How to validate digital signature in a document in Linux

In Linux, libreoffice-draw has the ability to open and validate digital signatures. Unfortunately, this functionality is broken as of today in the seahorse or gnome-keyring on LinuxMint 19.2 Tessa. This is due to the Ubuntu repository not having an updated package or a bug in seahorse. Without digging into above, a different program named PDFStudioViewer … Continue reading How to validate digital signature in a document in Linux

Shared hosting and WordPress

WordPress had recently upgraded it's code to work with PHP 7. Subsequently, each time I logged into the hosting provider account, I was always reminded by WordPress to upgrade the WordPress code and stay up to date with the latest security patches. Unfortunately, the hosting provider informed that the latest PHP 7 scripting language could … Continue reading Shared hosting and WordPress

Thunar file manager does not show archiving options in the menu upon right click

Thunar File Manager on Xubuntu did not display the options of Extract or Extract Here... when right clicking on an archive file. This was because the thunar-archive-plugin is not installed. To get the option to extract archive files, open a terminal window and install the thunar-archive-plugin as below: $ sudo apt-get install thunar-archive-plugin <enter>

How to use fastboot on Android phone from a computer with USB 3.0 ports only

It is rather unfortunate, but twrp.img could not be transferred to the Xiaomi phone simply because the computer from which it was done, did not have a USB 2.0 port. To overcome this, connect a USB 2.0 hub to the USB 3.0 port of the laptop. Then connect the Xiaomi phone USB cable to the … Continue reading How to use fastboot on Android phone from a computer with USB 3.0 ports only

How to hash files in Windows 10 into a file

Getting the MD5 hash of a file on Linux is very easy. However, in Windows, there are several utilities, but using Windows internally inbuilt command certutil, it can be done as follows in the Windows shell: C:>for /r %%f in(x) do (certutil -hashfile "%%f" MD5) >> output.txt output.txt will contain the files with their MD5 … Continue reading How to hash files in Windows 10 into a file

How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580

Open a terminal windows in linux and enter the following commands: $ sudo apt-get purge snapd* <enter> Above command removes snapd. $ sudo systemd-analyze blame <enter> Also, found the plymouth-quit-wait.service takes very long time in boot. To eliminate the problem, enter following commands: $ sudo vi /etc/default/grub <enter> # Insert below line:GRUB_CMDLINE_LINUX_DEFAULT="noplymouth video=SVIDEO-1:d" :wq Update … Continue reading How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580