Featured Articles Today:
[HUB] Mail - Message can not be delivered at this time
Occurs while sending a mail message. This error may appear when there is a misconfiguration in mail server/webmail settings.
To fix general issues ...
2
Unable to install Let's Encrypt SSL: Invalid response from example.com: 404 Not Found
Applicable to:Plesk for Linux
Symptoms
Unable to install Let's Encrypt SSL with "404 not found", "Timeout" or "Coul...
7
Let's encrypt installation fails with 'Challenge marked as invalid' error
Applicable to:
Plesk
Symptoms
Unable to install SSL certificate from Let's Encrypt extension. The following error is shown:
PLESK_ERROR: Challe...
4
[HUB] Mail - Relay Access Denied
Applicable to:Plesk for Linux
Occurs while sending a mail message. This error may appear when there is a misconfiguration in mail server/webmail s...
7
ModSecurity failed to update rule set: modsecurity_ctl failed: HTTP Error 403: Forbidden
Applicable to:
Plesk for Linux
Symptoms
A ModSecurity rule set cannot be updated with the following error in Plesk:
Error: Failed to update the...
4
How to receive Plesk product updates information?
Question
How to receive Plesk product updates information?
Answer
Since Plesk Onyx, all the release notes available on Plesk Home page clicking &qu...
10
[HUB] 500 - Internal Server Error
Table of contents
Plesk is showing "500 - Internal Server Error"
Website is showing "500 - Internal Server Error"
Webmail i...
4
End of Life announcement: CentOS 5, CloudLinux 5, Ubuntu 12.04.5 LTS
Applicable to:Plesk for Linux
General Information
Following the Operation Systems vendors policy, we stop supporting Plesk installations runnin...
4
Plesk Onyx 17.5
Applicable to:Plesk Onyx 17.5Plesk Onyx 17.5 for LinuxPlesk Onyx 17.5 for Windows
23 March 2017
Plesk Onyx 17.5
[+] Extension Catalo...
12
[HUB] 503 Service Unavailable
Applicable to:Plesk
Table of contents
Plesk is showing "503 Service Unavailable" error
Linux general trouble...
3
[HUB] 403 Forbidden
Applicable to:
Plesk
Table of contents
Plesk or its components show 403 Forbidden
Incorrect user or permissions are set to any file used by
...
3
[Security] CVE-2015-8994 PHP OpCache vulnerability
Applicable to:Plesk 12.5 for LinuxPlesk Onyx for Linux
General information
The vulnerability was registered on March, 2. It affects installatio...
3
[HUB] 99: Cannot assign requested address and AH00072: make_sock: could not bind to address
Table of contents
Unable to start Nginx with 99: Cannot assign requested address error
Nginx service cannot bind to configured port as another pr...
0
How may I receive news about important updates from Plesk?
You can follow sections and articles in the knowledge base. When you follow content, you are subscribing it, so that you will be notified by email ...
0
[HUB] 504 Gateway Timeout
Table of contents
Plesk is showing "504 Gateway Timeout" error
Plesk's engine (sw-cp-server, sw-engine) is based on Nginx, so all the 5...
4
[Security] Cloudflare vulnerability: memory leak caused by parser bug
Situation
Cloudflare issued a vulnerability alert on 2017-02-18: memory leak caused by parser bug.
Impact
Vulnerability in Cloudflare parser (which...
0
[HUB] 502 Bad Gateway
Applicable to:Plesk
Table of contents
Plesk is showing "502 Bad Gateway" error
Plesk's engine (
sw-cp-server, sw-en...
3
[Security] PHPMailer vulnerability: CVE-2016-10033
Applicable to:Plesk
Overview
An
independent research
uncovered a critical vulnerability in PHPMailer that could potentially be used by (...
9
How can I submit a request to Plesk support?
In continuous efforts to improve our services and customer experience, we have changed our ticketing system on December 18, 2016.
Here you can find...
16
How to Install Plesk for Linux
Applicable to:
Plesk for Linux
Question
How to install Plesk for Linux?
Answer
Note: For Plesk installation, you require already configured Lin...
198
ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] No such file or directory
Applicable to:
Plesk for Linux
Table of contents
Plesk is showing "ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] No such file...
18
Multiple PHP Versions in Plesk 12 and higher Out of the Box
Applicable to:
Plesk 12.5 for Linux
Plesk Onyx for Linux
Plesk 11.x for Linux
...
41
How to sync content between source and destination servers after migration
Applicable to:
Plesk 12.5 for Linux
Plesk Onyx for Linux
Plesk Onyx for Windows
...
11
Plesk for Linux services logs and configuration files
Applicable to:
Plesk for Linux
Release notes
This article's sole purpose is providing information regarding the services that Plesk interacts w...
132
How much disk space is needed for migration on source and destination servers
Applicable to:Plesk 12.5 for LinuxPlesk Onyx for LinuxPlesk Onyx for WindowsPlesk 12.5 for Windows
Question
How much disk space is needed on so...
2
How to check migration status
Applicable to:
Plesk 12.5
Plesk Onyx
Question
How to check a migration status?
Answe...
4
[HUB] Apache default page is shown
Applicable to:
Plesk for Linux
Symptoms
Few or all of the domains are showing the Apache default page (not the Plesk default page).
Cause
Apach...
6
Which Ports Need To Be Opened for all Plesk Services to Work with a Firewall?
Applicable to:
Plesk for Windows
Plesk for Linux
Resolution
Generally, the ports that n...
37
How to get or reset password for admin account in Plesk
Applicable to:
Plesk for Linux
Symptoms
The password for the
admin
user in Plesk has been lost. How to get it?
Resolution
First of all, co...
34
Plesk Migrator Extension. Known limitations
Applicable to:
Plesk
Plesk Migrator Extension was introduced in Plesk 12.5 and is actively developed right now. Below is the list of known limi...
1
[HUB] Website shows Plesk default page
Applicable to:Plesk
General information
This issue occurs when Plesk server cannot find a configuration for the requested website/webmail, so i...
0
What is the root password for MySQL?
Applicable to:
Plesk for Windows
Plesk for Linux
Question
What is the root password for...
36
How to enable multiple PHP versions in Plesk for Linux
Applicable to:
Plesk 12.5 for Linux
Plesk 11.x for Linux
Plesk 12.0 for Linux
...
14
Unable to access Plesk: Access denied for user 'admin'@'localhost' (using password: YES)
Applicable to:
Plesk 12.5 for Linux
Plesk 11.x for Linux
Plesk 12.0 for Linux
...
13
Plesk Help HUB
Applicable to:
Plesk
Since Plesk 12.5 we started developing Plesk Documentation and Help Portal where you can find documentation , release...
11
Plesk available editions and differences between them
Applicable to:
Plesk 12.5 for Linux
Plesk Onyx for Linux
Plesk Onyx for Windows
Plesk 12.0 for Windows
Plesk 12.0 for Linux
Plesk 12.5 for Window...
102
How to check whether a domain has a correctly set SPF record?
Applicable to:
Plesk for Linux
Question
How to check whether a domain has a correctly set SPF record?
...
43