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root@hardy:~# cd /bin
root@hardy:/bin# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 2008-04-28 19:59 /bin/sh -> dash
root@hardy:/bin# ln -sf bash /bin/sh
root@hardy:/bin# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 2008-05-01 22:51 /bin/sh -> bash
# echo "Red Hat Linux release 4" > /etc/redhat-release
root@hardy:/bin# cd
root@hardy:~# pwd
   /root
root@hardy:~# addgroup oinstall
   Adding group `oinstall' (GID 1001) ...
   Done.
root@hardy:~# addgroup dba
   Adding group `dba' (GID 1002) ...
   Done.
root@hardy:~# addgroup nobody
   Adding group `nobody' (GID 1003) ...
   Done.
root@hardy:~# usermod -g nobody nobody
root@hardy:~# useradd -g oinstall -G dba -p password -d /home/oracle -s /bin/bash oracle
root@hardy:~# passwd -l oracle
   Password changed.
root@hardy:~# mkdir /home/oracle
root@hardy:~# chown -R oracle:dba /home/oracle
root@hardy:~# ln -s /usr/bin/awk /bin/awk
root@hardy:~# ln -s /usr/bin/rpm /bin/rpm
root@hardy:~# ln -s /usr/bin/basename /bin/basename
root@hardy:~# mkdir /etc/rc.d
root@hardy:~# for i in 0 1 2 3 4 5 6 S ; do ln -s /etc/rc$i.d /etc/rc.d/rc$i.d ; done
root@hardy:~# mkdir -p /u01/app/oracle
root@hardy:~# chown -R oracle:dba /u01
root@hardy:~#
ÐÞ¸Äetc/sysctl.confÎļþ,ÔÚĩβÔö¼Ó£º
fs.file-max = 65535
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 1024 65535
net.core.rmem_default = 1048576
net.core.rmem_max = 1048576
net.core.wmem_default = 262144
net.core.wmem_max = 262144
ÐÞ¸Ä/etc/security/limits.confÎļþ,ÔÚĩβÔö¼Ó£º
oracle soft nproc 2047
oracle hard nproc 16383
oracle soft nofile 1023
oracle hard nofile 65535
ΪÁËÇ¿ÖÆÊ¹ÓøղÅÎÒÃÇÔö¼ÓµÄ¶«Î÷£¬ÐÞ¸Ä/etc/pam.d/loginÎļþĩβ£º
session required /lib/security/pam_limits.so
session required pam_limits.so
# sysctl -p
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