Windows Command for Network Engineer

Wireless Networking Cheat Sheet

Wireless Standards

- 802.11a: 5 GHz, up to 54 Mbps, shorter range.
- 802.11b: 2.4 GHz, up to 11 Mbps, longer range.
- 802.11g: 2.4 GHz, up to 54 Mbps, backward compatible with 802.11b.
- 802.11n: 2.4/5 GHz, up to 600 Mbps, uses MIMO technology.
- 802.11ac: 5 GHz, up to 3.46 Gbps, wider channels and MU-MIMO.
- 802.11ax (Wi-Fi 6): 2.4/5 GHz, higher efficiency and capacity.

Common Wireless Terms

- SSID: Service Set Identifier, the name of the wireless network.
- BSSID: Basic Service Set Identifier, the MAC address of the access point.
- WPA/WPA2/WPA3: Security protocols for wireless networks.
- Channel: The frequency used for communication, often overlapping in the 2.4 GHz band.
- MIMO: Multiple Input Multiple Output, technology that uses multiple antennas to improve performance.

Wireless Security Protocols

- WEP: Wired Equivalent Privacy, outdated and insecure.
- WPA: Wi-Fi Protected Access, improved security over WEP.
- WPA2: Enhanced security, uses AES encryption.
- WPA3: Latest security protocol, offers stronger encryption and protection against brute-force attacks.

Wireless Configuration Commands (Windows)

- Show available Wi-Fi networks:
  netsh wlan show networks

- Connect to a Wi-Fi network:
  netsh wlan connect name=""

- Disconnect from a Wi-Fi network:
  netsh wlan disconnect

Wireless Troubleshooting Commands

- Ping the access point:
  ping 

- Check signal strength:
  netsh wlan show interfaces

- View wireless network properties:
  netsh wlan show profile "" key=clear

Common Wireless Issues

- Weak signal: Check distance from the access point, obstacles, and interference.
- Connection drops: Update drivers, check for interference, and signal strength.
- No internet access: Verify DHCP settings, check ISP connection, and router status.

Best Practices for Wireless Networking

- Use WPA3 for better security.
- Select less crowded channels (1, 6, 11 in 2.4 GHz).
- Position access points centrally to optimize coverage.
- Limit SSID broadcasting for sensitive networks.
- Regularly update firmware on access points and routers.

Windows Command Cheat Sheet for Network Engineers

Basic Networking Commands

- Check IP configuration:
  ipconfig

- Release IP address:
  ipconfig /release

- Renew IP address:
  ipconfig /renew

- Display current TCP/IP connections:
  netstat -a

- Show routing table:
  route print

Network Diagnostics

- Ping a host:
  ping 

- Trace the route to a host:
  tracert 

- Check DNS resolution:
  nslookup 

- Check network statistics:
  netstat -s

Network Share and File Commands

- List shared folders:
  net share

- Map a network drive:
  net use : \\\

- Disconnect a network drive:
  net use : /delete

Firewall Configuration

- Check firewall status:
  netsh advfirewall show allprofiles

- Allow a program through the firewall:
  netsh advfirewall firewall add rule name="" dir=in action=allow program=""

- Block a program:
  netsh advfirewall firewall add rule name="" dir=in action=block program=""

Wi-Fi Commands

- Show Wi-Fi profiles:
  netsh wlan show profiles

- Connect to a Wi-Fi network:
  netsh wlan connect name=""

- Disconnect from a Wi-Fi network:
  netsh wlan disconnect

Network Adapter Management

- Show network adapters:
  getmac

- Disable a network adapter:
  netsh interface set interface "" admin=disabled

- Enable a network adapter:
  netsh interface set interface "" admin=enabled

Viewing and Managing Services

- List all services:
  services.msc

- Start a service:
  net start 

- Stop a service:
  net stop 

PowerShell Networking Commands

- Check IP configuration:
  Get-NetIPConfiguration

- Get DNS settings:
  Get-DnsClientServerAddress

- Get active network connections:
  Get-NetTCPConnection

Remote Connection

- Remote Desktop connection:
  mstsc /v:

- Establish a remote PowerShell session:
  Enter-PSSession -ComputerName