About

The trusted docker image of Backdrop content management framework “linuxconfig/backdrop” can be used to instantly deploy Backdrop on your docker hosts.

Configuration

The backdrop application runs on Debian GNU/Linux system featuring Apache web server, MariaDB ( MySQL ), database and PHP5. A new docker container based on “linuxconfig/backdrop” will expose port 80 which can be linked to the docker host port for an immediate backdrop blog access.

Configured MySQL users:passwords:

• root:”empty password”
• admin:”pass”

Configured MySQL databases:

• backdrop

Exposed ports:

• 80

Deployment

The below command will download and create a new docker container called backdrop and link local host system port 80 with container’s exposed port 80.

# docker run -d --name=backdrop -p 80:80 linuxconfig/backdrop

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Git is a version control system which means that it allows you to keep track of your code or any kind of text throughout the development.

Meaning, you can rewind back and forward to any stage of the code development. Without going into much detail, this is done mainly via few basic commands: clone,
add,commit, push and pull.

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Introduction

For many years people have wanted to protect their right to privacy. As technology changes, it seems that privacy evolves away more and more. I2P is a protocol used for an encrypted multi-proxy on the Internet. While, this sounds simple, there is actually a lot of work going on with I2P to achieve this. Unlike some multi-proxies, I2P will allow you to tunnel many more applications through it than just web browsing, making it a very robust protocol.

I2P is available for all platforms, not just Linux. For this example I have used Debian Sid to perform the installation. With the exception of ‘apt-get’, these instructions should work fine with any Linux distribution. But if you experience problems, please seek documentation for your distro.

Legal Disclaimer

As I explain this to help you maintain priviacy, there will always be a few bad apples in the crowd. I do not condone this use of this article for anything illegal. Even if you are not passing illegal information on I2P, please check your country’s laws on encryption and it’s exportation before you begin.

The Problem with Tor

One would probably see I2P as an overkill without knowing the downfalls of its predecessor. Tor was once a wonderful multi-proxy used for hiding ip addresses and bouncing off servers all over the world. At one time, it was even trusted by most governments for strong anonymity. All of that seemed to change after an article was posted in 2600 Hacker Quartley. One author exposed how becoming an exit node for Tor allowed all the traffic on the Tor network to pass right through your machine. Becoming an exit node was the same as performing a Man-In-The-Middle attack. All one had to do was open up a packet sniffer and see all the traffic going through encrypted. Tor is still used by people trying to protect their privacy. But at the same time it has become a playground for hackers and governments monitoring what they consider suspicious. I2P has secured this problem while adding more functionality.

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As a system administrator or just a backup-conscious home user, sooner or later (usually sooner) you will have to deal with backups. Disasters do happen, ranging from electrical storms to drive failures, and one needs to be prepared. We cannot stress enough the importance of having copies of important data. While the whole concept of backup is too long for this article, we will focus on rsync for what’s called incremental backups.

Incremental backups are based on the idea that, once you have a copy of the data you need to backup, consequent backups of the same data should be incremental, meaning that you only update the backup copy with the differences since the last operation occurred, not create another full copy. We will detail here a setup we have at home for backing up important data, but the examples here can be used at larger facilities. Once you get started, you will know what, where and when you need.

If you have a backup server that’s up 24/7, you can create a cronjob to backup your data periodically. Since our example is home-based, we have a backup server, but since it’s not up all the time, we will show you how to do it manually. rsync needs to be installed on both systems, and that’s about it, no other setup chores must be performed, at least in simple cases. Please remember that you are not by all means tied to Linux or other Unix platform : rsync is available also for Windows. If you are worried about security, rsync is working over SSH and can be regarded as a secure replacement for rcp (remote copy) command, so it’s all good.

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XZ is another compression method used to compress data. There are several ways on how to decompress XZ archive on Linux. For a tarball XZ compressed archive first try a tar command with xf options. This way a tar command will try automatically guess a compression method. Before you run the above command firs install XZ tools:

# apt-get install xz-utils

Otherwise, you will receive error message output:

tar (child): xz: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now

To extract XZ tarball run:

$ tar xf myarchive.tar.xz

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