On Dec 11, 2006, at 3:39 PM, Jeff Schroeder wrote:
Nicholas asked:
Is there some way to lock a root shell such that it is always
responsive so that we could at least kill the webserver and have a
chance of the log files being fully written to find the problem?
I don't know for sure, but perhaps you could "nice" the process
running
the shell?
# nice -n -20 bash
A nice-value of -20 is the absolute highest priority (+19 is
lowest). I
have no idea if this will cause problems with other things on the
system; perhaps a value of -10 or something would be more appropriate.
By default, processes are launched with a nice-value of zero.
For good measure you may also want to "nice" your individual SSH
process, and the root SSH process. That should make sure that your
shell and it's network traffic has highest priority in any situation
short of a DOS attack.
Grant
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