Exploitation
Links
DNS
https://nip.io/ Wildcard DNS
Request Interception
Tools: BurpSuite Links: Requestbin: Interecepts HTTP Requests (useful for blind SSRF)
HTTPD
Busybox HTTPD httpd [-ifv[v]] [-c CONFFILE] [-p [IP:]PORT] [-u USER[:GRP]] [-r REALM] [-h HOME] ...
Conversion
CyberChef: Encode/Decode string formats with recipes
Payloads
PayloadsAllTheThings: Misc payloads and bypasses