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Knowledge base


  • Installing redmine on VPS Centos 7
  • Channel flood protection (incoming band limit)
  • Working with the MariaDB database through the HeidiSQL editor for Windows via SSH
  • Installing and configuring phpMyAdmin on Lemp Debian 12
  • Setting the Calendar for Roundcube Webmail
  • Installing and configuring SARG on a SQUID proxy server
  • Spam protection with Postfix
  • Configuring SPF Checking in Postfix
  • Installing and configuring mailbox quotas on a Dovecot mail server
  • SEO URL optimization in nginx
  • Installing and configuring the SpamAssasin anti-spam filter and grouping messages into the Spam folder for Postfix Ubuntu service
  • Replacing .php and .html in links
  • Transferring and syncing mail via imapsync
  • Installing and configuring phpMyAdmin on Ubuntu 20.04
  • Setting up a mail collector in postfixAdmin
  • Installing and configuring vsftpd FTP server on Ubuntu 20.04
  • Centos 8 update error: failed metadata repo appstream centos 8
  • Setting a password for apache (htaccess and htpasswd)
  • PTR records
  • Resetting root password in Centos 7 and Centos 6