Amministrazione dei sistemi Jobs

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!

Da 22,301 valutazioni, i clienti danno una valutazione ai nostri System Administrators di 4.92 stelle su 5
Assumi 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!

Da 22,301 valutazioni, i clienti danno una valutazione ai nostri System Administrators di 4.92 stelle su 5
Assumi System Administrators

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    17 lavori trovati
    Synology Folder Permission Setup
    6 giorni left
    Verificato

    I need to tighten up permission inheritance on a single shared folder in my Synology NAS. The goal is to: • Apply read-only access for one group of users • Grant full read/write access to another group • Hide every other sub-folder except one that should remain visible and usable to everyone who signs in The shared folder already exists; I just haven’t nailed the right combination of ACL rules and “Apply to this folder, sub-folders and files” options in DSM. You’ll connect remotely (QuickConnect, OpenVPN or any method you recommend) and walk me through: 1. Cleaning up the current permission tree so nothing conflicting is left behind 2. Setting the correct ACLs and confirming they inherit properly 3. Testing with real user accounts to prov...

    €16 Average bid
    €16 Offerta media
    10 offerte
    Migrate & Audit Apps Hosting
    6 giorni left
    Verificato

    I need my entire stack—both the web application and its companion mobile builds—moved from the current server to a fresh hosting account. I already hold full credentials for the existing environment, so you will have immediate access to download everything you need. The mobile apps are not store-hosted; they have been built, downloaded and installed locally, so please allow for any extra packaging or configuration those binaries may require once the back-end is relocated. While migrating, I also want a careful security sweep. The previous developer had full control and I want confirmation that no hidden users, cron jobs, backdoors, hard-coded keys or other forms of silent access remain in the codebase, databases or server configuration. A concise report outlining what you foun...

    €62 Average bid
    €62 Offerta media
    25 offerte

    I am looking for an experienced SVN/Linux Administrator who can provide me with the correct commands and procedure for taking path-specific SVN dumps with history and restoring them on a new SVN server. Current Home Environment Existing SVN repository contains multiple TBs of data I do NOT want to dump the complete repository. I only need dumps for specific SVN paths. Required SVN history: January 2022 to present Example paths: /hongkong/EngineerTeam /hongkong/IOTdevelopment/models /hongkong/EngineerTeam/dev What I Need I need the freelancer to provide a tested and clearly explained procedure/commands for: Identifying the SVN repository and required revision range corresponding to January 2022 through the latest revision. Taking a dump of only the specified SVN paths, rather than dum...

    €12 Average bid
    €12 Offerta media
    3 offerte

    **Remote IT Infrastructure Support Specialist Needed (India & Philippines)** We are looking for a skilled **Remote IT Support Specialist** based in **India or the Philippines** to assist with laptop setup, system configuration, and remote technical operations. This role requires **strong technical skills and hands-on IT experience**. The ideal candidate should be comfortable managing computer systems, troubleshooting issues, and supporting remote work environments. **Position:** Remote IT Support Specialist **Location:** India / Philippines (Work from Home) **Compensation:** $300/month **Workload:** Approximately 2–5 hours per week ### Key Responsibilities: * Set up and configure laptops for remote users * Install and configure operating systems, applications, and security t...

    €367 Average bid
    €367 Offerta media
    39 offerte

    Realizar un sistema informatico que de cumplimiento a la NOM 023 ASEA 2025, Requerimientos de la CNE, PROFECO y STPS para 5 estaciones de servicio. la idea es que sea una plataforma que centralice la informacion de estas estaciones, alerte cuando tenga vencimientos, lleve bitácoras operativas y de informes de auditorias

    €155 Average bid
    €155 Offerta media
    73 offerte

    Truebodh Technologies is seeking an experienced Windows Infrastructure & Application Migration Engineer for a 3-month migration project. The project involves migrating business-critical ASP.NET applications, Secured web Portal applications, IIS websites, and SQL Server Reporting Services (SSRS) from Windows Server 2012 to a modern supported platform. The selected freelancer will be responsible for planning, execution, testing, documentation, production cutover, rollback planning, and post-migration support. This is a hands-on technical project requiring expertise across Windows Infrastructure, IIS, .NET Applications, SQL Server, SSRS, Networking, PowerShell Automation, and Technical Documentation. Remote Engagement ₹25,000/month Office-Based (EMEA Shift) - Ghaziabad ₹35,000 - ₹45,0...

    €493 Average bid
    €493 Offerta media
    21 offerte

    I need a skilled field service technician to handle troubleshooting and repair tasks for IT hardware, specifically Dell, HP, and Cisco equipment. Key Responsibilities: - Onsite troubleshooting and repair of IT hardware issues - Managing break-fix repair scenarios - 1 hour on call on-site Ideal Skills and Experience: - Proven experience with Dell, HP, and Cisco IT hardware - Strong problem-solving skills - Ability to work onsite as needed

    €29 / hr Average bid
    Locale
    €29 / hr Offerta media
    6 offerte
    Monthly MySQL VPS Maintenance
    4 giorni left
    Verificato

    I run a production MySQL database on a Hostinger VPS and need a reliable partner to keep it healthy month after month. Each cycle you will: • Take full and incremental backups, store them off-server, and verify integrity • Review and tune slow-query logs, indexes, and configuration for peak performance • Apply the latest MySQL and OS security patches, harden permissions, and run vulnerability scans You’ll have root/SSH and phpMyAdmin access, and I expect a short report after each visit summarising what was done, any issues found, and recommended next steps. Everything must be scheduled so there is zero or minimal downtime for my users. If you’re experienced with Hostinger panels, mysqldump, Percona Toolkit, and general Linux server hardening, let’s...

    €84 Average bid
    €84 Offerta media
    166 offerte

    I am looking for a seasoned JP1/ITDM2 or JP1/Software Distribution professional who can run a hands-on, fully-remote training program for an intermediate audience inside our company. The goal is to leave the team confident enough to operate, maintain and extend our existing JP1 environment without outside help. Scope of the course • Live tool walkthrough that maps the console to daily administration tasks • Practical patching sessions covering scheduling, rollback and reporting • End-to-end software deployment workflows, including package creation best practices • Imaging techniques for new-build machines and recovery scenarios Format & pacing All sessions will be delivered remotely via our preferred conferencing platform. I expect a mix of instructor-le...

    €34 / hr Average bid
    €34 / hr Offerta media
    1 offerte

    I'm looking for someone to help onboard a client in person near CAPE TOWN. The process involves technical setup and training, specifically software installation. Key tasks include: - Install operating system on client's devices - Provide training on using the new system Ideal Skills and Experience: - Proficiency in installing and configuring operating systems - Experience in technical training and client onboarding - Strong communication skills

    €108 Average bid
    Locale
    €108 Offerta media
    2 offerte

    The server runs cPanel/WHM on AlmaLinux and still needs its final setup touches. I need the complete lifecycle covered: Server Hardening Included Harden once, autopilot keeps it. No monthly extra fees. CSF Firewall & Malware Scanning ModSecurity & Rootkit Hunter SSH & System Hardening + 10 more Server optimisation • Initial setup & configuration – secure the OS and WHM, tune Apache / Nginx, PHP-FPM, MySQL, DNS and mail services, set up automated off-site backups, firewall rules and basic monitoring. • Ongoing maintenance – keep AlmaLinux and all cPanel components patched, update PHP versions and extensions, rotate logs, renew SSL certificates and verify backups weekly. • Rapid issue handling – diagnose and fix any account-level or serv...

    €19 Average bid
    €19 Offerta media
    30 offerte

    I need an expert to install the latest versions of WAMPServer and PHPlist on my Windows 11 laptop via TeamViewer.nnRequirements:n- Experience with WAMPServer and PHPlist installationsn- Proficient in TeamViewer for remote assistancen- Windows 11 familiarity is a plusnnAdditional Information:nThe installation does not work natively due to multiple failed attempts resulting in "Bad DIRECTORY" messages. Registry edits were done to remove all WAMP entries, yet the issue persists. This seems to be related to a deeper problem in the Windows 11 Registry, requiring specialized troubleshooting and insights. Please ensure a smooth and error-free setup.

    €111 Average bid
    €111 Offerta media
    157 offerte

    am looking for a Control Systems Engineer who can provide a ready-to-use Virtual Machine (VMware or VirtualBox) pre-installed and configured with the following software environments for training purposes: ABB Symphony Plus (Engineering and Operations environment). Honeywell Experion PKS (R410, R500, or R510). Requirements: The VM must be fully functional with all necessary engineering tools (Builder, Configuration Studio, etc.). A brief live demonstration (5-10 mins) via screen share is required before releasing the final payment to verify the software environment is working correctly. Provide download links for the VM files (OVA/VMDK).

    €264 Average bid
    €264 Offerta media
    44 offerte

    I want a small, well-structured toolkit of Bash scripts that automate three routine but sensitive tasks on my Linux servers and come with clear, client-ready documentation. The first script, , must read a pipe-delimited CSV (username|email|role|department) and for each line create the user, add them to the right primary or secondary groups, set a strong random temporary password, force a password change at first login, and log every step to both stdout and /var/log for traceability. The second, , should perform a quick security sweep: list all regular accounts, flag anything that holds UID 0 besides root, highlight users whose passwords never expire, and output a neatly formatted report that I can email or drop into a SIEM. The third, , will accept a team folder path and group name, app...

    €18 / hr Average bid
    €18 / hr Offerta media
    34 offerte

    I run a small but growing company whose staff is scattered across several time zones. Because we have no physical headquarters, every employee depends on a reliable, secure technology stack to stay productive. I need an experienced IT systems manager who can step in and own that environment from end to end. Day-to-day you will: • Monitor and maintain all user workstations, keeping operating systems, apps and security patches current. • Administer accounts, permissions and backups in our cloud services (you’ll help me choose or streamline them where necessary). • Act as first-line support for the team: diagnose connection issues, resolve software conflicts and keep Zoom—our primary meeting platform—running smoothly. • Document processes so onboar...

    €9 / hr Average bid
    €9 / hr Offerta media
    31 offerte
    Eliminate Spam on Ionos Server
    13 ore left
    Verificato

    Our company mailbox on an Ionos-hosted server is being flooded with unwanted messages and I need an expert to stop them quickly and cleanly. The mail flow passes through Ionos before it reaches Microsoft Outlook on the desktop, so whatever you implement must sit at server level and not rely on individual client rules. What I already know • The problem is on the company email server, not a personal inbox. • We run on the Ionos mail platform (not Exchange or Google). • Spam ranges from phishing attempts to the usual marketing clutter—if it’s malicious, I want it blocked; if it’s legitimate but irrelevant, I want it routed to junk automatically. What I’m hoping you will do 1. Audit current MX, SPF, DKIM and DMARC records, then correct or harden...

    €20 Average bid
    €20 Offerta media
    29 offerte

    Saya membutuhkan bantuan profesional di bidang teknologi untuk memastikan sistem kami tetap berjalan lancar setiap hari. Fokus utamanya adalah menjaga kestabilan layanan, memonitor performa, serta menanggapi masalah kecil sebelum berkembang menjadi gangguan besar. Tugas inti: • Melakukan pemeriksaan rutin pada server, aplikasi, dan jaringan. • Menangani troubleshooting dasar ketika muncul error atau penurunan kinerja. • Memberikan saran praktis agar operasional tetap optimal dan aman. Infrastruktur kami sudah aktif; saya hanya perlu dukungan berkelanjutan agar semuanya “lanjut beroperasi” tanpa hambatan. Silakan ajukan jika Anda terbiasa bekerja cepat, komunikatif, dan berpengalaman dalam lingkungan teknologi produksi.

    €320 Average bid
    €320 Offerta media
    5 offerte

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