Category: Plesk

To bakcup a site using SSH, login to server as user root, run the command

plesk bin pleskbackup --domains-name example.com --output-file="/root/example.com.zip" -v

The Plesk Administrator password is a crucial credential that grants access to the Plesk control panel, where you manage your website, domains, databases, and other essential server settings. In this article, we will walk you through the step-by-step process of resetting the lost password.

To initiate the process of resetting your lost Plesk Administrator password, login to the server using SSH as user root. If you don’t have root SSH, you may use “sudo su” command to become user root.

Use the following command to reset the Plesk admin password

plesk bin admin --set-admin-password -passwd 'NEW_PW_HERE'

Or

plesk bin user -u admin -passwd 'NEW_PW_HERE'

Once password is retested, you can login at

https://server-hostname-or-ip:8443
User = admin
Password = use password you set above.

If you have SSH root access and want to login with out a password, you can use the command

plesk login

It will generate a special link, that can be used to auto login to plesk with out a password.

Back to Plesk

Cloudflare is a popular Content Delivery Network (CDN) that can greatly improve website performance and security. When using Cloudflare CDN, the server will report Cloudflare server IP as the visitor IP address. This is because when a visitor visit your website, they are visiting cloudflare server. Cloudflare server will fetch web page from your server, serve it to the visitor. So all access to your server is coming from Cloudflare server, not the real visitor. Cloudflare forward real visitor IP addresses in an HTTP Header “CF-Connecting-IP”. To make Apache show real visitor IP addresses, you can use the Apache module remoteip.

Enable Apache module remoteip in Plesk

To Enable remoteip module in Plesk login to Plesk as user admin or root. Go to

Plesk Admin > Tools & Settings

Under “General Settings”, click on “Apache Web Server”

On the next page, you will see all available Apache modules. To activate remoteip module, select the checkbox left side of remoteip and click the “OK” button.

Configure remoteip module

Create file

vi /etc/httpd/conf.d/remoteip.conf

In the file, Add

RemoteIPHeader CF-Connecting-IP
RemoteIPTrustedProxy 173.245.48.0/20
RemoteIPTrustedProxy 103.21.244.0/22
RemoteIPTrustedProxy 103.22.200.0/22
RemoteIPTrustedProxy 103.31.4.0/22
RemoteIPTrustedProxy 141.101.64.0/18
RemoteIPTrustedProxy 108.162.192.0/18
RemoteIPTrustedProxy 190.93.240.0/20
RemoteIPTrustedProxy 188.114.96.0/20
RemoteIPTrustedProxy 197.234.240.0/22
RemoteIPTrustedProxy 198.41.128.0/17
RemoteIPTrustedProxy 162.158.0.0/15
RemoteIPTrustedProxy 104.16.0.0/12
RemoteIPTrustedProxy 172.64.0.0/13
RemoteIPTrustedProxy 131.0.72.0/22
RemoteIPTrustedProxy 2400:cb00::/32
RemoteIPTrustedProxy 2606:4700::/32
RemoteIPTrustedProxy 2803:f800::/32
RemoteIPTrustedProxy 2405:b500::/32
RemoteIPTrustedProxy 2405:8100::/32
RemoteIPTrustedProxy 2a06:98c0::/29
RemoteIPTrustedProxy 2c0f:f248::/32

Save and exit the file. Restart Apache web server.

systemctl restart httpd

Now Apache will see the real IP address of visitors coming from Cloudflare CDN.

Back to Plesk

To upgrade Plesk control panel to the latest version on Windows Server, do the following

1) Log in to Windows Server using RDP.

2) Start command prompt as user Administrator.

3) Update Pleks by applying the latest patches to the current version of plesk.

plesk installer update

In the command prompt.

4) Upgrade plesk to newer version with the command

plesk installer upgrade

This will show a list of Plesk versions available, you need to specify release_id, for example

5) In case you get any error related to the extension, remove it and install it again after the upgrade is done. To remove a plugin, use the command

plesk bin extension --uninstall EXTENSION_NAME_HERE

Plesk Upgrade Errors

During the upgrade, if you get the following error

STDERR:Error in cURL request: error setting certificate verify locations:
  CAfile: C:\Plesk\admin\conf\cacert.pem
  CApath: none

Download the file

http://curl.haxx.se/ca/cacert.pem

Replace C:\Plesk\admin\conf\cacert.pem with the downloaded file.

On a Debian 8 server with Plesk control panel, on the Plesk login page, I got the following error message

500 Plesk\Exception\Database
DB query failed: SQLSTATE[HY000]: General error: 23 Out of resources when opening file '/tmp/#sql_353d_0.MAI' (Errcode: 24 "Too many open files"), query was: DESCRIBE `sessions`

This error is due to MySQL open_files_limit value is set low. To verify, run the command

SHOW VARIABLES LIKE 'open%';

You need to increase the limit.

On Debian 8, edit the file

vi /etc/mysql/my.cnf

Find

[mysqld]

Add below

open_files_limit = 102400

Restart MySQL

systemctl restart mysql

If you have other version of Operating System, see MariaDB Change Open Files Limit.

Back to Plesk

Plesk server has an SSH Terminal feature, that allows you to access the server console and run commands. This is useful when the firewall blocks the SSH port or you only have the Plesk admin password.

Login to Plesk Control Panel as user root or admin.

On the sidebar, click on “Tools and Settings”.

Click on “SSH Terminal” link, you will be logged in as SSH user root.

See Plesk

After a Plesk server crash, I migrated files over to a new server. When I log in to Plesk and click any domain name, I get the following error

Error: There is no IP address 82.165.179.137 in the pool.

The error is fixed by running the command

plesk bin subscription -u DOMAIN_HERE -ip 82.165.179.137

When using Cloudflare CDN, visitors come to the Cloudflare server and Cloudflare fetches pages from your server and sent to the visitor. Your server only sees Cloudflare’s IP address. To fix this, we can use the Apache module remoteip.

On Ubuntu (or Debian) server running Plesk control panel with Apache webserver (no Nginx) do the following to restore real visitor IP address when using Cloudflare CDN.

Enable mod_remoteip

a2enmod remoteip

Create file

vi /etc/apache2/conf-enabled/remoteip.conf

Add the following to the file

RemoteIPHeader CF-Connecting-IP
RemoteIPTrustedProxy 173.245.48.0/20
RemoteIPTrustedProxy 103.21.244.0/22
RemoteIPTrustedProxy 103.22.200.0/22
RemoteIPTrustedProxy 103.31.4.0/22
RemoteIPTrustedProxy 141.101.64.0/18
RemoteIPTrustedProxy 108.162.192.0/18
RemoteIPTrustedProxy 190.93.240.0/20
RemoteIPTrustedProxy 188.114.96.0/20
RemoteIPTrustedProxy 197.234.240.0/22
RemoteIPTrustedProxy 198.41.128.0/17
RemoteIPTrustedProxy 162.158.0.0/15
RemoteIPTrustedProxy 104.16.0.0/12
RemoteIPTrustedProxy 172.64.0.0/13
RemoteIPTrustedProxy 131.0.72.0/22
RemoteIPTrustedProxy 2400:cb00::/32
RemoteIPTrustedProxy 2606:4700::/32
RemoteIPTrustedProxy 2803:f800::/32
RemoteIPTrustedProxy 2405:b500::/32
RemoteIPTrustedProxy 2405:8100::/32
RemoteIPTrustedProxy 2a06:98c0::/29
RemoteIPTrustedProxy 2c0f:f248::/32

Restart Apache

systemctl restart apache2

Now the site will show real visitor IP. You can verify with phpinfo() page, and search for RMOTE_ADDR to see real visitor IP.

Back to Cloudflare

open_basedir is a PHP security feature. With open_basedir enabled, your web application can only access files within specifically allowed folders. If your application tries to access files from a folder that is not allowed, the application fails with an error message.

To disable open_basedir in Plesk do the following.

1. Login to your Plesk Control Panel.
2. From the left menu click on Websites & Domains.
3. Find the domain name for which you need to disable PHP open_basedir
4. Click on the domain name to expand.
5. Click on PHP Settings.
6. On PHP Settings page, find open_basedir. From the drop down select None.

Method 2

To do this in the command line, do the following

create a file vhost.conf in conf folder of the site.

vi /var/www/vhosts/yourdomain.extn/conf/vhost.conf

Add the following and save the file.

php_admin_flag engine on
php_admin_value open_basedir none

Now run

/usr/local/psa/admin/bin/httpdmng --reconfigure-domain yourdomain.com

This will disable open_basedir.

See Plesk