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Creating
a Serial Turnkey
When a Unix system is booted all the terminals
normally will get a Unix Login prompt where the users
can login as 'root' or as a Unix user. The
reason the terminals are getting a Unix login prompt
is because the /etc/inittab file in Unix has a line
entry defined to respawn a getty (Unix login) process
to the ttys.
A Pick Turnkey changes this /etc/inittab line to
respawn a Pick process to the tty instead of the getty
process. This causes a Pick Logon prompt to appear on
the terminal instead of the Unix Login prompt.
The benefits to having the system configured as a
Turnkey system is that the Pick users will not have to
login to Unix before logging into Pick. This solves
the security issue of users getting into Unix and
possibly getting themselves into trouble with Unix.
Creating a Pick Turkey system the users will never see
Unix unless given permissions.
It is a good idea to have tty0 on S1 setup as an
AIX terminal and tty1 on S2 the Pick port 0.
Note:
AIX /
PICK Boot File: /etc/inittab
Use the AIX command mkitab to make an entry to the
/etc/inittab file.
Use the
AIX command chitab to change an entry to the
/etc/inittab file.
Use the
AIX command rmitab to remove an entry to the
/etc/inittab file.
EXAMPLE:
To make a new entry to the inittab file that would
respawn tty2 to PICK port 2
Don't forget the double quotes
mkitab "pick02:2:respawn:ap -n pick0 2 -t
/dev/tty2" {pick02 is the label and should
be meaningful.}
chitab "pick02:2:respawn:/etc/getty
/dev/tty2" {Uses the label pick02 to
identify which line to change}
rmitab pick02 {double quotes are not needed}
The most important pitfall to
watch for is to make sure that a getty process and a
Pick Turnkey process is not configured to respawn to
the same tty. If this happens it will prevent the tty
from getting any login prompt and the tty will appear
to be a dead.
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Creating
a Telnet Turkey
Turnkey Telnet Ports are configured in the
/etc/inittab much the same way as serial
turnkey ports.
Turnkey Telnet make use of the tcp sockets in unix.
Note:
AIX /
PICK Boot File: /etc/inittab
Use the AIX command mkitab to make an entry to the
/etc/inittab file.
Use the
AIX command chitab to change an entry to the
/etc/inittab file.
Use the
AIX command rmitab to remove an entry to the
/etc/inittab file.
Here is
an example how to make a new entry to the inittab file
that would respawn a listener process on tcp socket
3002. When the user types in 'telnet hostname 3002'
they will get a Pick logon prompt on Pick port 2.
Example entry to the /etc/inittab file:
pick02:2:respawn:ap -n pick0 2 -u /t3002,s
Any tcp socket number can be used providing it is
above 3000 and does not exist in the /etc/services
file.
Make sure that the TCP port number is different for
each turnkey port.
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Contact the
hotline if you need help setting up a Turnkey System
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