Ubuntu doesn’t detect WiFi Access Point

Settings

Recently I came across very different problem when I moved to a place where there was few … Read more

Understanding wireless beacon packet ( captured using pcap API’s )

As per Wikipedia, Beacon frame is one of the management frames in IEEE 802.11 based WLANs. It contains all the … Read more

How to Enable and Disable Wireless / WiFi from command line ?

Rfkill is a tool for enabling and disabling wireless devices. We use “rfkill list” command as below … Read more

How to Turn ON and Turn OFF Bluetooth from command line ?

Rfkill is a tool for enabling and disabling wireless devices. Using “rfkill list” command we first check … Read more

sniffex – C program to Capture wifi packets using libpcap

libpcap provides functions for user-level packet capture, used in low-level network monitoring. Following program captures the packets … Read more

How to Scan and display list of available wireless networks ?

LINSSID – linssid is a graphical wireless scanner, LinSSID displays locally receivable 802.11 wireless attach points and ad … Read more

How to Connect Wi-Fi from Linux Terminal Using Nmcli

nmcli is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as … Read more

Wi-Fi Initial Communication between device and access point

wifi-handshaking

Following diagram shows the initial handshaking between the device ( like mobile ) and wireless access-point ( … Read more