System Administration is a highly specialized field in the Information Technology (IT) sector. It involves a variety of tasks related to the maintenance, configuration, and reliable operation of computer systems, such as networks and core services. System Administrators not only manage the daily operations of these systems, but also have the responsibility of ensuring these systems are secure, protected from malicious attacks and software vulnerabilities.

A System Administrator is capable of optimizing system operations to ensure maximum uptime and efficiency using solutions like automation. This can help organizations save on costs and resources. An expert System Administrator can also identify areas where additional system resources are needed, create disaster recovery plans, automate processes, reduce risks, provide technical advice and implement overall security policies.

Some areas that should be addressed regularly by System Administrators include information security measures, disaster recovery solutions and infrastructure planning. All of this helps ensure that an organization's mission-critical systems remain up-and-running no matter what the situation may be.

Here's some projects that our expert System Administrator made real:

  • Setting up a secure backup process for companies
  • Troubleshooting login issues for laptops
  • Installing software for server control panels
  • Managing complex server configurations
  • Automating systems setup and configuration
  • Creating content for social media accounts
  • Enhancing availability, managing traffic and protecting from disasters
  • Debugging applications on Exchange Server
  • Scheduling data flows using SQL Server Agent
  • Restoring access to webpages

System Administration is an important job that requires expertise to master. With its complexity comes huge responsibilities - handling a controlled computing environment of a company or organization without compromising data security. If you have a project or idea that you want to be handled by an experienced System Administrator, Freelancer.com has you covered on finding one that meets your requirements. Post your project now and hire your own System Administrator today!

De 23,189 opiniones, los clientes califican nuestro System Administrators 4.9 de un total de 5 estrellas.
Contratar a System Administrators

System Administration is a highly specialized field in the Information Technology (IT) sector. It involves a variety of tasks related to the maintenance, configuration, and reliable operation of computer systems, such as networks and core services. System Administrators not only manage the daily operations of these systems, but also have the responsibility of ensuring these systems are secure, protected from malicious attacks and software vulnerabilities.

A System Administrator is capable of optimizing system operations to ensure maximum uptime and efficiency using solutions like automation. This can help organizations save on costs and resources. An expert System Administrator can also identify areas where additional system resources are needed, create disaster recovery plans, automate processes, reduce risks, provide technical advice and implement overall security policies.

Some areas that should be addressed regularly by System Administrators include information security measures, disaster recovery solutions and infrastructure planning. All of this helps ensure that an organization's mission-critical systems remain up-and-running no matter what the situation may be.

Here's some projects that our expert System Administrator made real:

  • Setting up a secure backup process for companies
  • Troubleshooting login issues for laptops
  • Installing software for server control panels
  • Managing complex server configurations
  • Automating systems setup and configuration
  • Creating content for social media accounts
  • Enhancing availability, managing traffic and protecting from disasters
  • Debugging applications on Exchange Server
  • Scheduling data flows using SQL Server Agent
  • Restoring access to webpages

System Administration is an important job that requires expertise to master. With its complexity comes huge responsibilities - handling a controlled computing environment of a company or organization without compromising data security. If you have a project or idea that you want to be handled by an experienced System Administrator, Freelancer.com has you covered on finding one that meets your requirements. Post your project now and hire your own System Administrator today!

De 23,189 opiniones, los clientes califican nuestro System Administrators 4.9 de un total de 5 estrellas.
Contratar a System Administrators

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    23 trabajos encontrados

    Busco un administrador de sistemas que se encargue del mantenimiento quincenal y mensual de mi servidor dedicado con Ubuntu. El servidor aloja un sitio web en Apache/Nginx y una base de datos MySQL/PostgreSQL que son críticos para el negocio. Lo que necesito que gestiones con regularidad: • Actualización de software: aplicar parches del sistema operativo, paquetes y dependencias de las aplicaciones web sin interrumpir el servicio. • Monitoreo de rendimiento: revisar uso de CPU, RAM, disco y tráfico; ajustar recursos o configuración cuando sea necesario y generar un informe breve tras cada revisión. • Gestión de seguridad: comprobar logs, reforzar firewall, mantener reglas de iptables/ufw, gestionar certificados SSL y realizar es...

    $129 Average bid
    $129 Oferta promedio
    114 ofertas
    Advanced License Management System
    6 días left
    Verificado

    Please make sure to read the PDF carefully before posting any comment or placing a bid.

    $1408 Average bid
    $1408 Oferta promedio
    99 ofertas

    I’m looking for a freelancer who can help me perform SW updates to the Automotive Audio Amplifier. The parts are not in the vehicle and are located in El Paso. Here’s what I need from you: • Identify the correct update package for the hardware revision and regional SKU. • Prepare the setup for flashing using the directions from the Supervisor. • Execute the update, capturing logs so we can verify a complete, error-free install. • Follow required protocol to ensure traceability and ensure things are working properly. If you’ve worked with OEM infotainment systems, custom ROMs, or related tools such as ADB, QFIL, or OEM flashing utilities, that’s a plus. Required short term contract of 2-3 weeks (potentially future contracts depending on p...

    $34 / hr Average bid
    $34 / hr Oferta promedio
    55 ofertas

    NO PLACEHOLDERS. Do not insert a placeholder: please read the project details carefully because here are all the details you need to make an accurate estimation. I need to identify, install, and configure open-source software that allows me to remotely manage IoT devices without using an MQTT network. Currently, I intend to manage control units that oversee already installed environmental sensors performing: • temperature monitoring • humidity detection • air quality measurement The connectivity currently available on the devices is based on FTP; the control units are equipped with a telephone SIM. The goal is to have a dashboard that allows for viewing device status, monitoring data flow from devices, performing tasks on devices (such as firmware updates), etc. Envi...

    $37 Average bid
    $37 Oferta promedio
    47 ofertas
    Windows MySQL Local Server Setup
    6 días left
    Verificado

    I need someone to install and fully configure the latest stable release of MySQL on a Windows-based machine that will act only as a local development server. Your job starts with the clean installation itself—downloading the correct installer, choosing the right configuration options for a single-instance environment, and making sure the service starts automatically with Windows. Once the database engine is in place, please secure it by setting a strong root password, removing test databases, and enabling any recommended Windows firewall rules so it is not exposed beyond the host PC. I will also need one non-root user created with full privileges for development purposes, plus a short verification script or command-line check that confirms connections work from MySQL Workbench and ...

    $12 Average bid
    $12 Oferta promedio
    42 ofertas
    $419 Oferta promedio
    63 ofertas
    Remove OneDrive & Clean C Drive
    5 días left
    Verificado

    I’m on Windows 11 and want Microsoft OneDrive completely gone—no lingering background services or registry traces. Once it is uninstalled and the sync folders are safely disconnected, I need a thorough audit of my C: drive. The goal is to identify and eliminate every duplicate across documents, photos, videos and any other file types, then reorganise what remains into a clearer folder structure. I’d like sensible, easy-to-navigate directories (e.g., Work, Personal, Media) and shortcuts updated so existing programs still find what they need. Please back up anything you delete or move, provide a log of duplicates removed, and deliver a concise before/after folder map so I can see exactly what changed. Tools such as PowerShell, WinMerge, dupeGuru, or comparable Windows 11 ...

    $125 Average bid
    $125 Oferta promedio
    24 ofertas
    Windows XMRig Miner Setup
    5 días left
    Verificado

    I need a Windows-focused developer who can turn XMRig into a background service for a fleet of mining PCs I already operate. The goal is simple: once the installer runs, XMRig should install the rig with the needed program, start automatically with the OS, and apply my custom CPU tuning without any visible console or tray icon. Key details • Target OS: Windows 10/11 on consumer-grade hardware • Required tweak: XMRig custom setup as it runs (no GPU work) • One-click or fully installer preferred (Inno, NSIS, or your tool of choice) Deliverables 1. Compiled XMRig binary with my CPU config baked in (or an editable JSON if you have a smarter approach) 2. installer/​script that registers the miner as a background service and confirms successful launch 3. Brief usage:...

    $413 Average bid
    $413 Oferta promedio
    113 ofertas

    Saya memerlukan bantuan untuk menyiapkan Gmail Bisnis (Google Workspace) pada domain khusus yang sudah saya miliki. Fokus utamanya adalah memastikan saya mendapatkan fitur email tak terbatas dan lingkungan kerja yang stabil, aman, serta siap dipakai tanpa repot. Lingkup pekerjaan: • Menghubungkan domain saya ke Google Workspace, termasuk konfigurasi DNS dan MX record. • Mengaktifkan paket dengan fitur email tak terbatas. • Menyiapkan admin console—pengaturan keamanan dasar, SPF, DKIM, dan DMARC agar email tidak masuk spam. • Membuat satu alamat utama untuk saya pribadi; saat ini saya belum membutuhkan alamat karyawan tambahan. • Memberikan panduan singkat (dokumen atau video) tentang cara menambah pengguna di kemudian hari, mengelola label, filter, s...

    $18 / hr Average bid
    $18 / hr Oferta promedio
    4 ofertas

    Saya ingin melakukan upgrade versi besar pada LMS Moodle kami sekaligus memastikan integrasi Edwiser tetap berjalan mulus. Fokus pekerjaan ini adalah: • Melakukan backup penuh sebelum proses upgrade. • Melompat ke versi Moodle terbaru yang stabil (major version upgrade) tanpa kehilangan data pengguna maupun kursus. • Mengecek dan menyesuaikan beberapa plugin serta fitur kustom yang sudah ada agar tetap kompatibel setelah upgrade, termasuk komponen Edwiser. • Menjalankan proses testing pasca-upgrade (fungsi login, enrolment, kuis, laporan, dan transaksi Edwiser) lalu menyelesaikan bug yang muncul. • Menyediakan catatan teknis sederhana berisi langkah upgrade, perubahan konfigurasi, dan cara rollback jika diperlukan. Saya sudah menyiapkan akses server dan d...

    $391 Average bid
    $391 Oferta promedio
    60 ofertas

    I host my foundation’s domain with Hostinger and have just discovered that they no longer offer email services. I need a professional who can quickly step in, create more than 10 branded mailboxes, and point everything to my existing Google Workspace tenant. The scope is straightforward yet detail-critical: • Create the new user accounts on Google Workspace under my domain. • Update all Hostinger DNS records (MX, SPF, DKIM, DMARC) so mail flows smoothly to Google. • Verify that Calendar integration, shared mailboxes and advanced security settings are all active and tested for every new user. • Supply a concise hand-off document showing each change made and how to add future accounts. I already have Workspace live and will provide admin access. What I need...

    $38 Average bid
    $38 Oferta promedio
    21 ofertas

    I’m looking for a reliable local technician who can act as the hands-and-eyes extension of our remote IT team whenever a workstation issue crops up. The core of the role is simple: be on site, follow the real-time guidance of our engineers, and help us troubleshoot whatever is affecting the user’s desktop or laptop. Typical calls may involve tracing connectivity problems, reseating or replacing components, checking cabling, or running through software prompts that our remote tools can’t reach because the machine is unresponsive. While the immediate need centers on workstation troubleshooting, a bit of flexibility is appreciated—occasionally we might ask you to press the power button on a switch or confirm a status light on nearby gear if you’re already ther...

    $11 / hr Average bid
    $11 / hr Oferta promedio
    12 ofertas
    Migrar software turbo para Ubuntu
    4 días left
    Verificado

    Tenho um computador antigo com Ubuntu 12.10 que controla uma máquina de balanceamento de turbos. Não possuo a senha de administrador e, sempre que tento atualizar ou instalar algo, sou bloqueado. Além disso, temo que o hardware falhe a qualquer momento, então preciso transferir o programa para um computador mais recente que também rodará Ubuntu. Preciso de ajuda para: • Realizar, por suporte remoto, uma cópia completa do software que está no PC antigo, incluindo todas as dependências e configurações necessárias para a máquina de equilibrar turbos. • Instalar e configurar esse mesmo software em um novo computador com Ubuntu, garantindo que ele funcione exatamente como no equipamento origin...

    $20 / hr Average bid
    $20 / hr Oferta promedio
    47 ofertas

    I need a dependable technician who can take over my helpdesk queue during the overnight shift (roughly 11 p.m.–7 a.m. UTC). You will be the first point of contact for any Windows-based incidents that arrive after hours and will keep the environment stable until the day team comes back online. Your nightly workflow will revolve around three core areas: • Troubleshoot incoming tickets that relate to hardware faults, software errors, or sudden network disruptions. Clear, concise ticket notes are mandatory so the day shift can see exactly what you did and why it worked. • Apply scheduled operating-system and application updates that have been pre-approved in our change calendar. Each update must follow the documented rollback procedure in case of failure. • Perform rou...

    $554 Average bid
    $554 Oferta promedio
    26 ofertas

    I’m midway through a project and need to get robust monitors in place on Datadog. While I’m comfortable with the application stack itself, my Datadog knowledge is minimal, so I’d like an expert to take ownership of the monitoring layer. Scope • Analyse the current environment (mix of EC2 instances, Docker containers and a couple of managed services) and translate our reliability goals into actionable Datadog monitors. • Configure the monitors directly in our Datadog account—thresholds, alert conditions, notification channels, tags, dashboards, everything required for clear, noise-free alerts. • Walk me through the reasoning behind each monitor so I can maintain them afterwards. Short Loom recordings or concise written notes are perfect. Delive...

    $2 / hr Average bid
    $2 / hr Oferta promedio
    12 ofertas

    Network Engineer for Secure Proxy & Gateway Architecture Seeking an experienced network engineer to build and deploy a secure proxy system using 3X-UI (MHSanaei) on a remote server and sing-box on a Raspberry Pi client gateway, featuring automatic protocol failover between VLESS-Reality and Hysteria2. Tech Stack Server: 3X-UI (MHSanaei fork) Client: sing-box on Raspberry Pi Protocols: Hysteria2, VLESS-Reality Project Phases 1. Proof of Concept: Set up development client environment, configure remote nodes, and deploy sing-box locally to verify routing and failover. 2. QA Deployment: Deploy a single QA server and connect the Raspberry Pi gateway for real-world testing. 3. Production Deployment: Scale to multiple production server nodes and configure the Raspberry Pi gateways for hig...

    $54 / hr Average bid
    $54 / hr Oferta promedio
    68 ofertas

    I need an experienced Moodle administrator to take full charge of our platform remotely. Your primary mission is to keep the system current and running smoothly, then help me launch and manage individual courses without introducing any custom plugins. The core of the engagement centres on: • Upgrading our Moodle instance to the latest stable release, applying all minor patches, and confirming that existing core features remain intact. • Ongoing maintenance—security checks, backups, performance tuning, and quick-turn troubleshooting whenever an update causes unexpected behaviour. • Course creation and setup: duplicating our template, configuring enrolment settings, and making sure resources display correctly. • Grading and assessments management: building gr...

    $221 Average bid
    $221 Oferta promedio
    38 ofertas
    n8n CSV Import Automation -- 2
    2 días left
    Verificado

    I have a clean Linux-based VPS and I need n8n installed from scratch, secured, and running as a background service. Once it is live, create a reusable n8n workflow that accepts a CSV file, parses its rows, and inserts nearly every column into an existing (or newly generated) MySQL table. If a field ever needs to be skipped, I want the mapping simple enough that I can toggle columns on or off later without touching code. Please include concise, step-by-step documentation for two areas: 1) Server side – every command and config change you run to install n8n on Linux, set up environment variables, reverse proxy (if used), HTTPS, and auto-start on reboot. 2) Workflow – screenshots or export JSON plus a plain-language walkthrough that shows where the CSV is read, how the colu...

    $94 Average bid
    $94 Oferta promedio
    218 ofertas

    I need someone who can make all Windows TPM 2.0 remote attestation checks pass inside a Linux KVM/QEMU Windows VM. I don't care how it is implemented. I just need a working setup where everything passes, including: Trusted vendor EK/EKCert EK certificate verification EK public key matching the certificate AIK enrollment and trust Isolated VM PCR domain TCG Event Log PcrsMatchTcgLog=true PCR replay / all PCRs matching TPM Quote verification Nonce verification Credential Activation Microsoft/external EK verification Windows TPM pre-attestation / health checks Current setups only give me part of this: physical TPM passthrough gives trusted EK/EKCert but causes PCR/TCG log mismatch, while software vTPM gives clean isolated PCRs but uses an untrusted/operator EK certificate....

    $166 Average bid
    $166 Oferta promedio
    48 ofertas

    I need help configuring an existing domain to set up email on a custom email server. Requirements: - Configure email settings for a custom email server - Ensure proper DNS settings are in place Ideal Skills and Experience: - Experience with domain configuration and email setup - Familiarity with custom email servers and DNS management - Technical proficiency to troubleshoot and resolve configuration issues

    $72 Average bid
    $72 Oferta promedio
    84 ofertas

    Freelancer Required: Yeti Installation, Configuration & Training ### Project Title **Yeti VoIP Platform – Installation, Configuration, and Training** ### Project Description We are looking for an experienced **Yeti VoIP Developer/Engineer** to install, configure, and provide training on the Yeti VoIP platform for our company. The freelancer should have hands-on experience with Yeti, VoIP infrastructure, and Linux servers, and be able to guide our technical team through the complete setup and operation of the platform. ### Scope of Work **1. Installation** * Install Yeti on our server. * Set up all required dependencies and components. * Configure the platform and ensure it is running properly. **2. Configuration** * Configure the Yeti platform according to our business ...

    $79 Average bid
    $79 Oferta promedio
    14 ofertas

    I'm seeking a skilled developer to automate an oilfield pumping unit. The automation system should be capable of: - Start/stop control - Monitoring and reporting - Safety shutdowns - Efficiency optimization subroutine Ideal skills and experience: - Experience with pump automation systems - Proficiency in control systems and safety protocols - Strong background in efficiency optimization techniques - Familiarity with monitoring and reporting tools Please provide relevant experience in your bids.

    $25 / hr Average bid
    $25 / hr Oferta promedio
    68 ofertas

    I have roughly 1,000 user IDs that must be reviewed and cleaned up today. You will connect to my Windows PC via remote desktop—this is my first time granting remote access, so reliability and care are key. Using only the standard tools already on the machine, you’ll open each account, check the list of active devices, and revoke every extra session so that just one device remains. I’ll demonstrate the exact steps before we begin; after that it’s a repetitive but precision-focused task that has to be finished before the day ends. When you message me, let me know: • the earliest time you can start today, • how long you expect to take for the full batch, • your total fee, • any comparable account-maintenance or data-entry work you’ve handle...

    $33 Average bid
    $33 Oferta promedio
    4 ofertas

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