09-30-2009
Modifying limits.conf & pam.d
Hello all,
I'm running Oracle 10.2 on RHEL5. Current value of ulimit -n is set to a low value of 1024. I need to increase it to 65536 using the following procedure.
cat >> /etc/security/limits.conf <<EOF
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
EOF
cat >> /etc/pam.d/login <<EOF
session required /lib/security/pam_limits.so
EOF
Question: will the new values take effect as soon as I complete the above 2 steps or should I run something manually so that these new values take effect?
Thanks for your time.
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LEARN ABOUT FREEBSD
nologin
NOLOGIN(5) BSD File Formats Manual NOLOGIN(5)
NAME
nologin -- disallow logins
DESCRIPTION
Programs such as login(1) disallow logins if the nologin file exists. The programs display the contents of nologin to the user if possible
and interrupt the login sequence. This makes it simple to temporarily prevent incoming logins systemwide.
To disable logins on a per-account basis, investigate nologin(8).
SECURITY
The nologin file is ignored for user root by default.
IMPLEMENTATION NOTES
The nologin feature is implemented through login.conf(5), which allows to change the pathname of the file and to extend the list of users
exempt from temporary login restriction.
PAM-aware programs can be selectively configured to respect nologin using the pam_nologin(8) module via pam.conf(5).
The nologin file will be removed at system boot if it resides in /var/run and cleanvar_enable is set to ``YES'' in rc.conf(5), which is
default. Therefore system reboot can effectively re-enable logins.
FILES
/var/run/nologin default location of nologin
SEE ALSO
login(1), login.conf(5), pam.conf(5), rc.conf(5), nologin(8), pam_nologin(8), shutdown(8)
BSD
May 10, 2007 BSD