What are cryptography?
Cryptography is the art of securing communication, transforming readable data into something unreadable to protect it from prying eyes. Let’s […]
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Crypto, Networking
Networking
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.
Coding, Networking, python
Socket Programming in Python: Build a Client-Server Chat
What’s Socket Programming? Sockets are endpoints for communication—your app’s way of saying, “Hey, let’s talk!” Python’s socket library makes it
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Networking, Threat & Vulnerability
How hacker get your access, xss
IntroductionImagine logging into your bank account, shopping online, or scrolling through social media—only to have your personal data stolen without
How hacker get your access, xss Read Post »
Networking, Threat & Vulnerability
SQL Injection basic concept
What’s SQL Injection? Imagine my blog has a login box—username and password. Behind the scenes, it’s talking to a database
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Networking, Threat & Vulnerability
Understanding DoS and DDoS Attacks
Hey there, tech wanderers! Welcome back to Lazy Guy’s Tech Hub at https://www.lazy-guy.xyz/. Today, we’re diving into the wild world
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Networking, Threat & Vulnerability
Spot fake email, stay alert
How to Spot a Phishing Email Like a Lazy Pro Published on March 09, 2025 by Lazy Guy Phishing
Spot fake email, stay alert Read Post »
Cisco, Networking
Config cisco router NAT to access internet
Teaching Guide: How to Configure Cisco Router NAT to Access the Internet Level: Beginner (Zero IT Knowledge) What is Cisco
Config cisco router NAT to access internet Read Post »
Cisco, Networking
Learning cisco ospf start from zero
Teaching Guide: Configuring OSPF with Authentication on a Cisco Router Level: Beginner (Zero IT Knowledge)Topic: Basic OSPF in Area 0
Learning cisco ospf start from zero Read Post »
Networking
How SSL/TLS Works and HTTP not Secure
Hey there, Lazy Guy readers! If you’ve ever noticed that little padlock next to www.lazy-guy.xyz in your browser, you’ve seen
How SSL/TLS Works and HTTP not Secure Read Post »
Networking
HTTP/1.1 vs. HTTP/2 vs. HTTP/3 Explained
HTTP Unveiled: Exploring HTTP/1.1, HTTP/2, and HTTP/3 in Detail Welcome to another tech dive at Lazy Guy’s blog! Whether you’re
HTTP/1.1 vs. HTTP/2 vs. HTTP/3 Explained Read Post »
Cisco, Networking
Cisco switch trunk and access port
The Cisco Catalyst 9200 series is a powerful line of switches designed for enterprise networks, offering robust features like VLAN
Cisco switch trunk and access port Read Post »
Networking, Threat & Vulnerability
How Ransomware Works: From Phishing Email
Ransomware is a type of malicious software (malware) designed to encrypt files or lock devices, holding them hostage until a
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Cisco, Networking
Cisco router Qos – CBWFQ
Mastering Cisco Router QoS: A Deep Dive into CBWFQ and Key Concepts Quality of Service (QoS) on Cisco routers is
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Automation, Networking
Automating Cisco Switch Config Backups with Ansible
Image: Managing network gear like Cisco switches gets easier with automation. (Source: Unsplash) Why Automate Switch Backups? Backing up Cisco
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Difference between MTU, tcp-adjust-mss and PMTUD
As a Cisco network engineer, you’re no stranger to chasing down application issues—SSH stalling, HTTP timing out, or file transfers
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