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Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.
Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.
Here's some projects that our expert Linux Developers made real:
Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!
De 206,204 opiniones, los clientes califican nuestro Linux Developers 4.9 de un total de 5 estrellas.Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.
Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.
Here's some projects that our expert Linux Developers made real:
Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!
De 206,204 opiniones, los clientes califican nuestro Linux Developers 4.9 de un total de 5 estrellas.Trabajo sobre la red de núcleo de mi infraestructura; necesito que quede operativa en doble pila IPv4 / IPv6 y, además, generar un conjunto de ejercicios que sirvan para afianzar conceptos en las capas de red, transporte y aplicación. Lo que espero de ti Quiero que diseñes el direccionamiento, definas y configures los protocolos de enrutamiento (ej. OSPF, BGP o el que mejor encaje), ajustes NAT y cualquier otra función que permita la convivencia fluida de ambas versiones del protocolo. La red corre en un entorno de laboratorio virtual (GNS3 / EVE-NG o similar), así que podrás probar sin afectar producción. Cuando la conectividad esté garantizada, necesito ejercicios prácticos que simulen tráfico real hasta la cap...
TENEMOS UNA INSTALACIÓN DE WORDPRESS CON EL PLUGIN CIVICRM, PERO AL CAMBIAR DE PROVEEDOR A HOSTINGER, NOS DA UN FALLO EL PLUGIN Y NO CONSEGUIMOS QUE FUNCIONE CORRECTAMENTE. TENÉIS QUE REVISARLO, PORQUE AL PARECER HAY QUE ACTIVAR UNAS CONFIGURACIONES EN HOSTINGER PARA QUE ESTE PLUGIN FUNCIONE. NO ACEPTAMOS PRESUPUESTOS MAYORES A 15€ EN PAGO UNICO
Necesito que me instalen desde cero una centralita virtual PBX VoIP basada en Issabel con el objetivo de gestionar el soporte al cliente. Yo facilitaré los datos de acceso al servidor (o la instancia cloud) y las credenciales del proveedor SIP; lo que busco es que la plataforma quede operativa y lista para recibir y distribuir llamadas internas y externas dedicadas para usuarios finales El trabajo debe incluir: • Instalación limpia de la versión estable de Issabel, con Asterisk ya integrado. • Creación de las extensiones iniciales, cola o ring-group para soporte, buzón de voz y, si es necesario, un IVR simple para enrutar llamadas entrantes. • Pruebas de llamada entrante y saliente para confirmar que todo funcione sin eco ni cortes. Panel ...
My dedicated OVH server is back online after a rescue-mode kernel recovery, yet AlmaLinux starts without any trouble while WHM refuses to come up and root SSH access is suddenly rejected. Because several live sites sit on this machine, I need timely, hands-on remediation. Current context • AlmaLinux 8 on bare-metal OVH hardware • cPanel/WHM installed; service currently “failing to start” • I have not reviewed the WHM or system logs since the outage and would prefer you to investigate them yourself • Rescue mode has already been exited; the OS now boots normally What I’m looking for 1. Diagnose why WHM will not start (systemctl, journalctl, cPanel logs). 2. Restore WHM so it is reachable on ports 2086/2087 and all cPanel services (exim, ht...
Need to know what kind of process of something that is only working on some computers, include mine. I will pay this discover.
create Ubuntu vm guest systems and documentation ###Skills English, Bash, esxi, ansible, cisco, windows 2025, ubuntu, linux ###TASKS Task1. Ubuntu24 stepstone Task2. Create LAMP Wordpress and Moodle TEMPLATE Task3. Create Wordpress and Moodle server and backup/restore ###Constraints and hard requirements C1: Client (task owner) owns all rights, now and in the future, for all code and documents developed and part of this work assignment. Developer cannot re-use, reference, mark, or publish the project’s code or documents. C2: There will be provided a client based work environment, this is the target environment. The environment will be RESET at deliver, provided documentation must enable client to rebuild, if not possible for client to rebuild based on provided documentation, it ca...
Project Requirement for AWS Node.js Server Setup & Optimization Description: I have an AWS server where I want to deploy two Node.js projects. Both projects should run smoothly and efficiently without affecting each other, even under high traffic. I need a freelancer who can: Requirements: Server Setup: Properly configure the AWS server for production-level Node.js applications. Ensure all necessary dependencies, security settings, and performance optimizations are in place. Project Deployment & Optimization: Deploy two existing Node.js projects on the server. Optimize the code and server configuration to ensure smooth and fast performance, capable of handling thousands of simultaneous requests. Implement proper process management (like PM2 or similar) to automatically res...
Develop a windows service (Linux is potentially acceptable but additional discussion needed) using Avaya resources and compatible TAPI libraries or Avaya DevLink IP Office API, and similar integration programs that may be available programs to facilitate dialing automation (utilization of one is needed, not support for all, this is a non inclusive list of ones the client believes may be possible to research or use). Client desires the capability for 2-3 different private in house applications to initiate phone calls from physical phone extensions attached to the IP Office Phone system saving its users from directly dialing and enabling additional CRM platform use (the call should indicate as if the user dialed the call from the provided extension, however, if needed to ring the phone/id...
I need CyberPanel installed and fully configured on my AlmaLinux-based VPS. Root access is ready, so you can start the job immediately. Besides the standard installation, please handle basic network items—hostname, static IP binding and the required firewall openings—so the control panel is reachable without manual tweaks on my side. Install and configure Cyberpanel and verify that the installation is correct. Configuring a domain name with DNS on Cyberpanel and OVH: Domain Name I want this to work. Here is an example of the configuration: .............................. Hostname: IP ns1: IP ns2: Add a domain name for testing. TEST AND VERIFY THAT EVERYTHING WORKS. ...................... OVH DOMAIN CONFIGURATION VIA AnyDesk PLEASE READ CAREFULLY: I WANT A COMPLETE AN...
I have already upload a MERN STACK web app on vps hoistinger. frontend is working but when i hit frontend register page it is not working. I you are comfortable i can pay 300 per hour. [Removed by Freelancer.com Admin]
Cerco uno/a sviluppatore/trice esperto/a di Moodle per una migrazione tecnica precisa, NON per rifare il sito da zero. PREMESSA: tutto il materiale è di mia proprietà intellettuale, IL DOMINIO è mio. Situazione attuale – Piattaforma Moodle ospitata su server Aruba. – Installazione customizzata, con: • corsi strutturati in 60 moduli “OPEN” contenenti video allenamenti, • utenti con date di scadenza diverse per ogni modulo, • logiche di blocco/sblocco dei contenuti che non voglio perdere. – Circa 200–300 utenti attivi con abbonamenti ricorrenti. Al momento NON ho ancora acquistato il nuovo server: vorrei farlo sulla base delle tue indicazioni tecniche (requisiti minimi, tipo di hosting, ecc.). Obiettivo del lav...
I already have UnrealIRCd up and running and KiwiIRC installed so visitors can reach the network through a browser. The client loads, but the connection settings still need fine-tuning and a little polishing so users join the network smoothly every time. Your main objective is to complete the server-side configuration inside (and any related reverse-proxy or websocket tweaks) with a focus on the connection settings: correct host and port mapping, SSL/TLS verification, automatic network join, and a quick smoke-test to prove it all works. Once the network connects flawlessly we can, time permitting, look at light cosmetic changes—colours, logo, maybe a simple theme—though getting the connection rock-solid is my immediate priority. Deliverables • Updated (and any supplem...
We are looking for an experienced Nagios/Nagios XI specialist to help us design and deploy a complete monitoring solution. Our environment includes a variety of IP-enabled devices—some support SNMP, others require alternative monitoring methods (NRPE, SSH, WMI, API checks, etc.). Your role will be to fully configure Nagios XI, integrate all devices, and create reusable monitoring templates for future expansion. ________________________________________ Scope of Work 1. Nagios XI Installation & Configuration • Install and configure Nagios XI on our server (Linux environment). • Optimize performance for scalability and best practices. • Configure users, permissions, host groups, notification settings, and dashboards. 2. Device Onboarding & Monitoring Setup • ...
I have several upcoming roll-outs that centre on Palo Alto technologies and I need an engineer who can take a deployment from blank rack space to a fully documented, production-ready environment. The core of the job is Palo Alto firewall setup and configuration, site-to-site and remote-access VPN creation, plus ongoing threat management and response tuning. Most of the current estate is mixed—Cisco switches and routers, Fortinet appliances at a few branches, with Trend Micro on the endpoint side—so any cross-vendor familiarity you possess will be welcome. That said, deep, hands-on Palo Alto knowledge is non-negotiable. I’m based in Hyderabad and would prefer someone local (or elsewhere in India) who can be on-site when needed, especially for the initial rack/stack, ca...
I’m moving my entire Centova Cast setup to a fresh server and want it done right the first time. The job starts with a clean, end-to-end server migration—databases, configuration files, playlists, listener stats, everything—so the new machine behaves exactly like the old one from the moment DNS flips. Once it’s running, I need you to handle the full post-migration tune-up: optimize Centova Cast, tweak the streaming stack (Shoutcast or Icecast), adjust firewall rules, and verify SSL, auto-DJ and scheduled tasks. The goal is a lean, stable environment that handles peak listener loads without buffering. Finally, teach me what you did at an advanced level. I’d like a live screenshare or recorded walkthrough that covers each command, config change and performance...
Thunderbird refuses to pass the verification step whenever I try to add the mailbox that sits behind my Cloudflare-managed domain. I’m setting the account up as IMAP, yet the test still fails and the client will not connect. I’d like you to: • Review the current Cloudflare records that relate to mail (MX, SPF, DKIM, DMARC if relevant) and confirm they align with what Thunderbird expects for an IMAP setup. • Walk me through (or document) the exact server names, ports, and security settings I should enter in Thunderbird so the account finally verifies. • Stay with me until a fresh Thunderbird profile can both send and receive messages without errors. If you’ve solved this exact combination of Cloudflare + Thunderbird before and can get me running quick...
I need a desktop application that runs natively on Linux and lets users open, access, and manage a “money-growing” wallet without ever presenting identity documents. The only gatekeeper should be biometric authentication: Face ID or Touch ID, depending on the hardware the user has available. At launch the flow must feel effortless—open the app, present a face or fingerprint, and land on a dashboard showing current balance, growth rate, and a simple button to add or withdraw funds. Under the hood you are free to pick the most reliable open-source libraries (for example OpenCV or libfprint) as long as the recognition step is fast and the data never leaves the user’s machine unencrypted. Because I’m working on a tight timeline, I’m hoping to see tangible ...
I need a desktop application that runs natively on Linux and lets users open, access, and manage a “money-growing” wallet without ever presenting identity documents. The only gatekeeper should be biometric authentication: Face ID or Touch ID, depending on the hardware the user has available. At launch the flow must feel effortless—open the app, present a face or fingerprint, and land on a dashboard showing current balance, growth rate, and a simple button to add or withdraw funds. Under the hood you are free to pick the most reliable open-source libraries (for example OpenCV or libfprint) as long as the recognition step is fast and the data never leaves the user’s machine unencrypted. Because I’m working on a tight timeline, I’m hoping to see tangible ...
I’m building out an email-marketing tool that relies on machine-learning to drive its core features. The heart of the project is, quite simply, “email marketing tools” built in Python, so every line of code you write should keep that use-case front and center. Here’s what I need from you: • A clean, well-documented Python pipeline that ingests raw email-campaign data, pre-processes it, then trains and evaluates a model. • The finished model packaged so it can be dropped into my current codebase with minimal refactoring—think scikit-learn, pandas, NumPy and any lightweight helper libraries you feel are essential. • A short README explaining how to reproduce your results and extend the model for future campaigns. Acceptance criteria 1. Ru...
My Elastic Stack is already running on two separate VPSs—one hosts Elasticsearch, the other runs Kibana with Fleet behind a custom domain. Connectivity between the servers is confirmed, but Fleet itself still needs to be fully configured for security monitoring. Here’s what I need from you: • Activate and fine-tune Fleet inside the Kibana UI so security monitoring works out of the box. • Make any necessary changes on the Kibana VPS (system settings, ``, endpoint policies, agent policies, etc.) to support that goal. • Ensure I can enroll agents smoothly and start seeing security-related data in the Security app. User roles and external integrations are already handled, so no work is required there. Once Fleet is operational and a test agent reports securi...
Hello, I'm looking for someone capable of configuring Cyberpanel and verifying that the installation is done correctly. Configuring a domain name with DNS on Cyberpanel and OVH: Domain name I want it to work, here's an example: .............................. hostname: ns1 IP: ns2 IP: Add a domain name for testing. TEST AND VERIFY THAT EVERYTHING WORKS. ..................... OVH DOMAIN CONFIGURATION VIA AnyDesk PLEASE READ CAREFULLY, I WANT A COMPLETE AND FUNCTIONAL CONFIGURATION
I need a desktop application that runs natively on Linux and lets users open, access, and manage a “money-growing” wallet without ever presenting identity documents. The only gatekeeper should be biometric authentication: Face ID or Touch ID, depending on the hardware the user has available. At launch the flow must feel effortless—open the app, present a face or fingerprint, and land on a dashboard showing current balance, growth rate, and a simple button to add or withdraw funds. Under the hood you are free to pick the most reliable open-source libraries (for example OpenCV or libfprint) as long as the recognition step is fast and the data never leaves the user’s machine unencrypted. Because I’m working on a tight timeline, I’m hoping to see tangible ...
We are looking for an experienced VoIP engineer to fix and finalize a SIP integration between FreePBX and ElevenLabs AI, with Twilio used for external PSTN calls. Please do not apply unless you have deep, hands-on experience with Asterisk 20, FreePBX 17, and PJSIP. Objectives (Must Be Achieved) Scenario 1 – Internal Test • Extension 1001 calls ElevenLabs AI via SIP • ElevenLabs processes the call • ElevenLabs transfers the call back to extension 1002 Scenario 2 – External Call • Call arrives from a Twilio number • Routed to FreePBX • Forwarded to ElevenLabs AI • AI transfers the call to a live PBX extension Both scenarios must be fully working and tested Current Environment • PBX: FreePBX 17 • Asterisk: 20.x • OS: Ubuntu 22.04...
I need a reliable script that can search LinkedIn automatically and pull a clean CSV containing each profile’s full name, mobile number, company email address and current job title. The search itself must be driven by three criteria—industry type, location and company size—rather than me pasting individual profile URLs. Here’s the flow I have in mind: I feed the tool those criteria, it logs into my LinkedIn (or Sales Navigator) session, runs the search, paginates through the results, visits each profile and extracts the four data points. Rate-limits, random delays and proxy rotation are critical so the account stays safe. Headless browsing with Selenium or Playwright, plus a lightweight database or in-memory queue to avoid duplicates, would be ideal, but I’m ...
Job Title: Urgent: WordPress Server Admin to Fix High CPU Usage for 59 WooCommerce Sites (Hostinger/LiteSpeed) Project Description: We run a digital agency managing 59 active WooCommerce stores hosted on a Hostinger Agency Professional plan. We are currently facing critical server instability, with CPU usage spiking over 2000% and RAM exhaustion, causing downtime (Error 500/503). We have temporarily mitigated the issue by disabling plugins and blocking XML-RPC, but we need a Root Cause Analysis and a permanent infrastructure solution to handle the load efficiently. Scope of Work: Deep Analysis: Review server access logs and error logs to identify exactly which sites, plugins, or bots are causing the resource spikes. Security Hardening: Implement Cloudflare (WAF) for all sites to offlo...
I want my Starlink connection to act as a secure gateway so remote users—well over fifty at peak—can tunnel through it from both computers and mobile devices. Each person will log in with a simple username-and-password combo that I provide, then browse the internet as if they were sitting behind my antenna. I’m open to any standards-based VPN stack that does the job—OpenVPN, WireGuard or something comparable—as long as it remains free of extra licensing costs and is straightforward for non-technical users to install. The key points are: • Reliability with 50+ simultaneous sessions • Smooth connectivity for Windows, macOS, iOS and Android • A clean way around Starlink’s CG-NAT (DDNS, port-forward relays, or another proven method) Wha...
Hello, My name is Víctor and I am looking for a reliable freelancer who can assist me on an ongoing technical project. I want to explain clearly the context, the technologies, and what I need, so you can evaluate if the collaboration fits you. About the Project I’m currently working on a large and complex data-engineering / backend automation project involving: Technologies involved Google Cloud Python testing. Python (ETLs, tests, refactoring, data pipelines) CI/CD tools: Jenkins, Bitbucket, Artifactory Cloud environments: Google Cloud Platform, Azure Containers and dependencies SQL / PL-SQL Data validation and business logic implementation The project has multiple ETLs and dashboards, and some modules were already developed by previous freelancers. I need help valid...
I have a cloud server that needs to be production-ready so our developers can move the application currently running on a staging box. What I need from you is straight-forward: • Configure the new Hetzner instance for app deployment. • Point our GoDaddy-hosted domain to the server (DNS, A/AAAA records, any necessary propagation checks). • Install and test an SSL certificate. • Create restricted credentials (SSH/SFTP or whatever method you recommend) so my dev team has just enough access to migrate code and assets without touching the core server setup. Once everything is wired up I’ll verify that: 1. The domain resolves to the new server over HTTPS. 2. The SSL certificate is valid and auto-renewal (if applicable) is in place. 3. The limited-scope acc...
I’m building a real-time, city-wide surveillance platform that watches thousands of ATMs for tampering, unauthorised access, or outright theft. Each terminal will be fitted with an ESP32 board wired to motion, vibration and camera sensors. As soon as any of those sensors trigger, the unit must encrypt the event data, push it to the cloud and let my security team know immediately by SMS, e-mail, mobile push and—when a camera is present—live video. On the cloud side I need a horizontally-scalable backend (Node.js preferred) that can ingest traffic from 10,000+ ESP32s with minimal latency, route events through a rules engine and record everything for audit. A dashboard should stream the events live, plot them on a map and expose a searchable incident log. Key acceptance c...
I'm seeking an experienced developer to resolve an APK installation issue. The app is already built, but I'm encountering problems while trying to download the APK. Requirements: - Expertise in APK, Node.js, and Gradle - Experience with Powershell - Ability to troubleshoot and fix installation issues Ideal Skills: - Mobile app development - Familiarity with APK distribution and installation - Problem-solving skills Please provide a brief overview of your experience and approach to resolving this issue. i need someone to fix this issue that i keep going around circles with ,
I have a fresh Debian 12 machine ready and need the entire website and its FastAPI-based backend moved over with zero functional changes. Your job is to replicate the current environment, migrate all data, and prove the site works exactly as before. Server stack to be installed • Python 3.11 running FastAPI served by Uvicorn • Async SQLAlchemy with PostgreSQL using asyncpg / psycopg2 • Celery backed by Redis • defusedxml for our IDS/OTA XML processing • Docker & Docker-Compose orchestration • Nginx as the reverse proxy • Front-end layer next: "15.5.7" Migration scope • Database data, application files, and every configuration file from the old host • Container images or native services recreated on the new box ...
I need a set of clean, reusable Terraform modules that will let me spin up and tear down AWS infrastructure reliably. The emphasis is on true infrastructure-as-code: version-controlled, idempotent, and easy to extend as the environment grows. At a high level we will start by mapping the services I actually need—compute, storage, networking and any supporting IAM policies—then translate that into Terraform code with sensible defaults and variables. Remote state, locking, and a straightforward README are part of the brief so future team members can pick it up without fuss. Deliverables • Terraform *.tf files organised by module • A variables file with clear descriptions and default values • README explaining setup, back-end configuration, and typical appl...
I need an experienced engineer who can sit with me in Pune MH India and provide hands-on, offline technical support for daily data engineering tasks. The focus is strictly on Python and PySpark: reviewing code, untangling bugs, optimising Spark jobs, and guiding me through best practices as we build and maintain data-processing pipelines. This is not a remote, on-call role; I’m looking for someone who can be physically present in Kharadi/Viman Nagar/Magarpatta Area—pair programming, white-boarding solutions, and helping me push features all the way to a clean commit. If you have solid production experience with Python, strong command of PySpark’s RDD/DataFrame APIs, and the confidence to troubleshoot performance issues on the spot, let’s talk about a regular schedu...
My Squarespace Email Campaigns have sprung a leak— far too many messages are landing in spam instead of the inbox or at least Gmail’s Promotions tab. I need an experienced email-ops specialist to track down every source of friction, clean the data, and get my deliverability back on course. Here is what I expect from the engagement: Deliverables • List hygiene: scrub every address that never opened an email, hasn’t engaged in six months, or has bounced. • Automation sweep: review all key flows for spam-prone subject lines, risky language, and excessive links/images; recommend copy or layout tweaks. • Reputation check: run blacklist look-ups and analyse deliverability signals, flagging anything that might require coordination with my ESP in the shared...
Project Description We are looking for an experienced DevOps Engineer / Cloud Engineer with strong expertise in AWS, GitLab CI/CD, Kubernetes (EKS), and cloud infrastructure best practices. The project involves migrating services within AWS, improving existing GitLab pipelines, and implementing enhancements to our current cloud architecture. Scope of Work 1. AWS-to-AWS Migration (Primary Task) We need to migrate our existing AWS environment to a new AWS account/region with minimal downtime. This includes: Migrating EKS clusters, microservices, and workloads. Migrating databases, IAM roles/policies, VPC components, and supporting services. Ensuring GitLab CI/CD pipelines remain fully functional post-migration. Validating network configuration, DNS updates, and service integrations. I...
I need a developer who can take full ownership of building an always-on crypto trading bot that works with Binance, Bybit and KuCoin. The core of the project is an AI-driven learning strategy—think reinforcement learning that refines entries, exits and position sizing with every trade it makes. I’m not prescribing a particular framework; whether you prefer TensorFlow, PyTorch, scikit-learn or another library, I’m happy to go with what lets you move fastest while keeping the code maintainable. Key capabilities I expect • 24/7 automated trading with low-latency order execution • Built-in risk controls: configurable stop-loss, position-sizing limits and exchange-specific safeguards • A clean, standard graphical interface that lets me start/stop strategi...
I already have a clean server ready and need an experienced systems admin to turn it into a production-ready hosting stack. The task is straightforward: • Install cPanel/WHM, WHMCS, and CloudLinux on my existing machine • Use the latest stable releases for both WHMCS and CloudLinux • Complete the basic post-install configuration so the three products work together seamlessly (license activation, LVE/CageFS enablement, PHP Selector tied into WHM, cron jobs, etc.) • Hand back root credentials with a quick hand-off document outlining what was done and any next steps I should know about Everything should come up clean with no errors in the WHMCS health check, and WHM must recognise the CloudLinux kernel. If you spot any obvious security tweaks or performance flags w...
Our WordPress website is experiencing significant performance issues including slow load times and high resource consumption. We already have caching infrastructure in place (Seraphinite), which has only partially resolved the issues. We need a backend specialist to identify bottlenecks, optimize server-side processes and database operations, implement fixes, and ensure stable operation post-optimization. Required Deliverables 1. Performance Assessment Report • Identification of all backend bottlenecks and performance issues • Resource utilization analysis (CPU, memory, database) • Root cause analysis with supporting data/metrics • Prioritized list of optimization opportunities 2. Optimization Implementation • Database query optimization • WordPress an...
Estou com uma rede corporativa de porte pequeno–médio (entre 11 e 50 dispositivos) atrás de um firewall pfSense e preciso instalar um filtro DNS para controlar o acesso dos funcionários a determinados sites. Minha preferência é usar o NxFilter, pois pretendo bloquear especificamente redes sociais em todo o ambiente sem prejudicar o restante da navegação. O trabalho envolve: • Instalar o NxFilter (ou outra solução aceita nativamente pelo pfSense, caso se prove mais adequada) em VM ou hardware já disponível • Redirecionar todo o tráfego DNS pelo pfSense para o filtro, garantindo que nenhum dispositivo faça bypass • Configurar políticas que bloqueiem redes sociais e perm...
I’m looking for a partner who can supply and configure reliable SIP trunks for both France and Germany on our self-hosted 3CX system. The trunks must support full two-way traffic—high-volume outbound and inbound calls, regularly exceeding 200 calls per day—without quality or compliance issues. Key requirements • Direct interop with 3CX, including correct SIP registration, codec negotiation, and fail-over configuration. • French and German geographic DIDs with proper caller-ID presentation for each market. • G.711 a/u and G.729 support, plus TLS/SRTP options if available. • Detailed documentation of all credentials, SIP settings, and any firewall rules that need to be opened on our side. • Post-deployment test plan confirming call qualit...
I need a skilled developer to resolve server errors on my website. Key Requirements: - Experience with backend development and server management - Ability to diagnose and fix server errors such as 404, 500, or 503 - Familiarity with various server technologies (Apache, Nginx, Microsoft IIS)
I need a clean, production-ready deployment of PlugNMeet on a fresh Ubuntu server. The machine is already provisioned; what’s missing is the full install, security hardening, and a quick validation that WebRTC conferencing works from the open internet. Key points you should know before starting: • Operating system: Linux, specifically Ubuntu • HTTPS: I’d like to use the Certbot routine bundled with PlugNMeet so that the dashboard and all media traffic run over SSL. What I expect when you’re done: 1. PlugNMeet installed and running as a system service. 2. Valid Let’s Encrypt certificate obtained through the included Certbot flow and auto-renewal scheduled. 3. Any required firewall rules or NAT/STUN settings in place so that video and audio conne...
Project Overview I am looking for an experienced email infrastructure freelancer to fully set up Acelle Mail on my server and connect it to Amazon SES for reliable email delivery. This includes installation, configuration, domain verification, deliverability setup (SPF/DKIM/DMARC), bounce/complaint handling, and building a complete 10-email monthly automation sequence using templates you create from my submitted content. I want this project handled end-to-end. Scope of Work 1. Acelle Mail Installation Install the latest version of Acelle Mail on my hosting or VPS Configure PHP, MySQL, cron jobs, file permissions, HTTPS/SSL (Let’s Encrypt is fine) Secure the installation and admin panel Ensure Acelle Mail loads correctly and is fully functional 2. Amazon SES Setup Create or ...
I need a skilled developer to resolve server errors on my website. Key Requirements: - Experience with backend development and server management - Ability to diagnose and fix server errors such as 404, 500, or 503 - Familiarity with various server technologies (Apache, Nginx, Microsoft IIS)
I need a seasoned DevOps professional to turn our bare-metal, on-prem environment into a fully automated, observable and secure platform built on Red Hat Linux. Scope of work Server setup and configuration come first: clean installation, networking, hardening, and repeatable provisioning—ideally through Ansible or an equivalent tool. After that, I want a robust CI/CD pipeline that compiles, tests and deploys our internal applications automatically on each commit. Finally, the system must be wrapped in comprehensive monitoring and logging so we can see issues before users do. Deliverables • Infrastructure-as-Code that recreates every Red Hat server exactly as configured • Git-driven pipeline with automated testing, deployment and rollback • Centralised monitor...
I have a fresh VPS running cPanel, and my domain and basic hosting plan are already in place. What I need now is a complete, production-ready installation and configuration of both WHM and WHMCS so I can begin selling hosting packages immediately. The job covers installing the latest stable releases, linking WHMCS to WHM, creating nameservers, setting up default reseller and shared-hosting packages, enabling automatic provisioning, and hardening the server for everyday use (SSL, basic security tweaks, and daily backups). Please connect WHMCS with my payment gateway, configure email piping so tickets flow correctly, and brand the client area with my logo and colours. Deliverables I will sign off on: • WHM and WHMCS fully installed, licensed, and updated • At least three ready-...
fix Email Deliverability for 3 Domains (SPF, DKIM, DMARC, PTR, Blacklist Removal, Server Security) Title: Email Deliverability Expert Needed – Fix SPF/DKIM/DMARC, Blacklist Removal, Server Security (3 Domains) Description: I need an experienced email deliverability + DNS + server security expert to fully repair and optimize email sending for three domains: These domains need to be configured properly for inbox deliverability with Gmail, Outlook, Yahoo, and corporate email systems. Recently, one of my server IPs was blacklisted and marked as having an open SOCKS proxy, so I also need the server cleaned and secured. What Needs to Be Fixed 1. Email Authentication Each domain must have: Correct SPF Working DKIM (not currently enabled) Strong DMARC (quarantine or reject) ...
My personal blog—along with a few static pages that sit beside it on the same shared host—has been hit by a serious breach. I am seeing clear signs of unauthorized file access, unexpected file modifications, and outright malicious injections sprinkled throughout multiple directories. I need someone who can jump in immediately, confirm the entry points, eradicate every backdoor, and harden the stack so this does not happen again. What I already know • The environment is a shared Linux hosting account with both static HTML and dynamic pages. • Likely culprits include LFI/RFI, overly permissive file permissions, or even a fully-compromised host account. • The indicators of compromise mentioned above are active and ongoing; new rogue files appear within minute...
All the code for both the frontend and backend of my MVP is finished. It is a app written in TypeScript, styled with Tailwind CSS, and powered by API Routes, Prisma, and PostgreSQL. I now need an expert to take this codebase, deploy it on a Linux-based environment, and make sure the application runs smoothly in production. Key deliverables • Provision and configure a Linux server (or guide me in connecting an existing one) • Set up PostgreSQL, run Prisma migrations, and connect the database securely through environment variables • Build and serve the application for production, ensuring SSR, API routes, and static assets work as intended • Hand over concise documentation (bash commands, config files, and any service/unit files) so I can redeploy or scale late...
Title: Systems Programming Engineer (C, OS Internals) – Freelance / Project-Based Description: We are working on a research-focused operating system project and are looking for strong C programmers with experience in low-level systems work. This is a hands-on role involving kernel-style programming, system call mechanisms, scheduling logic, synchronization primitives, and performance instrumentation. You will work on small, self-contained modules inside a teaching OS (similar to xv6-style environments). Each module is designed so that it can be implemented independently without requiring knowledge of the entire system. This position is ideal for engineers who enjoy: OS internals Concurrency Signals, threads, scheduling Kernel-style C code Clean design and correctness under co...
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