Knowledge Base

Unable to reconfigure domain on Plesk server: Wrong variable to subsitute: webAppFirewallSettings

Symptoms

After update to the Plesk Obsidian 18.0.32, one of the following errors is displayed while making changes to the configuration of Plesk objects that assume Apache reconfiguration:

PLESK_ERROR: New files of configuration for Apache web server were not built due to errors in configuration templates:
Template processing failed: file = /usr/local/psa/admin/conf/templates/custom/server.php, error = Template_Exception:
[Template_Variable_Server_WebServer] Wrong variable to subsitute: webAppFirewallSettings

PLESK_ERROR: New files of configuration for Apache web server were not built due to errors in configuration templates:
Template processing failed: file = /opt/psa/admin/conf/templates/default/domainVhost.php, error = Template_Exception:
[Template_Variable_Domain_PhysicalHosting] Wrong variable to subsitute: webAppFirewallSettings file: /opt/psa/admin/plib/Template/Processor.php line: 28 code: 0

Cause

Product issue:

#PPPM-12586 "In Plesk Obsidian 18.0.32 and later, Apache configuration can no longer cause the webAppFirewallSettings variable error being shown in the Plesk interface."

Fixed in:
- Plesk Obsidian 14 December 2020 (Linux)

Resolution

Please consider updating your server:

How to install Plesk updates

Workaround

If update is not possible for some reason you may try the following

workaround

Until the bug is fixed, apply the following workaround:

Connect to the server via SSH
Replace all webAppFirewallSettings with apacheWebAppFirewallSettings:

# sed -i ‘s/webAppFirewallSettings/apacheWebAppFirewallSettings/g’ /usr/local/psa/admin/conf/templates/custom/*.php
Rebuild web server configuration files:

# plesk repair web -y