I will fix linux server, nginx, 502 bad gateway and SSL errors

Spain

I speak Spanish, English, Italian

Linux SysAdmin Backend Infrastructure Engineer

Hi, I'm Daniel, a Systems Administrator & Backend Engineer specializing in Linux servers, virtualization, and web infrastructure. I diagnose and fix critical server issues, optimize performance, and ...
About this Gig

Is your Linux server down or throwing 502/504 errors? I provide fast, reliable troubleshooting to get your web services back online quickly and securely.


What I can fix and configure for you:

HTTP 500, 502 Bad Gateway, 503, and 504 Gateway Timeout errors

Nginx & Apache web server configuration and reverse proxy setups

SSL / TLS certificates (Let's Encrypt, Certbot, Cloudflare, Auto-renewals)

MySQL / MariaDB crashes, high CPU/RAM usage, and connection bottlenecks

PHP-FPM socket configuration and file/folder permission errors

Linux VPS management (Debian, Ubuntu, CentOS, AlmaLinux)

Docker container issues and Proxmox LXC setup


Why choose this service?

Root-cause analysis via system logs without risking existing data

Clean, permanent configuration fixes (not temporary patches)

Fast diagnosis and clear technical communication


Please send a message before ordering if you have a complex setup or custom requirements!

Server:

Apache HTTP

•

Virtual private server

•

Database server

Operating system:

Linux

•

Unix