Sometimes, even though you have closed all applications, you can experience, that FreeBSD and other operating systems can not unmount an external USB disk drive or other mounted device, because of the error message Device busy.
Continue reading “Unmounting a busy device on FreeBSD”Author: Micski
Micski lives in Copenhagen, which is the capitol city of Denmark, where he's a system administrator of information technology and a semi-professional poker player.
In this example, a FreeBSD bootable USB memory stick will be prepared, so it can be used to boot a computer and install FreeBSD on it. Tested on FreeBSD 13.
Continue reading “Preparing a FreeBSD bootable USB memory stick.”FreeDOS is a free and open source operating system variant of the classic MSDOS from the 90’s, just like DRDOS and PCDOS from the time. FreeDOS can be used to run legacy business software and classic games for MSDOS. In this example, FreeDOS 1.3 is installed as a guest in VirtualBox 6.1 on a FreeBSD 13.2 desktop computer.
Continue reading “How to install FreeDOS on FreeBSD.”In this example, the VirtualBox kernel module 6.1.36_1 for VirtualBox 6.1.36_1 on FreeBSD 13.2 is installed from ports to a fix version mismatch.
Continue reading “How to fix version mismatch for FreeBSD VirtualBox kernel module.”An overview of two-factor authenticatation (2FA) and how it works.
Continue reading “How to protect online accounts with two-factor authentication (2FA).”Open dconf-editor and go to org, gnome, control-center and last-panel. Set the value to default. This worked for me. Thanks to bpurgar for the solution in FreeBSD Bugs. See more at Bug 259007.
Configure FileZilla to access and use an SFTP server in order to upload and download files. Tested with FileZilla 3.3.1 on FreeBSD 13.1 on 2022-11-04.
Continue reading “How to use FileZilla to access an SFTP server.”This page describes, how to block web browser and bot user agent strings from accessing, scraping and hacking a website by configuring the Apache .htaccess control file. Written 2022-08-11. Tested with Apache 2.4.54 for FreeBSD.
Continue reading “How to block user agents with Apache .htaccess.”This page describes the different link relations and how to set them, when linking to other pages, and thereby letting search engines understand, that the linking page is not trying to manipulate the ranking algorithms.
Continue reading “What is HTML link relations and which ones should be used?”