[root@gw log]# du -k --max-depth=1 | sort -nr
988596 .
31264 ./httpd
3984 ./audit
60 ./cups
36 ./prelink
16 ./mail
12 ./pm
8 ./vbox
8 ./ppp
8 ./iptraf
8 ./conman
[root@gw log]# du -sk /home/* | sort -rn
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To get the inforamtion which is the default kernel use this command:
# grubby --default-kernel
/boot/vmlinuz-2.6.18-274.el5
To update the default kernel with a parameter you can do this:
grubby --update-kernel="$( grubby --default-kernel )" --args="crashkernel=512M@16M"
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To use the script below to remotely reset HP server vith ILO, you have to create the fence user in ILO and assign permission to remotely reset the server.
#!/bin/bash
# name: fence_server
# desc: the script resets the server remotely via iLO2 (HP servers)
# if the server is not pingable. the script tries to ping
# the server several times before issuing reset.
#
# req: package cman must be installed (includes /sbin/fence_ilo)
SCRIPT_NAME=`basename $0`
TMP_FILE=/tmp/$$.tmp
SYSLOG_FACILITY="user"
SYSLOG_SEVERITY="info"
# server to ping
#SERVERNAME="xxxx"
SERVERNAME="xx.xx.xx.xx"
# ilo to server
ILO_HOSTNAME="xxxx-console"
ILO_ACCOUNT="fence"
ILO_PASSWD="xxxx"
# retries before kill
WAIT_ROUNDS=3 # 3 retries
WAIT_TIME=600 # 10 minutes
# try to ping the server
for waits in $( seq 1 $WAIT_ROUNDS )
do
ping -q -c 3 $SERVERNAME > /dev/null
[ $? -eq 0 ] && exit
sleep $WAIT_TIME
done
# server is not reachable via ICMP, perform reset
> $TMP_FILE
echo "$SCRIPT_NAME is trying to reset the server $SERVERNAME via $ILO_HOSTNAME" >> $TMP_FILE
# do the fence
/sbin/fence_ilo -a $ILO_HOSTNAME -l $ILO_ACCOUNT -p $ILO_PASSWD -v >> $TMP_FILE
# log the output to syslog
while read line
do
logger -t "$SCRIPT_NAME[$$]" -p "$SYSLOG_FACILITY.$SYSLOG_SEVERITY" "$line"
done < $TMP_FILE
rm $TMP_FILE
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http://www.linuxexpres.cz/blog/openvpn-poprve
http://openvpn.net/index.php/access-ser ... ients.html
http://www.secure-computing.net/wiki/in ... PN/Routing
ccd/client file must contain:
iroute 10.10.3.0 255.255.255.0
where the 10.10.3.0 is the LAN beyond the client (ie.router)
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http://www.venganza.org
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Nagios Plugin: check_esxi_hardware.py
This is a Nagios plugin to monitor the hardware of mainly ESXi servers. It can as well be used for ESX servers but there are better plugins in combination with OpenManage or InsightAgents available. The plugin is written in python, so you need to have python installed.
http://www.claudiokuenzler.com/nagios-p ... rdware.php
http://www.claudiokuenzler.com/nagios-p ... ardware.py
Procedures to install ASM-CIMProvider and RemoteArcconf for VMware ESXi 4.1
http://download.adaptec.com/pdfs/instal ... 3_2011.pdf
Hardware Health Monitoring via CIM, part 5
http://blogs.vmware.com/esxi/2010/07/ha ... art-5.html
Adaptec RAID Check by Anchor Systems
http://exchange.nagios.org/directory/Pl ... ms/details
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Staff Paper
http://cnx.org/content/m10856/latest/staffpaper1.pdf
Diminished Scale
http://www.creativekeyboard.com/backiss ... /minor.pdf
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To create ramdisk to process the data within
# mkdir /var/ramdisk
# mount -t tmpfs none /var/ramdisk -o size=12G
Wiki: http://en.wikipedia.org/wiki/Tmpfs
tmpfs is a common name for a temporary file storage facility on many Unix-like operating systems. It is intended to appear as a mounted file system, but stored in volatile memory instead of a persistent storage device. A similar construction is a RAM disk, which appears as a virtual disk drive and hosts a disk file system.
Everything stored in tmpfs is temporary in the sense that no files will be created on the hard drive; however, swap space is used as backing store in case of low memory situations. On reboot, everything in tmpfs will be lost.
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http://www.youtube.com/user/weeklypiano
How to Play an Andy Laverne Pedal Point
http://video.answers.com/how-to-play-an ... -306972909
How to Play Piano: Practicing C9's
http://video.answers.com/how-to-play-pi ... 9s-2459423
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