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Author Archives: Spechal
Varnish init script
*To update with more useful information* Bash script to handle Varnish start, stop, restart and reload. Built after Varnish 3 was compiled from source. #!/bin/bash # description: Varnish Start Stop Restart # processname: varnishd # chkconfig: 234 … Continue reading
Apache memory used per process
*To update with more useful information* ps -ylC httpd –sort:rss | grep -v RSS | awk ‘{print "Proccess "++n" is using "$8/1024"MB"} {sum+=$8}; END {print "\nTotal Memory Used: "sum/1024/1024"GB"}’; Output: Proccess 1 is using 37.1914MB Proccess 2 is using 118.828MB … Continue reading
Very simple MySQL backup bash script
This code backups up mysql databases and gzips them into the current working directory. If you want to backup the mysql table, remove it from the for loop. #!/bin/bash usage(){ echo “Usage $0 <mysql_user> <mysql_password> [host]” exit 1 } if … Continue reading
Posted in bash, Commands, Linux, MySQL
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Installing php-ffmpeg on CentOS 5.x
This can be a pain due to a bug in the ffpmeg_frame.c file … here are the commands to get up and going yum -y install ffmpeg ffmpeg-devel wget http://sourceforge.net/projects/ffmpeg-php/files/ffmpeg-php/0.6.0/ffmpeg-php-0.6.0.tbz2/download tar jxvf ffmpeg-php-0.6.0.tbz2 sed -i ‘s/PIX_FMT_RGBA32/PIX_FMT_RGBA/g’ ffmpeg-php-0.6.0/ffmpeg_frame.c cd ffmpeg-php-0.6.0 && … Continue reading
Common Power Amp Resistance Watt Formulas
P is Power, also known as Volts, also known as Electromotive Force (EMF). I is Resistance, measured in Ohms E is Amps, also known as Current W is Watts, the multiplication of Power and Amperes. kW is kilo-Watts, also known … Continue reading
Posted in Electricity, Electronics
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Plaintext Offender : BidVertiser
If you have an account with BidVertiser, your password is stored in plain text and emailed back to you when you request it. This also means customer service can look up your account and get your password. I informed them … Continue reading
Search / Replace in files with Linux
I used this command to search over some Apache 2 vhost files to change them from port 8080 to port 80 with Debian. find /etc/apache2/sites-enabled -name “*com” -exec sed -i ‘s/8080/80/g’ {} \; Bookmark on Delicious Digg this post Recommend … Continue reading
Posted in Commands, Linux
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Low Level Format Disk Drive with Linux
Doing a log level format with linux is super easy. Make sure the drive you want to format is not mounted and determine the device in /dev/ i.e. /dev/sdb Enter the following command to turn all the bits on the … Continue reading
Posted in Linux, Security
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