Category Archives: Programming

Perl code to find an IP A in subnet B/C

Posted on June 5, 2007 by admin

my $ip = ‘1.2.3.4’; my $block1 = ‘1.2.3.0/27’; if(checkip($ip, $block1)) { print STDOUT “$ip is in $block1\n”; } else { print STDOUT “$ip is not in $block1\n”; } sub checkip() { my $ip = shift; my $block = shift; @ip1 … Continue reading →

Posted in How Tos, ip addressing, ipv4, networking, perl, Programming | Leave a comment

PHP Header injection

Posted on May 21, 2007 by admin

I regularly shut down web sites that use the PHP mail() function. While the users of the sites mean well, they generally don’t do any checking before sending data to mail(). I’m not going to weigh in mail(). Enough has … Continue reading →

Posted in How Tos, Mail Post, php, Programming | Leave a comment

Panic Releases Coda, and I can’t use it

Posted on May 17, 2007 by admin

http://www.panic.com/ released Coda a web-oriented IDE that contains a terminal, FTP, SSH, etc. all rolled in to one. It looks great and I want it, but it’s Mac only. Some day…

Posted in IDE, Programming, Software | Leave a comment