Answer:
10.0.0.0/24: Includes ranges 10.0.0.1–10.0.0.254
10.0.0.0/16: Includes ranges 10.0.0.1–10.0.255.254
10.0.0.0/8: Includes ranges 10.0.0.1–10.255.255.254
Problem: I work with lot of hosting accounts and websites. I regularly need to access their servers via SSH. There was one client with inmotion hosting account. They provided me with thier SSH detaisl but I had the following error
Network error: Connection Timeout, Can’t connect to host.
Knowing the credentials were correct, the possibility was that we had to whitelist IP ADDR.
Out ISP does not provide static IP ADDRESSE so I had to rely on a range of IPs something like 10.10.0.0–10.10.225.225
Most with degrees in CS may already know this but I had no Idea how to add the IP range in Slash Notation.
Explaination
Each place in IP is 8 bits. The slash / tell us how many bits are part of the network
Lets say we have an IP 106.196.88.35 and we want a range 106.196.88.[0–254]
We would write 106.196.88.0/24
This means 24 bits are fixed 106.196.88.[0–254]