1 Unique IP's is always included; only fill out this field if you need more.
When computers communicate over the internet, maybe with the help of several different protocols. One of the best known is the IP (Internet Protocol) address where the IP address can be likened to a computer's address. Having multiple IP addresses may be advantageous when one wants to have multiple connections to a server which is completely separated. Tex one for the public website and another for access to edit the server.
This is set up in front of the server and prevents unwanted connections. Having external firewalls offloads your server when the server does not need to inspect each packet to determine if they are qualified or not.
80-90% of all mail is estimated to be spam. To avoid all these emails we have sophisticated filters that figures out what is spam or not.
Allows you to change DNSen on an IP address in a rear-facing DNS lookup. A must for any serious mail servers.
Central Processing Unit (CPU) is the hardware within a computer system which carries out the instruction of a computer program by performing the basic arithmetical, logical, and input/output operations of the system.
Hard drives are available in several variants such as SATA, SAS and SSD where everyone is used to store data. The difference between these is a balance between performance and storage. SATA is good for storing large files. SAS or SSD however, are better for the storage of information that changes frequently.
Random Access Memory (RAM) is used to cache data before it is written down to the hard drive. It also stores information that is currently in use or for certain applications that require many small reads very frequent example a database.
To increase the reliability and performance you can connect multiple hard drives in a RAID. There are several different types of RAID levels, but the most commonly used in servers is 1, 5 or 10.
RAID1: Data is written identically to two drives, thereby producing a "mirrored set"; at least two drives are required to constitute such an array.
RAID5: Distributes parity along with the data and requires all drives but one to be present to operate; the array is not destroyed by a single drive failure. Upon drive failure, any subsequent reads can be calculated from the distributed parity such that the drive failure is masked from the end user.
RAID10: Data is written in stripes across the primary disks and then mirrored to the secondary disks. A typical RAID 10 format consists of four drives. Two for striping and two for mirroring.
A network cable (also called internet cable) is a cable used to connect computers, printers, network switches, broadband modems and other devices to each other in a computer network.
The data that is sent from or sent to the server.
How fast the server can send and receive files.
A control panel for Linux that is especially suited for the hosting of websites.