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$
USD
I will perform professional linux server hardening and security fortification
Software Engineer, Automation Expert
Professional Software Engineer focused on high-performance infrastructure. I specialize in:
Self-Hosted Automation: Expert in n8n and Python to eliminate expensive subscriptions while ensuring 100% ...
About this Gig
Protect Your Infrastructure with Professional Linux Hardening
Default server settings are easy targets for bots and ransomware. As an IT Engineer, I apply defensive security to transform your server into a resilient, production-ready environment.
What I offer:
1. SSH Fortification:
Disabling password access (the #1 attack vector).
Implementing Ed25519 or RSA 4096-bit cryptographic keys.
Deactivating root login & configuring limited-privilege users.
2. Active Defenses:
Proactive Firewall: Custom UFW/IPTables rules (Default Deny).
Brute Force Protection: Fail2Ban setup to auto-ban malicious IPs.
3. Audit & Optimization:
Security Audit: Exhaustive OS scanning with Lynis for vulnerabilities.
Service Cleanup: Removing obsolete services and backdoors.
Auto-Patching: Configuring automatic security updates.
DoS Mitigation: Network tuning to prevent basic attacks.
Why me?
Peace of Mind: Reduce your attack surface drastically.
Continuity: Ensure your server stays online.
Expertise: Enterprise-level setup and documentation.
Protect your infrastructure today with your data.
Operating system:
Linux
•
Other
Other Support & IT Services I Offer
FAQ
Which Linux distributions do you support?
I specialize in Ubuntu, Debian, CentOS, and AlmaLinux. If you are using a different distribution (like Arch or Fedora), please contact me before placing an order to confirm compatibility.
Do I need to provide root access?
Yes. To perform deep hardening, audit the kernel, and configure system firewalls, temporary root or sudo access is required. You can provide a password or add my public SSH key; I recommend changing your credentials once the delivery is complete.
Will this service break my website or apps?
No. Before applying any rules, I analyze your active services (Web servers, Databases, APIs). I configure the firewall and security policies to keep your necessary ports open while blocking only unauthorized or malicious traffic.
What is the technical audit with Lynis?
Lynis is a professional security auditing tool. I use it to scan your entire OS for vulnerabilities, hidden configuration errors, and compliance issues. In the Premium package, I provide the results and fix the identified risks.
Can you work on a server that is already live?
Yes, I can perform hardening on production servers. I work carefully to ensure zero downtime. However, it is always recommended to have a recent backup of your data before performing any system-level changes.
Is this a one-time service or monthly maintenance?
The Gig price is for a one-time professional setup. I will leave your server optimized and with automatic security updates enabled, so it stays protected without needing daily manual intervention.
