Monthly Archives: April 2007

Playing with Wake-On-Lan (WOL)

Posted on April 8, 2007 by DaveK

Pre-req:+ Must have php5 with –enable-sockets What is a magic packet?It’s a udp packet sent through the broadcast address to all servers on the network (ie, all servers serviced by the broadcast address). It’s called magic, because the format of … Continue reading →

Posted in Code | Leave a comment

Net_IPv4 Coolness

Posted on April 8, 2007 by DaveK

Available from the PEAR website, http://pear.php.net/package/Net_IPv4, the Net_IPv4 package is pretty cool. Check this out: <?phprequire_once(“IPv4.php”);$ip = $argv[1];$netmask = $argv[2]; $ip_calc = new Net_IPv4();$ip_calc->ip = $ip;$ip_calc->netmask = $netmask;$ip_calc->calculate();$ip_calc->min = $ip_calc->network;$ip_calc->max = $ip_calc->broadcast;$ip_calc->min_long = $ip_calc->ip2double($ip_calc->network);$ip_calc->max_long = $ip_calc->ip2double($ip_calc->broadcast);$ip_calc->gateway = long2ip($ip_calc->max_long-1); print_r($ip_calc);?> Share … Continue reading →

Posted in Code | Leave a comment