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.cshrc
file
C
Shell Run Control file. User-specific initialization file stored in the
home directory which typically contains aliases, turns on shell features
and sets the custom prompt. Read for C shell users.
.dtprofile
Desktop
Profile file. User-specific initialization file which resides in the
user's home directory and determines settings for the CDE. This file is
standard system wide and is created in a user's home directory the first
time the user logs in to the CDE.
.kshrc
file
Korn
Shell Run Control file. User-specific initialization file stored in the
home directory which typically contains aliases, turns on shell features
and sets the custom prompt. Read for Korn shell users.
.login
User-specific
initialization file stored in the home directory which contains
one-time-only commands and variable definitions. Read for C shell users.
.logout
file
The
.logout file is available for C shell users that allows for
customization after the user logs out. Clear the screen and print
"Bye", for instance. Read for C shell users.
.profile
file
User-specific
initialization file stored in the home directory which contains
one-time-only commands and variable definitions. Read for both Bourne
and Korn shell users.
/etc/hosts
file
With
/etc/hosts name resolution each machine requires that a static
/etc/hosts file be created in order to translate host names to IP
addresses.
/etc/passwd
file
The
/etc/passwd file contains the master list of user information and is
consulted each time someone attempts to access the system.
/etc/profile
file
The
primary system-wide initialization file located in the /etc directory.
The profile file is created by default when the operating system is
installed and can be edited and customized by a system administrator.
When a Bourne, Korn or C shell user logs in, the system reads the
/etc/profile file first.
1000Base-T
1000BASE-T is Gigabit Ethernet (1 gigabit is 1000 megabits per second) on copper cables, using four pairs of Category 5 Unshielded Twisted Pair to achieve the gigabit data rate. 1000BASE-T can be used in data centers for server switching, for uplinks from desktop computer switches, or directly to the desktop for broadband applications. A big advantage of 1000BASE-T is that existing copper cabling can be used instead of having to rewire with optical fiber.
100Base-FX
100-Mbps
baseband Fast Ethernet specification using fiber optic cable.
100BASE-FX, which is part of the IEEE 802.3u specification, has a
distance limit of from 400 to 2,000 meters per segment depending on
whether it is shared or switched and the type of fiber used. Commonly
used for LAN backbones.
100Base-TX
100-Mbps
baseband Fast Ethernet specification using twisted pair (copper) cable.
100BASE-TX, which is part of the IEEE 802.3u specification, has a
distance limit of from 100 meters per segment. Commonly used for
workstation and server connections.
10BASE-2

10-Mbps
baseband Ethernet specification using 50-ohm thin coaxial cable.
10BASE2, which is part of the IEEE 802.3 specification, has a distance
limit of 185 meters per segment. 


10BASE-5
10-Mbps
baseband Ethernet specification using standard (thick) 50-ohm baseband
coaxial cable. 10BASE5, which is part of the IEEE 802.3baseband physical
layer specification, has a distance limit of 500 meters per segment. 
10BASE-F
10-Mbps
baseband Ethernet specification that refers to the 10BASE-FB, 10BASE-FL,
and 10BASE-FP standards for Ethernet over fiber-optic cabling.
10BASE-T



10-Mbps
baseband Ethernet specification using two pairs of twisted-pair cabling
(Category 3, 4, or 5), one pair for transmitting data and the other for
receiving data. 10BASE-T, which is part of the IEEE 802.3 specification,
has a distance limit of approximately 100 meters per segment.