compress or optimize image

# jpegoptim --max=50 *.JPG; chmod 777 *

# find / -type f -name *.JPG -exec jpegoptim --max=50 {} \;

# find / -type f -name *.JPG -exec chmod 777 {} \;

Solaris 10 - Add swap file

To Add swap files:
1. mkdir -p /usr/local/swap
2. mkfile 20m /usr/local/swap/swapfile
3. swap -a /usr/local/swap/swapfile
4. echo "/usr/local/swap/swapfile - - swap - no -" >> /etc/vfstab
5. swap -s

Solaris - Add routing table

route -p [add/delete] [hostname] [gateway] -ifp [interface]

p = permanent

convert flv to mp4

ffmpeg -i input.flv -vcodec copy -acodec copy output.mp4

Solaris - how to Resync mirror in raid 1

# metaoffline mirror submirror
# metaonline mirror submirror


From Oracle:
"During a reboot following a system failure, or when a submirror that was offline is brought back online, Solaris Volume Manager performs an optimized mirror resynchronization. The metadisk driver tracks submirror regions. This functionality enables the metadisk driver to know which submirror regions might be out-of-sync after a failure. An optimized mirror resynchronization is performed only on the out-of-sync regions. You can specify the order in which mirrors are resynchronized during reboot. You can omit a mirror resynchronization by setting submirror pass numbers to zero"

Solaris file clean up

1. Crash dump file --> /var/crash/dumpfile
2. Explorer file   --> /opt/SUNWexplo/output/*.tar.gz
3. Sar output file --> /var/adm/sa/sar*
4. Patch undo file --> find /var -name undo.Z

(reference : http://www.runningunix.com/2009/02/cleaning-out-var-in-solaris/ )

It is recommended to move those file to other directory instead of remove it.

Solaris - GUI and CLI mode using dtlogin

Stopping dtlogin
# /etc/init.d/dtlogin stop

Starting dtlogin
# /etc/init.d/dtlogin start

To enable dtlogin type command:
# /usr/dt/bin/dtconfig -e

To disable dtlogin
# /usr/dt/bin/dtconfig -d

To kill dtlogin type command:
# /usr/dt/bin/dtconfig -kill

Read man page of dtlogin for more information.

How to update Sun V240 firmware

1. Download Sun V240 firmware from Sun System Handbook
2. Run explorer and collect output if possible
3. Screen shot current firmware (prtdiag -v)
4. Make sure OBP --> auto-boot=true and boot-device=disk0
5. Run step below at OS level
    # unzip 121683-06.zip
    # cd 121683-06
    # ./unix.flash-update.SunFire240.sh

How to enable CGI script in Apache

Step 1:
vi /etc/apache2/httpd.conf
add this line
    "AddHandler cgi-script .cgi .pl"
save & exit


Step 2:
vi /etc/apache2/sites-enabled/000-default
add "+ExecCGI" under Options line

        Options Indexes FollowSymLinks MultiViews +ExecCGI
        AllowOverride None
        Order allow,deny
        allow from all


Step 3:
service apache2 restart