Setting max limits in /etc/security/limits.conf

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What we would like to do on a server running CENTOS 4.6 is to restrict max cpu time for most interactive users but ensure that processes for system users such as root & special userids that provide services are kept as unlimited.

The documentation for limits.conf is not very extensive but I think I am correct in assuming that resource limits specified in limits.conf only apply to processes that *login* to a system, rather than those kicked off at boot time as daemons?

There does not seem to be any obvious way of specifying an unlimited value for a resource unlike the ulimit command ? Does anyone know a way of specifying unlimited in limits.conf ?

Any suggestions

begin:vcard
fn:Dr Les Oswald
n:Oswald;Les
org:Cranfield University;IT Department
adr:Central Avenue;;Building 63;CRANFIELD CAMPUS;Beds.;MK43 0AL;UK
email;internet:L.Oswald@xxxxxxxxxxxxxxx
title:HPC Specialist
tel;work:01234-752924 (DDL)
tel;fax:01234-751814
tel;cell:07765-915549
x-mozilla-html:TRUE
url:http://www.cranfield.ac.uk/ccc
version:2.1
end:vcard

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