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Quota
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The "Quota" is the
amount of hard drive space (web space) on
the server reserved for each user, you can
check how much of your quota is used with the
UNIX
command "quota",
when you have used more than your assigned space,
the system lets you know and gives you a grace
period to make some changes to bring the used space
within the authorized amount.
See Also:
UNIX,
Web
Space,
Server
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RFC
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Request For Comments -- The
name of the result and the process for creating a
standard on the Internet. New standards are
proposed and published on line, as a Request For
Comments. The Internet Engineering Task
Force is a consensus-building body that facilitates
discussion, and eventually a new standard is
established, but the reference number/name for the
standard retains the acronym RFC, e.g. the official
standard for e-mail is RFC 822.
See Also:
Internet,
E-mail
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Router
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A special-purpose computer
(or software package) that handles the connection
between 2 or more networks. Routers spend
all their time looking at the destination addresses
of the packets passing through them and
deciding which route to send them on.
See Also:
Network,
Packet
Switching
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Script
(CGI script, shell
script)
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A piece of programming added
to an other to expand the capabilities of a web
server, or any other CGI capable
program.
See Also:
CGI,
Web,
Server
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Search Engine
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Also sometimes called
Index, a Search Engine is a database
which contains links and informations on those
links, to allow users to search resources on the
Internet, using keywords or other methods of
indexing.
See Also:
Index,
Internet
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Security
Certificate
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A chunk of information (often
stored as a text file) that is used by the
SSL protocol to establish a secure
connection.
Security Certificates contain
information about who it belongs to, who it was
issued by, a unique serial number or other unique
identification, valid dates, and an encrypted
“fingerprint” that can be used to verify
the contents of the certificate.
In order for an SSL
connection to be created, both sides must have a
valid Security Certificate.
See Also:
Certificate
Authority,
SSL
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Server
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A computer, or a software
package, that provides a specific kind of service
to client software running on other
computers. The term can refer to a particular piece
of software, such as a WWW server (or
Web Server), or to the machine on which the
software is running, e.g.Our mail server is
down today, that’s why e-mail
isn’t getting out. A single server
machine could have several different server
software packages running on it, thus providing
many different servers to clients on
the network.
See Also:
Client,
Network,
E-mail,
WWW
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Shareware
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Software that is not free but
freely distributed to allow trying before buying.
Users keeping the software (shareware) for use
beyond a reasonable trial period are expected to
pay the registration fee (buying) or stop using
it.
See Also:
Freeware
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Shell Access Via
Telnet
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The shell access feature
allows you to log into your account on the
server directly via Telnet, all you
need is a Telnet client and access to
the Net, from there you can move files
around, delete files, change access permissions of
certain files, view or even create text files and
so on, this is also where you can create
directories into your account or delete some old
ones to make room if they are no longer in use if
your site has been modified.
See Also:
Telnet,
Server,
Client
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SLIP
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Serial Line Internet Protocol
-- A standard for using a regular telephone line (a
serial line) and a modem to connect a
computer as a real Internet site. SLIP is
gradually being replaced by PPP.
See Also:
Internet,
PPP,
Modem
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SMDS
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Switched Multimegabit Data
Service -- A new standard for very high-speed data
transfer.
See Also:
T
3,
Megabyte,
Bit
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SMTP
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Simple Mail Transport
Protocol -- The main protocol used to send
electronic mail on the Internet.
SMTP consists of a set of
rules for how a program sending mail and a program
receiving mail should interact.
Almost all Internet
e-mail is sent and received by clients
and servers using SMTP, thus if one wanted
to set up an e-mail server on the
Internet one would look for e-mail
server software that supports SMTP.
See Also:
Client,
Server,
E-mail,
Internet
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SNMP
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Simple Network Management
Protocol -- A set of standards for communication
with devices connected to a TCP/IP network.
Examples of these devices include routers,
hubs, and switches.
A device is said to be
“SNMP compatible” if it can be monitored
and/or controlled using SNMP messages. SNMP
messages are known as “PDU’s” -
Protocol Data Units.
Devices that are SNMP
compatible contain SNMP “agent” software
to receive, send, and act upon SNMP
messages.
Software for managing devices
via SNMP are available for every kind of commonly
used computer and are often bundled along with the
device they are designed to manage. Some SNMP
software is designed to handle a wide variety of
devices.
See Also:
Network,
Router,
TCP/IP
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Spam (or
Spamming)
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An inappropriate attempt to
use a mailing list, or USENET or
other networked communications facility as if it
was a broadcast medium (which it is not) by sending
the same message to a large number of people who
didn’t ask for it. The term probably comes
from a famous Monty Python skit which featured the
word spam repeated over and over. The term may also
have come from someone’s low opinion of the
food product with the same name, which is generally
perceived as a generic content-free waste of
resources. (Spam is a registered trademark of
Hormel Corporation, for its processed meat
product.)
E.g. Mary spammed 50 USENET
groups by posting the same message to each.
See Also:
Maillist,
USENET
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SQL
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Structured Query Language --
A specialized programming language for sending
queries to databases. Most industrial-strength and
many smaller database applications can be addressed
using SQL. Each specific application will
have its own version of SQL implementing
features unique to that application, but all
SQL-capable databases support a common
subset of SQL.
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SSI
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Server Side Includes --
Allows embedding of system and other commands in
the HTML, these commands are then executed
on the server.
See Also:
HTML,
Server
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SSL
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Secure Sockets Layer -- A
protocol designed by Netscape Communications to
enable encrypted, authenticated communications
across the Internet.
SSL used mostly (but not
exclusively) in communications between web
browsers and web servers.
URL’s that begin with “https”
indicate that an SSL connection will be
used.
SSL provides 3 important
things: Privacy, Authentication, and Message
Integrity.
In an SSL connection each
side of the connection must have a Security
Certificate, which each side’s software
sends to the other. Each side then encrypts what it
sends using information from both its own and the
other side’s Certificate, ensuring that only
the intended recipient can de-crypt it, and that
the other side can be sure the data came from the
place it claims to have come from, and that the
message has not been tampered with.
See Also:
Browser,
Server,
Security
Certificate,
URL
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Sysop
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System Operator -- Anyone
responsible for the physical operations of a
computer system or network resource. A
System Administrator decides how often backups and
maintenance should be performed and the System
Operator performs those tasks.
Also pertains to the System
Operator of a BBS (Bulletin Board
System).
See Also:
BBS
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