System information

421
Glossary
1U
One rack unit (also referred to as 1RU). A standard measurement equal to
1.75” (4.45 cm) of vertical space on a rack or cabinet that is used for mounting
computer equipment.
3DES
Triple Data Encryption Standard, an encrypting algorithm (cipher) that
encrypts data three times, using a unique key each time, to prevent
unauthorized viewers from viewing or changing the data. 3DES encryption is
one of the security features provided by Cyclades products to enable
customers to enforce their
data center security policies. See also
authentication, authorization, and encryption.
ActiveX
A set of technologies developed by Microsoft from its previous OLE (object
linking and embedding) and COM (component object model) technologies.
Browsers used for accessing KVM output from devices connected to
Cyclades AlterPath KVM products must have ActiveX enabled.
advanced lights out manager (See ALOM)
AH (authentication header)
One of the two main protocols used by IPSec. (ESP is the other). AH
authenticates data flowing over the connection. AH is not compatible with
NAT, so it must be employed only when the source and destination networks
can be reached without NAT. Does not define the authentication method that
must be used.