Technical notes, commands, scripts and troubleshooting references
A structured technical reference portal for networking, MTU troubleshooting, printer support, Windows, Linux, scripts, tools and IT responsibilities.
Search by topic like ping, MTU, printer, Linux, PowerShell, Nginx, Windows, DNS, or scripts.
Deep guide for connectivity testing, MTU size, packet fragmentation, route path and packet loss checks.
ping 8.8.8.8 -f -l 1472
Useful commands for checking IP address, DNS resolution, gateway, DHCP and internet troubleshooting.
ipconfig /all
Repair Windows system files, fix image health, check disk and troubleshoot common Windows issues.
sfc /scannow
Commands for testing ports, checking services, event logs, processes and computer information.
Test-NetConnection google.com -Port 443
Check disk, RAM, uptime, IP address, services, logs and server health quickly.
df -h && free -h
Useful commands for testing Nginx configuration, reloading website, checking logs and adding SSL.
sudo nginx -t
Cloud basics, VM, storage, IAM, identity, DNS, networking, security and Microsoft 365 support notes.
Cloud | Azure | AWS | GCP | M365
Check printer IP, spooler service, print queue, driver issues, offline printer and network printer problems.
control printers
Download small scripts and reference files for network testing, Linux health checks and MTU notes.
network-test.ps1
Desktop support, infrastructure, cloud, Microsoft 365, trainer and system admin responsibility reference.
Support | Infra | Cloud | Trainer
Try searching: ping, MTU, printer, Linux, Nginx, PowerShell, DNS, Windows, scripts.