User manual

Appendix F: Glossary
98 Cobalt CacheRaQ 4 User Manual
SMTP
see Simple Mail Transfer Protocol (SMTP).
SNMP
See Simple Network Management Protocol (SNMP).
SSL
See Secure Socket Layer (SSL).
Subnet mask
A number that, in conjunction with an IP address, defines the set of
IP addresses that are considered “local.” For example, if your IP address is
192.168.25.77 and your subnet mask is 255.255.255.0, then addresses
between 192.168.25.1 and 192.168.25.255 are considered local. Also known
as netmask.
Swap file
A space on a hard disk used as the virtual memory extension of a computer’s
random access memory (RAM). Having a swap file allows the computer’s
operating system to pretend that it has more RAM than it actually does. The
least-recently-used files in RAM are “swapped out” to your hard disk until
they are needed later; in their place, new program segments or data can be
“swapped in” to RAM.
Transmission Control Protocol (TCP)
A connection-oriented transport-layer protocol that provides reliable
full-duplex data transmission. TCP is part of the TCP/IP protocol stack.
Transmission Control Protocol/Internet Protocol (TCP/IP)
A common name for the suite of protocols developed in the 1970s to support
the construction of worldwide internetworks. TCP and IP are the two
best-known protocols in the suite. The TCP/IP protocols enable computers
and networks to connect to an intranet or Internet.