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I run a mid-sized company with publicly exposed services and a growing user base. Before traffic spikes any further, I want an experienced ethical hacker to examine our network security posture—specifically how well we can withstand denial-of-service attacks. You’ll work with the current infrastructure, which consists of routers and switches at the core, a pair of next-generation firewalls, and several wireless access points that bridge internal teams to the production VLAN. I can provide topology diagrams, current ACLs, firewall policies, and live traffic captures as soon as we kick off. What I need from you is a practical, vendor-agnostic assessment that tells me exactly where the DoS weak spots sit and how to close them without disrupting day-to-day operations. Feel free to employ standard penetration-testing techniques, traffic replay, or lab-based DDoS simulation tools such as LOIC/HOIC, hping3, or commercial test suites—whatever gives the most accurate picture. Deliverables • A concise assessment report summarising findings, risk levels, and exploited vectors • A step-by-step mitigation plan covering configuration hardening, rate limiting, and monitoring improvements • Recommended IDS/IPS signatures or third-party services (Scrubbing centres, WAF rules, cloud-based DDoS protection) tailored to our size and budget • A 30-minute debrief call to walk the team through your recommendations and answer questions I’m ready to start immediately and can grant VPN access to a staging environment on request. Let me know your preferred testing windows, methodology outline, and the estimated timeframe for each milestone so we can lock in the schedule.
Project ID: 40551566
16 proposals
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Active 3 days ago
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16 freelancers are bidding on average $18 USD/hour for this job

As a seasoned professional with extensive experience in computer security and network administration, I'm confident that I am the perfect choice for your DoS Mitigation Consultation. Over my decade-long career, I've worked with companies of all sizes, planning and implementing network infrastructures that prioritize security without compromising on functionality or efficiency. My familiarity with an array of vendors including Cisco, Fortinet, Palo Alto, Checkpoint, and Pfsense among others lends me a well-rounded understanding of security measures and best practices unique to different systems. Equipped with this skillset, tackling an assessment of your company's network security posture and designing a robust mitigation plan will be second nature to me. In addition to my technical proficiency, my dedication to providing timely service and maintaining quality is reflected in my 24/7 availability, swift responses to client queries and my unwavering commitment to ensuring project deliverables are met. Let me provide you with a comprehensive report pinpointing vulnerable areas prone to DoS attacks while proposing practical solutions to mitigate these outages without hampering your daily operations. Choose me and rest assured knowing your network is in capable hands!
$20 USD in 40 days
7.2
7.2

Hello, I have 10 years of experience in Penetration testing to find out weak points or vulnerabilities in networks or systems for Dos or others attacks. I will perform pen test on your infrastructure as your would provide access and diagram. you will get a detailed report including findings, impact, remediation steps. initiate chat with me to quick start and discuss.
$10 USD in 40 days
6.4
6.4

From one security professional to another, let me assure you that I understand the dire consequences a DoS attack can have on a business—especially as it grows and attracts more unwanted attention. That's exactly why I specialize in what I do: not just identifying weak spots but also remediating them effectively. My extensive experience in vulnerability assessments and penetration tests, using top tools like Burp Suite, Nessus, and Acunetix, equips me with the skills needed to provide a comprehensive examination of your network security posture. My focus is not only on finding vulnerabilities but also on putting solutions into practice. And I'm confident in my work because of the success stories behind me —my exploits have uncovered significant flaws even when automated scanners failed. Considering your request for a concise assessment report and action plan, know that detail-oriented yet accessible documentation is one of my strengths. The report would offer clear insights into the risk levels and vectors exploited, while the step-by-step mitigation plan would provide practical ways to address each issue without affecting day-to-day operations.
$25 USD in 40 days
5.5
5.5

Hi, I’m excited to assist with your DoS mitigation assessment and network security review. With 16+ years of experience in Cybersecurity, Network Security, Infrastructure, and VAPT, along with CISA certification, I can provide a practical, vendor-agnostic evaluation of your environment and identify potential denial-of-service weaknesses before they impact business operations. How I Can Help • Review network topology, firewall policies, ACLs, and traffic captures • Assess exposure to DoS/DDoS attacks across routers, switches, firewalls, and wireless infrastructure • Conduct controlled security testing and traffic simulation in a safe staging environment • Identify attack vectors, bottlenecks, and configuration weaknesses • Recommend mitigation strategies including rate limiting, firewall tuning, IDS/IPS improvements, WAF policies, and DDoS protection services Deliverables • Detailed assessment report with risk ratings and findings • Actionable mitigation roadmap with implementation guidance • Tailored recommendations based on your budget and infrastructure • 30-minute debrief session to review findings and answer questions I can start immediately and would be happy to discuss the testing methodology and timeline. Best regards, SHD
$15 USD in 40 days
5.3
5.3

Your need for proactive DoS mitigation aligns perfectly with my recent engagement where I architected and implemented a multi-layered defense strategy for a SaaS provider, reducing their susceptibility to volumetric and application-layer attacks by over 85% before a major product launch. I understand the critical importance of securing publicly exposed services for a growing user base. My approach will involve a comprehensive assessment of your current network infrastructure, starting with a thorough review of provided topology diagrams, ACLs, and firewall policies. I will then conduct targeted network reconnaissance and vulnerability scanning, followed by controlled, simulated DoS/DDoS attacks using tools like `hping3`, `Slowloris`, and `Nmap` scripts to identify weak points. This will be complemented by traffic analysis of provided captures to understand normal behavior and anomalies, and I will propose specific firewall rule tuning, rate limiting configurations, and potentially network segmentation adjustments to enhance resilience. To best tailor the mitigation plan, could you elaborate on any specific DoS vectors you've encountered or are most concerned about? Additionally, what are your current monitoring and alerting capabilities for network anomalies? I’m available for a brief call to discuss how I can help safeguard your services.
$15 USD in 7 days
4.5
4.5

Greetings! I can assess your network's DoS resilience by reviewing your topology, ACLs, and firewall policies, then running controlled traffic simulations with hping3 and similar tools to expose weak spots, and deliver a full findings report with a prioritised mitigation plan covering rate limiting, IDS/IPS signatures, and cloud scrubbing options suited to your scale. Any specific testing windows or staging environment constraints I should plan around?
$13 USD in 7 days
4.5
4.5

We at Offensium Vault Private Limited (ISO 27001:2022 & ISO 9001:2015) can perform a comprehensive network resilience and DoS security assessment to identify weaknesses before they impact your production environment. Approach • Review of network architecture, firewall policies, ACLs, routers, switches, VLAN segmentation, and wireless infrastructure • Assessment of DoS/DDoS resilience, rate limiting, traffic filtering, and firewall/WAF configurations • Safe, controlled testing using non-disruptive methodologies aligned with NIST, PTES, and OWASP principles • Analysis of traffic captures and validation of attack paths without affecting production availability Tools Nmap, Wireshark, hping3, Nessus, Burp Suite, Metasploit, and controlled traffic simulation tools where appropriate. Deliverables • Executive summary with risk ratings and identified attack vectors • Detailed mitigation plan covering hardening, rate limiting, IDS/IPS tuning, and monitoring improvements • Recommendations for WAF, cloud DDoS protection, and scrubbing services based on your environment and budget • 30-minute debrief session to review findings and answer technical questions Timeline 3–5 business days for assessment and reporting, depending on the environment size. We follow strict confidentiality, can work under NDA, and are ready to begin immediately once access and the testing window are confirmed.
$12 USD in 40 days
3.6
3.6

Hello, I’m a Cyber Security Engineer with 3+ years of experience in network security, penetration testing, and infrastructure security assessments. I can perform a comprehensive DoS resilience assessment of your environment, identifying weaknesses across your routers, switches, firewalls, wireless infrastructure, ACLs, and network configurations without disrupting production operations. My assessment will include controlled testing, configuration reviews, traffic analysis, and validation using industry-standard tools such as Nmap, hping3, Burp Suite, Wireshark, Metasploit, and other approved security tools. I will evaluate rate limiting, firewall policies, IDS/IPS effectiveness, network segmentation, and monitoring capabilities to identify potential DoS attack vectors. You will receive a professional report with risk ratings, proof of findings, prioritized mitigation recommendations, configuration hardening guidance, monitoring improvements, and recommendations for DDoS protection services where appropriate. I also include a 30-minute debrief session to review the findings and answer your team's questions. I can start immediately, work within your approved testing windows, and deliver a thorough assessment with clear, actionable recommendations.
$12 USD in 40 days
2.6
2.6

As a seasoned full-stack developer and security expert, I am excited to get your network security up to par. My expertise with modern web technologies, mobile frameworks, and CMS platforms will be invaluable in identifying potential weak spots and formulating effective mitigation strategies tailored to your infrastructure. I have significant experience working with different databases, including optimizing and managing them for peak performance, which will be useful when examining your network in detail. My understanding of the latest web application vulnerabilities and proficiencies in API design and third-party services also allows me to recommend specific IDS/IPS signatures or third-party services that best align with your size and budget. Additionally, my ability to work efficiently while maintaining utmost communication ensures that we will identify And fix any risk as quickly as possible without disrupting your day-to-day operations. On completion, I will deliver an exhaustive report summarizing the findings, associated risk levels, exploited vectors along with a step-by-step mitigation plan for configuration hardening, rate limiting and monitoring improvements.
$8 USD in 40 days
2.4
2.4

Hello, how are you doing? I have considerable experience assessing network security posture and DoS resilience across core routers, switches, firewalls, and wireless bridging setups, with practical, vendor-agnostic recommendations and clear remediation steps. I’ve deployed multiple projects where I reviewed ACLs, firewall policies, and live traffic to pinpoint weak spots, then delivered concise risk-based reports and actionable mitigation plans. I can work with your topology diagrams, provide a phased testing approach, and deliver a 30-minute debrief to walk your team through findings. Let me know further information, if interested.
$15 USD in 5 days
0.8
0.8

I understand you need an experienced ethical hacker to assess your network's resilience against denial-of-service attacks, focusing on your existing infrastructure of routers, switches, next-generation firewalls, and wireless access points. I previously identified and helped remediate a critical DoS vulnerability in a similar enterprise network, increasing uptime by over 20% during peak load. My approach will involve a thorough review of your provided topology diagrams, ACLs, and firewall policies. I will then conduct targeted DoS simulation tests using tools like `hping3` and `slowhttptest` against your publicly exposed services, analyzing traffic captures with Wireshark to pinpoint weaknesses. The deliverable will be a detailed report outlining specific attack vectors, their impact, and actionable mitigation strategies, including recommended firewall rule adjustments and potential load balancing configurations. Given the focus on DoS mitigation, what specific types of DoS attacks (e.g., volumetric, protocol, application layer) are you most concerned about preventing? Ready to start as soon as you confirm scope.
$15 USD in 7 days
0.0
0.0

Hello, I am a Cyber Security Specialist and Ethical Hacker with experience in penetration testing, vulnerability assessment, and website security. I can help you identify vulnerabilities and provide a detailed security report with solutions. I am ready to start immediately. Best regards, Mahedi Hassan
$12 USD in 50 days
0.0
0.0

Hi, Your project aligns well with my background in network security and penetration testing. I can assess your infrastructure for DoS/DDoS weaknesses using a combination of manual analysis and controlled testing in an authorized environment. My approach focuses on identifying bottlenecks, firewall and ACL misconfigurations, rate-limiting gaps, and weaknesses in network segmentation without affecting normal business operations. I'll provide a clear report with risk ratings, technical findings, and practical mitigation steps covering firewall hardening, IDS/IPS recommendations, monitoring improvements, and DDoS protection options that fit your environment and budget. I'm also happy to walk your team through the findings during a debrief session and answer any questions. I'm available to start immediately and can work around your preferred testing window. Once I review the network topology and scope, I'll provide a detailed timeline and keep you updated throughout the engagement.
$12 USD in 40 days
0.0
0.0

Hello, Your project is exactly the kind of security assessment I enjoy working on. I understand you're looking for a practical, vendor-agnostic evaluation of your infrastructure to identify DoS/DDoS weaknesses and provide actionable recommendations without disrupting normal operations. My approach will include: • Reviewing your network topology, firewall policies, ACLs, VLAN segmentation, and traffic captures. • Conducting controlled testing in your staging environment using industry-standard methodologies to safely assess resilience. • Evaluating firewall configurations, rate limiting, IDS/IPS effectiveness, and monitoring capabilities. • Identifying attack vectors, bottlenecks, and configuration gaps. You'll receive: ✓ A concise report with findings, risk ratings, and prioritized remediation steps. ✓ A step-by-step mitigation plan covering hardening, rate limiting, and monitoring improvements. ✓ Recommendations for IDS/IPS tuning, WAF rules, and cost-effective DDoS protection services tailored to your environment. ✓ A 30-minute debrief to review findings and answer your team's questions. I can start immediately, communicate clearly throughout the engagement, and provide a detailed timeline after reviewing your documentation. My focus is delivering practical recommendations your team can implement with minimal operational impact. I look forward to discussing your project.
$50 USD in 20 days
0.0
0.0

Dehradun, India
Member since Feb 6, 2026
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