Been a while I’ve always wanted my Android to stay connected to my Linux via Bluetooth but I always get this heartbroken error message. bluetoothd[778]: a2dp-source profile connect failed for XX:XX:XX:XX:XX:XX: Protocol not available Why This Error? Most bluetooth devices are connected to your PC to use as Multimedia device (Sound), but when it wants…

Read More Bluetooth: Fix a2dp-source profile connect failed for XX Protocol not available in Linux

SSH Keys SSH keys serve as a means of identifying yourself to an SSH server using public-key cryptography and challenge-response authentication. One immediate advantage this method has over traditional password authentication is that you can be authenticated by the server without ever having to send your password over the network. Anyone eavesdropping on your connection…

Read More How to Set Up SSH Keys Between Servers

After a final decision on rooting my phone, I did it and it wasn’t that hard ;). Zenfone 2 ZE551ML is one of ASUS’ latest phone with high specifications of 4GB RAM and 2.3GHz QuadCore Intel Atom processor and it comes in kinda low price which is actually good. Zenfone 2 comes with Android 5.0…

Read More One-Click Root for ASUS Zenfone 2 ZE551ML in Linux and Windows

On installation of Debian 8 on a PC, grub wasn’t installed. Trying this method to install it, I got the error: efibootmgr: Could not set variable Boot0004: No space left on device I thought, is my /boot partition filled up? or my / is filled up so early. Had to even extend my /boot partition…

Read More Fix Grub efibootmgr: Could not set variable *: No space left on device

What is Locale? Locales defines language and country specific setting for your programs and shell session. You can use locales to see date, time, number, currency and other values formatted as per your country or language on a Linux or Unix-like system. To set system’s locale you need use shell variable. For example, LANG variable…

Read More Fix “bash: warning: setlocale: LC_ALL: cannot change locale” in Debian

As a system admin, was stuck one day looking for a way to delete old files and it brought me to this code. This short code will delete files recursively if directory provided as the argument, if it’s a file, it just deletes the file if it matches the given time frame So with the…

Read More Recursively Delete Files Based on Time Old Using Python

Let’s Encrypt is a certificate authority that entered public beta on December 3, 2015 that provides free X.509 certificates for Transport Layer Security encryption (TLS) via an automated process designed to eliminate the current complex process of manual creation, validation, signing, installation and renewal of certificates for secure websites. Let’s Encrypt made it easy for…

Read More Let’s Encrypt: How to Generate Free Signed SSL Certificate For Your Domain