Quad9 is a free and public security-foused DNS resolver located at 9.9.9.9 that blocks known malicious domains.
Quad9
0001-01-01
Recent Posts
Linux Persistence: atd
2025-04-01 DFIR CTF linux persistence at atd
Linux Persistence: SSH
2025-03-29 DFIR CTF SSH hardening hunting persistence linux persistence hunting hardening SSH PAM