Whilst updating my computer I received a Hash Sum mismatch error. For the update I was using the text based apt.From the terminal the command Usually from the terminal I run apt-get update followed by either apt-get upgrade or apt-get dist-upgrade. Running apt-get update the error was given. The hash sum error came at the […]
Category: Linux
Which Debian Package is a File in
Generally I am interested in finding Debian packages, not in the specific files contained within the packages. A while back I was interested in knowing which package provided a particular file on the computer – discovering what package a file comes from. The file was corrupted and I wished t ore-install it. As an example […]
Changing Hostname
A computer hostname is used to label a particular computer, or device, which is connected to a network. It is concatenated with the network name to create the full name of the computer. The hostname command can be used to elicit the host name part of the computer name. On a Debian based system the […]
An Error Occurred in Avast! Engine: Invalid Argument
I was interested in running the Avast anti-virus program on a Linux computer. However, once running I had an Invalid argument error. The Avast anti-virus program was installed using dpkg, its not available as a linked download on the website. As root I navigated to my usual downloads directory, cd Downloads From this directory I […]
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Adding Google Two Part Authentication
Google Authenticator can be used to provide two part authentication for Linux SSH logins. For a Debian computer the package to be installed is libpam-google-authenticator. This can be installed using apt in the usual way, as root: apt-get install libpam-google-authenticator Currently the package is available in the unstable repository. References to these needs to be […]
Apache Restricting Access to /icons/readme
By default the files in the directory /usr/share/apache2/icons are viewable on Apache based websites. It is considered to be a CPI scan security issue, requiring that access be blocked. Included within the icons directory are two readme files README and REAME.html. Exposing default files for view is considered to be a potential security risk. Whilst […]
Using htaccess to Block Access to Your Website
To prevent unwanted website visitors, for example sources of spam, visitors can be blocked by IP address or by the resolved website URL. A few extra lines in the .htaccess file is all that’s required. The same can be achieved by editing the appropriate Apache configuration files. However, if you are hosting your website on […]
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Change KDE Plasma Workspace from Laptop to Desktop
On a laptop I had selected to use the Plasma Laptop workspace type. Rebooting I had a blank screen. I wanted to re-instate the Plasma Desktop workspace. Its an old laptop and curious to see the progress with the KDE Plasma laptop workspace I selected to change the desktop style. (Systems Settings/Workspace Behaviour/Workspace/workspace Type) When […]
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Automatically Updating Date and Time
Automatically synchronising the date and time using the Internet’s time servers, can help prevent a computer time from drifting. To enable a Linux computer to synchronise its time NTP server is installed and configured. For Debian computers the ntp package can be installed using apt; apt-get install ntp The configuration file for ntp is to […]
MythWeb Database Error
A Linux upgrade caused a database connection failure error for MythWeb. The MythWeb page was replaced by one simply showing a white box with the message ‘Database Error‘. During the update the option was presented to accept the package maintainer’s version of the Apache configuration file. I had accepted to replace the Apache settings. The […]
