Category Archives: Linux

Centos 7 mail server

In this blog I am adding a few comments / observations on installation and configuration of mail server with the following features: firewalld enabled selinux enabled postfix dovecot spam assassin clamav amavisd Roundcube Personally, I am a huge fan of … Continue reading

Posted in Fedora, Linux | Leave a comment

Megacli

Recently one of my RAID drives failed failed on my server and I had to learn to use MegaCli. MegaCli is a command line tool used to manage DELL hardware RAID devices, however, the available guides are cryptic and difficult … Continue reading

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How to determine if an application is using Wayland or Xwayland

With the release of Fedora 23 I noticed there is the option to run “gnome-wayland” so I took it for a test drive. Although I am not normally a fan of gnome-shell I have to admit it looks and runs … Continue reading

Posted in Fedora, Linux | 3 Comments

KDE Dual Monitors

I started using various music distros (KXStudio and Fedora Jam). One of the annoyances is that KDE does not remember the settings for dual monitors. Thus every time after logging in the screens need to be fixed. This seems to … Continue reading

Posted in Fedora, Linux | 3 Comments

Music practice

With the advent of YouTube , there is a plethora of music “lessons” available on the internet. When learning new riffs, however, it is helpful to be able to alter the speed of playback and play selective sections of the … Continue reading

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Display-dhammapada version 1.1

display-dhammapada is a small package I have been maintaining for the last 2 years and I recently found the time to update. Verses from the English, German, or Polish translations of the Dhammapada are displayed, either in a terminal or … Continue reading

Posted in Linux | 6 Comments

Installing ddate

ddate is a utility to display the Discordian date with a colorful history. It was removed from util-linux but the source code is still available on GitHub source https://github.com/bo0ts/ddate Click the “Download Zip” box on the left. save / extract … Continue reading

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Printing HP Deskjet 1000

I was having trouble printing to my HP Deskjet 1000. When printing a test page, the print job would appear to work, without any error message in /var/log/cups/error_log . however, nothing would print from the printer. Turned out to be … Continue reading

Posted in Fedora, Linux | 4 Comments

Set a hostname in Fedora

I know I have not been very active lately, but I came across a convenient command line tool to set a host name in Fedora. While it is possible to set a host name by manually editing a few system … Continue reading

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Selinux and confined users

I admit to a paranoid streak and have been confining my users with selinux. I confine almost all users as user_u /usr/sbin/semanage login -a -s user_u $user Users who need admin access I confine as staff_u /usr/sbin/semanage login -a -s … Continue reading

Posted in Fedora, Linux | 4 Comments