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Capturing frames of ASX / MMS stream with MPlayer

January 20th, 2010 No comments

This will allow you to capture a single frame from a ASX / ASF / MMS stream. Be aware if the ASX contains more than 1 file, you will get more than 1 screen capture. Also remember to use the playlist option for ASX streams

mplayer -playlist http://xxxxx -ss 1 -frames 1 -vo jpeg

When building mplayer you will need libjpeg – do mplayer -vo help to list available output options.

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Count number of open files in LINUX

December 9th, 2009 No comments

lsof | wc -l

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Notes on installing pgbouncer

September 15th, 2009 No comments

.. this is me just dumping my brain from the office after installing pgbouncer. FYI it works great, and really does improve the speed for db generated web pages. Don’t take this as THE install method, this is just notes so I can remember how to do it again :P

Get the source from pgfoundry ( I put it in /usr/local )
wget http://pgfoundry.org/frs/download.php/2284/pgbouncer-1.3.1.tgz

Unpack it
gunzip -c pgbouncer-1.3.1.tgz | tar -xv

Get / unpack / make libevent if not already installed
wget http://www.monkey.org/~provos/libevent-1.4.12-stable.tar.gz
gunzip -c libevent-1.4.12-stable.tar.gz | tar -xv
cd libevent-1.4.12-stable
./configure
make
make install

Back to pgbouncer
cd pgbouncer-1.3.1
./configure
make
make install

Move the ini and user files to /etc so I know where they are
mv etc/pgbouncer.ini /etc/
mv userlist.txt /etc/

Edit the userlist.txt to add user
Edit the pgbouncer.ini to point to new locations
auth_file = /etc/userlist.txt
logfile = /var/log/pgbouncer.log
pidfile = /tmp/pgbouncer.pid

Add libevent module ( fixed library not found error )
vi /etc/ld.so.conf.d/libevent-i386.conf

add line
/usr/local/lib

Run ldconfig to take new settings
ldconfig

I added the following to the START of postgresql in /etc/init.d
$SU -l postgres -c "pgbouncer -d /etc/pgbouncer.ini"

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ls sort by date

September 7th, 2009 No comments

ls -l|sort -n +4

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Blocking the searchme.com bot

July 15th, 2008 No comments

Nice idea for a search engine, however, their bot is a disrespectful bastard, doesn’t obey robots.txt, plus as it’s a visual search engine, processes Javascript tracking which throws your stats off.

Block it using iptables thus

iptables -I INPUT -m iprange --src-range 165.193.254.1-165.193.254.254 -j DROP
iptables -I INPUT -m iprange --src-range 208.111.154.1-208.111.154.254 -j DROP

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