Information I got from “Assessment test”:-
To compute CIDR from subnet mask:-
we convert the number to binary and count the ones
To compute CIDR from IP address given the number of hosts:-
we do it by trying each CIDR until we get close to the given number of hosts
To do that First:- subtract the given number of hosts from 32 which is the total number of hosts.
Second:- calculate 2 power result of first step
Third :-subtract 2 from the result of second step
we do that because the first ip address is all 0sand the last ip address is all 1s
NIST’s cybersecurity framework Function:-
It has 5 functions
1.Identify 2.Protect 3.Detect 4.Response 5.Recovery
Information I got from “Chapter 1: Ethical Hacking”-> Not part of CEH exam:-
Ethical Hacking Methodology(=steps):-
- Reconnaissance and Footprinting:-
Reconnaissance: is gathering information about the target.
Footprinting: is getting an idea of the target, the size and appearance.
2. Scanning and Enumeration:-
which means find the accessible systems in the target’s network and get additional information about the targets’ systems such as opening ports, operating systems… etc.
3. Gaining Access:-
Exploit a vulnerability to gain access to a system.
Have permanent access to the compromised system without starting with the first stage(Reconnaissance and Footprinting).
5. Covering Tracks:-
To delete or hide evidences of compromising(hacking, gaining access to) the system including systems’ logs.
I’m sorry I will complete the rest of my notes later…
created 8 September 2020
edited 14 September 2020