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🐧 MODERN LINUX NETWORK TROUBLESHOOTING – MADE SIMPLE!

Whether you’re using Ubuntu, Debian, Fedora, Arch, or RHEL-based systems, this light-theme infographic walks you through modern Linux networking commands step by step — from checking IPs and routing to DNS, NetworkManager, and packet capture 🌐💻

🐧 Modern Linux Network Troubleshooting Guide
Works on Ubuntu 20.04+, Debian 11+, RHEL/CentOS Stream, Rocky, Fedora, Arch

1️⃣ CHECK NETWORK INTERFACES & IP ADDRESS
Copy code
Bash
ip addr show
Purpose:
Shows IP addresses (IPv4/IPv6)
Confirms interface is UP
Copy code
Bash
ip link show
Purpose:
Checks physical/logical interface state (UP/DOWN)

2️⃣ CHECK DEFAULT GATEWAY &...

MacOS TROUBLESHOOTING & REPAIR COMMANDS 🍎🛠️

Having issues with your Mac? These essential Terminal commands help you diagnose system problems, repair disks, fix network issues, check battery health, and resolve app crashes like a pro. Perfect for MacBook users, IT students, and technicians.

🧪 SYSTEM DIAGNOSTICS
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Bash
system_profiler SPSoftwareDataType
log show --predicate 'eventMessage contains "error"' --last 1h

🧹 DISK & FILE SYSTEM REPAIR
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Bash
diskutil verifyDisk disk0
diskutil repairDisk disk0
diskutil verifyVolume /
diskutil repairVolume /
🔹 (Use Recovery Mode ⌘ + R if disk is in use)

🧠 MEMORY & CPU TROUBLESHOOTING
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Bash...

💻 Fix Wi-Fi Connection Issues in Windows!
Getting the dreaded “Can’t connect to this network” message? Try these quick troubleshooting steps:
✅ 1. Restart your PC and Router – Simple but effective!
✅ 2. Forget and Reconnect to the Network – Go to Wi-Fi settings → Select your network → Click Forget, then reconnect.
✅ 3. Run Network Troubleshooter – Settings → Network & Internet → Status → Network Troubleshooter.
✅ 4. Update Network Drivers – Device Manager → Network adapters → Update driver.
✅ 5. Reset Network Settings – Settings → Network & Internet → Advanced network settings →...

🪟 WINDOWS 11 LOGIN TROUBLESHOOTING GUIDE

Can’t sign in to your Windows 11 PC? This easy, official guide helps you fix common login issues without bypassing security — safe for home and business use 💻🔐

🪟 Windows 11 Login Troubleshooting Guide
(No Password Bypass – Safe & Official Methods)

🔍 1️⃣ CHECK KEYBOARD & INPUT ISSUES
Make sure Caps Lock is OFF
Check correct keyboard language/layout
Try On-Screen Keyboard (Accessibility icon)

🔑 2️⃣ TRY OTHER SIGN-IN OPTIONS
Select Sign-in options
Try PIN / Picture password
Disconnect external keyboard and try again

🌐 3️⃣ MICROSOFT ACCOUNT LOGIN ISSUES
Ensure internet connection...

MacOS TROUBLESHOOTING & REPAIR COMMANDS 🍎🛠️

Having issues with your Mac? These essential Terminal commands help you diagnose system problems, repair disks, fix network issues, check battery health, and resolve app crashes like a pro. Perfect for MacBook users, IT students, and technicians.

🧪 SYSTEM DIAGNOSTICS
Copy code
Bash
system_profiler SPSoftwareDataType
log show --predicate 'eventMessage contains "error"' --last 1h

🧹 DISK & FILE SYSTEM REPAIR
Copy code
Bash
diskutil verifyDisk disk0
diskutil repairDisk disk0
diskutil verifyVolume /
diskutil repairVolume /
🔹 (Use Recovery Mode ⌘ + R if disk is in use)

🧠 MEMORY & CPU TROUBLESHOOTING
Copy code
Bash...

🐧 MODERN LINUX NETWORK TROUBLESHOOTING – MADE SIMPLE!

Whether you’re using Ubuntu, Debian, Fedora, Arch, or RHEL-based systems, this light-theme infographic walks you through modern Linux networking commands step by step — from checking IPs and routing to DNS, NetworkManager, and packet capture 🌐💻

🐧 Modern Linux Network Troubleshooting Guide
Works on Ubuntu 20.04+, Debian 11+, RHEL/CentOS Stream, Rocky, Fedora, Arch

1️⃣ CHECK NETWORK INTERFACES & IP ADDRESS
Copy code
Bash
ip addr show
Purpose:
Shows IP addresses (IPv4/IPv6)
Confirms interface is UP
Copy code
Bash
ip link show
Purpose:
Checks physical/logical interface state (UP/DOWN)

2️⃣ CHECK DEFAULT GATEWAY &...

🪟 WINDOWS 11 LOGIN TROUBLESHOOTING GUIDE

Can’t sign in to your Windows 11 PC? This easy, official guide helps you fix common login issues without bypassing security — safe for home and business use 💻🔐

🪟 Windows 11 Login Troubleshooting Guide
(No Password Bypass – Safe & Official Methods)

🔍 1️⃣ CHECK KEYBOARD & INPUT ISSUES
Make sure Caps Lock is OFF
Check correct keyboard language/layout
Try On-Screen Keyboard (Accessibility icon)

🔑 2️⃣ TRY OTHER SIGN-IN OPTIONS
Select Sign-in options
Try PIN / Picture password
Disconnect external keyboard and try again

🌐 3️⃣ MICROSOFT ACCOUNT LOGIN ISSUES
Ensure internet connection...

🔥 18 Essential CMD Commands Every Windows User Should Know!
Boost your tech skills with these powerful Windows commands 💻⚡
👇 Full list below 👇
1️⃣ dir — See Everything in a Folder
Syntax: dir
Example: dir C:\Users\Public
2️⃣ copy — Duplicate Files Instantly
Syntax: copy
Example: copy notes.txt D:\Backup\
3️⃣ ipconfig — Check Your Network Info
Syntax: ipconfig
Example: ipconfig /all
4️⃣ ping — Test Your Internet Connection
Syntax: ping
Example: ping google.com
5️⃣ chkdsk — Repair Disk Problems
Syntax: chkdsk /f
Example: chkdsk C: /f
6️⃣ net user — Manage User...

MODERN & ADVANCED Windows 11 keyboard shortcuts 🚀
(These are real productivity shortcuts used by power users)

🧠 SYSTEM & WINDOW CONTROL (NEW / MODERN)
Win + X → Power User Menu
(Quick access to Terminal, Device Manager, Disk Management)
Win + Z → Snap Layouts (Windows 11 feature)
Perfect window snapping layouts
Win + A → Quick Settings
Wi-Fi, Bluetooth, Sound, Brightness
Win + N → Notifications panel
Win + W → Widgets panel

⚡ SPEED & MULTITASKING
Win + Tab → Task View + Virtual Desktops
Create / switch desktops
Win + Ctrl + D → New virtual...

HERE ARE HIDDEN AND POWERFUL RUN COMMANDS

1️⃣ System Tools & Utilities
msinfo32 → System Information
Shows full system specs (CPU, RAM, OS version, etc.)
winver → Windows Version
Displays your Windows version/build info.
devmgmt.msc → Device Manager
Manage all your hardware devices (drivers, etc.)
diskmgmt.msc → Disk Management
Manage your hard drives, partitions, and disk formats.
compmgmt.msc → Computer Management
Access Event Viewer, Services, Disk Management, etc.

2️⃣ Network & Internet
ncpa.cpl → Network Connections
Quick access to your network settings.
control netconnections → Network Connections
Another shortcut to access the network settings.
cmd /k ipconfig → Display Network...