# Reconnaissance

- [C99 Recon](/attacks/reconnaissance/c99-recon.md)
- [DNS](/attacks/reconnaissance/dns.md)
- [SubDomain lookup](/attacks/reconnaissance/dns/subdomain-lookup.md)
- [Tools/Syntax](/attacks/reconnaissance/tools-syntax.md): todo
- [O365 RealmInfo](/attacks/reconnaissance/o365-realminfo.md)