Centos: Get a newer version of e2fsck

I got an error about e2fsck version. In my case the issue happened in Centos7, when I try to expand the disk of my VM in Cloudmin.

You will hit an error with your e2fsck version. You will need to download the latest source binary of e2fsprogs from your OS distributor and install it.

[ 17.0] Resizing (using virt-resize) to expand the disk to 8.0G
virt-resize: error: libguestfs error: resize2fs: e2fsck 1.42.9
/dev/sda1 has unsupported feature(s): metadata_csum
e2fsck: Get a newer version of e2fsck!

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MariaDB fails to start: Aria engine is not enabled or did not start

mysql-logo-imageAfter low space condition once happened on a server MariaDB failed to start with :

In /var/log/messages:

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Clean and reduce size of Zabbix database


After some time you may find that you Zabbix database become enormously big and consumes significant amount of disk space. Among really usefull data there is data that may be cleaned up and optimized in Zabbix database in order to reduce size of Zabbix database. Continue reading

Vicidial access forbidden to the recordings folder


I got this upon trying to download call recording in Vicidial on the lead’s page. I have Vicibox 11 installed in virtual machine on Cloudmin with Vicidial VERSION: 2.14-899a BUILD: 231109-2027 Continue reading

Asterisk vicidial WebRTC phone cannot connect

VicidialOn the newly installed Vicidial box I got problem connecting WebRTC phone to Asterisk.

I followed the setup guide here

In the Asterisk console I saw:

Problem setting up ssl connection: error:00000001:lib(0):func(0):reason(1), Internal SSL error
 ERROR[2203]: tcptls.c:179 handle_tcptls_connection: Unable to set up ssl connection with peer ‘’
[Jan 17 11:46:42] ERROR[2203]: iostream.c:552 ast_iostream_close: SSL_shutdown() failed: error:00000001:lib(0):func(0):reason(1), Internal SSL error

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MS SQL security audit: list all users and their permissions

When you need to find out your DB users and their permissions on DB objects use the following query to list all MS SQL users and their permissions on databases and views and get a report: Continue reading

Flash Operator Panel 2 Connecting to server error

FOP2-one-moment-pleaseThe case when FOP2 with HTTPS does not work and you can see “Connecting to server, attempt number ” message was described here

Another case when this error can happen is when you try to log in as an operator and access /fop2 path

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ViciBox 11 installation in Cloudmin

VicidialViciBox is worldwide popular callcenter solution. If you want to run ViciBox in virtual machine under Cloudmin you will need to perform a few additional steps to make running because there is no ready-to-go ViciBox image for Cloudmin available. Continue reading

Difference between BACPAC and DACPAC

A data-tier application (DAC) is a self-contained unit of MS SQL Server database deployment that allows packing SQL Server objects into a portable artifact called a DAC package. It is also known as a DACPAC.

BACPAC is simple to export a SQL Server database which will eventually require import to another server or even for longer-term retention.


A BACPAC includes the schema and data from the database.

DACPAC has only the schema and not the data.

Now we will see the difference between BACPAC and DACPAC Continue reading

Vicidial: How to update phones Server IP in bulk

To simultaneously update Server IP for all phones in ViCiDial, please log in to your MySQL (or PhpMyAdmin, if available) and run the following SQL statements:

where instead of “” specify your Vicidial Server IP.

Check also How to update passwords in bulk in ViciDial

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