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How to enable and disable dangerous php functions | CWP

How to disable dangerous php functions

PHP switcher :

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /usr/local/php/php.d/disabled_function.ini

PHP-CGI selector :

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php53/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php54/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php55/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php56/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php70/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php71/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php72/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php73/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php74/usr/php/php.d/disabled_function.ini

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php80/usr/php/php.d/disabled_function.ini

PHP_FPM Selector :
** Don’t forget to restart php-fpm after changes

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm53/usr/php/php.d/disabled_function.ini && service php-fpm53 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm54/usr/php/php.d/disabled_function.ini && service php-fpm54 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm55/usr/php/php.d/disabled_function.ini && service php-fpm55 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm56/usr/php/php.d/disabled_function.ini && service php-fpm56 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm70/usr/php/php.d/disabled_function.ini && service php-fpm70 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm71/usr/php/php.d/disabled_function.ini && service php-fpm71 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm72/usr/php/php.d/disabled_function.ini && service php-fpm72 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm73/usr/php/php.d/disabled_function.ini && service php-fpm73 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm74/usr/php/php.d/disabled_function.ini && service php-fpm74 restart

echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm80/usr/php/php.d/disabled_function.ini && service php-fpm80 restart

How to enable back the dangerous php functions

To enable it back, simply delete disabled_function.ini file for the PHP version you want and restart apache/php-fpm.

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wget Cron Jobs

The wget command is used for downloading files from remote servers. It’s also used to triggers server side scripts using the cron jobs.

To download a single file

wget https://domain.com/filename.zip

This command will download a file, and name it filename.zip(which is after the last / )

Use -O to specify the target local file name, like this

wget -O /home/useraccount/public_html/targetname.zip https://domain.com/filename.zip

This command will download a file, and name it targetname.zip

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How to convert a dynamic cms website to a static website?

Using HTTrack we can convert any website to a static website

  • Download the open source tool from http://www.httrack.com/page/2/en/index.HTML
  • Choose the version compatible with your operating system.
  • Install and launch the application from your computer

How to Convert a WordPress Website to a Static HTML Website?

Using a WordPress Plugins

How to Convert a Drupal Website to a Static HTML Website?

Using Drupal module to export some or all of your site as static HTML.

 

———-
Upload your static pages to GitHub.

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How to change the IP Address of CWP Server

  • If you have CWPpro licence, first change IP to new one at https://support.centos-webpanel.com/clientarea.php and then follow following steps
  • Create/update reverse DNS in your VPS provider. That would be your new hostname.
  • Create nameservers with new IP in Domain registrar.
  • Go to CWP Settings and then IP Manager and add the new IP address with Netmask and Gateway. Note that you have to configure the VPS with new IP and test it accordingly.
  • Go to Server Settings and then Change Hostname and replace New Hostname with rDNS/PTR records of your Default/New IP. Confirm that everything here looks ok.
  • Go to User Accounts and then List Accounts and you need to go to “Edit Account” section of all accounts on your server and replace IP field with Default/New IP Address (you also must check the “Update DNS Zone” checkbox). Test one account first and if it works then go for all accounts. SSL may cause but will be resolved automatically. You may have to use VPN to test.
  • Go to CWP Settings and then Edit Settings and replace Shared IP field with Default/New IP Address. Check the “Rebuild vHosts” check box and save changes.
  • Go to DNS Functions and then Edit Nameservers IPs and replace all NS1 and NS2 IPs with Default/New IP Address.
  • After completing all of the above, rebuild WebServer in order to prevent future issues , So you need to Go to Apache Settings and then Apache Re-Build and recompile your apache webserver
  • If you were using Varnish Cache or Nginx Reverse Proxy you must have to Go to Apache Settings and then Select WebServers and select Default Web Servers which you were using and Click on “Save & Rebuild Configuration“.
  • if you were using MailServer you should Rebuild your MailServer. Go to Email and then MailServer Manager and Rebuilt Mail Server. If you need to restart all mail server services (Postfix, ClamAV, Amavis, Spamassassin, Dovecot) you can do that here. 
  • Reboot your server
  • Enjoy!

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OJS Email Sending Problem

  • There was a problem sending an email message. Please try again later, or contact your system administrator.

At first, check whether Principal Contact details were added in Journal. Then go for Step One.

Step One

Turn on SMTP in config.php

[email]

; Use SMTP for sending mail instead of mail()
 smtp = On

; SMTP server settings
 smtp_server = mail.example.com
 smtp_port = 25

; Enable SMTP authentication
; Supported smtp_auth: ssl, tls (see PHPMailer SMTPSecure)
 smtp_auth = ssl
 smtp_username = username
 smtp_password = password
;

You contact hosting provider to get the SMTP details

NB: If the above setting does not work anyway, then go for adding envelop sender.

Step Two

Allow envelop sender

; Allow envelope sender to be specified
; (may not be possible with some server configurations)
 allow_envelope_sender = On

; Default envelope sender to use if none is specified elsewhere
 default_envelope_sender = my_address@my_host.com

; Force the default envelope sender (if present)
; This is useful if setting up a site-wide no-reply address
; The reply-to field will be set with the reply-to or from address.
 force_default_envelope_sender = On

Make sure to match the domain in your default_envelope_sender with the domain of OJS installation. If it doesn’t match this increases the spam rating.