Sniffer installation

This guide provides step-by-step instructions for installing the VoIPmonitor sensor (sniffer). The recommended method for all modern Linux distributions is to use the pre-compiled static binary.

Recommended Method: Static Binary Installation

A static binary includes all necessary libraries and is the quickest and most reliable way to get the sensor running on any supported Linux distribution with a kernel version of 2.6.18 or newer.

Step 1: Download the Correct Archive

First, download the latest stable binary for your system's architecture from the official website.

For 64-bit (x86_64) Systems (most common)

wget https://www.voipmonitor.org/current-stable-sniffer-static-64bit.tar.gz -O voipmonitor-sniffer.tar.gz

For 32-bit (i686) Systems

wget https://www.voipmonitor.org/current-stable-sniffer-static-32bit.tar.gz -O voipmonitor-sniffer.tar.gz

For ARMv6/v7 (e.g., Raspberry Pi)

wget https://www.voipmonitor.org/current-stable-sniffer-static-armv6k.tar.gz -O voipmonitor-sniffer.tar.gz

Step 2: Extract and Run the Install Script

The downloaded archive contains an installation script that automates the setup process.

# Extract the archive
tar xzf voipmonitor-sniffer.tar.gz

# Navigate into the newly created directory
# The 'cd voipmonitor-*' command will work regardless of the exact version number
cd voipmonitor-*-static

# Run the installation script with root privileges
./install-script.sh

The `install-script.sh` will:

• Copy the `voipmonitor` binary to `/usr/local/sbin/`.
• Copy the default configuration file to `/etc/voipmonitor.conf`.
• Copy the service startup script to `/etc/init.d/voipmonitor`.
• Attempt to enable the service to start on boot.

Step 3: Initial Configuration

After the installation, you must edit the main configuration file to connect the sensor to your database and set basic parameters.

nano /etc/voipmonitor.conf

At a minimum, configure your database connection settings and the network interface to monitor.

Step 4: Service Management (systemd)

Modern Linux distributions use `systemd` to manage services. Use the following commands to control the sniffer:

Start the service

systemctl start voipmonitor

Stop the service

systemctl stop voipmonitor

Check the service status

systemctl status voipmonitor

Enable the service to start automatically on boot

systemctl enable voipmonitor

For a more detailed `systemd` service file template and advanced options, please see the systemd guide.

Advanced & Special Installation Cases

Installing a Specific or Older Version

If you need a specific version (e.g., one that includes the Wireshark SS7 module), you can find historical releases on the VoIPmonitor SourceForge page.

Copy the download link for the desired file and use it with the `wget` command from Step 1.

Example for version 20.4.4 with the SS7 module

wget https://sourceforge.net/projects/voipmonitor/files/20.4/voipmonitor-wireshark-amd64-20.4.4-static.tar.gz/download -O voipmonitor-sniffer.tar.gz

Then proceed with the extraction and installation as described above.

Installing a Development Build (Manual Upgrade)

If instructed by the support team, you can manually upgrade to a new development build.

# Create a temporary directory and download the new build
mkdir /tmp/new-sniffer && cd /tmp/new-sniffer
wget https://download.voipmonitor.org/some-development-build.tar.gz -O sniffer.tar.gz
tar xzf sniffer.tar.gz

# Stop the current service and back up the old binary
systemctl stop voipmonitor
mv /usr/local/sbin/voipmonitor /usr/local/sbin/voipmonitor.backup

# Copy the new binary into place and start the service
cp voipmonitor-*-static/voipmonitor /usr/local/sbin/voipmonitor
systemctl start voipmonitor

Compiling from Source

For developers or special use cases, you can compile the sniffer from its source code. This is not the recommended method for most users.

Clone the master branch (stable)

git clone https://github.com/voipmonitor/sniffer.git

Or clone the develop branch (latest features)

git clone -b develop https://github.com/voipmonitor/sniffer.git

Then follow the instructions in the `README` file within the repository.

Uninstallation

To completely remove the VoIPmonitor sensor from a system, follow these steps.

For systemd-based Systems (Recommended)

# 1. Stop and disable the service
systemctl stop voipmonitor
systemctl disable voipmonitor

# 2. Remove the service files and binary
rm -f /etc/systemd/system/voipmonitor.service
rm -f /etc/init.d/voipmonitor
rm -f /usr/local/sbin/voipmonitor

# 3. Reload systemd to apply changes
systemctl daemon-reload

# 4. (Optional) Back up and remove the configuration file
mv /etc/voipmonitor.conf /etc/voipmonitor.conf.backup

# 5. (Optional) Delete the spool directory (contains all captured data)
# WARNING: This is irreversible!
# rm -rf /var/spool/voipmonitor

For older SysV-based Systems

Run the following commands to stop the service and remove its files:

/etc/init.d/voipmonitor stop
update-rc.d voipmonitor remove
rm -f /etc/init.d/voipmonitor
rm -f /usr/local/sbin/voipmonitor
mv /etc/voipmonitor.conf /etc/voipmonitor.conf.backup

AI Summary for RAG

Summary: This guide provides a step-by-step process for installing the VoIPmonitor sensor (sniffer). The primary and recommended method is using the pre-compiled static binary, which involves downloading the correct archive for the system architecture (64-bit, 32-bit, or ARM), extracting it, and running the included `install-script.sh`. The guide details the post-installation steps: editing `/etc/voipmonitor.conf` and managing the service with `systemctl` (start, stop, enable). It also covers advanced scenarios, such as installing a specific older version from SourceForge, manually upgrading to a development build, and compiling from source via `git clone`. Finally, it provides complete uninstallation procedures for both modern `systemd` systems and older `SysV` systems, including commands to remove binaries, configuration files, and service links. Keywords: install, installation, setup, sniffer, sensor, static binary, install-script.sh, download, wget, tar.gz, systemd, systemctl, enable on boot, start service, compile from source, git, development build, upgrade, uninstall, remove, SysV, init.d, arm, x86_64 Key Questions:

• How do I install the VoIPmonitor sniffer?
• What is the recommended way to install VoIPmonitor?
• Where can I download the latest static binary for the sensor?
• What does the `install-script.sh` do?
• How do I start the voipmonitor service and enable it on boot?
• How can I install an older version of the sniffer?
• How do I completely uninstall or remove the VoIPmonitor sensor?
• How to compile the sniffer from source code?

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