Commands and Packages

How to Identify which process keeps port busy on android / Linux ?

Lets say you are trying to do something with UPNP which reserves port 1900 for all of … Read more

How to find the package that provides a file in Ubuntu ?

If you want to identify some binary belongs to which package in Ubuntu in certain situations when … Read more

How to record and replay Linux terminal commands ?

If you want to capture something like commands when you are installing some software, compiling some opensource … Read more

What is m4 and How to Fix: “m4: command not found” error ?

If you have installed fresh Ubuntu on your development machine and tried to compile some opensource source … Read more

Solved : fatal error: pcap.h: No such file or directory

If you are writing some packet sniffing code using libpcap on Ubuntu Linux, there are higher chances … Read more

Solved: ImportError: No module named requests

When we tried to run a python script to check upnp information from https://github.com/lynxbee/upnp_info/blob/master/upnp_info.py on Ubuntu, we … Read more

How to Fix : sudo: unable to resolve host my_user: No such file or directory

If you have changed the hostname of your Linux PC, by using command from https://lynxbee.com/changing-hostname-in-ubuntu/ there are … Read more

Skype

How to Install Skype on Ubuntu 20.04 and 18.04 ?

For installing skype on 64 bit Ubuntu, you can follow below simple steps to get everything installed … Read more

How to check if Bluetooth device is UP or NOT using l2ping ?

If you want to know the bluetooth device you want to connect to is alive or not, … Read more