ADDITIONAL NOTES

* For customers using asynch_io , apply bug: 3208258 (Fixed In Ver: 9.2.0.4 or 9.2.0.5)
* For additional info, please also refer to the document on otn

http://otn.oracle.com/tech/linux/index.html ,

"Installing Oracle9i Release 2 on RedHat Enterprise Linux 3.0"

* Modify your kernel settings in /etc/sysctl.conf (RedHat) as follows:

# Disables packet forwarding
net.ipv4.ip_forward = 0

# Enables source route verification
net.ipv4.conf.default.rp_filter = 1

# Enables the magic-sysrq key
kernel.sysrq = 1

kernel.hostname = yourhost.yourdomain.com #<--- full qualified hostname !!
kernel.domainname = yourdomain #<--- correct domain name !!

kernel.sem = 250 32000 100 150
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.shmseg = 4096
kernel.shmall = 3279547
fs.file-max = 327679
kernel.msgmni = 2878
kernel.msgmnb = 360000
net.ipv4.ip_local_port_range = 1024 65536

REBOOT the box after saving /etc/sysctl.conf changes.