The ultimate guide to hiring a web developer in 2021
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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:
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!
Από 20,744 αξιολογήσεις, οι πελάτες αξιολογούν τους System Administrators με 4.9 από 5 αστέριαSystem 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:
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!
Από 20,744 αξιολογήσεις, οι πελάτες αξιολογούν τους System Administrators με 4.9 από 5 αστέριαI’m midway through a Windows-based PowerPoint AV project and, out of nowhere, the presentation can’t see the MP3 files I always kept on my local hard drive. When I go to Insert > Audio, the folder I’ve used for years is simply gone from the browser and none of the slides play their linked tracks. What I need from you is two-fold: first, help me track down those missing MP3 files on the local drive; second, guide me as we relink—or re-embed—them so every slide plays correctly again. I’m happy for you to remote into my machine with TeamViewer, AnyDesk, or your preferred tool, so you can pinpoint the issue in real time and show me exactly what went wrong. Please be comfortable navigating Windows file indexing, checking hidden/system folders, reviewing ...
# Need Expert to Install & Configure MailChannels on Dedicated Server I am looking for an experienced system administrator / email deliverability expert to install and properly configure MailChannels on my dedicated server. ## Server Details * Dedicated Linux server * WHM / cPanel environment * Exim mail server * Root access available ## What I Need * Install MailChannels relay integration * Configure Exim correctly * Set up SMTP routing through MailChannels * Ensure outgoing emails are working properly * Configure SPF, DKIM, and DMARC if needed * Test deliverability * Make sure the setup survives reboots and cPanel updates * Troubleshoot any errors during installation ## Important I already attempted the installation, but the configuration is not saving correctly in WHM/smartho...
Since the latest round of software updates on my Linux server running cPanel/WHM, Exim has stopped sending any mail at all. Messages queue but never leave the server, so clients receive nothing and there are no corresponding bounces. I need an experienced cPanel administrator who can: • Trace the root cause inside Exim, whether it’s a mis-applied update, permission problem, broken ACL, or a service conflict. • Restore normal outbound delivery and confirm mail flows cleanly to external providers (Gmail, Outlook, Yahoo, etc.). • Document every change you make so I can reproduce the fix if I roll this server back or clone it. Access available: WHM, SSH, and cPanel account level if required. Minimal downtime is important, so please outline any service restarts y...
I need an experienced engineer-developer to carry out a comprehensive tool upgrade for my existing smart plant setup. The main aim is to elevate overall performance and unlock new functionality without disrupting current operations. Where the focus lies • Aspect to upgrade: “tool upgrade” – I am open to improvements across software, firmware, and any supporting hardware that directly influences tool efficiency. • Tool system category: again “tool upgrade” – think of it as a holistic refresh rather than a narrow subsystem tweak. • Must-improve features: Performance is priority one; Functionality comes right behind it. Faster response times, greater reliability, and added capabilities that help the plant run smarter are what I’m a...
Job Role: Freelance Network Engineer (Onsite Support) Duration: 1 Day Onsite Assignment Responsibilities: Provide onsite network installation and support. Troubleshoot network connectivity and hardware issues. Configure and verify routers, switches, and firewall devices. Perform cable connectivity and port checks. Coordinate remotely with the client or technical team if required. Ensure proper documentation and task completion updates. Follow onsite safety and client procedures. Required Skills: Experience in network troubleshooting and support. Knowledge of routers, switches, firewalls, and LAN/WAN environments. Familiarity with Cisco/Juniper/HP or similar networking devices. Basic understanding of IP addressing, VLANs, and network testing. Ability to work independently onsite. Good c...
I’m looking for a U.S. based virtual assistant for a part time remote IT support role. The work is fully remote, fully asynchronous, and there’s no on call requirement. You’d help with setting up laptops, desktops, and phones, including Windows or macOS installs, updates, cloud directory setup, drive encryption, app configuration, MDM enrollment, and making sure email, VPN, and endpoint protection are working. Most tasks take 30 to 45 minutes, and the schedule is flexible. Great fit for someone with Windows and macOS experience who wants extra income.
I need someone to quickly place one site on a server in maintenance mod
Quiero llevar mi impresora 3D a Klipper sobre Debian y necesito apoyo específico en dos frentes: actualizar el firmware del MCU y dejar afinado el software de control que corre en la Raspberry Pi. La parte física ya está lista; lo que busco es experiencia práctica para que todo quede funcionando de manera estable y rápida. Qué necesito: • Ajustar el con los parámetros correctos de pasos, termistores y límites de movimiento. • Integrar el front-end que prefieras (Mainsail o Fluidd) dejando los servicios de systemd activos al arranque. • Guía paso a paso de los comandos usados para que pueda repetir el proceso más adelante. Ya tengo Debian instalado y parte de Clipper configurado, pero hay detalles que no...
Necesito asistencia experta para realizar la instalación inicial de Winpak versión 4.9.5 y enlazarlo correctamente con un panel Honeywell MPA4 destinado a un sistema de control de acceso. No cuento con manuales ni documentación de referencia, por lo que requiero una guía completa y acompañamiento paso a paso via TEAMS. Alcance esperado: • Instalación limpia de Winpak 4.9.5 en un servidor Windows (local o remoto). • Configuración de los servicios y bases de datos necesarios. • Reconocimiento y vinculación del panel MPA4, verificación de la comunicación y firmware. • Creación de al menos un par de credenciales de prueba para validar entradas/salidas de control de acceso. • Pruebas...
Our ServiceNow instance handles the full ITSM ticket load—incidents, changes, service requests, essentially every standard IT ticket we raise. Today many of those steps are still manual, scattered across e-mails and ad-hoc approvals. I need those repetitive touches removed and replaced with robust, auditable automation built directly in ServiceNow. Scope of work • Build advanced, rules-driven workflows for Incident, Change and Service Request management using Flow Designer (or the legacy Workflow Editor where it still makes sense). • Orchestrate cross-module hand-offs so a single ticket can trigger follow-on tasks or child records automatically—no swivel-chairing across modules. • Leverage IntegrationHub and REST/Scripted APIs where outside data or externa...
We have a self-hosted 3CX phone system that is already up and working. What I now need is an experienced 3CX administrator who can take over the day-to-day care of the platform so it stays secure, performant, and fully backed up. The core of the engagement is ongoing maintenance: • Regular updates carried out manually, only after I receive a short heads-up summarising what is about to change and any expected impact. • Backup management that keeps encrypted snapshots on my designated off-site storage, with a quick-restore plan tested periodically. • Continuous monitoring of system health, trunks, and call-quality metrics, with monthly reports that highlight trends and any recommended actions. Ideally, we’re looking for someone based in North America and in a simi...
# RedeemX Backend Development - Complete System Integration ## Project Overview RedeemX is a multi-casino auto-claiming software. Frontend is COMPLETE (React + TypeScript). Need backend API, database, and integration work. ## Current Status Frontend: React website with pricing, registration, legal pages Backend: No API, no database, no payment integration Legal consent popup before purchase redirect Desktop app integration (status unknown) ## Complete User Flow ### 1. Website Visit - User visits React website (already built) - Views pricing: $25/week, $75/month, $500/year, $1000/lifetime - Optional registration: casino usernames, preferences (needs API) ### 2. Purchase Flow (NEEDS IMPLEMENTATION) - User clicks pricing card - **Legal consent popup appears** (needs to be built): - Sho...
I need an end-to-end roll-out of Data Loss Prevention, Bitdefender security, and Mobile Device Management within our small enterprise environment. The primary objective is data protection, with a clear emphasis on data loss prevention. Scope of work • Design an integrated architecture that combines Bitdefender GravityZone (or equivalent) with a robust DLP module and a cloud-based MDM platform. • Install and configure the solutions across all endpoints—laptops, desktops, and mobile devices—using best-practice security hardening. • Build and fine-tune DLP policies so they: – Monitor data transfers in real time – Block any unauthorized access or exfiltration attempts – Alert me immediately when suspicious activity occurs (em...
Hello We are looking for an experienced IT freelancer who can help us get VMware Workstation 15 running properly on Windows 11. Inside the VM we are running Windows XP. We already tried several known workarounds, unfortunately without success. Allways Shows Error: Failed to start the virtual machine. We also tested VMware Workstation 17, but Windows XP either freezes during boot or does not fully load to the desktop. We need someone with strong virtualization / legacy systems experience who can troubleshoot and fix the setup remotely. This can also become a long-term collaboration, as we regularly have similar IT and virtualization projects for clients. Thank You
I’m ready to move my vps from AlmaLinux 8 to the latest stable release and bring cPanel/WHM up to date at the same time. Because several critical applications and services run on this vps, I need an experienced systems admin, plan the safest path, and carry out the work without delay. Once the upgrade is complete I expect every hosted site, email account, and service to come back online exactly as before, now powered by the most recent AlmaLinux and cPanel/WHM versions. To keep things clear, here are the concrete outcomes I’m after: • Operating system upgraded from AlmaLinux 8 to the latest supported release • cPanel/WHM updated to the newest stable build • All current configurations, accounts, and critical services retained or cleanly re-configured &bu...
My Windows Server-hosted application used to open almost instantly but now sits spinning for up to two minutes before the main window appears. Nothing in the interface or code has been changed on my side, yet the delay is consistent for every user who launches it through Remote Desktop or directly on the server console. I’m looking for someone who can: • Remotely profile the startup sequence (PerfMon, Event Viewer, ProcMon, or your preferred tools) • Pinpoint the exact bottleneck—whether it’s DLL loading, network lookups, disk I/O, group policy, antivirus, or anything else uncovered during tracing • Propose and implement a clean fix that does not compromise security or stability • Provide a brief report explaining root cause, the steps you too...
I need a reliable field technician to visit our office near St Xavier’s School Lane Road, Doranda, Ranchi, Jharkhand and swap a single memory module in a Dell PowerEdge 730 server. We will shut down all VMs and power the machine off before you arrive, so the brief downtime is fully planned. Once the new DIMM is seated, power the server back up, watch POST, and confirm the additional memory is detected in iDRAC. I will handle the remote diagnostics myself afterward—just let me know the final memory count and any alerts you see. No formal certification is mandatory; solid hands-on experience with Dell server hardware is what matters. Please leave the removed DIMM on the rack shelf so I can inspect it later. If this quick job goes smoothly, you’ll become my go-to tec...
My top priority right now is IT, specifically technical support focused on software troubleshooting. I’m dealing with recurring application errors and system glitches that are disrupting daily operations on several Windows 10 workstations. Here’s what I need from you: • Diagnose the root cause of crashing programs and slow performance. • Provide clear, step-by-step fixes that can be applied remotely and documented for future reference. • Advise on preventive measures—updates, patches, or configuration tweaks—to keep the issues from resurfacing. You should be comfortable connecting through remote-desktop tools, navigating Windows event logs, and testing solutions without risking data loss. If you have experience resolving similar problems q...
# URGENT: Help Recover Website & Email Services (Domain/Hosting Issue) I am urgently looking for an experienced system administrator / hosting expert / domain specialist to help recover my website and business email services. ## Situation My domain is: My hosting provider is Mherhost (possibly connected with ). Since the digital blackout in Iran, my website and all connected email accounts have gone offline and I have no access to the hosting provider anymore. I do NOT live in Iran and currently cannot contact them properly. My business is being seriously affected because: * Website is down * Business emails are inaccessible * I may lose important client communications * I already paid hosting/services until January 2026 ## What I Need I need someone experienced with: * Doma...
My outgoing messages from Google Workspace often land in spam and I need that fixed. I want to begin by sorting out SPF—please confirm whether any record already exists and adjust or create it so it passes every check. Once SPF is solid, move straight on to DKIM and DMARC so the whole domain is protected and aligned. What I need from you: • Detect any current SPF record, explain its status, then publish a fully-compliant version in DNS • Generate and add the correct DKIM key through the Workspace admin console, verifying that it propagates • Create a DMARC policy that balances protection with deliverability, plus guidance on reports • Run end-to-end tests (Google Postmaster Tools, MXToolbox, etc.) and share the before/after results I’ll supply DNS...
I want to update an expired entity in SAM (old ) lost username and password
We are a hotel in the UK using an older SmartLock key card system (MiFare / SecureFast / Be-Tech type system). The original supplier is no longer operating in the UK, so we need an experienced freelancer to safely migrate the entire system (software + SQL database + encoder functionality) to a new Windows PC. This is a live hotel system, so reliability is critical. CURRENT SETUP Software: SmartLock – Reception Hotel Database: SQL Server (NOT Access) SQL Instance: RECEPTION-PCSmartLock System currently runs locally on one PC Card encoder connected via USB System has previously had compatibility issues with newer SQL versions (worked with SQL 2017, not with newer versions) SCOPE OF WORK The freelancer must: 1. Full System Migration Install SmartLock software on new PC Install a...
We are seeking an experienced Kubernetes (K8S) and Linux professional to provide daily remote job support for ongoing work involving on-premises Kubernetes infrastructure deployed on bare metal servers. The role involves helping with Kubernetes cluster setup, Linux server administration, troubleshooting production and non-production issues, deployment support, and general guidance during daily work activities. The ideal candidate should have strong hands-on experience with: Kubernetes cluster deployment on bare metal Linux administration and troubleshooting On-prem infrastructure environments Kubernetes networking, storage, and security Cluster maintenance and operational support This is a remote freelance opportunity requiring 1–2 hours of support per day. The candidate should ...
Big decision of Yogi government: Smart meters will now work like postpaid in UP, prepaid system ended, now bill will come at the end of the month 06/05/2026 07:24:17 Lucknow, 5 May. To provide relief to the electricity consumers of Uttar Pradesh from the technical problems faced by smart prepaid meters, the government has taken a big and relief decision. Now all the smart meters in the state will function like normal postpaid meters. Energy Minister A.K. Sharma, in an important meeting held with senior departmental officials on Monday, gave instructions to end the prepaid system with immediate effect. Complaints were being received continuously from the electricity consumers that when the recharge in the smart prepaid meter was over, the power would suddenly go off and due to server pro...
I need an experienced system administrator to take charge of preparing and configuring both Windows and Linux environments from the ground up. On the Windows side that means installing the OS, enabling the required roles and features, creating baseline GPOs and user groups, and ensuring remote management is locked down. For Linux, I primarily work with Ubuntu and CentOS; the job involves fresh installs, package hardening, service configuration, and setting up SSH-based administration. Because this is the first phase of a broader operations overhaul, solid documentation is essential. I expect concise build notes, a repeatable checklist for each platform, and a short verification report showing that every machine boots cleanly, responds to basic health checks, and is reachable over the agre...
My office PCs have begun crashing unpredictably and I can’t determine whether the problem lies in one application or several. I need an experienced technician to dig into the logs, replicate the failure, trace the root cause and apply a reliable fix so the machines run smoothly again. Scope of work • Gather crash reports, event-viewer logs and any minidumps I supply (or that you pull remotely). • Isolate the faulty process, driver or configuration that is triggering the crashes—whether it is a single program or a chain reaction between several. • Implement corrective actions: patch, reinstall, re-configure, or roll-back as appropriate, then stress-test to verify stability. • Document what you found and the exact steps you took so I can keep a clear ...
I need to move our entire TIBCO Administrator environment off an ageing HP-UX box and onto a fresh pair of Windows Server machines while keeping the existing applications online and functional. The current stack is TIBCO Administrator itself, and all of its services must come across intact. In scope are: • Configuration Management • Monitoring and Management • User and Access Management Custom configurations that live under the current install also have to be migrated and validated; there are no bespoke shell scripts to worry about. I will provide remote access to both source and target servers, the current domain export, and any passwords or certificates you require. You will handle installation of the appropriate TIBCO binaries on Windows, migrate the domain repo...
Preciso voltar a usar um sistema de gestão empresarial escrito em Visual FoxPro. O banco de dados está preservado; o problema é que o caminho para iniciar o aplicativo foi perdido e eu não tenho credenciais de administrador. O que espero: • Identificar ou recriar o executável/atalho correto, ajustando paths e bibliotecas. • Se necessário, reconstruir arquivos de configuração (.ini, .cfg) para que o sistema encontre as tabelas existentes. • Liberar o acesso administrativo ou criar um novo usuário com todas as permissões. Informações disponíveis: – Diretório completo com todas as tabelas DBF e índices. – Backup recente do servidor onde o sistema rodava. ...
I want to move everything tied to into the Google ecosystem so my team can enjoy the better tools and features Google offers without paying Crazy Domains’ high mailbox fees. Here is what I need done: • Transfer (or re-delegate) the domain from Crazy Domains into my own Google account, or at minimum point all DNS to Google while keeping ownership intact. • Set up Google Workspace for two full mailboxes, migrate existing mail history, and turn on SPF, DKIM and DMARC so messages land in inboxes—not spam folders. • Update MX and any other required DNS records, then verify that Gmail sends and receives flawlessly. • Ensure the Wix website stays online throughout the switch; the domain must still resolve to the current site with zero downtime. ...
I’m preparing a new cPanel/WHM server that will host several ecommerce sites, so transaction security and uptime are non-negotiable. I have the base installation ready; what I’m missing is a thorough security hardening that covers the key layers: firewall, SSL/TLS, and ongoing malware protection. Here’s exactly what I need from you: • Firewall configuration – Set up and fine-tune CSF (or another proven solution) within WHM, closing unnecessary ports, adding brute-force and flood protection, and making sure the rules survive reboots and updates. • SSL/TLS certificates – Issue and install certificates for every present and future domain via AutoSSL or Let’s Encrypt, ensure forced HTTPS, HSTS where appropriate, and automatic renewal without man...
Maintenance Scope for the IBM Content Manager-Based EDM Solution The maintenance concerns the Electronic Document Management (EDM/GED) solution installed around IBM Content Manager. The currently installed licenses cover: IBM Content Manager Software – Version 8.4.1 DB2 Database Management System Document Scanning & Acquisition Module – 20 licenses Electronic Document Management and Archiving Module – 10 licenses ARTICLE 24: SCOPE OF SERVICES The purpose of this maintenance service is to ensure the continuity, reliability, and performance of the Electronic Document Management system based on IBM Content Manager. The scope of maintenance covers all software components of the system, including functional modules, databases, scripts and automated processes, as well ...
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