Network Security Jobs

I’m ready to bring a new workload onto Google Cloud and need the underlying network built properly from day one. The scope is strictly infrastructure setup—specifically VPC design and configuration—so I can plug my applications in without worrying about routing, security, or future scalability. Here’s what I expect you to handle: • Design a clean VPC layout with subnets aligned to dev, staging, and prod environments • Configure custom routes, firewall rules, and Cloud NAT where needed • Set up private service access for Google APIs, Cloud SQL, and other managed services I’ll add later • Implement basic IAM roles and service accounts for least-privilege access • Produce an architecture diagram plus step-by-step deployment notes...

I have an AudioCodes Mediant 2600 SBC that is still on its default settings and must be prepared for an upcoming omni-channel roll-out. The goal is to transform it into a production-ready edge device that can handle multiple real-time media streams and interconnect seamlessly with the rest of my communications stack. What I expect from you • A clean, secure base configuration built on the latest recommended firmware • Proper SIP trunk registration and routing logic for inbound-outbound traffic • Policy, codec and transcoding rules that support voice today and leave room for messaging or video tomorrow • TLS/SRTP certificates installed and tested end-to-end • Comprehensive validation: Wireshark or Syslog traces, call-flow screenshots and a short hand-over...

I have a CPPlus DVR already recording several cameras on-site. I want those feeds to be reachable from anywhere through a web browser, and I’d like to see multiple cameras on the screen at once. To keep things compact and low-power I will dedicate a Raspberry Pi 4 Model B to handle the job. Here is what I need you to do: • Configure the Raspberry Pi so it bridges the DVR to the internet securely and reliably, exposing a browser-based interface that shows at least a quad-view of the live feeds. • Set up any required services—whether that means Nginx, RTSP to WebRTC conversion, or another lightweight solution—so users can log in remotely without installing extra software. • Harden the Pi (firewall, strong credentials, SSL certificate) and document the...

I need an experienced FRITZ!Box/IPSec VPN specialist to set up a rock-solid IPSec tunnel between my FRITZ!Box router and AlmaLinux 8 + SSH based VPS for secure remote access to my home network from anywhere. Current setup: 1. FRITZ!Box connected to internet through a 4G USB modem with mobile provider's CGNAT 2. Blank VPS AlmaLinux 8 + SSH Scope of work: Configure a stable fritzbox-to-VPS IPSec tunnel between the FRITZ!Box and the VPS

My Windows Server IIS installation has begun dropping offline repeatedly over the last few days, and each outage takes the whole site with it. I need the service stabilised, the underlying cause identified, and a clear set of preventive measures put in place. Key points of the task • Scope: Troubleshooting and ongoing maintenance of an existing IIS instance that is suffering downtime (first noticed less than a week ago). • Environment: Windows Server with IIS—no fresh installation required; this is a live production machine. • Typical work involved: analyse system and IIS logs, review bindings, application pools, event viewer entries, and any relevant Windows updates; apply configuration fixes; document exactly what was changed. • Deliverables: &nda...

I need a tunneling server configured so that all traffic is routed through a reliable VPN connection. My preference is to run the tunnel over a standard VPN protocol; however, if you feel SSH or even a SOCKS‐based approach would solve the same problem more effectively in my environment, I’m open to hearing why and adjusting the build. Here’s what I expect: • A clean server deployment (Linux or Windows—your call as long as licence costs stay zero) with a fully operational VPN service. • Clear, copy-and-paste-ready commands or GUI walkthroughs so I can add, revoke or monitor users without breaking anything. • A quick test plan proving that data is really flowing through the tunnel and that DNS leaks are impossible. Hand the whole thing over as soon as y...

Our Azure Virtual Desktop deployment become sluggish time to time. I want the environment to feel as responsive as a local desktop. Your task is to trace the bottlenecks—whether they stem from host sizing, storage throughput, profile management, graphics acceleration, or network path—and apply targeted fixes. I can walk you through current setup using shared screen app. The work can be carried out remotely with shared screen using tools from freelancer or Anydesk.

I need a seasoned ethical hacker to run a full black-box penetration test against my own website. You will have no prior credentials or internal access; your job is to probe the public-facing application exactly as an external attacker would. Primary focus areas • SQL injection • Cross-site scripting (XSS) • Broken authentication I can supply formal, written authorization before any testing begins, ensuring everything is 100 % legal and above board. Please follow recognised methodologies such as OWASP Top 10, using tools you are comfortable with—Burp Suite, OWASP ZAP, Kali, or similar—combined with manual verification. Deliverables I expect • Executive summary outlining overall risk posture • Detailed technical report for each finding (st...

I need a seasoned ethical hacker to uncover and clearly document every security weakness lurking in our mobile applications and the underlying network infrastructure. You will have formal authorisation to test, but there are a few boundaries: production customer data is off-limits and any denial-of-service style traffic must be kept to agreed-upon off-peak windows. Everything else inside the defined scope is fair game. During the engagement you are free to use the tools you prefer—Burp Suite, OWASP ZAP, Metasploit, Wireshark, custom scripts—so long as the final results are reproducible. Deliverables • A concise executive summary followed by a detailed technical report for both the mobile apps and network layers. • Proof-of-concept evidence (screenshots, request/...

I'm seeking a telecoms engineer to re-wire a private intercom and gate control system. All aspects of the system work but the wires have become rusted and need replacing. Day's work. London Blackheath

Our IT solutions company has been engaged to secure a commercial site with a new surveillance system. The job involves installing between six and ten cameras, split between indoor and outdoor areas, and integrating them into an NVR so the client can monitor all feeds over their existing network. Scope of work • Survey the premises with me on arrival to finalise camera positions. • Mount 6-10 cameras (mix of indoor domes and outdoor weather-rated units). • Run and neatly fasten all cabling (Cat-6 and power where required) back to a single equipment rack. • Configure the NVR, assign IPs, set recording schedules, and enable remote viewing. • Optimise each camera’s angle, focus, night-vision settings, and motion alerts. • Demonstrate live and re...

I need a fully scripted, repeatable way to deploy WireGuard on Linux and bind it to my existing LDAP directory for user authentication. Everything should be handled through a single Bash script: installation, key generation, service configuration, firewall tweaks, and the LDAP-backed access control logic. The environment is purely Linux; I’ll run the script on fresh servers spun up from time to time, so hard-coding a specific distribution won’t work. Please detect the distro at runtime (e.g., `cat /etc/os-release`) and branch gracefully for the usual package managers (apt, dnf, yum). Because the LDAP flavour can vary between sites, keep the LDAP integration parameters (host, base DN, bind DN, TLS choice, etc.) externalised in a simple config file that the same script consumes...

I need a fresh Amazon EC2 instance spun up with a Windows Server AMI, fully patched, secured, and ready for RDP access. Once the instance is online I will let you know which applications need to go on it, but please be prepared to handle common Windows installs such as IIS, MSSQL or Visual Studio should I confirm those. Key tasks • Select an appropriate Windows AMI, size it, and place it in the correct VPC and subnet. • Configure security groups, key pairs, and any IAM roles so that only the intended ports are open. • Enable and test Remote Desktop access. • Apply Windows updates and hardening best practices. • Install the software I specify after the server is running, verifying each service starts automatically and survives reboots. • Deliver ...

I need an expert to troubleshoot VMware vCenter. My current SSL certificate has expired and requires renewal. Tasks include: - Generating a new SSL certificate - Installing the new SSL certificate Environment: VMware vCenter Server Appliance (vCSA) Ideal skills and experience: - Proficiency with VMware vCenter and vCSA - Experience in SSL certificate management - Ability to troubleshoot and resolve certificate-related issues

I have a BSNL fibre connection in Bangalore that already comes with a fixed public IPv4 address. When I’m in Chennai I connect my laptop through a 4G mobile hotspot, but the services I use for work must see the same Bangalore IP. To make that happen I need a full-tunnel VPN solution that I control end-to-end. Here is what I’m after: • Design and explain the best topology for routing all my laptop traffic through my Bangalore line, so every site and corporate firewall sees the static IP. • Set up and secure my own VPN server (OpenVPN, WireGuard or IPSec—whichever you feel suits the hardware/firmware limits of the BSNL router or a small Linux box I can place behind it). • Configure the BSNL router: port-forwarding, NAT and any firewall rules needed so t...

I am looking to purchase or acquire 100 GB of pro-level ethical hacking training materials specifically focused on network analysis with all attacks tutorial . The primary interest is in high-quality eBooks that provide in-depth learning within this niche. If you have collections or access to such resources that align with professional-level training, please get in touch with details about the content and how it addresses network analysis.

Vicidial is already live on our cloud server; what I need now is an on-site engineer in Hyderabad who can bridge it to a 32-port Dinstar GSM gateway sitting in our office. Your task is strictly configuration and testing—no fresh installs. Scope of work • Register the Dinstar gateway as a SIP trunk inside Vicidial, keeping a close eye on call-quality parameters and full compatibility with the gateway. • Analyse the current router, decide which ports must be opened, then set up forwarding so traffic reaches the cloud server cleanly. No predefined template exists, so you will determine the rules and apply them. • Run end-to-end test calls, troubleshooting the single audio problem we’ve seen so far: distorted sound. I expect clear audio on both legs before sign-off....

We are seeking a skilled and experienced VICIdial and VoIP engineer to set up a cloud-based call center solution. Current Setup: - A GSM/VoIP gateway (Dinstar). - No physical server at the moment. - Planning to purchase a suitable cloud-based Linux server (e.g., VPS) based on your recommendation. - AnyDesk access is available for remote configuration. Scope of Work: 1. Recommend the best cloud server provider and required specifications suitable for our needs. 2. Install and configure VICIdial and Asterisk on the cloud server. 3. Integrate the Dinstar gateway with the cloud server. 4. Provide detailed guidance on connecting the Dinstar gateway with our router/switch, including cable instructions. 5. Configure inbound and outbound calling. 6. Set up agent logins and ensure web access for ...

I need a thorough, legally-compliant security assessment carried out on my digital environment. The exact scope—whether web applications, mobile apps, network infrastructure, or a mix—will be finalised once we have an NDA in place, so please come prepared to advise on the areas you feel will yield the most value. You are free to employ black-box, white-box, or grey-box techniques; I welcome your professional recommendation on the approach that suits our situation best. Whichever method we settle on, the engagement must follow recognised standards (OWASP, NIST, or equivalent) and remain fully within the bounds of responsible disclosure. Deliverables expected: • Written engagement plan outlining agreed scope, methodology, and test schedule • Hands-on exploitation an...

I’ve just received a T-Mobile 5G Home Internet kit for my house and need an expert who can get it up and running quickly and correctly. The job covers three things in one visit: installing the gateway in the best spot for signal, walking me through the router configuration so it’s fully secured, and making sure all our household devices—phones, laptops, smart TVs, and a couple of smart-home gadgets—connect without a hitch. You’ll need to be comfortable finding the strongest 5G reception point indoors, updating firmware if the router prompts for it, and tweaking the basic Wi-Fi settings so every device sees a stable, high-speed connection. If issues pop up while pairing devices, I’d appreciate simple explanations so I can handle small changes myself late...

I need a seasoned security professional to perform an end-to-end audit of our custom web application and the public-facing site that supports it. The focus is firmly on discovering and documenting application-level vulnerabilities—SQL injection, XSS, authentication flaws, insecure APIs, misconfigured headers, anything that could slip past regular QA. Scope • Black-box and white-box testing of every user flow, admin panel, and API endpoint • Automated scanning with tools such as Burp Suite, OWASP ZAP, Nessus or equivalents, followed by manual verification • Review of server configuration files, access controls, and session management logic • Threat modelling to highlight realistic attack paths and business impact Deliverables 1. Full log set from all a...

Our infrastructure is ready for a major uplift: I am replacing a flat WatchGuard/Ubiquiti environment with a full Cisco Meraki hub-and-spoke SD-WAN. The topology is straightforward—one headquarters that will act as the primary hub, a DR site that will serve as a secondary hub, and four branch offices that will connect as spokes. Here is what I need from you: • Design a Meraki architecture that introduces proper VLAN segmentation, Auto-VPN, traffic shaping, and advanced security while mapping cleanly to the existing IP ranges. • Produce a configuration set for MX security appliances, MS access/distribution switches, and any required SFP or PoE considerations so the cut-over is as close to “plug and play” as possible. • Create and document a migrati...

I need to reproduce on Ubuntu what I currently run on Windows Server: every user connects through Apache Guacamole, is placed into a fresh, completely isolated Chromium session, and can work alongside other users on the same host without any crossover. Files the user downloads inside that browser must still be intercepted and forwarded automatically to my backend service—exactly the way it works now. Key details you should be comfortable with: • Platform: Ubuntu will be the base OS. • Access method: users will come in through a remote desktop client exposed by Guacamole, not a browser-based VNC or an SSH workflow. • Browser: stock Chromium only; no custom extensions are required at this stage. Behind the scenes I’m open to whichever mix of Linux namespaces...

I’m putting together a full-scale enterprise network for our organisation and need someone who can take the project from initial design through to a live, well-documented deployment. The brief is intentionally open because I want your expertise to guide the decisions on architecture, hardware brands (Cisco, Juniper, Aruba, Fortinet, etc.), routing protocols, redundancy, and security hardening. Here’s how I picture the engagement: • High-level and detailed network design that follows best practices for scalability, resilience, and segmentation • Configuration templates or scripts ready to drop into switches, routers, firewalls, and wireless controllers • Step-by-step implementation plan with a rollback strategy • Post-deployment testing results plus c...

I want you to make NMS software Network Monitoring system

need a steady flow of warm, qualified prospects for the Cybersecurity Services arm of my technology firm. My focus is strictly on IT Services—specifically network security assessments, threat monitoring, incident response, and compliance consulting—so every lead you deliver must have a real, current need for those cybersecurity solutions. Here’s what a successful engagement looks like: • Target profile: decision makers (C-level, IT managers, compliance officers) in small- to mid-sized companies that rely heavily on their networks but lack in-house security expertise. • Geography: primarily North America, but I’m open to other English-speaking markets if you have proven data. • Lead details required: company name, contact name, title, direct email,...

Project Title: Microsoft 365 Security Configuration (HIPAA-Oriented) – Solo Business Project Description: I am a solo business owner setting up a new Surface PC with Microsoft 365 Business, and I’m looking for someone experienced in securing Microsoft 365 environments to help configure it properly. My goal is to align with HIPAA security best practices (understanding this is not a certification), and to ensure my setup is secure, practical, and appropriate for handling sensitive information. I primarily use Outlook, OneDrive, and SharePoint. What I Need: Secure configuration of my Microsoft 365 environment and device Proper setup of authentication and access controls (e.g., MFA) Data protection measures (including encryption and secure file handling) Guidance on best practices...

I'm seeking an expert to resolve a login issue with SQL Server 2019. We transitioned from a trial of SQL Server 2018 to a licensed version. After entering the authorization code, we encountered an error stating "the server was not found or was not accessible." We've confirmed that the server and instance names are correct, and no network or firewall changes were made. Ideal skills and experience: - In-depth knowledge of SQL Server, particularly version 2019 - Experience with SQL Server licensing and authentication issues - Strong troubleshooting skills for connectivity problems - Familiarity with network configurations related to SQL Server Please provide a brief outline of your approach and relevant experience.

I need an experienced ethical hacker / cybersecurity professional to test my website for security vulnerabilities. The work must be legal, controlled, and limited only to my own website. Please check for issues such as: SQL injection XSS Login/security weaknesses File upload vulnerabilities Admin panel exposure WordPress/plugin issues, if applicable Server/header security SSL/HTTPS configuration Malware/backdoor checks General vulnerability report I need a written report showing: What vulnerabilities were found Risk level: low / medium / high / critical Proof of issue without damaging the site Clear steps to fix each issue Important: No destructive testing, no spam, no DDoS, no data deletion, and no testing outside my domain. Skills required: Ethical Hacking, Penetration Testing, Web...

I need production-ready configs for both OpenBullet and SilverBullet that will be used primarily for automated testing scenarios. You’ve worked with these frameworks before, so you already understand how to chain requests, handle captchas, parse dynamic tokens and build stable key-check logic without false positives. The project covers: • Building one or more configs tailored to my target endpoint (details shared in chat). • Optimising for speed, reliability and low ban-rate, with proper error handling. • Delivering the finished .opk/.svb files along with a short README that explains required inputs, custom wordlists or proxies and any modules/plugins used. Acceptance will be based on: 1. Successful test runs on my side that reproduce the expected output. ...

I already have a CentOS-based VPS running and need a clean, secure WireGuard deployment for a client-to-site setup. Only a handful of devices—no more than five—will be connecting, so the configuration can stay lean but must be solid enough for everyday remote access. Here’s what I expect: • Install the latest stable WireGuard packages on CentOS and enable them to start automatically after reboot. • Create the server interface, generate keys, and assign an internal VPN subnet. • Open and persist the required UDP port in firewalld (or iptables if you prefer) and enable IPv4 forwarding so traffic routes properly. • Produce ready-to-import client configuration files (or QR codes) for up to five devices, each with its own key pair. • Test con...

Vicidial is already live on our cloud server; what I need now is an on-site engineer in Hyderabad who can bridge it to a 32-port Dinstar GSM gateway sitting in our office. Your task is strictly configuration and testing—no fresh installs. Scope of work • Register the Dinstar gateway as a SIP trunk inside Vicidial, keeping a close eye on call-quality parameters and full compatibility with the gateway. • Analyse the current router, decide which ports must be opened, then set up forwarding so traffic reaches the cloud server cleanly. No predefined template exists, so you will determine the rules and apply them. • Run end-to-end test calls, troubleshooting the single audio problem we’ve seen so far: distorted sound. I expect clear audio on both legs before sign-off....

I’m looking for a tech-savvy professional who can diagnose and resolve the slow internet speeds on my network. The issue isn’t a full outage—pages eventually load, but streaming, video calls, and large downloads crawl. I’ve confirmed the problem persists across multiple devices, so it appears to be network-wide. Here’s what I need from you: • Run a structured troubleshooting session via remote tools (e.g., Zoom, TeamViewer, or your preferred platform). • Review my modem and router settings, firmware version, and channel/bandwidth configuration. • Guide me through speed tests and analyze the results to pinpoint bottlenecks—ISP, hardware, cabling, or Wi-Fi congestion. • Recommend and implement fixes: optimal DNS settings, QoS twe...

I have an existing web application that must be pulled apart and inspected from every angle so we can see exactly where it breaks. The assignment centres on software-level reverse engineering, with the single overriding goal of identifying security vulnerabilities in the code base and its runtime behaviour. Once we confirm your availability I will provide the full application bundle, test server images and any credentials you might need. Your analysis should combine static code inspection with dynamic testing: think Burp Suite for traffic interception, Wireshark or similar packet capture, plus any de-obfuscation or disassembly tools (IDA Pro, Ghidra, etc.) that help you drill into compiled assets. Please follow OWASP guidelines so results are mapped to familiar risk categories. Deliverab...

I’ve just received a T-Mobile 5G Home Internet kit for my house and need an expert who can get it up and running quickly and correctly. The job covers three things in one visit: installing the gateway in the best spot for signal, walking me through the router configuration so it’s fully secured, and making sure all our household devices—phones, laptops, smart TVs, and a couple of smart-home gadgets—connect without a hitch. You’ll need to be comfortable finding the strongest 5G reception point indoors, updating firmware if the router prompts for it, and tweaking the basic Wi-Fi settings so every device sees a stable, high-speed connection. If issues pop up while pairing devices, I’d appreciate simple explanations so I can handle small changes myself late...

I have a Cisco router that now boots straight into ROMmon. I’m on the console port and can interrupt the sequence, but the primary IOS image appears to be corrupted or missing. I need guidance to load a clean image, return the router to normal operation, and preserve the existing startup-config. What I need from you: • Exact ROMmon commands and sequence to transfer or locate a working IOS image (TFTP, USB, or XMODEM—whichever you recommend). • Steps to confirm the startup-config is still intact and will automatically load after the fix. • Precautionary actions so the configuration is not lost during flash cleanup or image replacement. • If necessary, instructions to capture a backup of the running or startup configuration over the console before any r...

Looking for an experienced iOS reverse engineer to analyze how a major social media app generates attestation tokens using Apple's App Attest framework (DCAppAttestService) Identify how the app builds and signs attestation tokens at the network layer (below NSURLSession)] Hook/capture the token generation flow on a jailbroken device (palera1n, iOS 15, Frida) Build a repeatable script that generates fresh tokens for use in API requests Device and environment already set up. Prior research and Frida scripts available as starting point.

Tengo entre 1 y 5 relojes ZKTeco conectados a ADMS y presentan un problema concreto: CAMBIO DE HORA INVIERNO/VERANO. Necesito a alguien que ya haya trabajado con estos equipos para: • Analizar la causa del desfase horario y verificar firmware, zona horaria y reglas de DST. • Aplicar la corrección por acceso remoto, de forma que el cambio se ajuste automáticamente Dispongo de acceso remoto al servidor ADMS y a los relojes, por lo que la intervención puede ser completamente online.

Saya mencari ahli yang dapat memberi saya konsultasi keamanan jaringan yang solid untuk lingkungan Perbankan dan Keuangan. Fokus utama saya adalah menilai postur keamanan saat ini, mengidentifikasi celah kritis, lalu merancang rencana mitigasi yang praktis dan siap diterapkan. Ruang lingkup singkat: • Meninjau arsitektur jaringan dan kebijakan akses yang sudah ada. • Melakukan analisis kerentanan tingkat jaringan serta pengujian penetrasi terbatas bila diperlukan. • Menyusun laporan risiko beserta rekomendasi prioritas (best practice, kepatuhan regulator, dan langkah cepat yang dapat diambil tim internal). • Sesi diskusi online untuk memaparkan temuan dan menjawab pertanyaan tim IT saya. Saya menghargai komunikasi jelas, dokumentasi terstruktur, dan pendekatan p...