Vi editor in Linux | modify existing file in linux | vim vi commands | modifying script or text

What is Pharming | Pharming malware | pharming vs phishing

What is firewall | Firewall types, router acl vs fw | stateful vs stateless firewalls

Phishing techniques | whaling | what is spear phishising spamming, vishing

Malware entry points in target system | ways malware can injected into target

What is Malware | types of malware | what is adware, spyware, rootkits, botnets

Social Engineering attack |attack techniques |attack principle | shoulder surfing | dumpster diving

Network Footprinting | what is network footprinting | traceroute

Component of Malware | cryper | downloader | payload | exploit

InfoSec teams role red team vs blue team | orange team | what is red team | what is blue team

MTU size | what is MTU | what is MSS | maximum transmission unit | data transmission

Ping utility footprinting | footprinting using ping utility | how ping works |

Whois footprinting | whois query | how whois query works |