Ubuntu Jobs

My Maven-managed Java 8/11 web app refuses to start in Tomcat 9. The code compiles cleanly, dependencies resolve, yet as soon as I hit catalina run the server aborts during start-up. I need a fresh pair of eyes to identify and fix whatever configuration detail is blocking the boot sequence. What you’ll be diving into: • Multi-module Maven project (Java 8 baseline, also builds under 11) • Standard war packaging, no Spring Boot embedded server • Tomcat 9 installed outside the project, launched via startup scripts on macOS and a staging Linux box Scope of work 1. Analyse startup logs and pinpoint the failing component or mis-configured resource (, , , or Maven plugin settings). 2. Apply the fix or guide me to adjust the configuration so the application deploys...

Tengo un servidor web Ubuntu alojado en Azure. Después de un ajuste en las reglas perdí todo acceso externo: no responden ni SSH (22) ni HTTP (80) ni HTTPS (443). Desde el portal de Azure todavía puedo entrar por consola de emergencia, así que la máquina está encendida; simplemente la capa de red o las reglas internas/externas están bloqueando el tráfico. Necesito que: • Analices y corrijas las Network Security Groups, reglas de firewall de la VM y cualquier configuración de iptables/ufw que impida estos puertos. • Restablezcas la autenticación SSH con claves existentes o, si fuera necesario, generes una nueva pareja y la dejes operativa. • Verifiques que el sitio web vuelve a ser accesible por HTTP...

I want to spend a focused, one-hour screen-share session building and deploying a tiny standalone Python agent from my Windows laptop to Google Cloud Functions. This is purely for learning, so I need you to drive the commands while explaining what each step does. During the call we will: • create a simple “Hello World” style Python script, • configure the gcloud SDK on Windows, • deploy the code to Cloud Functions, • trigger the function and confirm it runs, and • quickly review logs and basic troubleshooting tips. By the end of the hour I expect a working Cloud Function visible in my console and the confidence to redeploy it myself afterward. Familiarity with Python 3.x, Google Cloud Functions, and the Windows command line is essential; opt...

I run all of our transactional and marketing messages through a custom-built SMTP server, and I now need every single message we send to show a new “from” address. That address has not yet been added or verified on the server, so the first step will be setting it up properly, completing whatever SPF, DKIM, and verification steps are required, then updating the server configuration to make it the default sender. Once the address is live and trusted, I want the change enforced globally—no edge cases where an older identity slips through. After you update the SMTP settings, I’ll need a quick proof: send a few sample messages my way and show the headers so I can see the new address, correct DKIM signature, and a pass on SPF. If you have experience with Postfix, Exim, ...

I already have a trained machine-learning model sitting in a repo; now I need it running reliably on AWS. Your first task is to containerise the model (Docker) and spin it up on an AWS EC2 instance—the environment I’ve chosen for this project. Once it is live, expose a secure REST endpoint so my application team can POST data and receive predictions in real time. Low latency matters, so please size the instance with that in mind and configure autoscaling policies if you feel they will help. Model quality can drift, so the next priority is a solid monitoring stack. I want to see Accuracy, Latency and Error rate streaming into CloudWatch (or Grafana/Prometheus if you prefer) with clear dashboards and alarms that alert us when thresholds are breached. Feel free to add extra me...

I already have an IoT mobile app with its backend up and running; however, the user experience suffers from noticeable latency. My goal is to polish the codebase, trim anything that consumes resources unnecessarily, and move the entire stack from Google Firebase to a VPS that uses MQTT for real-time messaging. What I need you to tackle • Profile both the mobile client and the existing Node/JavaScript backend, pinpointing functions, background tasks, or logging that slow the app down, then refactor or remove them without breaking current functionality. • Reduce round-trip time for screen loads, device data sync, and control commands to well under a second on a normal 2G connection. • Stand up a secure VPS (Ubuntu preferred), install and configure an MQTT broker such as...

I’m running an Ubuntu VPS and want to turn it into a WireGuard VPN And RADIUS server that authenticates users against RADIUS. also need to migrate my existing Mikrotik User Managers all user to the RADIUS. What I need is a clean installation and configuration of WireGuard, full integration with the RADIUS so that user creation and revocation stay centralised, and a short set of commands or notes I can reuse when I add new clients in the future. Key points for this assignment • Ubuntu (latest LTS) is already provisioned with root access. • Mikrotik User Manager is live and reachable; I can supply the shared secret and connection details. • Only RADIUS-based logins should be accepted by WireGuard once you’re done. Deliverables 1. Working WireGuard server on ...

I need help configuring Ubuntu on my laptop for essential functions. Key Tasks: - Set up Thunderbird for email - Configure and manage storage Ideal Skills and Experience: - Proficiency in Ubuntu - Experience with Thunderbird - Strong system configuration skills