Yes, ulimit only lets you set a number up to the hard limit that is set for your shell. Both hard and soft limits are set to 1024 by default unless the limits.conf file has been configured _before_ the shell is started. I know this works with numbers, since I set hard and soft limits to 10240 for select users. Try using a number less than the total for the system instead of unlimited. c Rahul Nabar wrote: > I tried changing the max limit on the number of open files but get an > error: > > ssh root@eu033 > [root@eu033 ~]# ulimit -n unlimited > -bash: ulimit: open files: cannot modify limit: Operation not permitted > > I verified that /etc/security/limits.conf has these two lines: > * hard nofile unlimited > * soft nofile unlimited > > The default kernel limits seem high enough: > [root@eu033 ~]# cat /proc/sys/fs/file-max > 1585781 > > [root@eu033 ~]# sysctl -a|grep fs.file-max > fs.file-max = 1585781 > > So why is my change via ulimit being rejected? What else could be > setting the limit at 1024. Any ideas how else I can get the file-limit > to be set to unlimited? > > Actually, I am not even sure limits.conf is being used since I have > the following lines in the file /etc/ssh/sshd_config > > UsePAM no > UsePrivilegeSeparation no > > -- > Rahul > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list