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How to install Asterisk 18 on CentOS 8

Asterisk is an open-source PBX software. It is used to manage SIP sessions between endpoints. Asterisk is a very powerful server that can be used to implement PBX, IVRs, VoIP gateways and many more features. It supports many VoIP protocols such as SIP(Session Initiation Protocol) and MGCP(Media Gateway Control Protocol. It also supports many hardware devices such as analogue cards, PRI cards, etc.

Today we will be installing Asterisk 18.0.0 on Centos 8, which is the latest Asterisk release at the time of writing. Before we jump to the installation let us look at the major changes which the new release has brought with it.

Major Changes From Asterisk 17 to 18

Codec – H.265/HEVC is now an officially supported video codec. It can be used by specifying “h265” in the allow line.

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How to install Asterisk 18 on Debian 10

Asterisk is an open-source PBX software. It is used to manage SIP sessions between endpoints. Asterisk is a very powerful server that can be used to implement PBX, IVRs, VoIP gateways and many more features. It supports many VoIP protocols such as SIP(Session Initiation Protocol) and MGCP(Media Gateway Control Protocol. It also supports many hardware devices such as analogue cards, PRI cards, etc.

Today we will be installing Asterisk 18.0.0 on Debian 10, which is the latest Asterisk release at the time of writing. Before we jump to the installation let us look at the major changes which the new release has brought with it.

Major Changes From Asterisk 17 to 18

Codec – H.265/HEVC is now an officially supported video codec. It can be used by specifying “h265” in the allow line.

Logger – A new formatter “plain” has been added. It will always print file, function and line number and never prints the color controlled characters. It can be used in logger.conf

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48 Hours with APIBAN

Summary

In this experiment, we will be testing the effectiveness of the APIBAN and see if it can single-handedly protect our server from the bad SIP traffic. It will be integrated with Asterisk PBX running on CentOS 7.

We installed Asterisk-18-rc1 on Centos 7 to collect the stats for APIBAN. LibreNMS was used to monitor all the metrics of the server running Asterisk. Asterisk PBX was configured with very basic configuration which is as follow –
1. It accepts all the SIP invites, pick up call and play an audio file (tt-monkeys)
2. Several SIP peers were configured with no password on them.

The server in the current state without APIBAN or any firewall was left open for 2 days i.e from September 18, 2020 to September 20, 2020 , The following graphs show the metrics captured by LibreNMS during that time frame.

Overall Network Traffic from September 18, 2020, to September 20, 2020
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How to install Asterisk 17 on CentOS 8

Asterisk is an open-source PBX software. It is used to manage SIP sessions between endpoints. It is a very powerful server that can be used to implement PBX, IVRs, VoIP gateways and many more features. It supports many VoIP protocols such as SIP(Session Initiation Protocol) and MGCP(Media Gateway Control Protocol. It also supports many hardware devices such as analogue cards, PRI cards, etc.

Today we will be installing Asterisk 17.1.0, which is the latest Asterisk release at the time of writing. It is the standard release meaning that it will receive regular updates which will focus more on new features and a little less on fixes. If you want a more stable framework we would recommend you to install Asterisk version with LTS(Long Term Support). They focus mainly on stability and user experience and not on the latest features that standard edition brings. Nonetheless, let us begin with the installation.

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How to install Asterisk 17 on Debian 10

Asterisk is a open source PBX software. It is used to manage SIP sessions between endpoints. It is a very powerful server that can be used to implement PBX, IVRs, VoIP gateways and many more features. It supports many VoIP protocols such as SIP(Session Initiation Protocol) and MGCP(Media Gateway Control Protocol. It also supports many hardware devices such as analogue cards, PRI cards, etc.

Today we will be installing Asterisk 17.1.0, which is the latest Asterisk release at the time of writing. It is the standard release meaning that it will receive regular updates which will focus more on new features and a little less on fixes. If you want a more stable framework we would recommend you to install Asterisk version with LTS(Long Term Support). They focus mainly on stability and user experience and not on the latest features that standard edition brings. Nonetheless, let us begin with the installation.

Step 1: Pre-Requisites

Before we begin with the Asterisk 17 installation, we need to make sure that our packages are up to date.

apt update && apt upgarde
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