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!

Od 22,362 recenzí, klienti hodnotí našeho pracovníka System Administrators 4.92 z 5 hvězd.
Zaměstnat 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!

Od 22,362 recenzí, klienti hodnotí našeho pracovníka System Administrators 4.92 z 5 hvězd.
Zaměstnat System Administrators

Filtrovat

Moje poslední hledání
Třídit podle:
Rozpočet
pro
pro
pro
Typ
Dovednosti
Jazyky
    Stav zakázky
    21 Nalezené pracovní možnosti

    I’d like my Windows laptop configured so my children (aged 10-15) can use it safely without constant supervision. The setup must: • Enforce daily and weekly time limits that automatically log them out when the allowance is reached. • Block a list of questionable or distracting websites I will provide, and make it easy for me to add or remove sites later. • Prevent access to specific applications and system areas I choose, while leaving school-related programs untouched. • Let me trigger a remote log-off or shutdown from my own account or phone whenever homework needs attention. I don’t have a preferred tool yet and would appreciate your guidance on whether the built-in Windows family settings are enough or if a third-party suite (e.g. Qustodio, Norto...

    €62 Average bid
    €62 Průměr. nabídka
    13 nabídky

    I manage our university’s Student Information System and need a technically savvy partner to keep it running at peak performance while we expand its capabilities. Day to day, the work ranges from fine-tuning system configuration, maintaining a clean permission hierarchy, and automating routine admin tasks, through to digging into database queries when the system slows down or an integration drops data. You’ll be hands-on with: • System configuration & ongoing management • User account lifecycle, roles, and permissions • Reporting, analytics, and custom queries Current pain points I want resolved quickly: • Intermittent performance slow-downs during high-traffic periods • Data integration failures between the SIS and our LMS/HR platforms ...

    €58141 Average bid
    €58141 Průměr. nabídka
    48 nabídky

    My Outlook desktop client refuses to send or receive mail reliably and throws frequent error messages whenever I try. The account is tied to Microsoft 365, so it should behave like an Exchange mailbox, yet messages fail and experience consistent undeliverability problems. Here is what I need from you: • Pinpoint the root cause of the send/receive failures—whether it’s profile corruption, service-side throttling, an add-in conflict, or something else. • Apply the fix remotely (PowerShell, Outlook profile rebuild, cache reset, or any proven method you trust) and show me the steps so I can replicate them later if required. • Confirm that messages flow both directions instantly after the repair and that no sync errors remain in the Sync Issues folder. • Provi...

    €22 Average bid
    €22 Průměr. nabídka
    9 nabídky

    I need help with my laptop to check and delete unauthorized access. Ideal skills and experience: - Experience with security and access management - Familiarity with various operating systems - Ability to work efficiently and securely

    €130 Average bid
    €130 Průměr. nabídka
    36 nabídky

    I want to consolidate all of our documents into a single OneDrive shared drive for our small non-profit. Fewer than ten people will be using it, and every one of them needs full administrative access so they can add, edit, and reorganise files without restrictions. What I need from you: • Configure a shared OneDrive library (within our existing Microsoft 365 Non-Profit tenant or guide me through any licensing steps). • Apply full-admin permissions to each user on the team. • Establish a simple, logical folder structure and migrate our current documents. • Provide a brief hand-off: either a quick written guide or short screenshare/video so we can maintain the drive ourselves. We’re on a tight budget, so please keep the setup lean and stick to built-in Micro...

    €87 Average bid
    €87 Průměr. nabídka
    32 nabídky

    I'm having trouble connecting my V39 scanner to my desktop via USB. The error message states "No device found." I'd like someone who can diagnose and fix this issue. Ideal skills and experience include: - Experience with V39 scanners - Proficiency in troubleshooting USB connection issues - Familiarity with Windows, MacOS, or Linux (please specify your OS)

    €421 Average bid
    €421 Průměr. nabídka
    52 nabídky

    I need a Technical Admin or Infrastructure support Administrator who is comfortable diving into the weeds of Infrastructure engineering and giving me a clean shortlist of people. The roles I am filling span Linux administration, Middleware management, Cisco networking, broader Networking, Cyber Security and overall Infrastructure management, so you must be able technically evaluate the candidate. Your day-to-day will involve: • Conducting brief technical screens or written assessments that probe the areas above • Conducting Technical interviews

    €3 / hr Average bid
    €3 / hr Průměr. nabídka
    6 nabídky

    I need a Technical Admin or Infrastructure support Administrator who is comfortable diving into the weeds of Infrastructure engineering and giving me a clean shortlist of people. The roles I am filling span Linux administration, Middleware management, Cisco networking, broader Networking, Cyber Security and overall Infrastructure management, so you must be able technically evaluate the candidate.. Your day-to-day will involve: • Conducting brief technical screens or written assessments that probe the areas above • Conducting Technical interviews

    €3 / hr Average bid
    €3 / hr Průměr. nabídka
    3 nabídky

    We are looking for an experienced Amazon Linux 2023 Corporate Trainer to deliver instructor-led training for our client. Training Duration 16 Hours Mode: Virtual (Live Instructor-Led) Target Audience Linux Administrators Red Hat Administrators DevOps Engineers Cloud Engineers System Administrators migrating workloads to AWS Training Scope The trainer should have strong hands-on experience in the following areas: Amazon Linux 2023 Architecture & Features Amazon Linux vs SUSE Linux Comparison Deploying Amazon Linux on AWS EC2 EC2, IAM Roles, IMDSv2, Cloud-Init & User Data Amazon Linux Administration DNF Package Management Security (SELinux, IAM Integration, Security Updates) AWS Storage (EBS, LVM, Snapshots & Encryption) Linux & AWS Networking (VPC, Subnets, Route Tables, ...

    €34 / hr Average bid
    €34 / hr Průměr. nabídka
    11 nabídky

    I need a comprehensive setup of Google Workspace services including Email, Drive, and Calendar. Additionally, I require support with data migration within Google Workspace. Ideal Skills and Experience: - Experience with Google Workspace setup - Familiarity with data migration processes within Google Workspace - Knowledge of configuring security settings (e.g., two-factor authentication, data loss prevention) is a plus Please provide a detailed proposal outlining your approach and relevant experience.

    €3 / hr Average bid
    €3 / hr Průměr. nabídka
    18 nabídky

    I’m looking for an experienced IT professional who can jump in quickly and resolve a Windows-based software-installation problem for me. The application fails to complete its setup on a Windows 10 workstation and I need clear, actionable help to get it running without errors. Here is what I expect: • A live session (Zoom, Teams, or similar) or secure remote-desktop connection so you can diagnose the root cause. • Step-by-step fixes applied during the session, covering prerequisites, permissions, registry edits or command-line work if necessary. • A brief recap at the end—what you changed and how to repeat the process should I reinstall in the future. If you routinely troubleshoot Windows installers, handle dependency issues, and are comfortable with tools like ...

    €9 / hr Average bid
    €9 / hr Průměr. nabídka
    39 nabídky

    I need an expert to install the latest versions of WAMPServer and PHPlist on my Windows 11 laptop via TeamViewer. Requirements: - Experience with WAMPServer and PHPlist installations - Proficient in TeamViewer for remote assistance - Windows 11 familiarity is a plus Please ensure a smooth and error-free setup.

    €112 Average bid
    €112 Průměr. nabídka
    109 nabídky

    Our stack runs on a mix of Proxmox VMs, bare-metal Linux, and Docker containers that host several resource-intensive workloads (WordPress sites, small AI services, internal tools). Performance has started lagging, so the goal is a measurable speed-up across the board—CPU, memory, disk I/O, and network throughput. Scope of the optimisation • Server side: fine-tune Proxmox (kernel parameters, storage back-ends, CPU pinning) and harden the underlying Linux hosts, making sure Docker containers inherit those gains. • Network side: analyse current routing, bridges, VLANs and SDN overlays, then remove bottlenecks and reduce latency between VMs, containers and external clients. • Application side: profile the heaviest WordPress and AI containers, tweak PHP-FPM, databas...

    €438 Average bid
    €438 Průměr. nabídka
    156 nabídky

    Our IPECS UCP is already in place and running well, but the firmware is lagging behind the current stable release. I need the system brought up to date with a clean, verified firmware-only upgrade; no hardware swaps or network re-engineering are planned at this stage unless the new software requires a minor tweak. You’ll begin by confirming the exact model and present firmware build, take a full backup, then apply the latest approved firmware from Ericsson-LG. After the flash, I expect you to restore all existing configurations, run functional tests on call routing, voicemail, and any licensed features, and provide a brief report that lists the version numbers, tests performed, and confirmation that the upgrade passed without errors. Deliverables: • Verified system backup be...

    €132 Average bid
    €132 Průměr. nabídka
    17 nabídky

    Потрібна регулярна технічна підтримка для вже запущеного корпоративного сайту. Основний фокус — постійний моніторинг та підготовка звітів про працездатність ресурсу. Що саме очікую: • Цілодобовий або запланований моніторинг ключових показників (аптайм, швидкодія, помилки). • Короткі щотижневі та розгорнуті щомісячні звіти з аналітикою і висновками. • Оперативне повідомлення про критичні збої, щоб швидко реагувати й мінімізувати простій. Буде плюсом, якщо ви пропонуєте власні інструменти моніторингу або можете інтегрувати сайт у популярні сервіси (UptimeRobot, New Relic тощо). Доступ до панелі керування й деталі про хостинг надам після старту. Формат співпраці гнучкий: готовий обговорити тривалість та частоту звітів, а також додаткові опції, якщо згодом знадобляться ...

    €45 Average bid
    €45 Průměr. nabídka
    12 nabídky

    I’m looking for an experienced network and system administrator to take full ownership of our small-to-mid-sized office network. The environment is being refreshed from the ground up, so I need help at every stage: • Hardware deployment and configuration – routers, switches, wireless access points, and firewalls all need clean, standards-based builds. VLAN design, IP addressing, DHCP/DNS, and basic cabling checks are part of the work. • Performance monitoring – once the gear is live, I want continuous visibility. Please integrate the hardware into the monitoring stack of your choice (SolarWinds, PRTG, Zabbix, or similar), set sensible alerts, and give me a weekly health summary during the first month. • Security hardening – enforce best-practi...

    €834 Average bid
    €834 Průměr. nabídka
    53 nabídky
    €30 / hr Průměr. nabídka
    33 nabídky

    I need a purpose-built Ubuntu-based server image that installs cleanly and starts working straight away—no desktop layer, no local login, just an install-only ISO that I can hand to datacentre staff. Core stack that must be pre-integrated and verified: • accel-ppp compiled with all typical modules • PHP 8.4 with common extensions • iptables set as the default packet filter (nftables disabled) • FRR routing suite ready for BGP/OSPF configuration • OpenSSH enabled for remote administration (key auth only, root login disabled) Security hardening is critical. I want console TTYs disabled, no greeter or graphical login, and all unused services masked. The built image should ship with an opinionated firewall policy that blocks everything except the port...

    €422 Average bid
    €422 Průměr. nabídka
    46 nabídky

    I need an experienced Linux/PHP/Apache network engineer to troubleshoot and fix a captive portal running on Ubuntu/Linux. Issue: - My captive portal was originally configured with hotspot.inetwall.com. - I have migrated to because the ".com" domain has expired. - I updated the configuration files, but users are still being redirected to the old ".com" domain, or the captive portal still references ".com" during the login/redirect process. - I need the entire captive portal to use only, with no remaining ".com" references. Environment: - Ubuntu/Linux server - Apache - PHP - Custom Megacaptive captive portal - Let's Encrypt SSL - Hospitality Wi-Fi (HSIA) Scope of Work: - Find all remaining references to "". - Check Apache virtual...

    €55 Average bid
    €55 Průměr. nabídka
    77 nabídky

    Busco un especialista en informática y sistema Android para optimizar mi dispositivo. Necesito lo siguiente: • Configuración de herramientas como Shizuku y Brevent para mejorar el rendimiento • Ajustes internos del sistema que aumenten la velocidad, respuesta táctil y fluidez • Comandos y configuraciones claras, sin modificaciones peligrosas • Explicación paso a paso de cada cambio realizado • Mejora en el rendimiento para aplicaciones y juegos móviles El objetivo es lograr un teléfono más rápido, con mejor respuesta al tocar la pantalla y mayor fluidez general. Se valoran conocimientos en comandos ADB, optimización de procesos y ajustes de rendimiento sin necesidad de root.

    €22 / hr Average bid
    €22 / hr Průměr. nabídka
    73 nabídky

    I need a specialist who can stand up an outbound ViciDial instance and connect it cleanly to Twilio so my customer-support team can start taking and placing calls right away. About 20 agents will log in daily, so the system must be sized and tuned for that load, including concurrent calls, proper carrier failover, and responsive web interfaces. Essential features • Call recording enabled on every leg of the call, saved with logical file names and dates. • Automated call distribution so incoming queues and outbound callbacks are routed evenly across agents, with simple skill-based routing rules. Your work will include installing or hardening ViciBox/Asterisk, configuring Twilio Elastic SIP Trunking, setting up the dial plan, test campaigns, agent log-ins, and showing me wher...

    €87 Average bid
    €87 Průměr. nabídka
    18 nabídky

    Doporučené Články Jen pro Vás