Many modern websites rely on databases to store important data. When these databases get large, your server can slow down when there are a lot of requests (queries) that the database has to handle. Speeding these queries up requires knowledge of MySQL indexing.
Although the Premium Business Email has a constantly updated spam filter, legitimate messages may occasionally be mistaken for spam! If you find legitimate messages in your spam folder, you can whitelist (or safelist) the address, domain, or IP address so that email will be delivered to your inbox.
If you find that spam from certain senders, domains, or IP addresses is sneaking through the Premium Business Email spam filter, you can create a blacklist to block certain senders from being able to send you email.
The locate command is one of the best tools for finding files quickly by filename. This command reads one or more databases prepared by updatedb and writes files matching at least one of the patterns to standard output (one per line). You may need to install mlocate to enable this feature. This article provides instructions for installing mlocate on CentOS and Fedora.
In addition to using a spam filtering program like SpamAssassin, you can use remote block lists (RBLs, also called DNSBLs) to look for spam in your incoming email. RBLs are lists of IP addresses that are associated with spam email. Your server asks an RBL if the email sender IP is on its list of spam addresses. If it is, your server’s settings can reject the message and send it back with an error, accept the message and tag it for further spam filtering, or accept the message and deliver it to your inbox.
If you are using MySQL databases, you might need to occasionally check the version of MySQL that is installed on your server. It’s easy to check your MySQL version using either cPanel or the command line.
Rsync is a utility commonly found on Linux operating systems and is a remote and local file synchronization tool. rsync stands for remote sync. The rsync algorithm is used to minimize network usage by only moving portions of files that have changed. This tutorial will take you through the following: basic rsync usage, remote transfers, alternate SSH ports.
Installing the PHP Extension for Memcached is a simple process, this tutorial will show installation for Ubuntu operating systems. The installation is done through the command line using apt-get.
Install Memcached on CentOS or Fedora to boost dynamic web app speed by caching database content and reducing DB load. Root access required.
Making sure that your server software is up to date is one of the best ways to protect yourself from malicious attacks. This includes updating your database software, like MySQL. MySQL upgrades involve a number of steps, including planning, backups, upgrading binaries, upgrading tables, and cleanup.
Install Memcached on Ubuntu 12.04+ to speed up dynamic sites by caching database content. Root access is required for setup.