[34] in Zephyr_Comments
Re: login instances
daemon@ATHENA.MIT.EDU (John T Kohl)
Wed May 25 09:43:09 1988
Date: Wed, 25 May 88 09:42:49 EDT
From: John T Kohl <jtkohl@ATHENA.MIT.EDU>
To: John D Kubiatowicz <kubitron@ATHENA.MIT.EDU>
Cc: zephyr-comments@ATHENA.MIT.EDU
In-Reply-To: Your message of 25 May 1988 Zephyr_Comments:[0033]
What if login instances were to expire on a regular basis and zwgc were
to keep sending login messages at regular intervals? The zephyr server
could recognize that a login notice duplicated a previous message a
refrain from sending duplicate login notices to users.
If, as you suggest, each zwgc sends a packet every 10 minutes, for 1000
workstations that is 100 per minute. Unfortunately, the zephyr server
is going to have a hard time dealing with this, since each login notice
is authenticated with a crypto checksum, which takes time to compute.
The packet load would simply be too high.
And if the interval is changed, just change the number of workstations
to get the same effect.
Thanks for your ideas, but in this case I don't think this is quite the
right approach.
John
