Network Security is an important component of IT solutions as it keeps organizations safe from cyber threats. A Network Security Consultant can help ensure a company's network is properly secured. They provide a range of expert services including evaluation of the existing security posture, recommending security solutions, providing project management and software solutions, monitoring and reporting on usage, incident response and forensics. Network Security requires a deep understanding of the underlying systems and processes.

Here's some projects that our expert Network Security Consultants made real:

  • Find the source of cyber threats to enhance security
  • Create secure solutions working with double routers, VPN and firewalls
  • Produce educational materials to spread knowledge in network security field
  • Design secure computer system architectures for clients of varying sizes
  • Utilize sophisticated technologies such as SDN (Soft Defined Networks), SVM (Support Vector Machine), Machine Learning to classify traffic
  • Identify Suspicious behavior in digital data for forensic investigations
  • Enhance network security with cutting edge algorithms and software solutions
  • Test and mitigate potential cyber threats from denial of service attacks.

Network Security is essential for any organization to remain safe from cyber threats online. Whether you need to review your existing Network Security posture, implement secure protection systems or create educational materials for internal staff, an experienced Network Security Consultant on Freelancer.com can help bring your ideas to life. Contact one now on the world's leading freelancing website and get the peace of mind that comes with secure networks.

На підставі 26,450 відгуків клієнтів, рейтинг Network Security Consultants становить 4.9 із 5 зірочок.
Найняти Network Security Consultants

Network Security is an important component of IT solutions as it keeps organizations safe from cyber threats. A Network Security Consultant can help ensure a company's network is properly secured. They provide a range of expert services including evaluation of the existing security posture, recommending security solutions, providing project management and software solutions, monitoring and reporting on usage, incident response and forensics. Network Security requires a deep understanding of the underlying systems and processes.

Here's some projects that our expert Network Security Consultants made real:

  • Find the source of cyber threats to enhance security
  • Create secure solutions working with double routers, VPN and firewalls
  • Produce educational materials to spread knowledge in network security field
  • Design secure computer system architectures for clients of varying sizes
  • Utilize sophisticated technologies such as SDN (Soft Defined Networks), SVM (Support Vector Machine), Machine Learning to classify traffic
  • Identify Suspicious behavior in digital data for forensic investigations
  • Enhance network security with cutting edge algorithms and software solutions
  • Test and mitigate potential cyber threats from denial of service attacks.

Network Security is essential for any organization to remain safe from cyber threats online. Whether you need to review your existing Network Security posture, implement secure protection systems or create educational materials for internal staff, an experienced Network Security Consultant on Freelancer.com can help bring your ideas to life. Contact one now on the world's leading freelancing website and get the peace of mind that comes with secure networks.

На підставі 26,450 відгуків клієнтів, рейтинг Network Security Consultants становить 4.9 із 5 зірочок.
Найняти Network Security Consultants

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    Cisco ASA High-Availability Setup
    6 дні(-в) left
    Верифіковано

    Two Cisco ASA 5512 appliances • Integrate Microsoft Active Directory authentication for every local and VPN user, • Build an active-standby fail-over pair between the two ASAs • Upgrade the firmware to the current long-term-support release • Add a secondary Internet uplink that rides over a 4G/LTE modem; the ASA should keep the static fibre circuit as primary and fail over automatically to the mobile link only during outages. It is production system so credentials cannot be shared, all work needed to be done on a shared screen. Please bid If you know ASA CLI/ASDM inside out and have handled AD integration and dual-ISP designs

    $117 Average bid
    $117 Сер. заявка
    16 заявки
    Cisco ISE posture Troubleshooting - 04/09/2026 21:02 EDT
    6 дні(-в) left
    Верифіковано

    Our network relies on Cisco Identity Services Engine, but recent posture checks are failing and several policy sets are no longer behaving as intended. I need an engineer who lives and breathes Cisco ISE to dive straight into the security-centric side of the platform, isolate the root causes, and rebuild any broken logic so users are authenticated and authorized exactly as our compliance rules demand. The immediate focus is policy development, enforcement, and the associated troubleshooting workflow—no fresh installs, just refining what is already in place and making sure every posture requirement is met without disrupting production traffic. You will have full access to the existing ISE nodes, logs, and current policy matrix, plus remote console time with our network team for c...

    $183 Average bid
    $183 Сер. заявка
    13 заявки
    Ethical Web App Pen-Test
    6 дні(-в) left

    I need a skilled ethical hacker to carry out a focused penetration test on my production web application. The goal is to uncover any exploitable weaknesses before they become a problem, with particular attention to: • Data validation • Session management Once we sign an NDA I’ll share architecture notes, limited credentials, and a staging URL. Please stay within scope, avoid destructive techniques, and document every step so I can reproduce the findings. Deliverables I expect – A concise executive summary of overall risk – Detailed, step-by-step proof-of-concept for each issue discovered – Practical remediation advice ranked by priority – A retest summary after fixes (short verification pass) Tools such as Burp Suite, OWASP ZAP, or yo...

    $616 Average bid
    $616 Сер. заявка
    10 заявки
    Apple Business MDM Mac Setup
    6 дні(-в) left
    Верифіковано

    I have a brand-new, company-owned Mac that needs to be enrolled in Apple Business Manager, linked with Microsoft Intune, and locked down so we keep full administrative control without relying on any personal Apple IDs. Scope of work • Create or verify our Apple Business/Managed Apple Account and add the Mac as an organisation-owned device. • Enrol the Mac in our chosen MDM (Intune) and push baseline security: FileVault on, strong password & lock rules, automatic OS updates, recovery keys stored to the organisation. • Grant end users Admin access once the policies are in place. • Pre-install and licence a short list of apps—Microsoft Office, Google Chrome, Cursor, Visual Studio Code, Pg Admin and SQL Server Express—so they appear on first login...

    $91 Average bid
    $91 Сер. заявка
    9 заявки
    HD Livestream VPN Setup
    6 дні(-в) left

    I'm looking for an expert to set up a VPN and edge network to pull high-definition video feeds from various remote locations over a 4G/5G network. The primary goal is to receive high-quality video feeds. Key Requirements: - Secure and optimize data transmission for HD video. - Set up infrastructure to handle simultaneous feeds across multiple sites. - Expertise in VPN and edge computing technologies, specifically WireGuard VPN. - Experience with 4G/5G network configurations. - Familiarity with Robustel Routers and Axis Cameras. Ideal Skills & Experience: - Networking and cybersecurity knowledge. - Background in video streaming technologies. - Proven track record with similar projects. Please provide a detailed plan and past work examples.

    $34 / hr Average bid
    $34 / hr Сер. заявка
    35 заявки

    I’m laying the groundwork for REIN’s next-generation network-plus-AI platform here in Durban and want a partner who can sit at the same table as the rest of the founding team, not just ship a one-off task. The immediate focus is threefold: • Network design – choose and justify topologies, vendors, and automation tooling for a scalable, low-latency backbone that can stretch from on-prem PoPs to public cloud. • Security protocols – build a zero-trust model from day one, including segmentation, key-management strategy, and compliance mapping. • AI integration & platform architecture – define how our inference services, data pipelines, and control plane ride on top of the network, and how we monitor them end-to-end. I’m expect...

    $21 / hr Average bid
    $21 / hr Сер. заявка
    56 заявки

    I'm seeking a skilled technician to resolve a complete loss of connection for my phone line and broadband. Key Requirements: - Diagnose and repair the issue - Experience with telecom and broadband systems - No previous error messages or unusual indicator lights Ideal Skills and Experience: - Telecom repair expertise - Broadband connectivity knowledge - Problem-solving skills Please provide a detailed plan and timeline for the repair.

    $8958 Average bid
    $8958 Сер. заявка
    2 заявки

    Tengo un servidor web Ubuntu alojado en Azure. Después de un ajuste en las reglas perdí todo acceso externo: no responden ni SSH (22) ni HTTP (80) ni HTTPS (443). Desde el portal de Azure todavía puedo entrar por consola de emergencia, así que la máquina está encendida; simplemente la capa de red o las reglas internas/externas están bloqueando el tráfico. Necesito que: • Analices y corrijas las Network Security Groups, reglas de firewall de la VM y cualquier configuración de iptables/ufw que impida estos puertos. • Restablezcas la autenticación SSH con claves existentes o, si fuera necesario, generes una nueva pareja y la dejes operativa. • Verifiques que el sitio web vuelve a ser accesible por HTTP...

    $152 Average bid
    $152 Сер. заявка
    86 заявки
    Home Network Optimization
    5 дні(-в) left
    Верифіковано

    I need help sorting out my home PC network. I'm experiencing issues with saving documents to the cloud. Key issues include: - Saving to cloud problems - Difficulty saving documents Ideal skills and experience: - Networking expertise - Experience with cloud storage solutions - Troubleshooting skills Looking for someone who can quickly diagnose and fix these issues.

    $154 Average bid
    $154 Сер. заявка
    46 заявки
    On-Site Mumbai Network Engineer- Monthly Engagement
    4 дні(-в) left
    Верифіковано

    I have a two-month engagement at one of our facilities in Mumbai and need a hands-on Network Engineer / System Administrator who can be on site throughout the period. The remuneration mentioned is monthly pay out, five days, 9 hrs. The core environment runs on Windows Server, so solid, independent capability there is non-negotiable. Day-to-day you will be looking after the full network stack—routers, switches and firewalls—while keeping our users productive and the servers healthy. Your main focus areas: • Network maintenance & real-time troubleshooting: keep latency low and uptime high, escalate only what you can’t solve on the spot. • Windows Server setup, hardening and routine administration. • User support and training when new configurations...

    $539 Average bid
    $539 Сер. заявка
    12 заявки
    IP CCTV Live Monitoring Setup
    4 дні(-в) left
    Верифіковано

    I have an IP-based camera network in place and now need a specialist to turn those feeds into a seamless, real-time monitoring solution that runs through dedicated software on a workstation. Your focus will be to: • discover and integrate all existing IP cameras (ONVIF/RTSP compliant) into the chosen software • optimise the stream settings so the live view remains smooth even when bandwidth fluctuates • configure user accounts and permissions so only authorised staff can view or control the cameras • set up layouts, camera groups, and basic alert rules (motion, loss of signal) within the application • document the final configuration so I can expand or troubleshoot the system later I am open to products such as Milestone XProtect, Blue Iris, or similar pr...

    $161 Average bid
    $161 Сер. заявка
    33 заявки

    I need free VPN recommendations so that i can bid on the US location based project. There is a few US location based project in which i need VPN to change my current address to US based address as required

    $11 Average bid
    $11 Сер. заявка
    15 заявки

    I am unable to bid on USA based project specifically which is location based project. I need recommendations of free VPN which can change my location and i can bid on the US location based project. More details: What type of VPN service are you looking for? Free VPN What information should successful freelancers include in their application? Experience What level of experience do you prefer the freelancer to have? Expert

    $20 Average bid
    $20 Сер. заявка
    4 заявки
    Security Analysis: Network Vulnerability Assessment -- 2
    4 дні(-в) left
    Верифіковано

    Network Vulnerability Assessment & Security Analysis I can perform a structured Network Vulnerability Assessment to identify potential security weaknesses in an authorized network environment. The assessment includes understanding the network topology, IP addressing, subnetting, network devices, services, and communication protocols before conducting security testing. The project covers: Network Discovery: Identify live hosts and understand the network structure. Port & Service Enumeration: Analyze open ports and running services using Nmap. Network Architecture Analysis: Review routers, switches, firewalls, servers, and client systems. Protocol Analysis: Examine commonly used protocols such as TCP/IP, HTTP/HTTPS, SSH, DNS, DHCP, FTP/SFTP, and SMTP. Vulnerability Assessment: Ide...

    $1097 Average bid
    $1097 Сер. заявка
    18 заявки
    Low-KYC UAE High-Volume SIP Trunk
    4 дні(-в) left
    Верифіковано

    My operation needs a dependable SIP trunk that can originate and terminate voice traffic to United Arab Emirates destinations while keeping KYC requirements to the absolute minimum—ideally none. I am open to unlicensed wholesale routes as long as they deliver consistent quality and uptime. The trunk must comfortably handle tens of thousands of voice minutes per month, with enough concurrent channels to prevent congestion. Competitive per-minute rates, clean CLI presentation, and stable routing are critical. Please indicate whether you offer SIP registration or IP authentication, the codecs you support (G.711, G.729, etc.), and any fair-use or traffic restrictions. Deliverables • Active SIP credentials or IPs ready for testing • Current rate sheet and payment terms &bu...

    $50 Average bid
    $50 Сер. заявка
    1 заявки

    Saya sedang mengerjakan beberapa tugas dan proyek kampus yang berhubungan dengan sistem operasi serta jaringan komputer. Saya membutuhkan pendampingan berupa konsultasi jarak jauh untuk: • Memecahkan masalah instalasi dan konfigurasi sistem operasi (Windows, Linux, atau keduanya). • Mendesain dan men-troubleshoot topologi jaringan sederhana hingga menengah—termasuk pengaturan IP, routing dasar, serta keamanan jaringan. • Memberi arahan best-practice agar hasil kerja saya rapi, terdokumentasi, dan sesuai kebutuhan akademik. Ruang lingkup mencakup sesi tanya jawab, panduan langkah-demi-langkah, serta pemeriksaan ulang konfigurasi yang sudah saya kerjakan. Waktu pengerjaan fleksibel namun saya menargetkan seluruh materi terselesaikan tepat waktu sebelum tenggat tuga...

    $16 / hr Average bid
    $16 / hr Сер. заявка
    9 заявки

    I need on-site assistance in Hong Kong to measure and document the real-world speed of our wireless network. The job is strictly performance oriented—I am not looking for security or basic connectivity checks. What matters most is an accurate picture of current network speed so we can benchmark upgrades now underway. Scope of work • Visit the designated office floors and selected public areas that already have access points installed. • Run repeatable speed tests (e.g., iPerf, Speedtest CLI, or equivalent) on both 2.4 GHz and 5 GHz bands, capturing downstream and upstream throughput. • Record signal strength, client device specs, test time, and environmental notes for each location so results are reproducible. • Summarise findings in a short report that h...

    $9 / hr Average bid
    $9 / hr Сер. заявка
    4 заявки
    VAPT Assessment
    3 дні(-в) left
    Верифіковано

    I need a comprehensive vulnerability assessment and penetration test performed on my production web application. Because I can grant limited internal knowledge—such as architecture diagrams, sample credentials, and API documentation—I would like the engagement run as a grey box exercise rather than pure black-box reconnaissance. 1 External VA/PT - 4 public IPv4/region - Full manual validation through WAF/security stack 2 Internal VA/PT - 10 segments / 250 live IPs - Credentialed + non-credentialed testing 3 Web Application — Virtual Trust - 1 app / 20 modules / 10 roles - Grey/white box + targeted production validation 4 Web Application — CrimsonLogic - 1 app / 20 modules / 10 roles 5 API Security 50 endpoints base - Full OWASP API Top 10 + business logic 7 Confi...

    $604 Average bid
    $604 Сер. заявка
    15 заявки

    I need an experienced Azure Engineer to come on board in the UAE for a brief engagement focused on two clear goals: 1) deploying and managing new Azure resources, and 2) hardening the environment to meet security and compliance requirements. Scope of work • Stand up and configure Azure Virtual Machines that will host line-of-business applications. • Integrate those VMs with Azure Active Directory so users can authenticate through our existing tenant and benefit from conditional access policies. • Apply security best practices and document the controls you implement so my internal audit team can trace them later (NSGs, Defender for Cloud recommendations, disk encryption, role-based access, etc.). • Transfer knowledge to my in-house admins—short walkthrough...

    $1075 Average bid
    $1075 Сер. заявка
    66 заявки
    Multi-Vendor Network Config & Troubleshooting -- 2
    3 дні(-в) left
    Верифіковано

    I’m bringing in an external expert to tighten up a mixed-vendor environment that spans Cisco, Juniper, HPE/Aruba switching and a FortiGate firewall. Most of the day-to-day items run well, yet lingering issues around VLAN design, trunk consistency, OSPF versus static routes, and a few NAT quirks at the edge are starting to show. The single highest-value task is establishing a reliable Site-to-Site VPN between two offices so we can retire an aging MPLS circuit. Beyond that, I’d like you to review current firewall rules, clean up redundant objects, and confirm that inter-VLAN routing on the switch stacks lines up with our security zones. SolarWinds is in place for monitoring; if you see gaps in SNMP polling or alerting, feel free to tune those as you go. To keep expectations c...

    $27 / hr Average bid
    $27 / hr Сер. заявка
    25 заявки
    VCF 9 Network & Firewall Configuration
    3 дні(-в) left
    Верифіковано

    Our VMware Cloud Foundation 9 deployment is ready for its management-domain build and I need the underlying network finished off quickly and cleanly. The hosts sit on Aruba switches, and the remaining tasks centre on switchport updates, IP/DNS adjustments, and a complete firewall rollout so the VCF bring-up checks pass first time. Work to be completed • Aruba switchports: create or modify trunks/access ports, tag the correct VLANs for Management, vMotion, vSAN, NSX-Edge and future workload domains, then document every change. • IP addressing: finalise the allocation plan, reserve management ranges and update any DHCP scopes. • DNS: add the A/PTR records for SDDC Manager, vCenter, ESXi, NSX and support services so name resolution works end-to-end. • Firewall: im...

    $96 Average bid
    $96 Сер. заявка
    13 заявки
    Aruba Home Office Network Design and Implementation
    3 дні(-в) left
    Верифіковано

    Network design and implementation involving Aruba CX switch configuration, Aruba wireless controller configuration, and Aruba SD-WAN EdgeConnect integration. Responsible for preparing Low-Level Design (LLD) documentation, including subnetting, IP addressing, VLAN and port allocation for CCTV, BSD devices, AV/TV systems, and other network endpoints in accordance with company VLAN standards. The design also includes detailed network topology and diagrams. The wireless infrastructure is managed using ArubaOS 8 (AOS 8) rather than Aruba Central.

    $83 Average bid
    $83 Сер. заявка
    7 заявки
    WireGuard + RADIUS Setup on Ubuntu
    2 дні(-в) left
    Верифіковано

    I’m running an Ubuntu VPS and want to turn it into a WireGuard VPN And RADIUS server that authenticates users against RADIUS. also need to migrate my existing Mikrotik User Managers all user to the RADIUS. What I need is a clean installation and configuration of WireGuard, full integration with the RADIUS so that user creation and revocation stay centralised, and a short set of commands or notes I can reuse when I add new clients in the future. Key points for this assignment • Ubuntu (latest LTS) is already provisioned with root access. • Mikrotik User Manager is live and reachable; I can supply the shared secret and connection details. • Only RADIUS-based logins should be accepted by WireGuard once you’re done. Deliverables 1. Working WireGuard server on ...

    $177 Average bid
    $177 Сер. заявка
    75 заявки

    I need a detailed and actionable plan for configuring FortiAnalyzer so that it monitors our network devices, servers, and endpoints in a way that genuinely serves the security team. The solution must deliver real-time alerts, support deep historical data analysis, and provide clear compliance reporting so we can pass audits without scrambling at the last minute. You will start by reviewing our current Fortinet stack and logging policies, then map out the exact steps, settings, and best-practice dashboards required. I expect the deliverables to be concise yet thorough: • Architecture & data-flow diagram tailored to our environment • Step-by-step configuration guide for log collection, alert rules, and report templates • Sample real-time alert policies with severity ...

    $170 Average bid
    $170 Сер. заявка
    17 заявки
    Need serious help -- 4
    1 день left

    Hello my name is CJ and I’m in need of serious assistance due to my pc getting hacked and need to make sure the steps I’ve done erase everything they installed down to the process.

    $24 / hr Average bid
    $24 / hr Сер. заявка
    31 заявки
    Pi-hole and VPN Setup
    1 день left

    I need a skilled freelancer to set up Pi-hole and a VPN for both desktop/laptop and mobile devices. The primary goal is to block ads and tracking while ensuring secure remote access. Requirements: - Set up Pi-hole for ad and tracking blocking. - Configure a secure VPN for remote access. - Ensure compatibility on both desktop/laptop and mobile devices. - Provide documentation for setup and maintenance. Ideal Skills and Experience: - Experience with Pi-hole and VPN configurations. - Knowledge of network security. - Familiarity with both desktop and mobile platforms. - Strong documentation skills. Please include your relevant experience in your application.

    $128 Average bid
    $128 Сер. заявка
    29 заявки
    Port Forwarding Setup for Remote Access -- 2
    1 день left
    Верифіковано

    I need help setting up port forwarding on my router to enable remote access via VPN. Key requirements: - Configure port forwarding on my router - Ensure secure remote access for VPN - Provide detailed setup documentation Ideal Skills and Experience: - Networking expertise - Experience with port forwarding and VPNs - Knowledge of router configurations FLINT AND SLATE EE Network

    $181 Average bid
    $181 Сер. заявка
    30 заявки

    Saya mencari seorang administrator jaringan yang mahir mengelola Windows Server untuk menangani pemantauan dan pemeliharaan harian lingkungan server kami. Ruang lingkup pekerjaan: • Memantau performa layanan Windows Server—CPU, memori, disk, dan jaringan—serta menindaklanjuti anomali sebelum menjadi masalah. • Melaksanakan pemeliharaan rutin: instalasi patch keamanan, pembaruan fitur, pengecekan log, dan optimalisasi layanan. • Menyusun backup harian, memverifikasi keberhasilan restore, dan memastikan kebijakan retensi berjalan baik. • Menyiapkan sistem notifikasi otomatis (mis. Event Viewer, Performance Monitor, PowerShell script, atau solusi pihak ketiga) agar peringatan kritis segera tereskalasi. • Menyediakan laporan kesehatan mingguan da...

    $18 / hr Average bid
    $18 / hr Сер. заявка
    7 заявки
    Configurar VLAN y LACP DGS-1250-52X
    9 годин(-и) left
    Верифіковано

    Dispongo de un switch D-Link DGS-1250-52X y necesito que quede totalmente operativo con una estructura de VLAN con LACP • Configurar un LACP Activo-Activo de 4 puertos que sirva como uplink redundante y balanceado. • Verificar conectividad y desempeño (ping, tabla MAC, pruebas de throughput) asegurando que todo quede documentado para futuras ampliaciones. Considero el trabajo terminado cuando todas las VLAN intercambian tráfico según lo planeado y el grupo LACP muestre agregación estable sin errores.

    $150 Average bid
    $150 Сер. заявка
    17 заявки

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