Linux Jobs

Busco un profesional con experiencia real en recuperación de webs comprometidas, hardening de servidores Linux, seguridad web y configuración avanzada de Cloudflare. Hemos sufrido un ataque: comprometieron nuestra web y el servidor fue infectado hasta el punto de que terminó participando en un ataque DDoS hacia terceros. Como consecuencia, Google marcó nuestro dominio como spam, pese a que antes teníamos una reputación muy buena. Situación actual Tenemos una copia de seguridad completa de la web. Disponemos del servidor con Ubuntu 24.04. La web ya estaba detrás de Cloudflare, pero aun así fue comprometida. Necesitamos volver a publicar la web, dejarla plenamente operativa y blindar la infraestructura al máximo. Qu&eacu...

Soy un arquitecto de mirada transdisciplinaria, busco compartir mi visión arquitectónica en cualquier tipología —residencial, comercial o industrial— También busco colegas que quieran llevar mis proyectos a otro nivel en la infraestructura digital y que pueda cubrir el ciclo completo del proyecto según se requiera. En algunos casos solo necesitaré el diseño conceptual; en otros, la documentación técnica lista para permisos o la supervisión directa en obra. El estilo tampoco es un límite: moderno, clásico, minimalista o la mezcla que mejor se adapte al contexto y a la identidad del cliente. Busco a alguien que: • Sea capaz de elaborar anteproyectos claros y argumentados. • Entregue ...

Mi equipo presenta fallos constantes ligados al sistema operativo: pantallas azules, bloqueos inesperados y lentitud al arrancar. Busco a alguien con experiencia en soporte técnico y reparación de computadoras que pueda: • Diagnosticar la causa raíz de los errores del sistema operativo (Windows / Linux, según convenga). • Aplicar las correcciones necesarias: reparación de archivos dañados, restauración de servicios, actualización de controladores o reinstalación in-place si hiciera falta. • Optimizar el arranque y el rendimiento general, asegurando que no queden procesos colgados ni conflictos de compatibilidad. • Entregar un breve informe final con los pasos realizados y recomendaciones preventivas. ...

I’m looking for rapid, hands-on help to diagnose and fix a production server that is currently misbehaving. The priority is to identify the root cause, apply a clean fix, and document what was done so the issue does not re-appear. Please tell me about the similar server problems you have resolved in the past, the technologies or operating systems you are most comfortable with, and roughly how quickly you can begin. Solid, relevant experience is what will guide my choice.

SRE / DevOps Engineer We’ve built a real-time marketplace. Speed and reliability matter more than anything. We’re live. Things move fast. We need someone who can take ownership of infrastructure and make it solid. What I need you to do - Take full ownership of infra and DevOps - Stabilize the system under real usage - Improve performance, uptime, and response times - Set up proper monitoring, alerting, and logging - Handle deployments cleanly with zero downtime - Lock down security and access properly - Identify weak points and fix them without being told Current stack (you should be comfortable here) - Backend: Node.js - Frontend: React / mobile app - Infra: AWS (EC2, S3, likely more coming) - APIs: real-time interactions, latency matters - Early-stage system, not perfec...

I need a lightweight, self-hosted URL shortener that runs on my VPS under my own domain and uses Java for the backend with a MySQL database. The core feature is the ability to create fully branded links such as (custom slugs, no third-party dependency) and redirect them instantly. The admin dashboard can stay basic and purely functional; as long as I can add, edit, disable, and delete links quickly, that’s perfect. Analytics must be baked in—total and unique clicks, referrer data, visitor location, and timestamps—all viewable in the same interface. Every redirect has to be fast, reliable, and HTTPS-secure; I already have an SSL certificate on the server, so the application just needs to respect it. Full code ownership is essential. Please include: • A clean Java ...

I need a small self-hosted app that turns any email link I create into a clean, branded URL that lives on the domain I already own. The redirect must keep the look and feel of my brand while giving me insight into how each link performs. Here’s what matters most: • A simple web UI where I can create and edit short, customizable slugs (e.g., ) • An analytics dashboard that records total clicks, unique clicks, referrer, location, and date-time stamps • Fast, reliable redirects with no third-party dependence You’re free to pick the tech stack you’re most comfortable with, as long as it installs on my VPS and the code remains fully under my control. Please include setup instructions and a short read-me so I can redeploy or move servers later if needed. I&rsq...

I run a cluster of more than five WordPress sites on DigitalOcean and need someone who can step in as my go-to technical partner. The work is ongoing and will be billed on a monthly maintenance basis, so consistency and reliability matter just as much as raw skills. Each month you’ll make sure everything runs smoothly: applying core, theme, and plugin updates, tightening security, keeping performance on point, and making sure off-site and on-server backups are intact and restorable. The stack is flexible—I’m open to cPanel, Plesk, or working without a panel if that keeps the servers lean—so feel free to recommend whichever setup you believe will serve long-term stability and speed. I’m currently on DigitalOcean droplets and may expand, so your advice on scal...

I need a single .img file that I can flash straight to a micro-SD, slot into a Raspberry Pi 4, power on, and start mining—no extra setup, no internet connection, just plug-and-play. The image must boot directly into an advanced graphical interface that lets me monitor hashrate, temperature, accepted shares, pool status, and switch coins without touching the command line. The core requirement is support for the three main algorithms I selected—SHA-256, Ethash, and Cryptonight—so the device can tackle my full portfolio of roughly forty coins. Performance matters: the system should auto-detect optimal overclock settings for the Pi 4, make efficient use of its GPUs/CPUs, and offer pool configuration options over the local network while remaining completely self-contained (...

My NEC SV9500 PBX refuses to come back online after a routine restart. The system hangs during boot; I do not see telephones registering and I’m not sure whether any error codes flashed on the console because I wasn’t watching closely. I need an engineer who knows the SV9500 architecture, maintenance commands, and PCPro (or equivalent) to: • Connect remotely (or guide me onsite) to diagnose why the call-processing software is not loading. • Identify and clear any database, card, or processor faults preventing a full start-up. • Bring the PBX to an operational state where extensions are live and calls flow normally. Acceptance will be when the system completes its boot cycle, endpoints register, and we can place internal and external calls without drops...

My website is hosted on GoDaddy and is still served over plain http. I need a professional who can take me all the way to a fully secure https setup. I do not yet have an SSL certificate, so part of the job is acquire the right one. Once the certificate is purchased, I’ll rely on you to install it, configure the server, and make sure every request is redirected automatically from http to https. The finished result must show the secure padlock on every page with no mixed-content warnings. Key deliverables: • Advise on and obtain the SSL certificate • Install and activate it on my GoDaddy hosting account • Set up 301 redirects site-wide • Fix or flag any mixed-content issues so all assets load securely • Test in major browsers and provide a short ha...

Description: I am looking for an existing dating CMS developed in a modern and easily understandable programming language (PHP or other common technologies). The following requirements are important to me: • The system must be based on up-to-date and secure versions of backend and database technologies. • It should include a modern, user-friendly, and German-language frontend for end users. • A well-designed and intuitive admin backend is required, allowing me to manage settings, content, and users efficiently. • The system should have a modular architecture and be easy to extend. • The code must be well-structured and/or documented (e.g., via Git or similar), so that my own developers can quickly understand and further develop it without relying on the origi...

look, this panel must be connected to zunga poker from fBk, this zunga poker texas holdem is on fb, I need a panel with whom when I enter the panel with my token or fBk password or user id, when I go to the panel and sit on the board the panel generates ds chips for me it takes from others or I don't know what, the panel must have options so that I can enter with 5-7-10 profiles if zslim, or if possible ds mi panel me generates chips, achieves a big level on profiles, takes all the rewards that zunga gives, it's even better, but I need a panel because there are people, you can see when you play that fo exist and people work with it, I need a panel to generate chips for any peofil on a saw who has an account, 10-20-30 profiles a day, I need a panel that generates chips for me, the...

I have a small middleware layer that sits between two SaaS platforms, receives raw JSON, reshapes it, performs a few calculated roll-ups, and then pushes the cleaned payload back out through a remote API. The work is 100 % back-end: no HTML, no JavaScript, no database, just pure PHP. What I need you to do • Modify incoming data structures so they match the target schema (field mapping, nesting, key renaming, type casting). • Aggregate sets of records into concise summaries before dispatch (totals, counts, grouped objects). The code has to be clean, readable and function/procedural oriented, making smart use of native array functions, generators. We use our own framework based on vanilla PHP. Deliverables • A self-contained PHP that accept a JSON string or a GET/PO...

Dynamic dashboards with all moving objects

Hiring: Site Reliability Engineer (SRE) – Observability (1 month Contract) - Work from Office Location: Pune Employment Type: 1 month Contract Experience: 4–6 Years We are looking for a skilled SRE – Observability Engineer to manage and enhance monitoring solutions across complex systems. Key Responsibilities: • Design and implement end-to-end observability solutions (metrics, logs, traces) • Monitor application performance, APIs, networks, and infrastructure • Build dashboards, alerts, SLIs/SLOs for proactive issue detection • Automate monitoring, alerting, and incident response workflows • Collaborate with DevOps, development, and infrastructure teams • Provide L2/L3 support for observability tools and platforms • Ensure syst...

My Dell PowerEdge T640 refuses to start. The system gives error lights and the power LED simply blinks. I have already: • double-checked all power connections • swapped in a known-good power supply • cleared CMOS and reset the BIOS None of these steps helped, so the fault appears to be on the motherboard itself. I’m looking for an experienced server-grade hardware specialist who can: 1. Walk me through advanced board-level diagnostics to pinpoint the failed component(s), or accept the board for bench testing if that proves easier. 2. Carry out (or instruct me on) component-level repair—re-soldering, replacing VRMs, caps, or any other defective parts discovered. 3. Verify that the board posts successfully and produces a stable, error-free boot. 4...

I need a small, purpose-built payload that I can inject into my own desktop application to probe for buffer-overflow weaknesses. Off-the-shelf fuzzers such as libFuzzer, AFL, or similar suites are off-limits for this exercise; the whole point is to rely on clean, hand-written C code and low-level debugging techniques. You’ll be working on a recent Linux distro where I can give you SSH access to a hardened test VM. Expect to spend most of your time inside vim, gcc, and gdb (remote debugging with gdbserver is fine if you prefer). The program you’ll attack is closed-source to everyone except you and me, so everything must stay in userspace—no kernel tricks, no external libraries that do the heavy lifting. What I’m after • A minimal C source file (or small set ...

I have a fresh Proxmox installation in place and now need an experienced hand to complete the next step: configuring a set of Linux-based virtual machines from the ground up. Your job is to handle the full system setup and configuration workflow—networking, storage assignment, template creation, and any tweaks required so the VMs boot cleanly and are ready for application deployment. Please bring solid, demonstrable experience with the Proxmox VE interface, CLI utilities, and typical KVM/QEMU guest-optimisation practices. Once you’re done I expect: • A working pool of Linux VMs (Debian or Ubuntu preferred, but I’m open to other mainstream distros if you recommend them) • Basic resource limits, bridge/VLAN networking configured, and a brief hand-over note exp...

I’m facing persistent outbound packet loss on my Linux server. The problem appeared a few days ago, right after I upgraded my hosting plan, and it has started to affect production-level traffic. Latency is acceptable and inbound packets arrive cleanly; only the outbound stream is dropping frames. I need someone who can jump in immediately, trace the root cause, and apply a permanent fix. Typical tools for the job might include tcpdump, traceroute, iptables, nftables, netstat, or any monitoring utilities you prefer—as long as the solution is clearly explained and reproducible. Acceptance criteria: • Outbound traffic shows 0 % (or normal-range) packet loss under load tests. • A short summary of what was wrong and the exact commands or configuration changes you app...

Description: I am looking for an existing dating CMS developed in a modern and easily understandable programming language (PHP or other common technologies). The following requirements are important to me: • The system must be based on up-to-date and secure versions of backend and database technologies. • It should include a modern, user-friendly, and German-language frontend for end users. • A well-designed and intuitive admin backend is required, allowing me to manage settings, content, and users efficiently. • The system should have a modular architecture and be easy to extend. • The code must be well-structured and/or documented (e.g., via Git or similar), so that my own developers can quickly understand and further develop it without relying on the origi...

I got a new requierement that might be interesting for you guys. It is in the following location: 1570 East P Street Ext., Newton, NC 28658. The scope is this: • Proven work experience as a Technical Support Engineer, Desktop Support Engineer, IT Help Desk Technician or similar role • Hands-on experience with Windows/Linux/Mac OS environments • Experience in ITSM Ticketing tools (ServiceNow, Remedy, Jira, etc.) • Experience with Autopilot and Intunes • Good understanding of computer systems, mobile devices and other tech products • Ability to diagnose and troubleshoot basic technical issues, BSoD (Blue Screen of Death) • Teams & Outlook Troubleshooting • Excellent problem-solving and communication skills. • How to identify the Domai...

I have large CSV lists of addresses and I need a straightforward tool that tells me which emails will actually reach an inbox. The key requirement is deliverability testing; I’m not interested in simply catching typos—I want to know whether each address can really receive mail. Domain-level validation must be part of the logic. The script should check that MX records exist and that the domain is capable of accepting messages. If you have a proven, low-latency way to add additional checks (such as a lightweight SMTP handshake that stops short of sending a message) I’m open to it, as long as it doesn’t violate host policies or slow the bulk run noticeably. Workflow I have in mind: I drop a file (CSV or TXT) containing thousands of emails into a folder, run the pro...

I'm looking for an experienced developer to help set up and manage a public DayZ server. Key Requirements: - Expertise in DayZ server setup and management. - Experience with custom mods and settings is a plus. - Ability to provide suggestions for mods and custom settings. Ideal Skills: - Proficiency in server management. - Familiarity with DayZ mods and community preferences. - Strong problem-solving skills and reliability. Please provide a portfolio or examples of previous work.

I have a fresh Ubuntu box that must be turned into a fully-functional, production-ready web server. The core of the job is server setup and ongoing management: securing the OS, installing the full web stack, and making sure everything runs smoothly day-to-day. The server will host multiple sites, so I need virtual-host configuration, SSL (Let’s Encrypt) automation, log rotation, routine backups, and monitoring in place. I have not committed to a particular web engine yet; if you feel Apache, Nginx, or Lighttpd would serve my traffic profile better, present your reasoning and we’ll proceed with the best fit. Deliverables • Hardened Ubuntu (latest LTS) with all updates applied • Chosen web server installed, tuned, and benchmarked • Firewall & fail2ban con...

I run a PHP-based webhook on a Hostage VPS KVM8. During traffic spikes the endpoint suddenly answers with HTTP 429 instead of the expected 200, so the calling service retries and eventually fails. The code itself has no limiter, which makes me suspect a server-level restriction that I’m not yet aware of. Your task is to trace the component issuing the 429s and tune or disable the rule so the webhook survives peak loads. It could be an Nginx/Apache rate-limit, ModSecurity, fail2ban, iptables, or something similar—I’m open to whatever you find. Acceptance criteria • Pinpoint the exact service or module returning 429 • Apply and document a configuration fix (or clean, minimal code patch if that proves necessary) • Stress-test the endpoint and demonstra...

Our client runs a call center with Nigerian agents calling US businesses. They need a Python script that makes the agents' accent sound more neutral and clear to American ears in real time during live phone calls. The hard part is already done. There is a fully built Node.js server that handles the live call audio. We just need you to write one Python script that plugs into it. What the script needs to do: Receive live audio from the server, process it through a voice conversion model to soften the Nigerian accent, and send the processed audio back. The whole process must happen in under 150ms so the conversation feels natural with no delay. Tech details: Audio comes in as mulaw 8kHz chunks. You can resample internally for better model performance then convert back before sending ...

Our campus network runs on a Fortinet stack—FortiGate firewalls at the core and FortiAP access points across three buildings. I need an experienced Fortinet administrator to tighten security, build out VPN connectivity, and tune ongoing visibility. Scope of work • FortiGate Firewall – create or refine security policies that segment users, servers, and guest traffic while following best-practice hardening. • FortiGate Firewall – set up site-to-site and remote-access VPNs, test fail-over, and document the steps so I can replicate them. • FortiGate & FortiAP – enable and verify logging to our existing syslog/SIEM, ensuring alerts surface the right information without noise. • FortiAP – confirm wireless profiles and VLAN assignment...

I run a Linux VPS on Bluehost that powers a handful of PHP web applications backed by MySQL. I’m ready to hand off the day-to-day technical work so I can focus on the product, but I need everything kept running smoothly right away. You’ll receive full Control Panel access (no root SSH), and from there I expect three core services: • Server maintenance – keep the OS, Apache, PHP versions and security patches up to date, monitor logs and resource usage, and restart services if they stall. • Database management – schedule automated MySQL backups, tune indexes for performance, and restore data quickly if ever required. • Code deployment – pull the latest code from the Git repository, run any composer / npm steps, update environment variables, ...

I need help setting up OVH’s native DDoS Protection on my servers so they stay online during traffic spikes and malicious floods. I alreadu have 13 rules but when atrack is coming its mitigating server Scope • Audit my current OVH hosting configuration and identify exposed points. • Enable and correctly tune OVH DDoS Protection profiles (VAC). • Verify that legitimate traffic is not blocked while common attack vectors are filtered. • Provide a short step-by-step guide so I can adjust the rules myself in the future. Success criteria • Service remains reachable while you simulate typical Layer 3/4 floods. • No noticeable latency increase for normal users after the changes. Experience with OVH Manager, VAC, and network security best pr...

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I need a full-featured VPN application built for Android, iOS, and Windows. The core experience must feel identical on every platform: users pick a server, hit connect, and enjoy a secure, leak-free tunnel. Essential functionality • Server list that can be refreshed remotely, sorted by real-time ping, and filtered before connection • One-tap Server selection plus an Auto-connect option that obeys user rules (on app launch, on unsafe Wi-Fi, etc.) • Always-on Kill switch that survives network changes and guarantees zero traffic outside the tunnel • DNS management inside the app so I can point users to custom resolvers or a local blocker Protocol support OpenVPN (TCP & UDP), WireGuard, L2TP, and an HTTPS Proxy mode must be selectable per server or globally. Swi...

I have a fresh Debian-based VPS that I want to turn into an all-in-one hosting box running the latest ISPConfig 3. Your job is to install ISPConfig from scratch, harden the operating system, and leave me with a control panel that can immediately host sites, databases, and mailboxes under HTTPS. Here’s what I expect when you are done: • A clean, documented installation of ISPConfig 3 on my VPS (Debian / latest). • Web stack (Nginx, PHP-FPM, MariaDB/MySQL) ready for virtual hosts. • Fully working mail stack with standard protocols enabled so I can create domains and send/receive mail right away. • DNS, FTP/SFTP, and any required system users configured inside ISPConfig. • Security basics in place: firewall rules, automatic SSL via Let’s Encrypt,...

I am seeking a high-level systems programmer to develop an Endpoint Agent for a custom DLP (Data Loss Prevention) system. This is a long-term project starting with an MVP. Key Responsibilities (MVP): Kernel Level: Develop a Windows File System Minifilter Driver to monitor/block file operations on Removable Storage, Network Shares, and Cloud folders (Google Drive, OneDrive). Shadow Copying: Implement silent background copying of intercepted files to a local buffer before transit. Device Control: Implement USB/Peripheral monitoring and blocking based on VID/PID/Serial Number. Activity Tracking: Develop a low-impact engine for: Keylogging & Clipboard monitoring. Screen capture (JPG/PNG) triggered by events (e.g., app switch, PrintScreen). Real-time Desktop streaming (PoC). Tech St...

After moving my sites from RamNode’s cloud hosting to a new VPS, several core services stopped working. WHM and cPanel are installed and accessible, yet there were issues with the site. I changed the mailservers back to cloud hosting. What I need right now is a full review and clean configuration of the server so every component—mail server, FTP service, and DNS including nameserver glue—operates smoothly. Please log in, audit each service, adjust the settings, and document any permanent changes you make. Before I repoint the real nameservers, show me a working preview link or temporary hostname that proves the sites load correctly and email delivers both ways. Please also help me verify the glue records through WHOIS, so include that in your checklist. Deliverable for...

I need an India-based tutor who can take practical based highly interactive online sessions covering Linux DevOps fundamentals, broader Cloud concepts, and hands-on AWS workflows. The audience already understands the basics, so the material should sit at an intermediate level—deeper than “Hello World” demos yet not so advanced that we lose learners who have only a year or two of real-world exposure. Azur will be added advantage not mandatory Here is what I expect: • A clear session roadmap that blends DevOps culture, CI/CD pipelines, container orchestration, general cloud architecture patterns, and AWS-specific services such as EC2, S3, IAM, CloudFormation, and Lambda. • Live delivery via Zoom, Google Meet, or a similar platform, with screen-sharing, demons...

I’m setting up a dedicated tele-calling environment and need an IVR system built (or customised from an open-source/cloud platform) that focuses on efficient call routing for both inbound and outbound traffic. Core requirements • Inbound calls flow through multi-level menus and reach the correct queue or agent without delay. • Every inbound conversation is automatically recorded and stored with searchable time/date tags. • Outbound campaigns must dial through the same platform so agents work from a single interface, with those calls recorded in the same repository. Scope of work You’ll deploy, configure, and hand over a production-ready IVR. I expect guidance on menu design, prompt management, real-time monitoring and a clean dashboard where my team...

I'm seeking an experienced embedded software developer to create drivers for an ARM-based board running Embedded Linux. Requirements: - Expertise in driver development, particularly for Embedded Linux on ARM architecture. - Proficiency in C/C++ programming languages. - Strong understanding of Linux kernel and device drivers. - Experience with ARM-based hardware and debugging tools. Ideal Skills and Experience: - Background in embedded systems and real-time processing. - Familiarity with development tools like Git, Makefile, and cross-compilation. - Problem-solving skills and ability to work independently. Please provide samples of similar work done and estimated timelines.

I need a small server-side application that reads a .FIN file, extracts the M0 and M1 fiat balances it contains, converts those balances to USDC/USDT at the current rate, and routes the settlement through Blockchain. Here’s what matters most to me: • Codebase in Python. Please keep the structure clean, modular, and ready for unit tests so future maintenance is painless. • Direct integration with Circle Mint and Tether for issuing and redeeming USDC/USDT. If Circle’s API is temporarily unavailable we can discuss a fallback—Tether’s own API or an exchange gateway like Kraken—but Circle Mint is the primary path. • Accurate parsing of the .FIN format. The file can hold multiple currency rows, so the parser must detect fiat type, pull the M0/...

I run five Magento 2.4.7-p1 ecommerce stores on a single dedicated server and have discovered a redirect to the malicious domain lanhd6549tdhse.top. I need someone to trace every trace of this malware, remove it cleanly, and harden the server so the infection does not return. A fresh, full backup from last night is ready, and an antivirus already runs on the machine, but the infection slipped through. What I expect from you: • Thorough file-system and database scan to locate the malicious code, scripts, or cron jobs referencing • Clean removal without disrupting live sales or order data • Security patching of Magento 2.4.7-p1 core and extensions where relevant • Server hardening suggestions and implementation (firewall rules, permission tightening, malware signa...

We are seeking a skilled freelancer to extract daily and historical stock market data from a finance website. The ideal candidate will have experience in data extraction, APIs and web scraping, with a strong understanding of finance and data analysis. The task involves collecting and organizing data into a structured format for further analysis. Should be a very easy and straighforward job; usually completed even within a few hours!

Summary On demand work. We are looking for a Data Center Technician / Remote Hands technician located in **Charlotte, NC** who can assist with server assembly, installation, and cabling inside a datacenter rack.

 Work will be performed under our remote supervision using a live camera feed, with the technician following our step-by-step instructions in real time.

The ideal candidate should be comfortable working with enterprise server hardware and datacenter networking equipment.

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### Required Skills & Experience

 Typical responsibilities include:

 * Server hardware installation and configuration
 * CPU, RAM, and NIC installation
 * Rack & stack of servers
 * Datacenter cabling (fiber and ethernet)
 * Basic BIOS / boot verification
 * Following detailed w...

We are looking for a hands-on Telecom Engineer to manage a live SMS and SIP platform. Responsibilities include: Managing SMS gateway (Ozeki → Kannel migration) Setting up and troubleshooting SMPP connections Creating SMPP users and integrations Managing Asterisk SIP system (users, routing, configs) Troubleshooting delivery and connectivity issues This is a remote contract role (monthly retainer) with flexible hours, but requires availability for incident response. Requirements: Strong experience with SMPP Experience with SMS gateways (Kannel, Ozeki, or similar) Experience with Asterisk Strong Linux + networking knowledge IMPORTANT – Application Requirements To be considered, please include: Your experience with SMPP (real examples) SMS gateway(s) you have worked with Your...

Technical Mentor & Operative Architect: HA Ubuntu Cluster (Mailcow, Apache, MariaDB Replication) Job Description: [IMPORTANT: READ CAREFULLY BEFORE APPLYING] I am NOT looking for someone to just build a server and hand over the keys. I am looking for a Technical Mentor / Instructor and Operative Architect who will build a high-availability (HA) SaaS infrastructure on Ubuntu Server together with me. The goal is full knowledge transfer. You will act as my "Co-Pilot," teaching me every step so that I can maintain, troubleshoot, and scale the system myself. You should also be open to a long-term relationship for future Q&A and support. The Tech Stack & Requirements: OS: Ubuntu Server (Hardened). Orchestration: Docker & Kubernetes (K3s/MicroK8s preferred). Mail: ...

I need a streamlined booking application for our research institute’s shared instrumentation facility. The software must run natively on Linux and allow researchers to reserve precise time slots on individual instruments, see current availability at a glance, and receive immediate confirmation of their bookings. The heart of the system is straightforward time-slot management, but it also has to respect the practical realities of a lab environment—multiple instruments, overlapping user groups, and the need for an intuitive, no-training-required interface. A browser-based front end is fine as long as the back end remains fully Linux-compatible; if you have another approach that fits the platform, I’m open to it. Robust data persistence, clear error handling, and clean, w...

I need an end-to-end solution that gives me real-time visibility over our public-facing assets and any related dark-web exposure. The work is split into two equally critical parts, so please scope your approach with that in mind: 1. ASM (Attack-Surface Management) module • Discover sub-domains and other Internet-facing assets automatically • Scan and track open ports / running services, flagging changes over time • Store historical data so trends and newly exposed services are obvious • Expose clean REST endpoints for each function (FastAPI or similar in Python preferred) 2. Dark-Web monitoring module • Crawl and scrape TOR “.onion” sites for brand, email or credential mentions • Correlate findings with the asset list from the ASM mod...

Environment Dedicated server on OVH OS: Linux DNS server: BIND (named) Nameservers: → → (OVH failover IP) Problem Domains (e.g. , ) are configured and working locally, but fail globally with: SERVFAIL No Reachable Authority Example: dig @8.8.8.8 → SERVFAIL What has been verified BIND is running correctly Zones are properly configured and loaded SOA records respond correctly on both nameservers Both NS respond locally Glue records are correctly configured at the registrar Nameservers are correctly delegated at the TLD level Firewall (iptables) allows TCP/UDP port 53 DNS service is listening on both IPs Failover IP is assigned to the server interface Key Findings From another OVH server: dig @ → timeout dig @ → timeout Packet loss detected when pinging the ...

My cPanel/WHM mail server for keeps landing on the Spamhaus blocklist and mail flow stops every time it happens. The stack is straightforward—IBM hardware → VMware ESXi → AlmaLinux VM running WHM/cPanel—all hosted in our own data-center. I have already opened tickets with Spamhaus, but the listing returns as soon as they clear it, so the root cause clearly sits on our side. static IP we bought from Airtel What I need from you is a thorough audit of the server and its surrounding network to identify exactly why Spamhaus keeps flagging us and then to implement a lasting fix. That may include reviewing rDNS, SPF, DKIM, DMARC, HELO practices, outbound filtering, queue hygiene, firewall rules, and any reputation or relay issues you discover. If you spot configuration we...

I need Amazon QuickSight connected to a MySQL database that is running on an EC2 instance, then a simple first pass at visualising the data. The EC2 instance is already live; what I do not have yet is the networking, permissions and QuickSight objects that will let me explore the data quickly. • Set up the secure connection between QuickSight and the EC2-hosted database • Build 3 dashboards as per specifications on QuickSight. Work to be done remotely.

I’d like a private Survival server built on my Aternos account and fully loaded with the mods I enjoy. The focus is a smooth, vehicle-friendly experience for a small group of friends (no more than ten players online at once). Here’s what I need: • Install the exact Vehicle mods I specify (think MrCrayfish’s Vehicle Mod and similar). • Add reliable Optimization mods to keep tick rates healthy within Aternos’ memory limits. • Include a handful of Custom mobs and items mods that I’ll list for you. • Configure everything so the whole pack plays nicely together—no ID conflicts or broken recipes. • Tweak server and mod config files for performance, lag-free chunk loading, and stable TPS. • Test the server, then hand me ...