Linux System Administrator and Server Hardening Specialist
Costa Rica
Espanhol
Algumas informações são exibidas no idioma inglês.
Sobre mim
Linux System Administrator specialized in initial server hardening, SSH security protocols, UFW firewall configuration, and file system permission auditing (Ubuntu/Debian).
I help businesses and web admins secure their Linux environments:
• Linux Server Hardening & Security Setup
• OpenSSH Hardening (Key-based auth, custom ports, root restriction)
• UFW Firewall Configuration & Port Isolation
• File Permission Auditing & Remediation
All workflows follow security standards with documented labs (GitHub: joelsolano-dev).... Saiba mais