Explore the world of networking with expert insights on routers, switches, and firewalls. This category is your go-to resource for troubleshooting tips, configuration guides, and practical skills to optimize and secure your network. Whether you’re a beginner or a seasoned IT pro, find step-by-step solutions to keep your systems connected and running smoothly.
In today’s high-performance enterprise networks, ensuring firewall redundancy and scalability is critical. Palo Alto firewalls offer two high-availability (HA) modes: […]
AA(Active/Active) vs AP(Active/Passive) Palo Alto Firewalls Read Post »
An issue where users accessing certain websites through a FortiGate explicit proxy (with the FortiGate CA certificate imported into client
Fixing Certificate Errors for Web browsing via FortiGate Explicit Proxy Read Post »
We recently encountered a perplexing issue with the explicit proxy configuration on our FortiGate 121G running FortiOS 7.4.7, specifically when
FortiGate Explicit Proxy Issue with FQDN Resolution to IPv6 (FortiOS 7.4.7) Read Post »
Introduction As networking professionals, we rely on tools like NetFlow and PCAP (packet capture) to monitor, troubleshoot, and secure our
I recently encountered an issue with the proxy chain function on a FortiGate 121G running FortiOS 7.4.7, and I wanted
FortiGate Proxy Chain Issue with FQDN Resolution (FortiOS 7.4.7) Read Post »
I’m troubleshooting an unstable IPsec VPN where one peer is behind NAT, using UDP 500/4500, with issues like random firewall
How it works of DPD (Dead peer detection) in ipsec VPN and Troubleshooting Read Post »
As a network administrator managing FortiGate firewalls, I’ve encountered several critical but unannounced issues with FortiOS 7.4.7 on the FortiGate
Enumeration is the process of querying a target system or network to extract specific details, such as: This phase comes
What is Enumeration? (CEH) Read Post »
Are you actively certified? Cisco U. has an exciting opportunity for you to keep your skills sharp and earn Continuing
Cisco: Review recording to earn cisco CE credit Read Post »
Introduction Deploying a Proxy Auto-Configuration (PAC) file to manage network traffic routing is a powerful way to control proxy usage
Configuration of PAC file for dynamic proxy selection Read Post »
Key Objectives Types of Footprinting Footprinting and Reconnaissance Techniques Here’s a breakdown of common methods and tools, aligned with CEH:
What is Footprinting and Reconnaissance? (CEH) Read Post »
In today’s digital world, protecting your online privacy and accessing unrestricted content is more important than ever. Whether you’re browsing,
How to access whatsapp, facebook when travelling to China? (Get your VPN in easy way) Read Post »
Renewing your Cisco Certified Internetwork Expert (CCIE) certification can be completely free by earning 120 Continuing Education (CE) credits through
Cisco: How to renew your CCIE for free? Read Post »
In network security and traffic management, router access-lists (ACLs) and Layer 7 firewalls (often next-generation firewalls, or NGFWs) are critical
Router ACLs vs. Layer 7 Firewalls: A Technical Comparison for cyber security Read Post »
Whether you’re just starting out in cybersecurity or looking to sharpen your hacking skills, having the right resources is key
Learning material for drive in cyber security (Useful link) Read Post »
Shodan, created by John Matherly in 2009, is a platform that crawls the internet to identify and catalog devices and
What is Shodan? A Security search engine other than google Read Post »
In enterprise cybersecurity, selecting optimal network detection and response (NDR) and security information and event management (SIEM) solutions requires a
When deploying a FortiGate firewall as an explicit web proxy with Active Directory (AD) authentication, you might need to forward
SQL injection (SQLi) is an attack where someone exploits a web app’s input fields to run unauthorized SQL queries on
What is SQL Injection? Read Post »
As a white-hat hacker, mastering Cross-Site Scripting (XSS) is essential. It’s a crafty vulnerability that exploits trust—both the trust users
Understanding Cross-Site Scripting (XSS) Read Post »
1. Networking Fundamentals Understanding how networks work is essential for identifying vulnerabilities in systems that communicate over them. 2. Computer
10 things your must know if you are ethical hacker Read Post »
If you’ve ever wondered how your data stays safe online—think passwords, bank details, or even your late-night chats—AES (Advanced Encryption
Inside AES Encryption: A Deep Dive into Round 1 Read Post »
Hey, future network trailblazer! If you’re itching to break into networking, the CCNA (Cisco Certified Network Associate) might be calling
If you’re looking to enhance your cybersecurity skills or test the security of your WordPress site, Kali Linux and Metasploit
Use metasploit to perform quick scan for your wordpress Read Post »
“The Nmap commands and techniques described here are for educational purposes only. Please test them exclusively on your own devices
What is Nmap? Powerful Network Scanning Tools Warning Read Post »
Backing up your Cisco router or switch configuration is critical for disaster recovery and network management. With the archive command
As a WordPress blogger running www.lazy-guy.xyz, I’ve always been curious about my site’s security. With cyber threats lurking around every
How I Scanned and Secured My WordPress Blog with WPScan Read Post »
When navigating the world of networking, terms like proxy server 8080, HTTPS, SFTP, and SOCKS often pop up. Each serves
Proxy Server 8080, HTTPS, SFTP, SOCKS: What’s the Difference? Read Post »
If you suspect someone’s secretly connecting to your computer (like a backdoor from malware or a hacker), the netstat command
How to Use netstat to Spot Backdoor Socket Programming (For General Users) Read Post »
Comparison Table of Public DNS Providers DNS Provider Primary DNS IPs Filters DNSSEC DNS over TLS (DoT) DNS over HTTPS
Best Public DNS Providers in 2025: IPs, Features, and Security Compared Read Post »
