Join Jon Peck for an in-depth discussion in this video Using snapshots to turn back time, part of Learning Linux for PHP Developers (2014).
…A significant portion of this course has been…devoted to server configuration, and for good reason.…There's a lot of complexity in server management.…In this chapter, let's take a closer look at VirtualBox…and discover even more ways it can help with work.…In addition to hosting entire operation systems,…VirtualBox can create snapshots of a guest machine.…A snapshot is a saved state with all the…changes and settings preserved, that could be reverted back.…This is fantastic for developer…experimentation, as potentially risky operations that…might render a guest operating system inoperable, can be attempted without fear.…
Another possibility is setting up a database just so, saving a snapshot, and…attempting a complex operation that might fail,…then using a snapshot to revert back.…You can also take a snapshot from another snapshot, creating a hierarch.…This way, you can potentially create multiple machine states that can be…switched back and forth between, which…can be useful testing different server configurations.…
The demonstrations are performed with the Ubuntu LTS distribution of Linux, but the skills taught here are also applicable to other Linux distributions. Every command is described in detail in context, and a comprehensive quick reference is provided for convenience.
- What is Linux, and why should I use it?
- What's a LAMP, and why does it matter?
- Creating and configuring a virtual machine
- Working with the Linux command line
- Configuring the servers, including Apache virtual hosts
- Building a development server dashboard
- Using PHP package managers like Composer and PEAR
- Installing Drupal, WordPress, and more on the server
- Self-hosting Git repositories, including a web interface
- Enhancing the server with debugging and profiling
- Exporting a virtual appliance to use on another machine
- Server troubleshooting techniques
Skill Level Beginner
Q: The pecl installation of uploadprogress fails, saying it is not a valid package archive. How can I install uploadprogress?
A: There is a bug in Ubuntu's pecl that was introduced after the course was recorded; the workaround command is "sudo pecl install -Z uploadprogress"
Q: Where can I get the exact versions of the software used in this course?
Q: In Windows, git operations ask for a password. Why?
A: Make sure that pagent (PuTTY agent) is running and has the private key loaded. See Chapter 3, movie 4 for details.
PHP with MySQL Beyond the Basicswith Kevin Skoglund10h 26m Intermediate
1. Getting Started
2. Creating a Virtual Machine
3. Using the Server Command-Line Interface
4. Initial Server Configuration
5. Building a Development Server Dashboard
6. Installing PHP Applications for Site Development
7. Source Code Management
Introducing Git2m 16s
8. Enhancing the Development Server
9. Advanced VirtualBox Techniques
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