Nexcess Knowledge Base

Learn how to migrate an email account with IMAP from a former hosting provider to your current hosting provider, such as Nexcess.

A chain of SSL certificates contains all of the SSL certificates (root, intermediate, and end user) issued by a Certificate Authority (CA) required to verify the subject in the hierarchy of trust.

A Certificate Signing Request (CSR) is a block of encrypted text created on the server that will use an SSL certificate. A Certificate Authority (CA) will use the CSR to create your SSL certificate.

Multi-domain SSL certificates — or Subject Alternative Name (SAN) certificates — allows one IP address to serve multiple domains and subdomains, though all of those domains must have the same owner.

Internet Corporation for Assigned Names and Numbers (ICANN) requires that all domain owners verify their WHOIS information. Update domain details using your OpenSRS account and inform Nexcess staff.

SpamAssassin is a spam filter, which uses heuristics, or pattern recognition, to identify spam. It is an open source and free application designed to filter spam in email and web server applications.

The Comodo UserTrust Subscriber Agreement is a binding legal document detailing your rights and obligations as a user of the Comodo UserTrust logo and services.

How content delivery network (CDN) services work and definitions for specific terms commonly associated with CDN.

How to use our website to purchase a non-cloud, shared hosting plan for Magento or WordPress.

Learn how Nexcess clients on physical (non-cloud) servers can install ExpressionEngine using SiteWorx. This method requires SSH access. See the Nexcess Knowledge Base for more details regarding SSH.