Portrait of Moaaz Essam Moaaz Essam Linux · Security

Linux systems, hardened and documented.

I'm Moaaz Essam — a cybersecurity student at the Arab Open University working in parallel as a Linux system administrator. I harden hosts, lock down access, and keep services running.


LinuxAdmin
CyberFocus
bashShell
AOUStudy

  • Host hardening — patch management, hardened SSH, least-privilege permissions and firewall rules that are written down.
  • Linux operations — systemd services, users and groups, cron, disk quotas and backups I have actually restored.
  • Detection & response — log analysis, vulnerability assessment, and reading alerts closely enough to find the real signal.
  • Networking — TCP/IP, DNS, VLANs and Wireshark, tracing a fault to the packet instead of guessing.

Available for freelance and remote security & sysadmin work.

Systems
Ubuntu, Debian, systemd, Bash, SSH, cron, process management, backup and recovery
Security
Hardening, vulnerability assessment, log analysis, incident response, access control, patch management
Network
TCP/IP, DNS, UFW and iptables, VLANs, Wireshark
Servers
Nginx, Apache, Docker, LAMP, TLS and certificates, Windows Server, Active Directory
Tooling
Nmap, Burp Suite, Metasploit, Wireshark, Bash scripting, Git