Devops on jpcercal.com

Accessing Amazon RDS Instances from your Desktop

Fri, 15 Aug 2014 10:48:28 +0000

After a few minutes of research, I found an interesting solution for connecting to Amazon RDS through a Desktop client, well, the magic formula is an SSH connection that forwards packets to the local machine, allowing a remote connection this way.

First you need to add your Amazon EC2 service connection key. Do this by running the following command:

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$ ssh-add <your-key-filename>.pem

And to forward the packets, run the following command:

MySQLDump - MySQL database backup

Mon, 21 Oct 2013 12:10:18 +0000

Using the mysqldump tool, you can back up a local database and restore it to a remote database with the same characteristics, all using a simple command. Next, you’ll see practical examples of using the mysqldump tool to export and import MySQL databases.

Below is an export example:

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$ mysqldump -u [USERNAME] -p[PASSWORD] [DATABASE-NAME] > dumpfilename.sql

And to import the database:

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$ mysql -u [USERNAME] -p[PASSWORD] [DATABASE-NAME] < dumpfilename.sql

Based on the syntax shown above, let’s say there is a database called “exemplo”, and we want to export it. To do this, we would run the following command:

Getting to Know and Installing the SAMBA server on LINUX

Thu, 22 Nov 2012 02:36:32 +0000

WHAT IS IT?

SAMBA is a server and a set of tools that lets Linux and Windows machines communicate with each other, sharing services (files, directories, printing) through the SMB (Server Message Block)/CIFS (Common Internet File System) protocol, equivalent to the NetBEUI implementation on Windows.

It can also be used as a primary domain controller (PDC), serving as an authentication server for Windows clients.

In most cases, access control and directory display in samba are more detailed and customizable than in Microsoft’s own system.

Downloading and Installing the libxml library

Thu, 22 Dec 2011 19:13:10 +0000

XML is a standard for building structured documents based on markup containing the data.

The libxml2 library was written in pure C to allow easy reuse across various platforms, including embedded systems.

Let’s get our hands dirty!

Visit the website and download the latest stable version:

http://www.xmlsoft.org/downloads.html

Open the terminal and enter the directory where the library was saved:

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$ cd ./Download/

Extract the file into the "/opt" directory:

Downloading and Installing the Zlib library

Thu, 22 Dec 2011 17:43:30 +0000

The zlib compression library is intended for the compression and decompression of files, including integrity checks of decompressed data. This library can also optionally read and write gzip streams in memory.

The zlib format was primarily designed to be compact and fast, for use in memory and communication channels.

So, let’s get our hands dirty!

Visit the official website and download the latest stable version:

http://zlib.net/

Open the terminal and enter the directory where the library was saved:

Installing the Apache web server on Linux

Thu, 22 Dec 2011 09:38:01 +0000

Well, today I’ll show you how to install the Apache 2 web server. So, let’s go!

Note: When I performed the installation, the latest version of the package was “2.2.19″. So the tutorial will cover that version. However, you’ll download the most recent version, so your file will probably have a different name.

First download the latest package containing the Apache source code, in “tar.gz” format, from:

What is XAMPP and what is it for?

Wed, 30 Jun 2010 21:21:18 +0000

Hello, let me introduce you to my favorite package (Apache + PHP + MySQL). This is how I started; today I install them separately.

What is XAMPP?

XAMPP is a package that includes the main open-source servers available, including FTP, the MySQL database and Apache with support for the PHP and Perl languages. With it you can run well-known CMSs such as WordPress and Drupal on the local machine (on your own computer), speeding up development. Currently you can use XAMPP on four operating systems, which are: