The ultimate guide to hiring a web developer in 2021
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Ubuntu is an open-source, Linux-based operating system that is secure, scalable, and compatible with most IT infrastructure. It has a stable environment and is known to be secure with majority of the services having built-in security features. With an Ubuntu Expert on your side, you can build an efficient system, save time, and deploy solutions faster. Moreover, they are up to date with the latest developments in Ubuntu, providing solutions that fit your needs.
Here's some projects that our expert Ubuntu Experts made real:
With professional Ubuntu Experts on board, no matter the size or scale of your project, you can be sure that we can make it happen. Our team covers almost all of issues related to the development of Ubuntu solutions and will bring future proof solutions to reduce complexity and downtime. So why wait? Get started now by posting your project on Freelancer.com to find the perfect Ubuntu Expert to tackle your unique business challenges!
Od 67,233 recenzí, klienti hodnotí našeho pracovníka Ubuntu Experts 4.9 z 5 hvězd.Ubuntu is an open-source, Linux-based operating system that is secure, scalable, and compatible with most IT infrastructure. It has a stable environment and is known to be secure with majority of the services having built-in security features. With an Ubuntu Expert on your side, you can build an efficient system, save time, and deploy solutions faster. Moreover, they are up to date with the latest developments in Ubuntu, providing solutions that fit your needs.
Here's some projects that our expert Ubuntu Experts made real:
With professional Ubuntu Experts on board, no matter the size or scale of your project, you can be sure that we can make it happen. Our team covers almost all of issues related to the development of Ubuntu solutions and will bring future proof solutions to reduce complexity and downtime. So why wait? Get started now by posting your project on Freelancer.com to find the perfect Ubuntu Expert to tackle your unique business challenges!
Od 67,233 recenzí, klienti hodnotí našeho pracovníka Ubuntu Experts 4.9 z 5 hvězd.I’m running an Ubuntu droplet on DigitalOcean and simply need to power-cycle it from the control panel. I have already combed through the droplet settings menu and the usual power options but still don’t see anything labeled “power-cycle,” “reboot,” or similar. What I need from you is a quick walkthrough (screenshots, short screencast, or a concise set of steps) that shows exactly where the power-cycle action sits in the current DigitalOcean interface and how to trigger it safely. If the option has been moved, renamed, or now lives under a different tab, please point that out so I can repeat the process on other droplets later. A short session over chat or a brief annotated guide is perfect—as long as I end with a successfully rebooted droplet th...
I’m ready to roll out Odoo Enterprise on-prem but I would like an expert beside me for the actual installation step, what I need right now is someone who knows the quirks of the Enterprise build and the usual Python/odoo user setup to make sure the first launch goes smoothly. We’ll work together over a live screen-share (or, if you prefer, a concise step-by-step document followed by a quick Q&A call). By the end of the session Odoo should be running as a service, reachable from a browser, and ready for me to dive into further configuration on my own. Key points you should be comfortable with: • Installing Odoo Enterprise • Docker That’s the scope—straightforward and focused on the installation itself. If you’ve done this a dozen times already,...
My Gazebo hospital-auction simulation runs three TurtleBot3s under ROS 2 Humble on Ubuntu 22.04. The nodes launch without crashing, NLP commands publish correctly, yet nothing appears or moves in RViz. RViz throws its usual “Global Options → Fixed Frame does not exist” warning, so the TF tree clearly is not reaching the visualiser; after that the robots ignore the velocity messages as well. I need someone experienced with ROS 2 Humble, TF2, Gazebo / Ignition, and TurtleBot3 launch stacks to jump in, inspect the running graph, and eliminate the missing-frame problem so the three bots become visible and responsive again. I have all launch files, URDFs, and NLP command source ready to share over a screen-share or repo. You’d trace the TF broadcasts, confirm the map/odo...
Our customer-facing login portal suddenly stopped working right after a previous freelancer performed AWS cost-optimization tasks (Reserved Instances, auto-scaling tweaks, and some security-group changes). Users enter their credentials, hit “Sign In,” and are immediately bounced back to the login screen with no specific error—so sessions clearly aren’t being established or persisted. Here’s what I need from you: • Diagnose the exact cause of the loop (session handling, load balancer stickiness, Cognito/IAM policy, or any other AWS-related misconfiguration). • Restore normal authentication flow so clients can reach their dashboards again. • Provide a concise technical summary of the root issue and the steps you took, so we can avoid a repeat...
Dispongo de un VPS limpio y quiero poner en marcha una instalación completa de Odoo. Necesito que la instancia quede lista para producción, con el módulo de Verifactu plenamente operativo y los siguientes componentes activos y configurados: • Gestión de inventarios • Facturación • Gestión de clientes (CRM) • Compras • Rutas Para la parte de facturación requiero: • Emisión de facturas conforme a Verifactu • Gestión de pagos • Consulta del histórico de consumos de cada cliente Además del despliegue, valoro tu acompañamiento técnico durante la implantación: revisión de parámetros, prueba de flujos y ajuste fino de permisos...
I need to interact with my custom Linux-based application through four independent sessions that appear side-by-side inside a single browser tab. When I open the page I should see the application running in four resizable panes (a 2 × 2 grid is fine), each session operating completely isolated from the others, yet streamed over one remote-desktop–style connection. The solution may build on RDP, VNC, SPICE, WebRTC, or any comparable protocol; what matters is low-latency keyboard and mouse responsiveness and a clean way to embed the composite view in an HTML page without requiring plugins. Server components will run on Ubuntu 22.04 LTS, so anything you write or configure must be compatible with that environment. Client side should work in the latest Chrome and Firefox. Deli...
We are migrating and hardening a healthcare-oriented web platform on AWS. We need an engineer (or small team lead) who can discover the current environment, design a safe cutover plan, execute migration and modernization (lift-and-shift where appropriate, refactor where required), and leave us with documented, automated operations (IaC, CI/CD, observability, backup/DR, security controls). What I expect from you • Review the current EC2, RDS, and S3 configurations, then right-size or redesign them for lower cost without hurting performance. • Implement cost-saving measures such as auto-scaling policies, spot or reserved instances, storage life-cycle rules, and any other best-practice features you recommend. • Harden the setup with sensible security settings and monitor...
I need a complete, self-hosted email solution for a small business that I’ll be running on a Linux server (Ubuntu or CentOS—whichever you feel is best for the chosen stack). The key objective is to move away from third-party providers and gain full control over our mail, security, and data compliance. The specific mail-transfer agent is still open: Postfix, Exim, Mailcow or another proven alternative can be used, as long as the end result is stable, secure, and straightforward to maintain. What I expect from you: • A production-ready mail server configured with SMTP, IMAP/POP3, spam and virus filtering, DKIM, SPF, DMARC, and valid SSL/TLS certificates. • Simple webmail access and clear instructions so that I can add domains, users, and aliases without touching...
I need an experienced systems professional who can take ownership of my production servers from the ground up. The job starts with a full audit of the existing Linux stack (Ubuntu 22.04 on AWS EC2), then moves into tightening every layer—optimising configuration, hardening services, and putting robust security controls in place. What matters most to me is confidence that the machines are patched, performance-tuned, and continuously protected. After the initial hardening you will set up real-time monitoring and alerting (Prometheus + Grafana is currently installed but not fully wired), document a clear maintenance schedule, and remain on hand for rapid incident response. Deliverables • Comprehensive audit report with recommended fixes • Implementation of agreed configu...
I am seeking an experienced developer to build an Apache Cloudstack with a focus on VM Service for our public cloud, aiming primarily at running virtual machines for software development. This job will demand a well-grounded understanding of networking devices and Cloudstack configurations, as well as an adept knack for integrating Ceph storage systems as necessary. The ideal candidate for this project will be able to: - Construct a highly effective and reliable Apache Cloudstack with comprehensive VM Service. - Configure networking devices optimally for the public cloud setup. - Integrate Ceph storage systems seamlessly into the Cloudstack configuration. When submitting a proposal, please give a detailed breakdown of your proposed process, including timelines and potential challenges...
ROLE SUMMARY We are seeking a hands-on AI Systems Engineer with strong DevOps and LLM integration experience to design, deploy, and optimise a self-hosted AI agent (OpenClaw) running on a VPS. This is not a basic chatbot project. The role involves building a persistent, autonomous AI system that integrates: • LLMs (OpenAI, Claude, etc.) • Messaging platforms (Telegram) • Web-based dashboards • Task execution workflows CORE COMPETENCIES REQUIRED 1. DevOps & Infrastructure (Non-negotiable) The candidate must have real production deployment experience: • Linux server management (Ubuntu preferred) • VPS provisioning (Hetzner, AWS, DigitalOcean, etc.) • Containerisation: • Docker • Docker Compose • Reverse proxy setup: &bu...
I'm looking for someone to install Ubuntu on my machine for personal use. Requirements: - Install the latest version of Ubuntu - Ensure the installation is set up for personal use Ideal Skills and Experience: - Experience with Ubuntu installation - Familiarity with personal use configuration
Saya membutuhkan sebuah script pengujian keamanan khusus untuk VPS DigitalOcean yang saya kelola. Fokus pengujian adalah pada ketahanan layanan terhadap serangan DDoS sehingga saya bisa menilai seberapa cepat server melambat, titik kegagalan, serta parameter yang perlu dioptimalkan. Ruang lingkup yang saya harapkan: • Menulis script (bash atau python) yang dapat mensimulasikan traffic DDoS secara terukur—misalnya melalui flood HTTP/HTTPS atau UDP—tanpa merusak sistem file atau mengeksekusi payload berbahaya. • Opsi konfigurasi agar saya bisa menentukan durasi, intensitas, dan jenis traffic. • Log real-time dan ringkasan hasil (CPU, RAM, bandwidth, response time) setelah pengujian selesai. • Panduan penggunaan singkat: cara menjalankan, parameter apa s...
I have a clean Linux server waiting for a full Horde Groupware Webmail Edition deployment. Your task is to turn that box into a production-ready mail system, complete with secure web access, working SMTP/IMAP services, and a short hand-over guide. Key deliverables • Horde Groupware Webmail Edition installed and reachable over HTTPS • MTA (Postfix or Exim—your call) and IMAP/POP service configured, spam-free mail flow verified with external inboxes • SSL/TLS certificate in place (Let’s Encrypt is fine) • One test domain and mailbox created, end-to-end send/receive confirmed • Brief documentation of the steps and configs applied I will supply the distro details, DNS records, and root credentials once we agree on timing. Success is a smooth l...
A FusionPBX (FreeSWITCH) installation and custom call flow configuration will be performed on a cloud server (Debian-based). The technical requirements of the project are as follows: 1. Server and Panel Installation: Installation of an up-to-date and stable FusionPBX on a Debian operating system. Configure firewall and Fail2Ban settings. 2. SIP Trunk and Incoming Call Management: Definition of SIP Trunk information (e.g., Telnyx / Verimor) provided by me. Creation of an enterprise welcome menu (IVR). Directing callers to the relevant extensions via the voice menu. 3. Dynamic Mobile Phone Routing (Critical Point): Incoming calls to extensions will be routed directly to their mobile phones. Important: The mobile numbers to which extensions are routed will not be fixed. Each extensio...
I already have a premium SafeVPN subscription, the OpenVPN Connect installer for Windows, and a U-S-based .ovpn configuration file ready to go. What I need is an intermediate-level OpenVPN user who can jump in, import the file, connect to the U-S server successfully, and then show me exactly what you did. Here’s how we’ll work together: • Using remote-desktop or screen-share, import the provided .ovpn profile into OpenVPN Connect. • Verify the tunnel comes up cleanly—no DNS leaks, correct IP geolocation shows in the U-S, and traffic flows without drops. • Capture clear screenshots as you work and compile a short, plain-English walkthrough I can keep for later. Once the guide and screenshots reach me and the connection proves rock solid, the job is don...
I want a clean Ubuntu 24.04 (Debian-based) install turned into a central hub for the video coming from my Hiseeu NVR. The goal is simple: any time I click an icon or bookmark I should land on a web page that shows every camera live, lets me scrub back through stored footage, and works just as well from a desktop browser as it does on a phone. I’m not sure yet whether it makes more sense to repurpose an existing box or start from scratch, so I’ll lean on your advice there. The same goes for the NVR’s API or ONVIF capabilities—I may need you to confirm what is available and then wire it up. Deliverables • A fully configured Ubuntu 24.04 server (or guidance on fresh install vs. reuse) • Integration with the Hiseeu NVR so all camera streams record an...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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