Linux SysAdmin | Network & Security Automation Engineer
I build practical CLI tools and automation scripts to simplify network operations, security enforcement, and infrastructure maintenance.

• Design and maintain Linux-based systems
• Automate repetitive sysadmin and network tasks
• Work with firewalls, traffic control, and network monitoring
• Manage SSL/TLS lifecycle using ACME (Let's Encrypt)
• Build small, focused tools that solve real operational problems

• Operating Systems: Linux (Debian, Ubuntu)
• Scripting & Automation: Bash, Python
• Networking: iproute2, nftables / iptables, tcpdump, OVS
• Security: Firewall rules, traffic filtering, abuse mitigation
• SSL / PKI: ACME, Let's Encrypt, DNS-based validation
• DNS & CDN: Cloudflare
• Monitoring & Diagnostics: nload, ifstat, sysstat, CLI-based tooling

• Network-Tool
  A terminal-based toolkit for network monitoring, firewall inspection, and system-level diagnostics on Linux.

• ACME_SSL_Manager
  Automates issuing, renewing, and managing SSL certificates using ACME with DNS provider integration (e.g. Cloudflare).

• torrent-block
  Firewall-level blocking logic for torrent-related traffic patterns, designed for controlled and lawful environments.

• wp-login-url-manager
  Logic and utilities related to managing or discovering custom WordPress login URLs.

I prefer:

• Simple, auditable scripts over over-engineered systems
• CLI tools that can be deployed quickly on real servers
• Clear documentation and predictable behavior

Most of my repositories are built from real-world operational needs.

• Email: 090ebier@gmail.com
• GitHub: https://github.com/090ebier

⭐ If you find my work useful, feel free to star a repository or reach out.