Hot To Generate a Custom Color Palette For Cacti Aggregated Graphs
I had a use case where I wanted to colorizes an aggregated graph with a nice gradient color, so I looked to see how to add a new color template to Cacti, but the...
Category: Linux
Manually run dkms to build kernel modules
Some time dkms will fail to build a new version of a module after package upgrade or kernel upgrade, so this is my quick notes about this *note: you don’t need to add the...
Using gpg (1.x) with gpg-agent (v2.x)
If one needs to sign/encrypt multiplies files and the PGP key is encrypted, they can use the gpg-agent to keep the key accessible for some period of time and enter the password once. For...
Overwrite the default GTK theme per application
I love using a dark theme on my system, currently I’m running the Adapta theme. But not all applications looks great in dark themes, some need tweaking, this is a quick hack to overwrite...
Running Java GUI application in Docker
This is a more specific use case of running GUI application with Docker, the procedure is pretty simple (and most option are common for most GUI application), You mount the UNIX socket for the...
Setup NAT with iptables
The Setup Having this setup where Machine A like to connect the Internet via Machine B. Add the following lines to the iptables and make sure to enable forwarding on Machine B
GitKraken not loading in Fedora (libcurl.so.4 issue)
GitKraken is a very nice tool to work with git, it really simplify some of the common tasks which most users need to work with git, and the nice GUI is another plus. Long...
Upgrading Fedora Installation on DigitalOcean
I found this method works for me, #Check if user is root if [[ $EUID -ne 0 ]]; then echo “Sudo privileges required!” exit 1; fi dnf update NEXT_VERSION=25 rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-${NEXT_VERSION}-$(uname -i) dnf...
Visualize real-time data streams with Gnuplot
Some times when I need to troubleshoot a problem, adding some visualization to the process can help a lot, especially if one need to correlate between 2 (or more) metrics in the data. But...
Run Command Before Starting SSH Connection
This a quick hack I found while I was looking to run a knock script before connecting to servers which I have the SSH service protected with a knock sequence. In my setup I...