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| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="UTF-8"> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | ||
| <title>Hands-on Lab - Troubleshooting Common Issues</title> | ||
| <link rel="stylesheet" href="https://github.com/skunkworksza/Courses/blob/01882983f090495a5d0f3549bd04c378aa3a3398/css/main.css"> | ||
| <link rel="stylesheet" href="https://unpkg.com/carbon-components/css/carbon-components.min.css"> | ||
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| </style> | ||
| </head> | ||
| <body> | ||
| <header> | ||
| <nav> | ||
| <ul> | ||
| <li><a href="/">Home</a></li> | ||
| <li><a href="/training">Training</a></li> | ||
| <li><a href="/services">Services</a></li> | ||
| <li><a href="/contact">Contact</a></li> | ||
| </ul> | ||
| </nav> | ||
| <h1>Hands-on Lab - Troubleshooting Common Issues</h1> | ||
| </header> | ||
| <main> | ||
| <section> | ||
| <h2>Introduction</h2> | ||
| <p>In this hands-on lab, you will learn how to troubleshoot common issues encountered in Asterisk deployments. By the end of this lab, you will be able to:</p> | ||
| <ul> | ||
| <li>Identify common problems in Asterisk setups.</li> | ||
| <li>Use diagnostic tools and commands to troubleshoot issues.</li> | ||
| <li>Apply best practices in resolving and preventing common problems.</li> | ||
| </ul> | ||
| <p>This practical exercise will equip you with the skills needed to effectively troubleshoot and maintain a reliable Asterisk telecommunication system.</p> | ||
| </section> | ||
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| <section> | ||
| <h2>Step-by-Step Instructions</h2> | ||
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| <h3>1. Common Problems and Solutions</h3> | ||
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| <h4>No Audio on Calls</h4> | ||
| <p>Check Firewall Settings:</p> | ||
| <pre><code>Ensure that the necessary ports (e.g., 5060 for SIP, 10000-20000 for RTP) are open.</code></pre> | ||
| <p>Verify NAT Settings:</p> | ||
| <pre><code>sudo nano /etc/asterisk/sip.conf | ||
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| Add the following under [general]: | ||
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| nat=yes | ||
| externip=<Your_Public_IP> | ||
| localnet=192.168.1.0/255.255.255.0</code></pre> | ||
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| <h4>Registration Issues</h4> | ||
| <p>Check SIP Credentials:</p> | ||
| <pre><code>Ensure the correct username and password are used in the SIP client configuration.</code></pre> | ||
| <p>Verify Network Connectivity:</p> | ||
| <pre><code>Ensure the SIP client can reach the Asterisk server.</code></pre> | ||
| </section> | ||
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| <section> | ||
| <h3>2. Diagnostic Tools and Commands</h3> | ||
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| <h4>Asterisk CLI Commands</h4> | ||
| <p>Check SIP Peers:</p> | ||
| <pre><code>sip show peers</code></pre> | ||
| <p>Check Channels:</p> | ||
| <pre><code>core show channels</code></pre> | ||
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| <h4>Log Files</h4> | ||
| <p>Asterisk Log:</p> | ||
| <pre><code>sudo tail -f /var/log/asterisk/full</code></pre> | ||
| <p>System Log:</p> | ||
| <pre><code>sudo tail -f /var/log/syslog</code></pre> | ||
| </section> | ||
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| <section> | ||
| <h3>3. Best Practices</h3> | ||
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| <h4>Regular Updates</h4> | ||
| <p>Keep Asterisk and all related packages up to date to avoid known issues.</p> | ||
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| <h4>Backup Configurations</h4> | ||
| <p>Regularly back up configuration files to prevent data loss.</p> | ||
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| <h4>Monitor System Performance</h4> | ||
| <p>Use monitoring tools to track the performance of the Asterisk server and identify issues early.</p> | ||
| </section> | ||
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| <section> | ||
| <h2>Conclusion</h2> | ||
| <p>By following these detailed hands-on labs, you will build a comprehensive understanding of Asterisk, starting from basic installation and configuration to advanced telecommunication solutions. Each lab builds upon the previous one, ensuring a smooth learning curve and avoiding redundancy.</p> | ||
| </section> | ||
| </main> | ||
| <footer> | ||
| <p>© 2024 Skunkworks. All rights reserved.</p> | ||
| </footer> | ||
| <script src="https://unpkg.com/carbon-components/scripts/carbon-components.min.js"></script> | ||
| </body> | ||
| </html> |