Remove all kernels, but 2:
dnf remove $(dnf repoquery --installonly --latest-limit=-2 -q)You can edit /etc/yum.conf or /etc/dnf/dnf.conf and set installonly_limit to limit the amount of kernels installed:
installonly_limit=3Category: Linux
SSH Port Forwarding
Local port forwarding
Imagine that you are doing web development on a remote system called remote.example.com. You usually reach this system via ssh but it’s behind a firewall that allows very little additional access, and blocks most other ports. To try out your web app, it’s helpful to be able to use your web browser to point to the remote system. But you can’t reach it via the normal method of typing the URL in your browser, thanks to that pesky firewall.
Continue reading “SSH Port Forwarding”Record microphone input and output to mp3 file
arecord -q -f cd -r 44100 -c2 -t raw | lame -S -x -h -b 128 - `date +%Y%m%d%H%M`.mp3Record audio notes or meetings requires arecord and lame run mp3gain on the resulting file to increase the volume / quality ctrl-c to stop recording
Continue reading “Record microphone input and output to mp3 file”LD_DEBUG Help
Useful environment variable in the GNU C loader is LD_DEBUG. This triggers the dl* functions so that they give quite verbose information on what they are doing. For example:
Continue reading “LD_DEBUG Help”Etrade Pro Working On Linux
If you have an Etrade account and a Linux computer. Chances are you haven’t found clear cut instructions on how to get the EtradePro application to work under Linux.
Here are the instructions for Fedora Linux. With small tweaks it should work with any distro ( Debian, SuSe, Arch, etc.. )
Continue reading “Etrade Pro Working On Linux”