The White Screen of Death (Completely Blank Page)
Enable Error Reporting
Although it may be turned off on commercial hosts and production sites (for good reason, so that users do not see the errors), these errors are one of your best tools for troubleshooting. To enable error reporting, temporarily edit your index.php file (normally located in your root directory) directly after the first opening PHP tag (do not edit the actual file info!) to add the following:
<?php
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
alix vpn performance
squidclamav debian
ext4 no journal
drupal e apc
http://2bits.com/articles/high-php-execution-times-drupal-and-tuning-ap…
Fortunately I found the solution here http://thread.gmane.org/gmane.linux.drivers.ndiswrapper.general/3121 , which is to add these lines to /etc/sysctl.conf, and run "sysctl -p" to update the settings:
kernel.shmmax = 67108864
kernel.shmall = 67108864
zenmap
#aptitude install zenmap
~gksu zenmap
nmap -sS -p 80,8080 -O 188.93.196.0/24
http://serverfault.com/questions/115063/nmap-check-if-port-80-and-8080-…
vlan
unresponsive web interface
killall -9 php; killall -9 lighttpd; /etc/rc.restart_webgui