> I am just wondering how many redirector children I should specify for a > system that is potentially supporting 5,000+ users.
It will depend on the particular redirector program and other factors. Just pick a number that you think is more than large enough (say 30) and then watch Squid for a while. Use the cache manager "redirector" page. If you see that the higher-numbered redirectors never get any requests then you can reduce the number. Duane W.
