WinOS – Wireless – “Airplane Mode”

Background Unable to use the wireless network on a computer that I am helping put together for my cousin. Error Message Textual The error messages that I am getting simply states "Airplane Mode". Images Outline Desktop Status Bar Control Panel Network and Internet Network Connections Settings Status Airplane Mode Desktop Status Bar Control Panel Network … Continue reading WinOS – Wireless – “Airplane Mode”

PowerShell – Network Command – “Test-NetConnection”

Background Continuing with preparing for our planned Network work. Lineage PowerShell – Network Command – "Get-NetAdapter" Link Test-NetConnection Outline The Test-NetCommand provides basic network connection testing over the TCP Protocol. Exercises Exercise - Basic Outline Basic network connectivity test TCP Network Port Test Network Port Number specified as numeric "Common TCP" Port Port Test Diagnostic … Continue reading PowerShell – Network Command – “Test-NetConnection”

PowerShell – Network Command – “Get-NetAdapter”

Background Have a few days of network diagnostic work ahead. And, so let us prepare and go through our requirements worksheet. Get-NetAdapter Outline The Get-NetAdapter command lists the network adapter on our machine. Syntax Sample Output Output-Image Output-Text Explanation I am on a laptop using a wireless connection The key points for me are My … Continue reading PowerShell – Network Command – “Get-NetAdapter”

UDP Flood Attack

Background My Internet connection has been spotty for a while here. TroubleShooting Finally, took the time this evening to see what is going on. Outline Router Check the Router Wireless Access Point Check the Wireless Access Points Computer & Hosts Check the computers and hosts connected to your Router & Hosts Internet Service Provider Check … Continue reading UDP Flood Attack

NetCat – Visual Studio – Source Code Compilation

Background Wanted to use netcat (nc) on MS Windows.   What is NetCat ? Wikipedia Link netcat is a computer networking utility for reading from and writing to network connections using TCP or UDP. The command is designed to be a dependable back-end that can be used directly or easily driven by other programs and … Continue reading NetCat – Visual Studio – Source Code Compilation

Netbios Over TCP/IP – Yea Or Nay

Background Had an insomnia night last week.  And, so took to the laptop and wanted to troubleshoot an issue. As part of that troubleshooting exercise I knew Network Traffic Pattern might be pertinent. Wireshark Network Traffic Here is sample of some of what I noticed through capturing Network Traffic. Image   Explanation Noticed a lot … Continue reading Netbios Over TCP/IP – Yea Or Nay

Automatic Web Proxy Discovery and Client Configuration in MS Windows Environment

  Background For most of us that work in Corporate MS Windows Environment, our Internet Gateway \ Proxy configuration is pretty hidden. At home, we either have direct connections to the Internet, have a gateway assigned to us by our ISP, or get on the Internet through our own Router or Wireless Access Point (WAP). … Continue reading Automatic Web Proxy Discovery and Client Configuration in MS Windows Environment

Additionally Information is needed to connect …

  Warning When I come in each morning and occasionally through the day, I get the message pasted below:   Image:   Text: Additionally Information is needed to connect ....   Troubleshooting Review Network Connections Access Control Panel \ Network and Internet \ Network Connections Our display looks like this: On the Wireless Network Connection, … Continue reading Additionally Information is needed to connect …

Microsoft – Network – Error – NetBt – A duplicate name has been detected on the TCP network

Background Seeing a lot of errors bearing the signature "A duplicate name has been detected on the TCP network. The IP address of the machine that sent the message is in the data. Use nbtstat -n in a command window to see which name is in the Conflict state." Error Discovery Event Viewer For System … Continue reading Microsoft – Network – Error – NetBt – A duplicate name has been detected on the TCP network