06-05-2002
How about cheap X-clients?
I see X Terminals on eBay all the time for cheap that support VGA. You might be able to find what you need that works with a decent VGA monitor.
I would look at the X Terminal solution. The only problem with buying off eBay is that you have to make sure that you buy X Terminals that are still supported by the manufacture.
You could also go with cheap PC's running either Unix or Windows with X Client software or VNC.
There are several solutions available, it just depends on how much they want to spend.
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LEARN ABOUT CENTOS
sd_id128_get_boot
SD_ID128_GET_MACHINE(3) sd_id128_get_machine SD_ID128_GET_MACHINE(3)
NAME
sd_id128_get_machine, sd_id128_get_boot - Retrieve 128-bit IDs
SYNOPSIS
#include <systemd/sd-id128.h>
int sd_id128_get_machine(sd_id128_t* ret);
int sd_id128_get_boot(sd_id128_t* ret);
DESCRIPTION
sd_id128_get_machine() returns the machine ID of the executing host. This reads and parses the machine-id(5) file. This function caches the
machine ID internally to make retrieving the machine ID a cheap operation.
sd_id128_get_boot() returns the boot ID of the executing kernel. This reads and parses the /proc/sys/kernel/random/boot_id file exposed by
the kernel. It is randomly generated early at boot and is unique for every running kernel instance. See random(4) for more information.
This function also internally caches the returned ID to make this call a cheap operation.
Note that sd_id128_get_boot() always returns a UUID v4 compatible ID. sd_id128_get_machine() will also return a UUID v4-compatible ID on
new installations but might not on older. It is possible to convert the machine ID into a UUID v4-compatible one. For more information, see
machine-id(5).
For more information about the "sd_id128_t" type see sd-id128(3).
RETURN VALUE
The two calls return 0 on success (in which case ret is filled in), or a negative errno-style error code.
NOTES
The sd_id128_get_machine() and sd_id128_get_boot() interfaces are available as a shared library, which can be compiled and linked to with
the "libsystemd-id128" pkg-config(1) file.
SEE ALSO
systemd(1), sd-id128(3), machine-id(5), random(4), sd_id128_randomize(3)
systemd 208 SD_ID128_GET_MACHINE(3)