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I need an expert to troubleshoot communication errors on a Siemens S7-1200 system. I'm specifically dealing with configuration issues that are causing communication errors. Key Requirements: - Extensive experience with Siemens S7-1200 - Strong troubleshooting skills, especially with configuration issues - Ability to diagnose and fix communication errors Ideal Skills: - Siemens PLC programming and configuration - Networking knowledge related to industrial automation - Problem-solving skills and attention to detail Looking for a freelancer who can quickly identify and resolve these issues to ensure smooth operation.

I am an experienced IT Specialist with expertise in Networking, Software & Mobile Application Development, Cyber Security, Ethical Hacking, and Systems Administration. I help businesses, universities, government agencies, and Internet Service Providers (ISPs) design, build, secure, and maintain reliable technology solutions. My professional services include: • Enterprise Network Design, Deployment, and Management • ISP Infrastructure Design and Billing Systems • Custom Web, Desktop, and Mobile Application Development • Cyber Security Assessments and Ethical Hacking • Network Security, Firewalls, VPNs, and Intrusion Prevention • Core IT Systems Administration and Digital Transformation • University Information Management Systems • Government Info...

I need a thorough ethical hacker to focus exclusively on the login and authentication layer of my live website. Your task is to discover and document any weakness that could let an attacker slip past the sign-in screen—brute-force risks, credential-stuffing avenues, insecure password reset flows, session fixation, you name it. Use whatever industry-standard tooling you prefer (Burp Suite, OWASP ZAP, Kali, custom scripts), combine it with manual probing, and follow OWASP Top 10 practices. Payment pages and general UI aren’t in scope this round, but if things go well I may open that up afterward. Deliverables • Penetration-test report detailing each finding, its risk rating, and clear remediation steps • Proof-of-concept payloads or scripts where a vulnerabili...

Why Cybersecurity Is Important in 2026 In today's digital world, almost everything we do depends on the internet. We use online banking, social media, digital payments, cloud storage, and smart devices every day. While these technologies make life easier, they also create opportunities for cybercriminals to steal personal information and money. This is why cybersecurity has become one of the most important fields in the world. Cybersecurity is the practice of protecting computers, networks, applications, and data from cyberattacks. These attacks can include hacking, phishing emails, ransomware, malware, and identity theft. A single successful attack can cause financial losses, damage a company's reputation, and expose sensitive customer information. Businesses of all sizes are...

There was a compromised file uploaded to my fivem server accidentally by one of my devs. After some careful digging we believe we've identified the source of the infection, and removed any signs of the spread it caused. (It had been appending code to files automatically. said code and js files were removed.) However now the server itself almost fully launches, but at the very end experiences some sort of sigsev crash error, creates a dump file, and then starts over ad infinitum. We've already tried updating to current artifacts, and reverting to older ones, nothing seems to work for that. We're seeking a developer who can come in, identify the issues with the crash, and maintain the root server files to the best of their ability to save us the hassle of needing to reasse...

We are seeking an experienced configuration engineer to develop production-ready OpenBullet and SilverBullet configs for automated testing workflows. The ideal candidate has hands-on experience chaining requests, handling captcha challenges, parsing dynamic tokens, and implementing robust key-check logic with minimal false positives. Scope of Work: - Build one or more tailored configs for a specific target endpoint (details to be shared upon engagement). - Optimize for speed, reliability, and low detection/ban rates, including comprehensive error handling. - Deliver finalized .opk / .svb files accompanied by a concise README covering: - Required inputs and variables - Custom wordlists or proxy requirements - Any modules, plugins, or external dependencies used Acceptance Criteria: Valida...

Our small office is expanding and I need a specialist who can get every workstation connected, secure, and running smoothly, then show the team how to make the most of Microsoft Office. Network scope – The current wired network serves several computers but drops connections and slows down file-sharing. I need the cabling, switches, and configuration checked, any bottlenecks fixed, and the whole setup documented so future changes are straightforward. Computer maintenance All desktops require a full health check: hardware repairs or upgrades where necessary, clean operating-system installs or updates, and a thorough sweep for viruses or malware. Once each machine is stable I want a clear hand-over note listing what was done and any parts replaced. Staff training After the tech...

Experiencing issues with SMTP mail delivery and MX record resolution for our dedicated server. Specifically, the IP address associated with our mail server is not resolving correctly, which is affecting outgoing and incoming mail flow. Details we do provide on our live team tool or anydesk Server Type: Dedicated Server (Germany/India/France – adjust as needed) Issue: MXToolbox shows resolution errors for the IP and MX records Impact: Emails are delayed or failing to deliver Requirement: Please verify DNS configuration, reverse DNS (PTR), and ensure proper SMTP setup for the IP. Ensure your DNS zone file has correct A, MX, and PTR records for the mail server IP. step-by-step checklist for fixing SMTP/MX resolution issues (DNS, PTR, SPF, DKIM, DMARC) so you can troubleshoot befo...

I am rolling out IBM QRadar across a hybrid environment and need an experienced SIEM engineer to own the full implementation with security monitoring as the overriding objective. The scope covers on-prem data centers and our public cloud footprint, so you’ll be aligning collectors, log sources, and network connectivity on both sides to feed the console seamlessly. Key deliverables • Production-ready QRadar installation (latest stable version) sized for our current event volume • End-to-end onboarding of network devices, servers, and application logs, including parsing, custom DSM tweaks, and EPS tuning • Use-case development for core monitoring scenarios, correlation rule fine-tuning, and baseline alerts • Validation testing that proves events from each s...

I need a Windows-savvy System Administrator who can be physically present at our Jakarta location for about two hours. The sole objective is to configure and verify a secure remote-in session so that our off-site team can take over the machine once you leave. The workstation runs Windows 10 Pro. Internet is in place; I just need you to confirm network settings, tweak the firewall if necessary, and prove that remote access (RDP, AnyDesk, TeamViewer—whichever fits our policy) works reliably before you head out. Deliverable • A fully functional, tested remote connection to the designated Windows machine, demonstrated on site. The visit can happen during regular business hours this week. If you’re already in Jakarta and can respond quickly, please share your earliest avai...

About ProviderNow ProviderNow is the healthcare platform you've always wished existed—and will actually use. We're redefining how people access healthcare by making high-quality care simple, transparent, and affordable. Rather than replacing insurance, ProviderNow helps individuals, families, employers, and organizations access quality healthcare without the complexity and limitations of traditional insurance. Our platform offers nationwide virtual care, transparent pricing, affordable pharmacy solutions, and an AI-powered healthcare guide that helps members navigate their healthcare journey with confidence. We're building a platform that employers, benefits organizations, healthcare companies, associations, membership organizations, staffing firms, unions, and commu...

I'm looking for a developer to create a Building Management System (BMS) for the savic-net G5 building. This system should be built on proprietary software. Key functionalities required: - Energy monitoring - HVAC control Ideal skills and experience: - Expertise in developing proprietary software - Experience in energy monitoring and HVAC control systems - Knowledge of building management technologies Please provide a portfolio with relevant experience.

I'm seeking a skilled digital forensics expert to assist with my project. Key Requirements: - Analyze digital devices (computers, mobile phones, external storage). - Recover data and find evidence. - Prepare findings for legal purposes. Ideal Skills: - Experience in data recovery. - Proficient with forensics tools and techniques. - Strong analytical and reporting skills. - Background in law enforcement or cyber security is a plus. Please provide past project examples and relevant certifications.

I need help setting up my new Lenovo Slim laptop and troubleshooting some issues. Specific tasks include: - Setting up and configuring OneDrive, as I'm encountering a strange access error message when trying to load documents. Ideal skills and experience: - Experience with Lenovo laptops and OneDrive - General troubleshooting expertise - Ability to connect and configure internet settings

I currently run a FLIR MPX DVR (model M3104ES) with four analogue cameras that I can only watch by plugging a monitor directly into the DVR. I’d like setup in two distinct ways: 1. Enable reliable remote access so I can log in from any laptop on my home network and from my phone when I’m away, both for live view and the ability to play back stored footage. 2. Add and configure two additional new IP cameras and manage everything through one piece of central software running on a separate computer. Storage of recordings can be on different hardware (on DVR for analog Camera and on QNAP-NAS disk for IP Cameras) but management of cameras and replay centrally with one software. 3. Configure all cameras for alerts with push email and text The central application has to provide thes...

I need an experienced hand to get a brand-new point-to-point Wide Area Network up and running from scratch. My goal is a clean, secure link between two sites that can carry voice, data, and future VPN traffic without hiccups. Here’s the situation: hardware is on-site and powered, public IPs are assigned, but nothing has been stitched together yet. I want the routers fully configured, routes verified, and the handoff ready for my team to monitor going forward. Deliverables • Complete router/switch configs (exported text files) • Visio or PDF topology diagram highlighting interfaces, IP blocks, and routing logic • Short run-book: step-by-step notes on how you brought the circuit up and the key commands to validate status Acceptance criteria • End-to-end p...

I need an experienced network-security professional to conduct an in-depth threat analysis of our cloud infrastructure. The environment spans several AWS accounts with VPC peering, Transit Gateway routing, and a mix of Kubernetes clusters and serverless workloads. Your job is to map likely attack vectors, evaluate existing controls, and clearly articulate the real-world risks we face. I will grant read-only access to relevant CloudTrail, GuardDuty, and VPC Flow Logs as well as diagrams of our current architecture. Feel free to weave in additional tooling such as Nmap, Nessus, Wireshark, Metasploit, or custom scripts—whatever produces the most accurate picture. Deliverables • Threat model highlighting assets, actors, and entry points • Evidence-backed risk ratings wi...

We are seeking a highly skilled, discreet, and expert Cyber Security Specialist / Internal Systems Auditor to monitor platform integrity, investigate staff activities, and ensure strict compliance with company policies. The ideal candidate will operate quietly to identify system abuses, fraudulent activities, and policy violations. Key Responsibilities Audit & Investigation: Actively monitor and investigate the activities of all staff members (from new hires to 20+ year veterans). Threat & Error Detection: Identify system errors, duplicate accounts, fake profiles, and malicious actors within the network. Account Actions: Permanently block and suspend accounts involved in unauthorized activities, including casino/gambling operations, harmful political agendas, or toxic/aggressive...

I’m looking to engage an experienced ethical-hacking professional who can quickly assess my organisation’s overall security posture and recommend—or perform—the most appropriate next steps. Because I haven’t yet narrowed the scope to a single service, I’m open to anything from a thorough penetration test and security audit to incident-response planning and ongoing threat monitoring. You’ll begin with a discovery call to clarify the current environment, critical assets, compliance requirements, and any known pain points. From there, I expect you to outline a concise plan of action, including milestones, reporting cadence, and the specific toolsets you intend to use (e.g., Metasploit, Burp Suite, Nessus, Wireshark or equivalents). Key deliverab...

Our organisation’s digital footprint has outgrown the piecemeal protections we put in place over the past few years, so it is time for a coordinated security overhaul. I want a seasoned cyber-security professional to look holistically at our environment, uncover weak points, and help us close them before they become incidents. Scope • Full audit of the current estate—on-prem servers, cloud services, publicly facing web components, internal network segments, and any API endpoints. • Clear, prioritised report of vulnerabilities with risk ratings and practical remediation steps. • Hands-on implementation or guidance for fixes (patching, hardening, access-control tweaks, WAF rules, etc.), followed by verification testing to confirm each issue is resolved. &b...

I need an Trainer with at least five years of hands-on VMware ESXi experience to run a series of practical, online sessions for my team. The participants already work with virtualisation at an intermediate level, so I expect you to dive straight into real-world practices rather than introductory theory. The focus of the course must cover everything from a clean ESXi install and host configuration, through day-to-day virtual-machine and resource management, right up to advanced networking and security techniques. Even though the format is lecture-based, I still want each talk grounded in live demonstrations; we have a fully functional ESXi environment on-site that you can connect to remotely and showcase each step in real time. By the end of the engagement I should have: • A st...

Hardware networking .....Detail-oriented IT professional with a certification in Hardware and Networking. Skilled in PC assembling, OS installation, and basic LAN/WAN troubleshooting. Eager to leverage foundational knowledge of TCP/IP, routers, and switches to support daily IT operations and resolve end-user issues efficiently.

Project Overview: We are looking for an expert, senior-level Enterprise Network Architect/Engineer to lead a multi-vendor project deployment, design review, and the production of final As-Built documentation. Our current infrastructure environment requires deep architecture alignment across modern software-defined networking (SDN), zero-trust security components, and centralized management fabrics. This is a critical infrastructure project requiring strict adherence to security compliance, high availability, and optimal traffic routing principles. Scope of Work: 1. Architecture & Design Review -Conduct a thorough review of the current network topologies, security zones, and high-level designs. -Identify potential bottlenecks, asymmetrical routing risks, and security gaps before act...

Our internal security team needs an external, red-team style penetration test focused exclusively on the network infrastructure. I want you to simulate real-world attacks against three key components—our firewalls, routers & switches, and enterprise-grade wireless networks—to see how quickly and effectively our blue team detects, contains, and responds. Scope • Engage the perimeter and internal segments behind our firewalls. • Enumerate and exploit misconfigurations on Cisco-class routers and layer-3 switches. • Probe the corporate and guest Wi-Fi environments, including roaming vulnerabilities and weak encryption scenarios. Primary objective The engagement is not just about finding vulnerabilities; the bigger aim is to pressure-test our incident-re...

Hi I will share the details with the shortlisted candidates. Thanks

Configure HG8120C XPON ONU to use LAN 1 as WAN port instead of GPON, to access Internet & VoIP Server on LAN port 2 in Routing mode bet Port1 & Port 2.

Job Description – Need Network Technician for VPN Routing Issue (WireGuard + GlobalProtect + SAP) I am using a router configured with WireGuard, which sets my public IP location to Milan. This part works correctly. I work for Accenture, and I also need to connect to my company VPN (GlobalProtect) to access SAP. Here is the issue: • When I connect to my router, my IP shows Milan as expected. • I can successfully connect to GlobalProtect while WireGuard is active. • But when I try to log into SAP, the connection never completes — it keeps loading without showing any error. • If I disable WireGuard, SAP works normally. • I need SAP to work while both WireGuard (on the router) and GlobalProtect (work VPN) are active at the same time. Goal I need a t...

I need a skilled developer to configure and manage an Impinj R700 reader for us. The primary use will be for writing CAP (Common Alerting Protocol) messages. Key Requirements: - Configure and manage the Impinj R700 reader - Develop CAP messages Ideal Skills and Experience: - Expertise in Impinj R700 or similar RFID technology - Experience with CAP and related protocols - Strong configuration and management skills - Ability to provide ongoing support post-setup Please only bid if you have relevant experience.

I want a thorough, professional security check on two devices—one Android and one iPhone. I have seen unexpected apps or activities, rapid battery drain, and the occasional suspicious pop-up, so I need to confirm whether either handset has been compromised and, if so, understand exactly how to fix it. I have never sideloaded software outside the official stores, but I still want everything verified. Your task is to run a full forensic-level audit: scan for malware or spyware, inspect system logs for unauthorized access, review current privacy and security settings, and highlight every vulnerability you uncover. Please work only under my explicit authorization and within all legal boundaries. Deliverables • A clear, step-by-step report explaining findings for both devices &bu...