Administración de sistemas Jobs

Necesito que un especialista configure mi router Mikrotik para ofrecer acceso a internet en una red 100 % inalámbrica mediante fichas impresas. Alcance: • Crear y activar un portal Hotspot que me permita tener control total de usuarios: límites individuales de velocidad, número de dispositivos y posibilidad de deshabilitar o renovar cuentas en cualquier momento. • Diseñar la plantilla de voucher e integrar la generación automática de fichas impresas (username, contraseña, tiempo o datos, código de barras/QR si es conveniente). • Ajustar colas, perfiles y reglas de firewall para que cada ficha respete el ancho de banda asignado y evitar que los usuarios compartan la conexión. • Redactar una guía...

We are looking for an experienced digital marketing and SEO professional to improve our website performance, optimize social media presence, and position our brand at the top of local market searches on Google and AI-powered search platforms.

CXUS Consulting is seeking an experienced SAP Basis consultant to set up a Technical Development & Testing (TDD) system of SAP S/4HANA 2025 on Google Cloud Platform (GCP). This is a three-client landscape (DEV/TST/PRD) optimized for embedded PP/DS functionality Scope of Work: System Setup & Installation Provision GCP VM and storage (consultant to recommend sizing) Install OS, HANA 2.0 DB, and SAP S/4HANA 2025 (latest support pack) Apply all pre-requisite and mandatory OSS notes Client Setup Three clients: DEV (100), TST (200), PRD (400) Activate PP/DS embedded with relevant Fiori apps Configure transport routes (DEV → TST → PRD) Integration Readiness CIF setup and RFC destinations configured Data Load Load pre-configured master and transactional data for PP/DS and ...

I need an expert to configure FreeRADIUS to act as a proxy. Requirements: - Support for PAP/CHAP authentication protocols. - Proxy to an LDAP backend for authentication. - Handle username and password user information. Ideal Skills and Experience: - Proficient in FreeRADIUS configuration. - Experience with LDAP integration. - Knowledge of PAP/CHAP protocols.

My cPanel-hosted domain is being blocked by Gmail with a 550-5.7.26 “authentication required” bounce. I have full DNS-zone access and need an expert to diagnose and correct the records so every check passes. Here are the exact protocols that must be fixed: • SPF • DKIM • DMARC Scope of work • Audit current DNS entries in cPanel/WHM and at the registrar. • Create or adjust the TXT/CNAME records for the items above, ensuring proper alignment. • Propagate changes and run live tests (e.g., Google Postmaster Tools, MXToolbox) until Gmail accepts the messages. • Provide a short hand-over note explaining what was changed and why. Acceptance criteria A test email from my domain must reach a Gmail inbox without errors, showing &ldqu...

Migrate CRM from Shared Hosting To VPS I’m ready to leave the limitations of shared hosting and run my CRM on a fresh VPS. All files, databases, custom modules, and SSL certificates need to make the trip with zero data loss and the briefest possible downtime. I will give you full access to both environments as well as any existing backup utilities. Here’s what success looks like to me: * a verified backup of the current CRM instance * a clean import on the VPS with correct database connections, file permissions, and SSL in place * basic security hardening (firewall rules, fail2ban or equivalent) * DNS or A-record switch once the new instance passes testing * a short walkthrough or written notes so I can repeat routine maintenance You should be comfortable with cPan...

I had NordVPN running smoothly on my new Ubuntu laptop for the first few days, but after tweaking some network settings on the machine the VPN refuses to reconnect. I would like someone to: • diagnose what I changed in Ubuntu’s network stack that is blocking NordVPN, • put those settings back into a clean, working state (command-line or NetworkManager), • verify that my home router is forwarding traffic or configured correctly so the VPN handshake is not being blocked, and • give me a short walkthrough so I understand how to avoid breaking things again. The job covers both the laptop and the router. We can work over a screen-share or SSH, whichever you prefer, as long as you explain each step. Experience with Ubuntu 22.04, NordVPN CLI/App, iptables or ufw,...

I am rebuilding my virtual-infrastructure from the ground up and want an expert hand beside me while I do it. The core of the job is a Proxmox VE cluster that must run natively on IPv6 and use Ceph for shared storage. In parallel, three OPNsense firewalls need an in-depth configuration: one sits at the edge, the other two protect separate internal networks. Once the base is stable I also want help installing and tuning Univention Corporate Server and the Inuvika OVD platform inside the cluster, with proper DNS and certificate management throughout. Scope of work • Configure the Proxmox cluster, bring up IPv6 networking on all nodes, and integrate a Ceph pool that Proxmox can use for VM/CT storage. • Hard-en and document the OPNsense setup (rules, VLANs, routing, dual-stac...

Project Title AWS Architecture Review & Cost Optimisation Recommendations Project Description I am looking for an experienced AWS architecture expert to review my current AWS setup and provide recommendations on how to optimise the infrastructure and reduce costs. This project is review and advisory only. No implementation is required. Scope of Work The expert will: • Review the current AWS architecture and services in use • Identify areas where costs can be reduced • Identify any inefficient resource usage or misconfiguration • Suggest alternative architecture or services that may improve cost efficiency • Recommend best practices for ongoing AWS cost optimisation Deliverable A written report including: • Overview of current architecture (based...

I need an experienced infrastructure engineer to help me move my Fintech application off its current host and onto a server stack that is both noticeably faster and cost-efficient. My priorities are low-latency transaction handling, high uptime, and a predictable monthly bill. I am open to any major cloud vendor—LINUX, AWS, Google Cloud, Azure, or an equally robust alternative—provided the final choice can give me the best mix of performance and price. Here’s what I expect: • A short cost-vs-performance comparison of the leading options, with clear reasoning for the recommended platform. • A detailed migration plan that avoids downtime for end users. • Full execution of the migration, including configuration of security groups, autoscaling, backups, ...

Extensive DevOps Experience: Having 2 years of experience in AWS EC2, AWS S3, AWS IAM, RDS, Kubernetes, Docker, Terraform, and Ansible focused on building scalable and reliable infrastructures. Production Support Experience: Having 3 years of experience as a production support engineer on software applications. Automation & Efficiency: Skilled in automating deployment processes with Ansible and optimizing cloud setups for performance and cost savings. AWS: Cloud service platforms to deploy, manage, and scale infrastructure and services. CI/CD & Security Proficiency: Strong understanding of CI/CD pipelines and cloud security, with a proven record of reducing costs and ensuring successful project rollouts. Continuous Development & Innovation: Committed to learning new te...

We need a new junior-level developer with good experience in wireshark, GNS3 and other network installations We need work at low budget and for long term

The process requires significant technical expertise in server management, Java, database administration, and cloud services. Project Deliverables Server Deployment: Hybrid database approach Distributed Cluster We must separate: Edge Layer (Ingress + WebSocket) Application Layer (Spring Boot Core) Stateful Data Layer (Cassandra, PostgreSQL, Redis) Media + Search + Observability WebRTC Stack • Infrastructure: Are you planning to deploy on a our server • Version: need the latest official Signal Server (Java-based) • Customization : rebrand the app or simply run a private instance Configuration & Customization: Set up config .yml for production Optional branding or private instance configuration ________________________________________ Core System Requirements The offi...

Key Responsibilities: • Provide day-to-day onsite IT support for Desktops/Laptop, and peripherals. • Troubleshoot OS-related (Windows 10/11) and basic networking. • Handle software installation, configuration, patching, and updates. • Provide first-level support for MS Office 365 (Outlook, Teams, SharePoint Online). • Support users with Active Directory (AD) activities. • Diagnose HW problems and escalate to vendor. • Basic support for mobile devices, VC/AV equipment, and network port activation (I/O to end-point). • Coordinate with remote teams or OEMs for specialized support cases. This is onsite role for Hyderabad ________________________________________ Technical Skills Required: • Experience in Windows 10/11, desktop/laptop hardware troubl...

After uploading a fresh set of files and reorganising the entire site structure on my Amazon Lightsail instance, every URL—including the homepage—now returns a 404. Nothing else on the server was changed, so I suspect the issue sits with the web-server configuration, .htaccess rules, or the Lightsail networking/DNS settings. Here’s what I need: • Diagnose why all pages are throwing 404s. • Correct the root cause—whether that’s a VirtualHost mis-match, missing index file, wrong document root, or rewrite rule conflict. • Verify the fix by showing the site loads normally over HTTP / HTTPS. • Send me a concise summary of what you changed so I can track it for future deployments. You’ll have full SSH access to the Lightsail instanc...

Project Title: Full Issabel 5 PBX Deployment: Installation, Trunks & Extensions Project Overview I am seeking a VoIP specialist to perform a complete installation of Issabel 5 on an AlmaLinux 8 cloud instance. Beyond the base installation, the freelancer will configure the initial telephony architecture, including SIP trunks for external connectivity and internal extensions for users. Detailed Scope of Work 1. Server Installation & Hardening Perform a clean installation of Issabel 5 on AlmaLinux 8 using the official net-install script. Configure Fail2ban and firewall rules to block unauthorized SIP and SSH attempts. Set secure passwords for the Linux root, MariaDB, and Issabel web admin. 2. SIP Trunk Configuration Connect the PBX to my chosen VoIP provider using a SIP trunk....

I need an expert to help recover database files from AWS EC2. Skills and experience needed: - Strong background in AWS, especially EC2 - Expertise in data recovery processes and tools - Experience with various database types on EC2 - Problem-solving skills and attention to detail - Ability to work within budget and timeline Please provide relevant experience and approach in your bids.

I have just opened a brand-new Leaseweb account and want to make sure everything is configured correctly before I begin hosting production workloads. At this stage nothing has been provisioned, so I need someone who knows their way around the Leaseweb control panel to walk me through the complete setup, spin up the first server, apply sensible security hardening, and leave me with clear notes on what was done and why. Typical touch-points will include picking the right plan, deploying an instance, setting up user access, SSH / RDP configuration, firewall rules, monitoring basics, and any tweaks you consider best practice for performance and reliability. I’m open to either Windows or Linux images, so your recommendation here will be welcome. The job is primarily about the initial se...

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 a skilled professional to install Windows Server 2025 and configure RDP and VPN. The VPN should allow multiple user connections. Requirements: - Install Windows Server 2025 - Configure Remote Desktop Protocol (RDP) - Set up VPN for multiple user connections Ideal Skills & Experience: - Extensive experience with Windows Server installations, especially 2025 - Strong knowledge of RDP and VPN configurations - Networking expertise to ensure secure and efficient multiple user connections

I need Ubuntu Desktop installed on my HP desktop. The installation should be smooth, especially considering my graphics card. Requirements: - Install Ubuntu Desktop - Handle graphics card setup during installation Ideal Skills and Experience: - Experience with Ubuntu installations - Familiarity with HP desktops and various graphics cards - Troubleshooting skills for any installation issues Please ensure the OS is ready to use post-installation.

We are looking for a freelance Network Engineer to provide onsite support at a client location for a one-day network activity. You will work as the onsite engineer while a remote team provides guidance and configuration support. Responsibilities Rack, cable, and power on network equipment (switches, routers, firewalls) Patch network cables as per provided diagrams Connect console or management cables for remote access Perform basic network connectivity checks Assist the remote team during troubleshooting or validation Provide a brief end-of-day handover and status update Deliverables Network equipment installed, powered on, and accessible to the remote team Confirmation of basic network connectivity Short summary of work completed and any issues observed Requirements Hands-on ...

Anyone that can get approval for AWS SMTP

I need a Windows specialist to help me regain full access to a folder of images and other files that sits on an external drive. After restricting permissions on Windows 10 for privacy, I upgraded to Windows 11, ran into performance issues, then rolled back to Windows 10 through a clean install. Since that reinstall, any attempt to open files in this particular folder throws a “You don’t have permission” error—even after I thought I had fixed similar wallpaper-related permission problems. The task is straightforward: reset or repair the file and folder permissions on that external drive so I can read, edit, and move every item inside without errors. All work will be done over a remote session; once you finish, I’ll verify the files open normally and the permis...

I have an application running on DigitalOcean App Platform connected to a GitLab repository. The app is currently running fine using a previously deployed build. The repository and main branch exist and contain the latest code. The issue is that DigitalOcean is no longer able to deploy new code from the GitLab repository. When trying to update the source configuration, no options are available to select the repository. Required: - Diagnose and fix the GitLab integration/authentication issue with DigitalOcean App Platform - Reconnect the GitLab repository so new deployments work - Ensure autodeploy on push is working correctly - Verify proper permissions between GitLab and DigitalOcean Skills needed: DevOps, GitLab, DigitalOcean, CI/CD, Docker, Linux, System Administration

Am nevoie de un specialist care să preia întreținerea continuă a serverului meu web bazat pe Apache. Platforma rulează deja în producție, iar scopul meu este să-i mențin disponibilitatea ridicată și să previn orice incident de securitate sau performanță. Ce am de făcut în mod regulat: • Actualizări de software – aplicate la sistemul de operare, la pachetele Apache și la extensii, fără a afecta uptime-ul. • Monitorizare și optimizare – setarea unei soluții de monitorizare (ex. Prometheus, Zabbix sau altă preferință a ta), interpretarea alertelor și ajustarea configurațiilor pentru timp de răspuns mic și consum redus de resurse. • Securizare și backup – configurarea firewall-ului, reguli mod_security, scanări periodice după malware, plu...

A Direct Sales / Sales Coordinator. We've been established 17 years. We are in the early stages of rebuilding, expanding the company. After contracting due to the pandemic. We have been running stsbly. We are now looking to build a team. I've been running most aspects of the company over the last couple of years, but due to expansion, the workload is growing. I'm an expert in direct sales, sales trainer, team builder, motivator, that's pretty much what I do. And marketing as well. I've developed some unique concepts, which I mentor self employed ambitious people. I train mindset and work ethic and develop communication skills and general business skills. I'm looking for somebody to join the team, to work remotely. bit of a split role, so somebody ...

We are currently looking for an experienced Freelance Network & OT Cybersecurity Engineer (10+ years of experience) to support a network architecture redesign and cybersecurity implementation for an industrial environment. Scope of Work 1. Network Architecture The current infrastructure consists of a flat network. We are looking to redesign the architecture into a structured and segmented network. The proposed design should include: • A hierarchical network architecture (Core / Distribution / Access layers) per site • Segmentation between sites while allowing controlled sharing of selected networks • Design and placement of industrial firewalls • Secure interconnection between the sites • Migration plan for existing switches (reuse where possible and replace...

I'm seeking an experienced freelancer to assist with deploying a cloud-based Nextcloud solution. The primary purpose of this deployment is to facilitate data synchronization and backup. I need to synchronize and back up various types of data, including files and documents, contacts and calendars, as well as photos and videos. Key Requirements: - Expertise in setting up cloud-based Nextcloud deployments - Ability to configure and optimize Nextcloud for data synchronization and backup - Experience with managing and securing diverse data types: files, contacts, calendars, photos, and videos Ideal Skills and Experience: - Proven track record with Nextcloud installations and configurations - Strong understanding of cloud infrastructure and data security - Experience in data management an...

My domain’s mailbox on cPanel (accessed through Roundcube and standard IMAP/SMTP) has gone silent—nothing goes out and nothing comes in. I haven’t dug into the settings yet and would value someone who can jump straight in, trace the root cause, and get messages moving again. You’ll have cPanel and registrar access (and SSH if necessary). Once in, please: • Diagnose and correct the send/receive failure—whether it’s an Exim service snag, DNS/MX record problem, or port/SSL mis-configuration. • Prove success with live tests from an outside address and screenshot or header evidence of one outbound and one inbound message. • Leave me a concise note of every change plus a quick guide so I know how to check the settings myself next time. DN...

Devo realizzare una vera identità ibrida tra il nostro nuovo server Windows 2025 on-premises e il tenant Microsoft 365 già attivo. In pratica: • Configurazione di Active Directory e installazione di Microsoft Entra Connect per sincronizzare TUTTI gli utenti locali verso Azure AD / Microsoft Entra ID, con password hash sync e Single Sign-On pienamente funzionante. • Verifica che la replica avvenga senza errori, inclusi attributi, gruppi, licenze e criteri di sicurezza di base. • Attivazione di Remote Desktop Services sul server: creazione del file .rdp personalizzato da distribuire agli utenti per l’accesso remoto. • Test end-to-end della connessione RDS, assicurandosi che la stampante predefinita si rediriga e che le periferiche audio / v...

IWe are looking for a freelancer to install Apache Superset using Docker and connect it to our existing PostgreSQL database. Tasks: - Install the latest stable version of Apache Superset using Docker - Configure Superset to connect to an existing PostgreSQL/PostGIS database - Verify that dashboards and queries work correctly - Provide clear documentation of the installation and configuration process Environment: - Linux server - Docker - PostgreSQL / PostGIS Requirements: - Experience installing Apache Superset - Strong Docker knowledge - Experience connecting BI tools to PostgreSQL - Ability to document the setup so our team can maintain it Estimated effort: 1–2 days of work. Por qué es mejor así

I need a Windows Server Admin to assist with setting up Tally on DigitalOcean. I require help with both setting up a DigitalOcean account and installing Tally on Windows Server 2022. Ideal Skills and Experience: - Expertise in Windows Server 2022 - Experience with DigitalOcean - Proficient in Tally installation and setup - Good communication skills for guidance

I'm looking for a solution to run Microsoft Office on my Zorin Linux system. Requirements: - Install and configure Microsoft Office on Zorin Linux - Provide a method that is easy to use - Minimize reliance on Windows Ideal Skills: - Experience with Zorin Linux - Familiarity with Microsoft Office installation on Linux - Knowledge of virtual machines, Wine, and Office Online

I need an experienced freelancer to set up a home media server on Windows, primarily for streaming media. Requirements: - Use Plex, Kodi, or Emby for media server software - Configure for optimal streaming performance - Ensure secure access and user-friendly interface Ideal Skills and Experience: - Proficiency in Windows OS - Experience with media server software - Strong networking and security knowledge Please provide examples of similar work done.

I’m moving an entire Microsoft 365 tenant hosted through GoDaddy into Google Workspace and need the transition handled end-to-end with zero data loss and almost no visible downtime to users. Scope of work • Run a small-group pilot first, confirm data fidelity, then proceed to the full cutover. • Migrate Exchange Online mailboxes—mail, calendar, and especially contacts (this data set is the top priority). • Transfer every user’s OneDrive files and sharing permissions into matching Google Drive locations. • Plan and execute the DNS/MX switchover at the ideal moment, keeping inbound mail flowing. • Maintain a tested rollback path in case we must return to Microsoft 365. • Apply normal best-practice security throughout; no speciali...