- I’ll tell you a DNS joke but be advised, it could take up to 24 hours for everyone to get it.
- I think there is a duck in my router. It always goes NAT, NAT, NAT.
- So I want to dress up as a UDP packet for Halloween, but I don’t know if anyone will get it.
- I could tell you an ICMP joke but it would probably be repetitive.
- I wanted to write an IPv4 joke, but the good ones were all already exhausted.
- IPv4 address space walks into a bar and yells “One strong CIDR please, I’m exhausted!”
- Knock knock.
SYN flood who?
- Q. What is a Unix or Linux sysadmin’s favourite hangout place?
A. Foo Bar
- A RAID member disk walks into a bar. Bartender asks what’s wrong?
“Yeah, you look a bit off.”
- Linux geek started working at McDonalds. A customer asked him for a Big Mac and he gave him a bit of paper with FF:FF:FF:FF:FF:FF written on it.
- Q. What kind of doctor fixes broken websites?
A. A URLologist.
- When there is a change in DNS, it needs to be propagated to all other servers. This process takes up to 24 hours in completion.
- IP addresses are scarce. NAT (Network Address Translation) protocol is the way in which all devices connected to the router have private IP address while the router is connected to the real networked world. Ducks are supposed to be sound like nat-nat.
- UDP (User Datagram Protocol) is a networking protocol which doesn´t guarantee the delivery of data packets. Normally, we use TCP protocol to communicate with the internet. UDP is mostly used in real-time systems.
- Open a terminal and use the command ¨ping www.google.com¨. You´ll understand the joke.
- There are limited number of IP addresses available in IPv4. With the rapid expansion of the internet, IP addresses have been exhausted. Read this for more info.
- CIDR was introduced to mitigate the IPv4 exhaustion.
- Read this to know about how SYN flood is used for DDoS attacks.
- Read this to know about Foo bar.
- In RAID, an additional parity bit is added to detect error. If this parity bit is off (i.e. 0), it indicates an error.
- Every networking devices, your smart phone, computer etc, has a MAC address that is often represented in hexadecimal format and looks like 01:23:45:67:89:ab. These MAC address are used to determine which device would receive the data packet.
MAC address FF:FF:FF:FF:FF:FF is used for broadcasting the data packet to all the devices. This FF:FF:FF:FF:FF:FF is also called big MAC in networking world.
- Self explanatory
Sources: 1-7,11 NixCraft, 8-unknow, 9 @SwiftOnSecurity, 10 @GoogleforWork