OCM_Session7_5_修改/etc/security/limits.conf和 /etc/pam.d/login和/etc/profile

五、修改/etc/security/limits.conf和 /etc/pam.d/login和/etc/profile

 

这个在OCM环境已经配置好。

参考官方文档：http://docs.oracle.com/cd/B19306_01/install.102/b14203/prelinux.htm

To increase the shell limits:

1. Add the following lines to the /etc/security/limits.conf file:

   oracle              soft    nproc   2047 

   oracle               hard    nproc   16384 

   oracle               soft    nofile  1024 

   oracle               hard    nofile  65536

2. Add or edit the following line in the /etc/pam.d/login file, if it does not already exist:

   session    required     /lib/security/pam_limits.so

3. Depending on the oracle user's default shell, make the following changes to the default shell startup file:

   • For the Bourne, Bash, or Korn shell, add the following lines to the /etc/profile file (or the file on SUSE systems)/etc/profile.local:

     if [ $USER = "oracle" ]; then 

             if [ $SHELL = "/bin/ksh" ]; then 

                   ulimit -p 16384 

                   ulimit -n 65536 

             else 

                   ulimit -u 16384 -n 65536 

             fi 

     fi

   • For the C shell (csh or tcsh), add the following lines to the /etc/csh.login file (or the file on SUSE systems)/etc/csh.login.local:

     if ( $USER == "oracle" ) then

      

             limit maxproc 16384

      

             limit descriptors 65536

      

     endif

4. Repeat this procedure on all other nodes in the cluster.

   
   

   
   

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我的修改如下：

rac1节点

[root@rac1 ~]# cp  /etc/security/limits.conf  /etc/security/limits.conf.bak

[root@rac1 ~]# vi  /etc/security/limits.conf

# /etc/security/limits.conf

#

#Each line describes a limit for a user in the form:

#

#<domain>        <type>  <item>  <value>

#

#Where:

#<domain> can be:

#        - an user name

#        - a group name, with @group syntax

#        - the wildcard *, for default entry

#        - the wildcard %, can be also used with %group syntax,

#                 for maxlogin limit

#

#<type> can have the two values:

#        - "soft" for enforcing the soft limits

#        - "hard" for enforcing hard limits

#

#<item> can be one of the following:

#        - core - limits the core file size (KB)

#        - data - max data size (KB)

#        - fsize - maximum filesize (KB)

#        - memlock - max locked-in-memory address space (KB)

#        - nofile - max number of open files

#        - rss - max resident set size (KB)

#        - stack - max stack size (KB)

#        - cpu - max CPU time (MIN)

#        - nproc - max number of processes

#        - as - address space limit

#        - maxlogins - max number of logins for this user

#        - maxsyslogins - max number of logins on the system

#        - priority - the priority to run user process with

#        - locks - max number of file locks the user can hold

#        - sigpending - max number of pending signals

#        - msgqueue - max memory used by POSIX message queues (bytes)

#        - nice - max nice priority allowed to raise to

#        - rtprio - max realtime priority

#

#<domain>      <type>  <item>         <value>

#

#*               soft    core            0

#*               hard    rss             10000

#@student        hard    nproc           20

#@faculty        soft    nproc           20

#@faculty        hard    nproc           50

#ftp             hard    nproc           0

#@student        -       maxlogins       4

oracle              soft    nproc   2047

oracle               hard    nproc   16384

oracle               soft    nofile  1024

oracle               hard    nofile  65536

"/etc/security/limits.conf" 58L, 1975C written

[root@rac1 ~]#  cp /etc/pam.d/login /etc/pam.d/login.bak

[root@rac1 ~]# vi /etc/pam.d/login

#%PAM-1.0

auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so

auth       include      system-auth

account    required     pam_nologin.so

account    include      system-auth

password   include      system-auth

# pam_selinux.so close should be the first session rule

session    required     pam_selinux.so close

session    optional     pam_keyinit.so force revoke

session    required     pam_loginuid.so

session    include      system-auth

session    optional     pam_console.so

# pam_selinux.so open should only be followed by sessions to be executed in the user context

session    required     pam_selinux.so open

session    required     /lib/security/pam_limits.so

~

~

~

~

~

~

~

"/etc/pam.d/login" 15L, 695C written

[root@rac1 ~]# 

[root@rac1 ~]#  cp /etc/profile /etc/profile.bak

[root@rac1 ~]# vi /etc/profile

# /etc/profile

# System wide environment and startup programs, for login setup

# Functions and aliases go in /etc/bashrc

pathmunge () {

        if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then

           if [ "$2" = "after" ] ; then

              PATH=$PATH:$1

           else

              PATH=$1:$PATH

           fi

        fi

}

# ksh workaround

if [ -z "$EUID" -a -x /usr/bin/id ]; then

        EUID=`id -u`

        UID=`id -ru`

fi

# Path manipulation

if [ "$EUID" = "0" ]; then

        pathmunge /sbin

        pathmunge /usr/sbin

        pathmunge /usr/local/sbin

fi

# No core files by default

ulimit -S -c 0 > /dev/null 2>&1

if [ -x /usr/bin/id ]; then

        USER="`id -un`"

        LOGNAME=$USER

        MAIL="/var/spool/mail/$USER"

fi

HOSTNAME=`/bin/hostname`

HISTSIZE=1000

if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then

    INPUTRC=/etc/inputrc

fi

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC

for i in /etc/profile.d/*.sh ; do

    if [ -r "$i" ]; then

        if [ "$PS1" ]; then

            . $i

        else

            . $i >/dev/null 2>&1

        fi

    fi

done

unset i

unset pathmunge

if [ $USER = "oracle" ]; then

        if [ $SHELL = "/bin/ksh" ]; then

              ulimit -p 16384

              ulimit -n 65536

        else

              ulimit -u 16384 -n 65536

        fi

fi

"/etc/profile" 74L, 1234C written

[root@rac1 ~]

---------------------------------------------------------------------------------------------------------------------

rac2节点：

[root@rac2 ~]# cp  /etc/security/limits.conf  /etc/security/limits.conf.bak

[root@rac2 ~]#  vi  /etc/security/limits.conf 

# /etc/security/limits.conf

#

#Each line describes a limit for a user in the form:

#

#<domain>        <type>  <item>  <value>

#

#Where:

#<domain> can be:

#        - an user name

#        - a group name, with @group syntax

#        - the wildcard *, for default entry

#        - the wildcard %, can be also used with %group syntax,

#                 for maxlogin limit

#

#<type> can have the two values:

#        - "soft" for enforcing the soft limits

#        - "hard" for enforcing hard limits

#

#<item> can be one of the following:

#        - core - limits the core file size (KB)

#        - data - max data size (KB)

#        - fsize - maximum filesize (KB)

#        - memlock - max locked-in-memory address space (KB)

#        - nofile - max number of open files

#        - rss - max resident set size (KB)

#        - stack - max stack size (KB)

#        - cpu - max CPU time (MIN)

#        - nproc - max number of processes

#        - as - address space limit

#        - maxlogins - max number of logins for this user

#        - maxsyslogins - max number of logins on the system

#        - priority - the priority to run user process with

#        - locks - max number of file locks the user can hold

#        - sigpending - max number of pending signals

#        - msgqueue - max memory used by POSIX message queues (bytes)

#        - nice - max nice priority allowed to raise to

#        - rtprio - max realtime priority

#

#<domain>      <type>  <item>         <value>

#

#*               soft    core            0

#*               hard    rss             10000

#@student        hard    nproc           20

#@faculty        soft    nproc           20

#@faculty        hard    nproc           50

#ftp             hard    nproc           0

#@student        -       maxlogins       4

oracle              soft    nproc   2047

oracle               hard    nproc   16384

oracle               soft    nofile  1024

oracle               hard    nofile  65536

"/etc/security/limits.conf" 58L, 1975C written

[root@rac2 ~]#  cp /etc/pam.d/login /etc/pam.d/login.bak

[root@rac2 ~]# vi /etc/pam.d/login

#%PAM-1.0

auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so

auth       include      system-auth

account    required     pam_nologin.so

account    include      system-auth

password   include      system-auth

# pam_selinux.so close should be the first session rule

session    required     pam_selinux.so close

session    optional     pam_keyinit.so force revoke

session    required     pam_loginuid.so

session    include      system-auth

session    optional     pam_console.so

# pam_selinux.so open should only be followed by sessions to be executed in the user context

session    required     pam_selinux.so open

session    required     /lib/security/pam_limits.so

~

~

~

~

~

~

~

"/etc/pam.d/login" 15L, 695C written

[root@rac2 ~]#

[root@rac2 ~]# cp /etc/profile /etc/profile.bak

[root@rac2 ~]# vi /etc/profile

# /etc/profile

# System wide environment and startup programs, for login setup

# Functions and aliases go in /etc/bashrc

pathmunge () {

        if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then

           if [ "$2" = "after" ] ; then

              PATH=$PATH:$1

           else

              PATH=$1:$PATH

           fi

        fi

}

# ksh workaround

if [ -z "$EUID" -a -x /usr/bin/id ]; then

        EUID=`id -u`

        UID=`id -ru`

fi

# Path manipulation

if [ "$EUID" = "0" ]; then

        pathmunge /sbin

        pathmunge /usr/sbin

        pathmunge /usr/local/sbin

fi

# No core files by default

ulimit -S -c 0 > /dev/null 2>&1

if [ -x /usr/bin/id ]; then

        USER="`id -un`"

        LOGNAME=$USER

        MAIL="/var/spool/mail/$USER"

fi

HOSTNAME=`/bin/hostname`

HISTSIZE=1000

if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then

    INPUTRC=/etc/inputrc

fi

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC

for i in /etc/profile.d/*.sh ; do

    if [ -r "$i" ]; then

        if [ "$PS1" ]; then

            . $i

        else

            . $i >/dev/null 2>&1

        fi

    fi

done

unset i

unset pathmunge

if [ $USER = "oracle" ]; then

        if [ $SHELL = "/bin/ksh" ]; then

              ulimit -p 16384

              ulimit -n 65536

        else

              ulimit -u 16384 -n 65536

        fi

fi

"/etc/profile" 74L, 1234C written

[root@rac2 ~]# 

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