Thank you Hussein!
Niceeeeee, top-notch content Hussein...
Why did the client send a broadcast again for the DHCP Request... 🤔🤔 Since it already knows the DHCP's IP address...? I'm curious 🧐
Hi 👋 I have a confusion that should I enable or disable 'DNS Relay' option in my router ?
What exactly it is? What is the use .... If u make a video regarding this will be helpful ❤️
How could I become a member Hussein?? I mean PayPal not working from Ethiopia
@Hussein Waiting for your explanation on the New revised architecture of twitter shared by Elon
What happens if 2 devices have the same host name ? Will the connection to the router not happen ?
If the connection to the router happens who will the packets be sent to ?
I’d say it’d follow the same DNS behaviour when two A records pointing to different IP Addresses. It’ll round robin. In work environment, Server admins will be the one controlling hostnames and A records.
It boils down to de-duplication policies defined on DHCP server. A simple policy could be: husseinmac2.home.local, husseinmac2-a.home.local, husseinmac2-b.home.local, husseinmac2-c.home.local
💚💯💯👌👌🙏
this video ruclips.net/video/4yuT5KR7TRc/видео.html will explain how a rogue dhcp attack can be prevented with a combination of port security and dhcp snooping. i really love and i respect that guy very much, he is a double CCIE. mad stuff!