If you changed the hostname/FQDN of a Linux server, you may end up with some issues, especially with mailing if some areas were forgotten with that change. Here is a quick procedure involving all the steps you should be looking for. (The following example is based on a Debian Linux system running Postfix MTA.) 1.… Read More »
This symptom occurred all of a sudden with Nmap 7.80 and Windows 10 version 1909 (OS build 18363.836), where nmap tries to query using interface “eth0” : Starting Nmap 7.80 ( https://nmap.org ) at 2020-06-30 11:28 Eastern Daylight Time dnet: Failed to open device eth0 QUITTING! It seems that latest Windows updates is involved in… Read More »
Having the following login error attempting to establish a RDP session to a Windows server or workstation? The requested session access is denied. The following behavior apply to your case: The user you are using is a part of the Remote Desktop Users group (or allowed to the RDP users) The user is a non-administrator… Read More »
If you ever experienced the “Google Chrome Black Screen of Death”, where the whole window is just black, and persisting even after rebooting your computer (works well for a short period of time and then go black again), here is the possible cause and solution below. In most of the cases, this is due to… Read More »
If you are experiencing a blank, empty window when using the “Save as” function with Adobe Acrobat, this is most likely an issue with the save online features that are enabled by default. To work around this issue, simply deactivate the online storage options. While Acrobat is opened, browse to : Edit > Preferences >… Read More »
If you are using PuTTY or any variant version such as Kitty (not the feline, but the SSH client!), you may have noticed that backspace does not work with some devices. To resolve this matter, follow the easy steps below. 1. In the client window, on the left pane, browse to : Terminal > Keyboard… Read More »
Beside the iCloud service, iTunes is the way to go when you need to backup your Apple mobile devices such as iPhone and iPad. If you want to secure the backups taken by iTunes on your computer file system, this article will show you where it is stored on your Windows computer file system. Before… Read More »
By design, Google Chrome cannot be started as root on Linux systems for security reason, which totally make sense. However, there might be some exceptions where it is required. Here is how to make it work. If you need to run it once or really occasionally, you may start it with the following command using… Read More »
Since Windows 10 build 1803 from April 2018, the XPS Viewer is no longer included by default in that build of the operating system and has to be installed manually. Usually this is done by browsing to the applications and feature pane but sometimes cannot be found and installed this way. The quickest and most… Read More »
If your Windows 10 system suddenly stopped booting and show the following error message : VOLMGRX INTERNAL ERROR It most likely mean that your software RAID volume has failed. It may indicate a hardware underlying issue, such as a failed drive or the mirror just broke and is no longer in sync. To find out,… Read More »