Free up almost 1GB of SD card space on Raspberry Pi

Assuming that you use Raspbian, if you’re not using libreoffice, wolfram, or scratch, removing them can save a lot of space. sudo apt-get purge libreoffice wolfram-engine sonic-pi scratch Remove the junk and temporary files by removing old package dependencies and junk produced by apt-get. sudo apt-get cleansudo apt-get autoremove Find your 10 largest directories: du […]

Synology bad sector detected

A bad sector can be easily fixed from Storage Manager – Volume repair. In my case, the repair process started automatically. The log can be identified as: DiskStation kernel: [ 5304.730000] res c1/40:50:c8:1a:34/40:00:00:00:00/40 Emask 0x3 (HSM violation) DiskStation kernel: [ 5304.740000] ata3.00: status: { Busy } DiskStation kernel: [ 5304.740000] ata3.00: error: { UNC } […]

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Why is Android studio slow

Why is Android studio so slow? Why does it take so much time when building a project? Event when android studio is building a simple basic app it can  take minutes. In order to make Android Studio build your app a lot more faster, which can mean that it can build and run the app […]

How to remove the yellow background from Google AdSense ads

In case you see a yellow background under Google ads and if want to know how to remove it, following these 2 steps will solve the problem. The yellow background from Google ads that you see in wordpress can be caused either by the way you configured the ads in Google Adsense, either caused by […]

Configure Raspbery Pi sound to HDMI or 3.5 Audio Jack

Configure Raspbery Pi sound to HDMI amixer cset numid=3 2 Configure Raspbery Pi sound to  3.5 Audio Jack amixer cset numid=3 1  

WordPress, Contact Form 7 not sending emails, no confirmation, no error

Contact Form 7 is indeed a very powerful plugin and a great contact form for your wordpress. Still,  a lot of users report that email sent with Contact Form 7 are not received, or not sent or even that there is no error about it.

How to find Synology NAS HDD temperature

There are several ways to read the temperature on Synolog NAS HDD. All of them use smartclt that is actual reading the S.M.A.R.T features of the storage device. First, list the storage devices installed in

How to sync folders between 2 Synology NAS

In order to sync folders between 2 Synology NAS only few steps are needed. We will refer to NAS 1 as local nas and NAS 2 as remote NAS. The two NAS systems will be configured for a bidirectional sync. Changes made on one NAS will be reflected on the other and vice-versa.

scp command to download a folder

SCP is an easy to use tool for downloading a file or folder, from command line. It is actually a powerful tool that is available in linux for file transfer from command line. We have to mention here also wget, but that is a different topic. To start your download from comand line you only need […]