G
LOSSARY
343
fresh
Content stored in the cache can either be
fresh
(also known as
current
)
or
stale
(also known as
expired
). If it is fresh, the content is up to date
and the Webcache serves it to the client machine as a cache hit.
See also
current
.
FTP
File Transfer Protocol. A protocol based on TCP/IP for reliable file
transfer.
full duplex
A system that allows packets to be transmitted and received at the
same time and, in effect, doubles the potential throughput of a link.
gateway
See
router
.
half duplex
A system that allows packets to transmitted and received, but not at
the same time. Contrast with
full duplex
.
HTTP
Hypertext Transfer Protocol. This is a set of rules for exchanging files
(text, graphic images, sound, video, and other multimedia files) on the
World Wide Web.
ICMP
Internet Control Message Protocol. A message control and
error-reporting protocol between a host server and a gateway to the
Internet.
IETF
Internet Engineering Task Force. An organization responsible for
providing engineering solutions for TCP/IP networks. In the network
management area, this group is responsible for the development of the
SNMP protocol.
inline cache
The Webcache is directly connected to a switch in your LAN via the
LAN port and a WAN gateway or firewall via the WAN port. All
network traffic passes through the Webcache, regardless of whether it
is Web or non-Web traffic.
Intranet
An Intranet is an organization wide network using Internet protocols
such as web services, TCP/IP, HTTP and HTML. An Intranet is normally
used for internal communication and information, and is not accessible
to computers on the wider Internet.
IP
Internet Protocol. IP is a layer 3 network protocol that is the standard
for sending data through a network. IP is part of the TCP/IP set of
protocols that describe the routing of packets to addressed devices.
dua1611-5aaa04.book Page 343 Friday, November 29, 2002 8:56 PM
Содержание SUPERSTACK 3 WEBCACHE 3000
Страница 16: ...dua1611 5aaa04 book Page 16 Friday November 29 2002 8 56 PM...
Страница 22: ...22 dua1611 5aaa04 book Page 22 Friday November 29 2002 8 56 PM...
Страница 58: ...58 CHAPTER 1 WEB CACHING CONCEPTS AND DEPLOYMENT dua1611 5aaa04 book Page 58 Friday November 29 2002 8 56 PM...
Страница 78: ...78 CHAPTER 2 INSTALLING THE WEBCACHE dua1611 5aaa04 book Page 78 Friday November 29 2002 8 56 PM...
Страница 80: ...80 dua1611 5aaa04 book Page 80 Friday November 29 2002 8 56 PM...
Страница 102: ...102 CHAPTER 4 USING THE WEB INTERFACE dua1611 5aaa04 book Page 102 Friday November 29 2002 8 56 PM...
Страница 110: ...110 dua1611 5aaa04 book Page 110 Friday November 29 2002 8 56 PM...
Страница 126: ...126 CHAPTER 6 CONFIGURING DEPLOYMENT MODES dua1611 5aaa04 book Page 126 Friday November 29 2002 8 56 PM...
Страница 136: ...136 CHAPTER 8 SYSTEM TIME dua1611 5aaa04 book Page 136 Friday November 29 2002 8 56 PM...
Страница 138: ...138 dua1611 5aaa04 book Page 138 Friday November 29 2002 8 56 PM...
Страница 144: ...144 CHAPTER 9 MONITORING WEB ACCESS dua1611 5aaa04 book Page 144 Friday November 29 2002 8 56 PM...
Страница 178: ...178 CHAPTER 10 USING CONTENT FILTERING dua1611 5aaa04 book Page 178 Friday November 29 2002 8 56 PM...
Страница 180: ...180 dua1611 5aaa04 book Page 180 Friday November 29 2002 8 56 PM...
Страница 192: ...192 CHAPTER 11 CONTROLLING HOW WEB SITES ARE CACHED dua1611 5aaa04 book Page 192 Friday November 29 2002 8 56 PM...
Страница 204: ...204 CHAPTER 12 PRELOADING CONTENT dua1611 5aaa04 book Page 204 Friday November 29 2002 8 56 PM...
Страница 206: ...206 dua1611 5aaa04 book Page 206 Friday November 29 2002 8 56 PM...
Страница 218: ...218 CHAPTER 13 MONITORING SYSTEM EVENTS dua1611 5aaa04 book Page 218 Friday November 29 2002 8 56 PM...
Страница 234: ...234 dua1611 5aaa04 book Page 234 Friday November 29 2002 8 56 PM...
Страница 248: ...248 CHAPTER 17 SOFTWARE UPGRADES dua1611 5aaa04 book Page 248 Friday November 29 2002 8 56 PM...
Страница 250: ...250 dua1611 5aaa04 book Page 250 Friday November 29 2002 8 56 PM...
Страница 272: ...272 CHAPTER 18 COMMAND LINE INTERFACE dua1611 5aaa04 book Page 272 Friday November 29 2002 8 56 PM...
Страница 273: ...IX PROBLEM SOLVING Chapter 19 Problem Solving dua1611 5aaa04 book Page 273 Friday November 29 2002 8 56 PM...
Страница 274: ...274 dua1611 5aaa04 book Page 274 Friday November 29 2002 8 56 PM...
Страница 286: ...286 dua1611 5aaa04 book Page 286 Friday November 29 2002 8 56 PM...
Страница 294: ...294 APPENDIX A SAFETY INFORMATION dua1611 5aaa04 book Page 294 Friday November 29 2002 8 56 PM...
Страница 298: ...298 APPENDIX B CABLE SPECIFICATIONS AND PIN OUTS dua1611 5aaa04 book Page 298 Friday November 29 2002 8 56 PM...
Страница 312: ...312 APPENDIX E DEFAULT SETTINGS FOR THE WEBCACHE dua1611 5aaa04 book Page 312 Friday November 29 2002 8 56 PM...
Страница 334: ...334 APPENDIX I TRACE ROUTE SYMBOLS dua1611 5aaa04 book Page 334 Friday November 29 2002 8 56 PM...
Страница 348: ...348 GLOSSARY dua1611 5aaa04 book Page 348 Friday November 29 2002 8 56 PM...