CDN Content delivery network - a network of servers placed in different regions around the world. The purpose of using a CDN is to enable a website visitor to load static resources such as images and javascript files from a server geographically close to the visitor.

cPanel The control panel we use on all our web hosting accounts.

DNS Domain name system - can be seen as a phone book for the Internet that couples a domain name (such as www.example.com) with an IP address (e.g. 192.0.2.26), which is really being used for the communication. It has been set up so that Internet users don't have to memorise IP addresses.

DNS server A server translating domain names to IP addresses.

DNSSEC A technical feature making DNS more secure via cryptographic signing with keys. DNSSEC protects from fraudulent DNS replies by validating each record with specific validation records.

Domain An address or a name on the Internet, such as oderland.se or example.com. Domains are being used to facilitate surfing the web, so that you do not have to memorise IP addresses. Anyone can register a domain name and use it for websites, email, servers, etc.

FQDN Fully qualified domain name - also called absolute domain name. Complete name of e.g. a website (www.oderland.se) or a server (server.example.com).

FTP File transfer protocol - a way to transfer files over the Internet, for example uploading a website to a server.

HTML HyperText Markup Language - a markdown language used to generate websites on the Internet. HTML gives instructions as to how a computer program (such as a web browser) shall present text, images, layout, links, etc.

HTTP Hypertext transfer protocol - The communication protocol which is being used to transfer web pages on the Internet.

IMAP4 Internet message access protocol - A way to read email on an email server. When an email client (such as Outlook, Thunderbird, etc) is set up to connect to an email account via IMAP the program will show the messages available on the server. The messages are thusly stored on the server, in(...)

IP address A numerical label assigned to each device connected to a computer network, such as the Internet (e.g. 192.0.2.26).

MySQL A database management system using the query language SQL to receive and input data from the database. Many different websites use MySQL for content management, such as websites based on WordPress.

PHP PHP: Hypertext Preprocessor - a programming language primarily used on web servers for running websites with dynamic content (i.e. content generated from e.g. a database or from user form data).

POP3 Post office protocol - a way to read email from an email server. When an email client (such as Outlook, Thunderbird, etc) is set up to connect to an email account via POP3 the program will download the messages available on the server. The messages are thusly stored in the email client on the(...)

Registrant The owner of a domain name.

Registrar A company authorized to register and renew Internet domain names, Oderland is one such company.

Registry Organisation in charge of TLDs, and has the power to let companies become registrars. Internetstiftelsen i Sverige is an example of a registry, and they manage the .se and .nu TLDs.

SMTP Simple mail transfer protocol - the most common method used for sending email messages from a server. To send email via Oderland, you must log in with username and password.

SSH Secure shell - a cryptographic method for connecting to network services securely over an unsecured network.

SSH key SSH keys consist of a matched pair of a public and a private key. The public key is placed on all servers you wish to connect to. The private key should remain on your machine(s) being used for connecting to the servers. Using SSH keys for logging in is much more secure than using a plain(...)

TLD Top-level domain - one of the domains at the highest level in the hierarchical Domain Name System of the Internet. Examples are .com, .se, and .nu.

TTL Time to live - defines the life time of e.g. a DNS record.

URL Uniform resource locator or web address - a series of letters and other characters identifying a specific page on the Internet, for example https://www.oderland.se/support/.

WordPress Among the most popular blog and content management systems (CMS) on the Internet of today. It's being used for millions of websites, blogs and webshops. WordPress is written in PHP and uses the database MySQL for database storage.