The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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!
Asiakkaamme antoivat 16,357 arvostelussa keskimääräisen arvosanan System Administrators 4.91 / 5 tähteä.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!
Asiakkaamme antoivat 16,357 arvostelussa keskimääräisen arvosanan System Administrators 4.91 / 5 tähteä.Estou lidando com um problema técnico: o sistema está falhando de forma imprevisível e preciso de alguém que identifique a causa raiz, proponha a correção e valide que tudo volte a funcionar sem interrupções. O que espero de você: • Análise detalhada dos logs e do ambiente para localizar a origem da falha. • Implementação da solução definitiva, seja ajuste de código, configuração ou dependências. • Testes de regressão para garantir estabilidade após a correção. • Pequeno relatório descrevendo o que foi encontrado, a ação aplicada e como reproduzir o teste de validação. Tenho ace...
Necesito que un freelancer prepare tres (3) unidades USB de 32 GB cada una, con el siguiente contenido: - DOS USBs con Tails OS (última versión) preinstalado y almacenamiento persistente configurado para archivos cifrados en AMBOS. - UN USB adicional (independiente) que contenga únicamente un contenedor VeraCrypt (volumen cifrado) de aproximadamente 4-8 GB, sin datos dentro. Los tres USBs deben enviarse físicamente a España mediante un servicio de mensajería con seguimiento (DHL, FedEx, UPS). Por favor, envíenme un presupuesto único que incluya: - TRES USBs de 32 GB - Instalación y verificación de Tails + almacenamiento persistente en los dos USBs de Tails - Creación del contenedor VeraCrypt en el tercer USB - ...
I’m stuck turning an Apple MDM .csr file into the required .pem file. I’m doing the conversion inside Keychain Access on macOS, but every attempt ends with the “Certificate conversion failed” message. What I need from you: walk me through – or remotely perform – the correct steps to generate a valid .pem file from my existing .csr, verify the result, and explain any tweaks (OpenSSL commands, Keychain settings, file-permission changes, etc.) so I can repeat the process on my own next time. Deliverable • A working .pem file derived from my provided .csr • A concise set of repeatable instructions outlining what you did and why, so I can update future MDM push certificates without hitting the same roadblock.
I’m finalising an MDM solution and the last step is converting my certificate signing request into the .pem file the system expects. On macOS I create the .csr with a GUI app, yet when I feed that file into the conversion process I consistently get “File access denied”. I need you to: • diagnose why this particular .csr is being rejected, • successfully generate the required .pem, and • show me the repeatable steps (or correct settings/permissions) so I can recreate the file myself when the certificate renews. If you prefer using Terminal-based OpenSSL or have another reliable workflow, that’s fine as long as the end result is a valid .pem that my MDM server accepts. Quick turnaround is appreciated; as soon as the file works I’ll rel...
My production server runs on cPanel/WHM and I need a security-focused specialist to take over continuous protection duties. The priority is to keep the box clean, locked down, and fully recoverable at all times, so I’m commissioning an ongoing monitoring and troubleshooting arrangement rather than a one-off audit. Scope of work • Start with a comprehensive security audit: scan for existing malware, review logs, check permissions, and verify that all core services (Apache/Nginx, Exim, MySQL, SSH) follow current best practices. • Implement layered defences aimed at the three concerns I flagged—malware detection & removal, unauthorized-access prevention, and data encryption/protection. Typical tools might include CSF/LFD, ModSecurity rulesets, hardened SSH polic...
After moving my sites from RamNode’s cloud hosting to a new VPS, several core services stopped working. WHM and cPanel are installed and accessible, yet there were issues with the site. I changed the mailservers back to cloud hosting. What I need right now is a full review and clean configuration of the server so every component—mail server, FTP service, and DNS including nameserver glue—operates smoothly. Please log in, audit each service, adjust the settings, and document any permanent changes you make. Before I repoint the real nameservers, show me a working preview link or temporary hostname that proves the sites load correctly and email delivers both ways. Please also help me verify the glue records through WHOIS, so include that in your checklist. Deliverable for...
I need a Cyclos-certified system administrator to perform a clean installation of Cyclos 4 on my server and configure it specifically for a community-currency environment. The job goes beyond simply spinning up the software: once the core platform is running, I want the Payment systems, Member management, and Marketplace modules fully enabled, tested, and ready for real-world use. Please secure the installation, connect any required dependencies (Java, PostgreSQL, reverse proxy, HTTPS, mail service, etc.), and walk me through basic administrative tasks so I can manage users and currencies on my own. SSH access to a fresh VPS can be provided immediately. I will consider the work complete when the portal is accessible over HTTPS, all three modules operate without errors, and I have a brie...
Mi controlador a nivel kernel para Windows ya está prácticamente terminado, pero necesito que alguien lo compile de forma limpia en Visual Studio 2022 y lo deje listo para comercializar. El trabajo consiste en: • Abrir la solución actual en Visual Studio 2022, resolver cualquier conflicto de versión y generar el binario firmado. • Incorporar las tablas tipo “Kernel- Driver” que me faltan; están definidas en el código pero aún no se crean correctamente dentro del propio driver. • Ajustar el controlador para garantizar compatibilidad con el nuevo software al que debe dar soporte (corre en Windows 10/11). • Verificar que no queden advertencias de WDK y que pase las pruebas de integridad de Microsoft Driver Veri...
I’m looking for rapid, hands-on help to diagnose and fix a production server that is currently misbehaving. The priority is to identify the root cause, apply a clean fix, and document what was done so the issue does not re-appear. Please tell me about the similar server problems you have resolved in the past, the technologies or operating systems you are most comfortable with, and roughly how quickly you can begin. Solid, relevant experience is what will guide my choice.
I need a single .img file that I can flash straight to a micro-SD, slot into a Raspberry Pi 4, power on, and start mining—no extra setup, no internet connection, just plug-and-play. The image must boot directly into an advanced graphical interface that lets me monitor hashrate, temperature, accepted shares, pool status, and switch coins without touching the command line. The core requirement is support for the three main algorithms I selected—SHA-256, Ethash, and Cryptonight—so the device can tackle my full portfolio of roughly forty coins. Performance matters: the system should auto-detect optimal overclock settings for the Pi 4, make efficient use of its GPUs/CPUs, and offer pool configuration options over the local network while remaining completely self-contained (...
My NEC SV9500 PBX refuses to come back online after a routine restart. The system hangs during boot; I do not see telephones registering and I’m not sure whether any error codes flashed on the console because I wasn’t watching closely. I need an engineer who knows the SV9500 architecture, maintenance commands, and PCPro (or equivalent) to: • Connect remotely (or guide me onsite) to diagnose why the call-processing software is not loading. • Identify and clear any database, card, or processor faults preventing a full start-up. • Bring the PBX to an operational state where extensions are live and calls flow normally. Acceptance will be when the system completes its boot cycle, endpoints register, and we can place internal and external calls without drops...
My macOS laptop needs a clean, working installation of Clawd bot that I can fire up instantly to automate repetitive tasks. I would like you to handle everything—from downloading the correct build, resolving any homebrew / Python / dependency issues, right through to a test run that proves the bot can trigger a simple automation of my choice (for example, launching an app and moving a file). Here is what I expect at hand-off: • Clawd bot installed in a dedicated directory with all dependencies pinned to stable versions. • A launch method that survives reboots (command-line alias or a small Automator app—whichever you find more reliable). • One sample automation workflow set up and documented, so I can clone the pattern for future tasks. • A short, pl...
I have a fresh Proxmox installation in place and now need an experienced hand to complete the next step: configuring a set of Linux-based virtual machines from the ground up. Your job is to handle the full system setup and configuration workflow—networking, storage assignment, template creation, and any tweaks required so the VMs boot cleanly and are ready for application deployment. Please bring solid, demonstrable experience with the Proxmox VE interface, CLI utilities, and typical KVM/QEMU guest-optimisation practices. Once you’re done I expect: • A working pool of Linux VMs (Debian or Ubuntu preferred, but I’m open to other mainstream distros if you recommend them) • Basic resource limits, bridge/VLAN networking configured, and a brief hand-over note exp...
I’m facing persistent outbound packet loss on my Linux server. The problem appeared a few days ago, right after I upgraded my hosting plan, and it has started to affect production-level traffic. Latency is acceptable and inbound packets arrive cleanly; only the outbound stream is dropping frames. I need someone who can jump in immediately, trace the root cause, and apply a permanent fix. Typical tools for the job might include tcpdump, traceroute, iptables, nftables, netstat, or any monitoring utilities you prefer—as long as the solution is clearly explained and reproducible. Acceptance criteria: • Outbound traffic shows 0 % (or normal-range) packet loss under load tests. • A short summary of what was wrong and the exact commands or configuration changes you app...
I run a PHP-based webhook on a Hostage VPS KVM8. During traffic spikes the endpoint suddenly answers with HTTP 429 instead of the expected 200, so the calling service retries and eventually fails. The code itself has no limiter, which makes me suspect a server-level restriction that I’m not yet aware of. Your task is to trace the component issuing the 429s and tune or disable the rule so the webhook survives peak loads. It could be an Nginx/Apache rate-limit, ModSecurity, fail2ban, iptables, or something similar—I’m open to whatever you find. Acceptance criteria • Pinpoint the exact service or module returning 429 • Apply and document a configuration fix (or clean, minimal code patch if that proves necessary) • Stress-test the endpoint and demonstra...
I’m looking for an experienced developer or system/network specialist to help me configure a Windows-based AI proxy application. What I need: Configure SSL properly for the application Modify Windows hosts file and routing so that API requests are redirected Ensure all requests to providers like OpenAI / Anthropic go through the app instead of default endpoints (e.g. ) Verify everything works correctly with my current setup My current setup: I already have access to multiple GPT accounts I use APIs and tools like OpenClaw / OpenCode The app I want configured is installed from Microsoft Store: Requirements: Strong experience with: Windows networking SSL / certificates Hosts file and traffic redirection API routing / proxy tools Must be able to remote into my PC (via AnyDesk / T...
I need my small GoDaddy-hosted mail environment moved seamlessly into Microsoft 365. There are fewer than ten individual mailboxes, and I want every message, folder, contact, and calendar entry to arrive intact. I will take care of setting up Outlook and mobile devices myself once the cut-over is complete; what I need from you is a clean, well-planned migration that avoids any mail loss or extended downtime. Scope of work • Export and import all mailbox data (email, folders, contacts, calendars) from GoDaddy to the corresponding Microsoft 365 accounts. • Update DNS/MX and any autodiscover records so traffic flows to Microsoft 365 at the agreed switch-over time. • Verify each mailbox on Microsoft 365 is fully accessible via webmail before sign-off. • Provide a c...
I need laptops set up for my company. Requirements: - Install Windows 11 - Pre-install: - Microsoft Office Suite - Antivirus Software - Custom Business Applications Ideal Skills & Experience: - Experience with Windows 11 installation and configuration - Familiarity with Microsoft Office Suite and common antivirus software - Ability to install and configure custom business applications Looking for a freelancer who can ensure everything is set up correctly and ready for use.
I run five Magento 2.4.7-p1 ecommerce stores on a single dedicated server and have discovered a redirect to the malicious domain lanhd6549tdhse.top. I need someone to trace every trace of this malware, remove it cleanly, and harden the server so the infection does not return. A fresh, full backup from last night is ready, and an antivirus already runs on the machine, but the infection slipped through. What I expect from you: • Thorough file-system and database scan to locate the malicious code, scripts, or cron jobs referencing • Clean removal without disrupting live sales or order data • Security patching of Magento 2.4.7-p1 core and extensions where relevant • Server hardening suggestions and implementation (firewall rules, permission tightening, malware signa...
We are looking for a hands-on Telecom Engineer to manage a live SMS and SIP platform. Responsibilities include: Managing SMS gateway (Ozeki → Kannel migration) Setting up and troubleshooting SMPP connections Creating SMPP users and integrations Managing Asterisk SIP system (users, routing, configs) Troubleshooting delivery and connectivity issues This is a remote contract role (monthly retainer) with flexible hours, but requires availability for incident response. Requirements: Strong experience with SMPP Experience with SMS gateways (Kannel, Ozeki, or similar) Experience with Asterisk Strong Linux + networking knowledge IMPORTANT – Application Requirements To be considered, please include: Your experience with SMPP (real examples) SMS gateway(s) you have worked with Your...
Hello. We shippping rates setup in CS-CART version 4.9.3 however it's not setup correctly and we need someone to come up with a new way to produce the rates for the website. Currently, we are using the UPS API, but there are complications with it, and we will need to set up possible manual rate tables instead. CS-Cart experience is a big plus.
Environment Dedicated server on OVH OS: Linux DNS server: BIND (named) Nameservers: → → (OVH failover IP) Problem Domains (e.g. , ) are configured and working locally, but fail globally with: SERVFAIL No Reachable Authority Example: dig @8.8.8.8 → SERVFAIL What has been verified BIND is running correctly Zones are properly configured and loaded SOA records respond correctly on both nameservers Both NS respond locally Glue records are correctly configured at the registrar Nameservers are correctly delegated at the TLD level Firewall (iptables) allows TCP/UDP port 53 DNS service is listening on both IPs Failover IP is assigned to the server interface Key Findings From another OVH server: dig @ → timeout dig @ → timeout Packet loss detected when pinging the ...
Local First-Line Support Engineers Needed for Driving Simulators Our driving simulators will soon be installed at customer sites in multiple countries, and we are looking for reliable, locally based engineers who can provide on-site first-line support when needed. This assignment is strictly for basic field diagnostics and first response. When called, you would travel to the customer site, connect to the system, carry out a short diagnostic routine, and send a concise report by email outlining your findings. Regions / Countries we are currently seeking support coverage for: - Asia Taiwan Myanmar - Europe Spain France Netherlands Germany United Kingdom Czech Republic Austria Poland - Latin America Peru Ecuador Colombia Honduras Paraguay Chile Panama Argentina - India - United Sta...
I need fixing now for my Laptop via Anydesk. Every time I try to send a message on WhatsApp the app freezes and then shuts itself down. It launches normally, lets me type, but the moment I press “send” it stalls and crashes. Clearing the cache, reinstalling, and updating the OS have not solved it. I’m looking for someone who can quickly identify the root cause of this crash—whether it’s a corrupted install, conflicting background service, storage problem, or something deeper—and guide me through a clean, data-safe fix. Remote troubleshooting is fine so long as we preserve all chat history. Deliverables: • A stable WhatsApp that can send and receive messages without freezing. • A brief summary outlining the issue discovered and the steps...
I want a system, whenever a file has been transferred to another pc via networking that pc will play a custom sound message something like new file arrived kindly check.
I need someone who can comb through a Windows 11 desktop that currently houses three internal drives—the active system disk plus two older drives migrated from previous PCs—to track down several photo folders that have vanished from view. The search is strictly for photos, most of which were saved in RAW format. I still remember parts of many folder names, so you’ll have keywords to work with from the outset. I’m expecting a methodical, non-destructive approach that checks obvious paths, hidden locations, user profiles, legacy libraries, and any remnants left behind by past Windows upgrades. Feel free to lean on everything from advanced File Explorer queries and PowerShell scripts to specialized file-recovery or disk-cataloguing tools; just avoid anything that writ...
I run a computer-centric business that relies on a hybrid setup—part cloud, part on-prem servers—and I need a reliable partner to keep everything humming. Day-to-day, the help I’m after centers on two fronts: tracking down and fixing software glitches before they hurt productivity, and handling the nuts-and-bolts upkeep of our desktops, laptops, printers, and the small server room we still operate. Here’s what that looks like in practice: • Software troubleshooting: isolate crashes, apply patches, resolve compatibility issues across Windows and Linux, and speak with vendors when escalation is required. • Hardware maintenance: swap failing parts, run preventive diagnostics, clean equipment, and advise when a full replacement is more cost-effective. I r...
After moving my sites from RamNode’s cloud hosting to a new VPS, several core services stopped working. WHM and cPanel are installed and accessible, yet there were issues with the site. I changed the mailservers back to cloud hosting. What I need right now is a full review and clean configuration of the server so every component—mail server, FTP service, and DNS including nameserver glue—operates smoothly. Please log in, audit each service, adjust the settings, and document any permanent changes you make. Before I repoint the real nameservers, show me a working preview link or temporary hostname that proves the sites load correctly and email delivers both ways. Please also help me verify the glue records through WHOIS, so include that in your checklist. Deliverable for...
We are looking for an experienced 3CX technician to set up and configure a small business phone system. The system is already partially configured but requires a clean setup and proper routing. Current Setup Platform: 3CX (Cloud, v20) SIP Provider: Intertelecom Existing PBX (Intertelecom) may still be active Mobile usage via 3CX app Requirements 1. SIP Trunk Configuration Proper setup of SIP trunk with Intertelecom Resolve registration conflicts (single registration issue) Ensure stable inbound & outbound calling 2. Users / Extensions Create 4 extensions/users Configure mobile apps (3CX client) Set up voicemail for each user (or central voicemail) 3. Call Routing Outbound rules (basic + prefix handling if needed) Inbound routing: Ring Group (all users) Optional DID-based routing (if ...
I need a dependable AWS hand to jump in whenever a new EC2 instance has to be launched or an existing one re-configured. The core of the work is instance setup and configuration: choosing the right AMI and size, attaching and formatting volumes, assigning elastic IPs, creating or updating security groups, installing required packages, and handing over clean, well-commented documentation so I can track every change. Speed and clarity matter to me. Most requests will be short, same-day tasks, so I’m counting on you to respond quickly, follow best-practice hardening, and keep costs in check. Comfortable with the AWS console and CLI, IAM role creation, and snapshot scheduling is essential. While the immediate focus is EC2, skill with S3 or RDS would be appreciated for future phases. If...
I oversee a distributed team across the United States that relies on a mixed fleet of Windows laptops and MacBooks. I’d like to hand off day-to-day remote control management so that my staff always has quick, reliable help whenever problems arise. The core need is user support and troubleshooting. When a user is stuck—whether it’s a driver conflict on a Lenovo, a stubborn macOS update, a Wi-Fi profile that won’t save, or an application crash—I want you to jump in remotely, diagnose the issue, fix it, and document what you did so we can learn from each case. A secure, industry-standard remote-access tool such as TeamViewer, AnyDesk, or an RMM platform you already trust is expected. I’ll provide administrator credentials and establish whatever whitelisti...
Mi equipo presenta fallos constantes ligados al sistema operativo: pantallas azules, bloqueos inesperados y lentitud al arrancar. Busco a alguien con experiencia en soporte técnico y reparación de computadoras que pueda: • Diagnosticar la causa raíz de los errores del sistema operativo (Windows / Linux, según convenga). • Aplicar las correcciones necesarias: reparación de archivos dañados, restauración de servicios, actualización de controladores o reinstalación in-place si hiciera falta. • Optimizar el arranque y el rendimiento general, asegurando que no queden procesos colgados ni conflictos de compatibilidad. • Entregar un breve informe final con los pasos realizados y recomendaciones preventivas. ...
Outlook 2016 keeps asking for a password even though the credentials are correct. The moment I click the “Need Password” indicator it reconnects to Exchange, but the prompt returns later. Because the problem shows up on more than one workstation, I’m confident it isn’t a single-PC glitch. I’ve already walked through the usual basics—cleared the Windows Credential Manager entries, recreated the Outlook profile, checked Autodiscover records, and confirmed the Exchange certificate chain—yet the nagging prompt persists. What I need now is a deeper dive: someone who can pinpoint the root cause (whether it’s an authentication loop, cached token issue, or something server-side) and apply a permanent fix without disrupting mail flow. Deliverables...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
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