Join Jon Peck for an in-depth discussion in this video Troubleshooting SSH, part of Learning Linux for PHP Developers (2014).
…Well, you're at this chapter for one of two reasons.…One, something went wrong, dreadfully wrong.…We're talking world shattering, teeth gnashing, hair pulling wrong.…Or two, you want to learn about how to analyze and fix problems.…Actually, that's really good and I appreciate your interest.…Development is about solving problems.…And while this type of system is typically extremely…stable and easy to work with, problems do come up.…Knowing how to deal with them gracefully can be…more important than avoiding them in the first place.…
We're going to explore a number of potential issues with…the system and ways to both diagnose and resolve them.…Let's start with SSH, the secure shell.…The Ubuntu community help for SSH can be found at help.ubuntu.com.…It's a good place to start, in addition to these troubleshooting steps.…SSH is one of those services that's typically working or it's not.…If there's a problem, it's usually not because…it's degraded, it's, just won't work at all.…The first thing to check for: is the guest virtual machine actually running?…
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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