How to check if Python script engine is enabled
We can check using the default Parallels Plesk Panel domain page content (http://domain.tld/index.html) - then by the “Python” item.
The test looks successful if a page with a list of environment variables is shown.
Test can be done using a simple script like this.
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
# enable debugging
import cgitb
cgitb.enable()
print “Content-Type: text/plain;charset=utf-8″
print
print “Hello World!”
It is necessary to put the content into a text file and save in the domain web-accessible folder (like $HTTPD_VHOSTS_D/domain.tld/httpdocs) on the server with .py extension (test.py for example). Then try to open the file via browser by the http://domain.tld/test.py URL.
The test looks successful if a page shows the “Hello World!” string. If an error or full script listing is visible, it means that Python engine is not configured for the domain properly.
Reference: http://parallels.com/
Unable to open configuration file /etc/psa/psa.conf: Permission denied
unable to open configuration file /etc/psa/psa.conf: Permission denied
Such errors are reported when Panel spam-filter processes incoming mail to mailbox with the Spamassasin feature enabled. Error is reported because spam-filter hook has no permission to access files in the /etc/psa directory. However, Spamassassin still processes messages correctly so this error does not mean Spamassassin is not working.
To workaround the issue it is possible to add the execute permissions for the /etc/psa folder.
Reference: http://parallels.com/
Ports need to be opened for Plesk services
Generally it depends on what services are running on the server. All the default ports which can be used by Plesk/services are listed below:
#20 ftp-data
#21 ftp
#22 ssh
#25 smtp
#53 dns (TCP and UDP)
#80 http (web server and Plesk updater)
#106 poppassd (for localhost only)
#110 pop3
#113 auth
#143 imap
#443 https
#465 smtps
#587 mail message submission
#990 ftps
#993 imaps
#995 pop3s
#3306 mysql
#5224 (outgoing connections only) plesk-license-update
#5432 postgres
#8443 plesk-https
#8880 plesk-http
#9080 tomcat
If required you can always reset your default firewall settings via the AccountCenter.
Reference: http://parallels.com/
Changing Spamassassin to check emails larger than 250KB
Spamassassin by default will not check emails larger than 250 KB. This is limited to prevent spamassassin from generating a large load on the server.
If you would like to change this setting to a higher value you can edit the following file:
vi /usr/local/psa/bin/psa-spamc
and change this line to a higher value:
MAX_SIZE=256000 # max letter size to filter
Spamassassin will use the new value immediately with no need to restart any services.
Reference: http://parallels.com
Restarting services in Plesk
If a service, such as Apache, has stopped you may need to restart the service.
The following guide shows you how to start/stop/restart system services from within Plesk.
From Plesk Services Management
1. Login to Plesk.
2. Click on Server.
3. Click on Service Management.
Now you can start|stop|restart the service of your choice.
From Virtuozzo System Services
1. Login to Plesk.
2. Click on Virtuozzo.
3. Click on System Services.
4. Now you can start|restart|stop the service of your choice. You can also enable the Autostart feature.
