Category: Linux

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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...

GTK+ logo 0

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...

Java in A container 0

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...

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Setup NAT with iptables

The  Setup Having this setup where Machine A like to connect the Internet via Machine B. +——————-+ +—————–+ | | | Machine B | | Machine A | | (the gateway) | | (the...

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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...

gnuplot icon 0

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...

4

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...

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Building CinelerraCV for Fedora 22 under Docker

The Dockerfile #FROM 195a4b79eb1c #Version 0.4 FROM Fedora-Docker-Base-22-20150521.x86_64 MAINTAINER [email protected] RUN dnf update -y && dnf install -y mock rpmdevtools tmux htop && dnf clean all RUN [“dnf”, “install”, “-y”, “http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-22.noarch.rpm”, “http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-22.noarch.rpm”] RUN [“/usr/sbin/useradd”,...