Vicidial backup and restore guide

VicidialSuppose you need to migrate or duplicate Vicidial data (campaigns, leads, phones and so on) from one Vicibox server to another. In case two Vicidial boxes of the same versions the process will be simpler. In case the source server has older Vicibox version than the destination one you will have to perform additional steps to get the destination server working. Both cases are covered in the article below. Continue reading

Vicidial: There is a time synchronization problem with your system, please tell your system administrator

time-synchronization-problem-with-your-system_vicidial

There is a time synchronization problem with your system, please tell your system administrator

In case you have this error upon installation or upgrade your Vicibox/Vicidial check the following:

  1. Using timedatectl utility make sure server’s timezone is set correctly and server’s date/time is correct. Set proper timezone if needed
  2. Check that timezone is correct in /etc/php7/apache2/php.ini. Set proper timezone if needed and restart Apache
  3. If it did not help check and compare time values in Vicidial database, server time and PHP time. Use the following command:

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Vicidial error: Code Expects Different Schema

Vicidial-warning-code-expects-different-schemaAfter database dump restoration taken from older Vicibox to the latest Vicibox 9.0.1 I got the following error in Admin -> System Settings section:

WARNING: Code expects different schema: 1585

It’s not possible to change or save any setting. The reason is obvious: Vicibox 9 has new and altered tables and functions so you will have to add them to the restored database before you can use system. Continue reading

FlexiSip installation and configuration on CentOS 7

Flexisip

Flexisip is a complete, modular and scalable SIP server suite written in C++11, comprising proxy, presence and group chat functions.

Flexisip offers an easy-to-install SIP server solution, offering all the features required to deploy your own SIP service tuned for mobile or desktop applications, “out of the box”.

Flexisip can be integrated into your SIP infrastructure for various purposes : Continue reading

Varnish error Backend fetch failed

Here are some generic tips on finding the actual cause of “Backend Fetch Failed” error shown by Varnish Cache. Continue reading

Managing of Varnish backends

This article explains how you can manage Varnish backends from command line, check varnish backend health status and mark backends as healthy or sick without restarting or reloading Varnish. Continue reading

Varnish Backend fetch failed Too many headers

This article describes particular case of Varnish error Backend fetch failed Too many headers. This error happens when there are too many headers being sent to backend server. Here is how you can troubleshoot and fix this error. Continue reading

FlexiSip installation and configuration on Debian 9

Flexisip

Flexisip is a complete, modular and scalable SIP server suite written in C++11, comprising proxy, presence and group chat functions.

Flexisip offers an easy-to-install SIP server solution, offering all the features required to deploy your own SIP service tuned for mobile or desktop applications, “out of the box”.

Flexisip can be integrated into your SIP infrastructure for various purposes : Continue reading

Flexisip error Failed to find shared library for backend mysql

I installed Flexisip using official documentation , installed additional components like MariaDB (MySQL) and Redis, performed initial setup of configuration files, created database and DB user.

I started flexisip services with

and by looking in /var/opt/belledonne-communications/log/flexisip/flexisip-conference.log I noticed the following error:

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Magento server performance configuration

magento-server-perofrmance-setupThere are best practices in Magento 2 performance configuration of operating system, MySQL, PHP and webserver. This article covers important configurations of all components that will speed up the Magento site.

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