01-24-2017
Quote:
Originally Posted by
rbatte1
Maybe I'm too old and fondly remember IBM mainframe 3270 displays ......
Robin
If you mean the green display, I didn't have an IBM 3270 but I do fondly remember an IBM PC with hercules card, that super-luminous green may be out-of-gamut on modern displays, I could never quite duplicate it.
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LEARN ABOUT REDHAT
ibm_hosts
IBM_HOSTS(5) File Formats Manual IBM_HOSTS(5)
NAME
ibm_hosts - host database for x3270 and c3270
SYNOPSIS
/usr/lib/X11/x3270/ibm_hosts
DESCRIPTION
The ibm_hosts file contains information regarding IBM hosts on the network. An IBM host is a host which can communicate with a 3270 termi-
nal emulator such as x3270 or c3270. Each line defines a name in the following format (optional fields are shown in brackets):
name type [opt:]...[luname@]hostname[:port] [actions]
Items are separated by any number of blanks and/or TAB characters. A line beginning with # is taken as a comment (note that # anywhere
else on a line does not indicate a comment).
The name field is a mnemonic used to identify the host.
The type field is a keyword that indicates the type of entry. The value primary means that the name will be included in host-selection
menus that may be displayed by a 3270 emulator. The value alias means that the name will not be included in menus, but will still be
accepted as valid input when a host name is required.
The hostname field is the Internet hostname or dot-notation Internet address of the host.
The hostname can include `s:' or `p:' prefixes, e.g., s:finicky (see the x3270(1) or c3270(1) man page sfor details). It can also an LU
name, separated by an `@' character, e.g., oddlu@bluehost. Finally, it can a non-default port number, appended to the hostname with a
colon `:' character, e.g., bluehost:97. (For compatability with earlier versions of x3270, the port can also be separated by a slash `/'
character.)
The optional actions field specifies actions to be taken once the connection is made and a data-entry field is defined. If the text looks
like an action, e.g., PF(1), it is unmodified; otherwise it is taken as the parameter to the String() action. The actions are not intended
for entering usernames and passwords; rather they provide an automated way of specifying a front-end menu option.
EXAMPLE
Given the following ibm_hosts file:
mvs primary mvs-host
tso alias mvs-host
mvs2 primary mvs-host:4012
vm primary vtam Tab() String(3) Enter()
A 3270 emulator will display four names (mvs, mvs2, afhost and vm) on its hosts menu. The names mvs and tso will cause connections to the
host mvs-host. The name mvs2 will also cause a connection to mvs-host, but to port 4012 rather than the emulator's default port (usually
23). The name vm will cause the 3270 emulator to connect to the host vtam (presumably some sort of host-selection front-end), enter the
string `3' on the second data-entry field on the screen, and send the Enter AID sequence.
FILES
/usr/lib/X11/x3270/ibm_hosts
SEE ALSO
x3270(1), c3270(1)
01 May 2002 IBM_HOSTS(5)