Monthly Archive: November 2019

How to fix GPG error NO_PUBKEY in Ubuntu

Sometimes, you can get an error like below when you use apt-get update command: W: GPG error: http://archive.canonical.com trusty Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY...

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KNOPPIX 8.6.1 releases, D-ROM bootable GNU / Linux system

KNOPPIX is a CD-ROM bootable GNU / Linux system (LiveCD), features include automatic hardware monitoring, support for common graphics cards, sound cards, SCSI and USB devices, and other peripherals. KNOPPIX can be used for...

How to check DDOS attack with command-line on Linux

Your server appearing pretty slow could be many things from wrong configs, scripts, and dodgy hardware – but sometimes it could be because someone is flooding your server with traffic known as DoS (Denial...

How to install Linux kernel 5.4 in Linux

Linus Torvalds announced on the Linux Kernel mailing list that the Linux Kernel 5.4 has been officially released! Linux Kernel 5.4 includes the kernel lockdown mode, intended to strengthen the boundary between UID 0...

GNOME 3.35.2 Released

The GNOME project today announced GNOME 3.35.2 desktop environment for Linux-based operating systems. This is an important version with many new features and improvements. Changelog GNOME 3.35.2 is now available. This is the second...

File Explorer has an issue in Windows 10 version 1909

Microsoft is currently pushing Windows 10 Version 1909 updates to more users, and new features in this release include improved search capabilities. When performing a search in the File Explorer, it is reasonable to...

Windows 10 Insider Preview Build 19030 Releases

Microsoft has just begun to push Windows 10 Insider Preview Build 19030 to users participating in the Fast ring to continue fixing the issue. Recently, several newly released betas have mainly solved the known...