How the Internet Works
Report
Will BradleyFollow
Apr. 5, 2014•0 likes•2,447 views
0 likes
Be the first to like this
Show More
views
Total views
0
On Slideshare
0
From embeds
0
Number of embeds
0
Check these out next
How the Internet Works
Apr. 5, 2014•0 likes•2,447 views
0 likes
Be the first to like this
Show More
views
Total views
0
On Slideshare
0
From embeds
0
Number of embeds
0
Download to read offline
Report
Technology
Download notes and capture files here: http://willbradley.name/how-the-internet-works/
Will BradleyFollow
How the Internet Works
- How the Internet Works From “www.google.com” onwards http://willbradley.name/how-the-internet-works @willbradley CactusCon 2014
- Connections and Protocols “7 Layer OSI Model” Mostly theoretical. Note: ARP/MAC, IP, TCP, DNS, H TTP.
- Packets (in Wireshark)
- DNS Lookups Recursion! Root: . TLD: .org. NS: heatsynclabs.org. IP: 72.44.240.228
- Subnets and Masks Binary! Addresses “in” this network start with “011”: 95: 0101 1111 96: 0110 0000 97: 0110 0001 98: 0110 0010 … 100: 0110 0100 … 124: 0111 1100 125: 0111 1101 126: 0111 1110 127: 0111 1111 128: 1000 0000
- NAT (actually PAT)
- Real Routing (BGP!)
- Port Forwarding / Firewalls
- Ethernet (100 BASE T)
- Subnetting Issues
- DNS Cache Poisoning
- Switching and Broadcast Storms
- ARP Spoofing / MITM