You can set the value in  /etc/sysctl.conf as
fs.file-max = 20000 

"frank nerkt" <[EMAIL PROTECTED]> wrote:

>hi everybody,
>
>i run redhat 7.2 and want to increase to maximum file descriptors but got
>two problems:
>
>1st:
>when i log in with root and changed with ulimit -Hn 20000 and ulimit -n 2000
>everything is ok. ulimit -a shows correct 20000. but when i log out and in
>again there were again only 1024 file descriptors. how can is set this
>permanent?
>
>2nd:
>how can is set the limit for the users on this machine. when a users tries
>to do ulimit -Hn 20000 he gets permission denies even when he is in the root
>group.
>
>i hope you can help me.
>
>thx
>frank
>
>
>
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