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Tutorial

Tutorials for server admins: longer walkthroughs that build a working setup from start to finish.

35 guides in Tutorial. Search them or narrow down by topic. Press / to search.

35 guides

Asterisk AMI Originate a Call with Python

Create a least-privilege Asterisk AMI user, send Login, Originate and Logoff, and place a call with a standard-library Python script. Tested on Asterisk 22.

October 7, 2026

CloudLinux LVE Limits Explained: SPEED, PMEM, EP, NPROC, IO

CloudLinux LVE limits explained: what SPEED, PMEM, VMEM, EP, NPROC, IO and IOPS cap, what faults mean, how to read them with lveinfo and how to choose limits.

October 6, 2026

Asterisk CLI Commands Cheat Sheet: PJSIP, Calls, Dialplan, Logs

PJSIP-era Asterisk CLI cheat sheet: endpoints, contacts, registrations, SIP and RTP debugging, dialplan, logging and safe restarts, checked on Asterisk 22.

October 6, 2026

Asterisk Dialplan Pattern Matching: X, N, Z, [ ], . and ! Explained

How Asterisk dialplan patterns work (X, Z, N, sets, . and !), which pattern wins, and how to test with dialplan show, with real output from Asterisk 22.

October 6, 2026

STIR/SHAKEN for Asterisk and FreePBX: Attestation and Who Signs

STIR/SHAKEN explained for Asterisk and FreePBX admins: attestation levels, why your provider signs, the 2025 third-party rule, and res_stir_shaken verification basics.

October 6, 2026

Asterisk AudioSocket: Connect a Call to an AI Voice Agent

How Asterisk AudioSocket streams call audio to an AI voice agent: protocol, dialplan and channel options, a tested echo server, architecture and latency.

October 6, 2026

Transcribe Asterisk and FreePBX Call Recordings on Your Own Server (faster-whisper, Tested)

A Python script that transcribes Asterisk, FreePBX and Vicidial recordings (.gsm, WAV49, µ-law) on your own CPU server with faster-whisper, splits stereo calls into caller and agent, and writes TXT, SRT and JSON.

October 6, 2026

Install Active Directory on Windows Server 2025: New Forest Step by Step

Build a new Active Directory forest on Windows Server 2025: prepare the server, add the AD DS role, promote with PowerShell or Server Manager, then configure DNS, sites, OUs and health checks.

September 30, 2026

Install Issabel 5 on Rocky Linux 8: Simple Step-by-Step PBX Setup

Prepare a minimal Rocky Linux 8 server, run the Issabel 5 netinstall script, log in to the web interface, and set up extensions, a trunk, routes, the firewall and backups.

September 30, 2026

Install Asterisk 22 LTS on Debian 13: Step-by-Step Guide

Build Asterisk 22 LTS from source on Debian 13, run it as a non-root service, register two PJSIP phones, add a simple dialplan and lock down the SIP and RTP ports.

September 30, 2026

Install VMware ESXi 9: Complete Step-by-Step Setup Guide

Check the hardware, build the install media, run the ESXi 9 installer, set the management network in the DCUI, then log in to the host client to add a datastore, NTP and the first VM.

September 30, 2026

Install Proxmox VE 9: Step-by-Step Setup on Bare Metal

A complete Proxmox VE 9 installation: prepare the hardware and USB stick, choose ZFS or ext4, set the management network, switch to the no-subscription repository, update, and create the first virtual machine.

September 30, 2026

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