Automatically switch between WiFi and Ethernet
I wanted a way to automatically switch between wifi and ethernet when I connect the system to the ethernet port, or auto start wifi when I disconnect the ethernet port.
Articles
Everything published here, newest first.
2015
Debian daily backup domains with tartarus.
In a previous article we saw how to set up a backup process for tartarus, in this article we will see how we can generate backups of the data in each vhost with tartarus, the reason I do this is...
Touchpad not working on Debian after suspend/hibernate
Touchpad doesn't work after suspend/hibernate on Debian, I ran into this issue a while ago when I installed Debian on my MSI GT70 DRAGON EDITION laptop, this probably will apply for other laptops too.
Coding Problem - Prime Path
The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four-digit room numbers on their offices.
Coding Problem - Phone List
Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let’s say the phone catalogue listed these numbers:
Amazon Glacier Interface
Amazon Glacier is an archive/backup service with very low storage price. However with some caveats in usage and archive retrieval prices. Read more about Amazon Glacier
Git delete a remote/local branch or tag
A lot of people keep asking me on Skype or chat how to delete a remote branch/tag in git, so I decided to put it in a nice little article, so I can refer it to them.
2014
fail2ban for Wordpress and Plesk
I'm hosting quite a bit of pages that run WordPress, and one of the biggest problem that I ran into is that people don't keep their WordPress or plugin installations updated.
Interview question - About arrays
I had an interview for a job, and one question they asked was how to do something in a language I'm comfortable with.
Getting started with gradle and java
I always used ant with Apache Ivy or maven to build java applications, so I thought there has to be something better and easier to build the application instead of using them. So I decided to give...
Express4 + Mongoose + JSON Web Token Authentication
Authentication is part of almost every system, even if it is in node.js, Express, Angular.JS, PHP, Perl, Ruby, or any other languages you are using. Dealing with authentication is a must for most...
How to generate self-signed certificate for usage in Express4 or Node.js HTTP
I needed to generate a self-signed certificate for usage with node.js and express, since I don't want to buy a certificate for just trying out and playing with it.
Emergency reboot/shutdown using SysRq
As you know linux implements some type of mechanism to gracefully shutdown and reboot, this means the daemons are stopping, usually linux stops them one by one, the file cache is synced to disk.
rsyslog centralized logging
First of all logging is really important, and are a critical part of any system, they will give you insight into what a system is doing as well what happened.
Upgrade Plesk 11.5 to Plesk 12 on Debian Wheezy 7.6, fixing OpenDKIM and DK
I wanted to upgrade to the newer edition of Plesk as it has some interesting features for controlling outgoing mail that make my life easier. So I wanted to upgrade and ran into some weird issues...
tmux logging complete output to a file
I've needed to log the complete output of a node.js process I've been running, even though I've been logging everything, there are some situations where the process completely crashes and nothing...
RVM + GitLab on Debian
I needed to install my own GitLab on my server for my personal projects, so I don't have to use GitHub and pay for it. This will require some work, but in the end you will save some money.
2013
KVM port forwarding with NAT network and libvirt on Debian
I needed to forward some ports from multiple KVM machines, I tried with iptables, but the problem is libvirt adds some rules of it's own, and the rules were never in the correct place so it didn't...
How to reset var folder permissions and ownership to their default in Debian
If by accident you execute a command that changes the permission or ownership of a bunch of folders or file in Debian, you are in a lot of trouble, usually the sollution is to reinstall the...
Automatic zone replication with BIND9 in Plesk 11.5 + Debian Wheezy + PHP
This tutorial is aimed at showing how to set up zone replication from a master to a slave server, without the help of the user input on Debian Wheezy with Plesk 11.5 and PHP