Secure MQTT & OTA VPS Deployment

@kuldeepvk

Hi, I have 10 years of experience and knowledge as system administrator setup and management of different Linux Web Hosting Servers, AWS servers,Cloud Servers, GPU Servers, Server Monitoring, Server Security, Server Optimisation, Mailing Servers, Email Marketing, SSL, DNS, Apache, Nginx, etc with Cpanel, Plesk, Virtualmin or other panels. Services such as cPanel/WHM, Plesk, Virtualmin LAMP Stack, Tomcat, MySQL/MariaDB, Zimbra, Postfix mail server, Mailenable, smarter mail, MS SQL,AWS , etc. Please discuss to start. Thank you

@nolk

Hi there, With 10+ years of Linux/Unix Admin experience, I'll be happy to help you with this setup. Have lots of knowledge with Ubuntu, MQTT and Mender - will cover all those requirements. I'll need ssh access to your ubuntu box.

@sjohn117

Hi there, I’m Sean, an AI & Full-Stack Developer with 5 years of experience specializing in deploying secure cloud infrastructures, including expertise in MQTT protocols, Docker solutions, and Linux server administration. I have successfully established robust MQTT brokers and managed OTA updates for IoT fleets. I understand the importance of security and performance in your project. I can do this project perfectly by implementing TLS with mutual authentication for Mosquitto, configuring a secure Mender server, and ensuring robust network security through fail2ban and precise firewall rules. My approach will guarantee isolation and maintainability through organized configuration and deployment scripts. I typically deliver this scope in 7 days, including tests and deployment scripts. My final solutions will adhere to best practices for clean code, documentation, and security checks. Could you specify the expected number of devices you plan to support with this setup? Best regards,

@trm66614

Hi there,Good evening I am Talha. I can work with your project skills VPS, Linux, Debian, Ubuntu, MQTT, System Admin, Security and Docker I am excited to present my proposal, which centers around a personalized approach designed to elevate your project. We will start with an in-depth consultation to gain a deep understanding of your project's unique requirements, goals, and constraints. Our commitment to customization means that we will tailor our services to align perfectly with your project, and we will explain how this approach will meet your expectations. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan

@arbu1499

This is exactly the kind of secure infrastructure setup I enjoy—provisioning an Ubuntu VPS into a clean, reproducible IoT hub with Mosquitto (mTLS on 8883), signed-artifact enforcement in Mender OSS, and fail2ban actively protecting SSH, MQTT, and the API. I’ll deliver a single docker-compose stack (or scripted setup) that isolates services, locks down UFW, passes TLS pub/sub tests, enforces signature validation, and auto-bans after three failures. You’ll also get a concise README covering rebuilds, backups, and certificate rotation so future maintenance stays painless. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T

@usamae

Hey, I've set up similar IoT stacks before - Mosquitto with mutual TLS + Mender for OTA updates, all containerized on Ubuntu VPS. Your setup is pretty straightforward. Here's what I'll deliver: - Docker Compose stack with Mosquitto (TLS + mutual auth) and Mender open-source edition configured for signed artifacts only - Certificate generation script using your root CA, pre-staged client certs for testing - fail2ban rules for SSH, MQTT (8883), and Mender API - auto-ban after 3 failed attempts - UFW firewall locked down to ports 22, 443, 8883 - Deploy script that can rebuild the whole thing from scratch on a fresh Ubuntu box - README covering backup locations, cert rotation, and how to troubleshoot common issues I'll test it end-to-end before handing over - successful MQTT pub/sub with TLS certs, firmware upload/deployment through Mender UI (with signature enforcement), and fail2ban triggers working as expected. Timeline: 3-4 days depending on any Mender quirks. Budget: $220 CAD. - Usama

@tomsl5

Hi there, I just read your posting and I am interested in your project I am a software engineer with 9+ years experience in AI web and mobile app development. So I am familiar with MQTT, VPS, Linux, System Admin, Security, Ubuntu, Debian and Docker. With extensive experience in , I understand exactly what you want and am confident that I can handle this project perfectly. Let me know if my profile looks interesting, and we can discuss more details. Best regards, Toms L.

@fakhara1ha

Hey , I just finished reading the job description and I see you are looking for someone experienced in System Admin, MQTT, Linux, Debian, VPS, Security, Docker and Ubuntu. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further.

@katerynai2

Hello, As a seasoned freelancer, I've had over eight years of experience crafting rock-solid infrastructure tailored to specific project needs. Not only do I understand your request for a VPS that guarantees top performance, security, and maintainability, but I also have ample experience delivering such solutions. My strong command on Linux operating systems ensures that I can effectively bridge the gap from your desired twin services -- Mosquitto and Mender -- to their successful deployment on a clean Ubuntu image. With your focus on security, my track record in building reliable applications will be a valuable asset to ensure mutual authentication using your root CA for Mosquitto and Mender's signature enforcement process, protecting against SSH intrusion and IPv4 filtering through fail2ban. My approach of utilizing Docker or systemd-managed services will guarantee both logical isolation and readable configurations for easy backup while granting you control to swiftly rebuild the environment. Furthermore, your mention of concise documentation is another forte of mine. As someone familiar with CI/CD practices and being comfortable across a full-stack, I'm capable of providing not only a functionally seamless provisioning script but also a comprehensive README to ensure straightforward rebuilding steps when needed, precise information on certificate rotation and reduced downtime during backup restoration. Let's make your IoT fleet optimized and secure! Thanks!

@GobindSawarn

With my expertise in developing clean and future-ready web solutions, I am confident that I am the best candidate to handle your Ubuntu VPS project. My proficiency in working with ERP/CRM systems, custom dashboards, and workflow automation guarantees an approach that is not only secure but also high-performance and maintainable over time. Regarding your specific requirements, my experience in building secure MQTT environments will prove invaluable. I can set up Mosquitto behind TLS with mutual authentication using the provided CA, ensuring a robust IoT fleet with reliable messaging capabilities. For Mender, I will ensure the distribution of only signed artifacts, bolstering the security of your firmware updates. To further enhance security, I will employ fail2ban for both SSH and MQTT login failures on top of blocking bad certificate attempts. Meanwhile, I understand the importance of logical isolation while hosting multiple services on a single VPS and can elegantly achieve this with Docker or systemd-managed containers without compromising configuration readability or backup ease. Firewall rules will expose only the essential ports, 8883 for MQTT, 443 for Mender/HTTPS, and 22 for SSH. Lastly, all code, configurations and deployment scripts or docker-compose details will be excellently documented in a concise README to empower easy maintenance and rebuilds when required.

@johncyruss

As an experienced Linux developer, your IoT fleet's security and performance will be my number one priority, making me the best fit to craft a rock-solid hub for your MQTT and OTA requirements. I have extensive experience in Ubuntu VPS management and will skillfully configure Mosquitto with mutual authentication TLS, guaranteeing that only authorized communication is allowed. Additionally, I will successfully integrate Mender in its open-source edition with your pre-signed firmware, ensuring thorough validation before distribution. Your project's security demands are not lost on me. Using fail2ban at various points (SSH, Mosquitto, Mender’s API), I will implement three-consecutive-fail-block to maintain optimal security measures. My core drive to make complicated tasks simple and usable will be evident as I skillfully use Docker or systemd-managed services to ensure logical isolation while maintaining an easily readable configuration and backup process for you.

@joelmarkharris

✅✅As an experienced full-stack developer and system architect, I'm well-suited to tackle your Secure MQTT & OTA VPS Deployment project. Over the course of my eight-year career, I've led numerous complex projects much like yours, where security, performance, and long-term maintainability are paramount. My broad range of technical skills aligns closely with your requirements and ensures I can facilitate seamless communication between your IoT devices without compromising safety. One strong suit I bring to this project is my familiarity with clean and scalable architecture. I am adept at leveraging tools like Docker and systemd to keep configurations readable and easily accessible for backup, while maximizing security—a crucial need in your case. Additionally, my extensive experience in automating workflows will prove particularly useful as we tailor deployment scripts or compose stacks that enable you to rebuild this environment within minutes. From understanding your root CA needs to generating the certificates that allow successful MQC- TLS testing, I'll ensure all your specifications are met. Furthermore, my ability to work effectively and efficiently both independently and within a team undeniably promises a swift and high-quality outcome for our project together.