Author Archives: admin

Linux HOWTO Enable Miltucast Ping (ICMP) Replies (Echo)

Posted on April 21, 2011 by admin

The 2.6 Linux kernel does not respond to multicast ICMP Echo requests by default. This is a setting in /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts Test it: # cat /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts 1 # Set it to 0 for ping replies: # echo “0” > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts # … Continue reading →

Posted in How Tos, linux, networking | Leave a comment

Build A Custom PERL Installation

Posted on April 11, 2011 by admin

If you want to build a PERL installation that is separate from your standard PERL, you can compile one, complete with CPAN support. Just follow these steps: mkdir /custom/perl/ cd /custom/perl/ curl -O http://www.cpan.org/src/perl-5.12.3.tar.gz mkdir perl-5_12_3 gunzip perl-5.12.3.tar.gz tar -xf … Continue reading →

Posted in How Tos, perl, Programming | 2 Comments

How To Pass PERL Library Paths From The Environment

Posted on April 11, 2011 by admin

You can have PERL look in different places for libraries and modules using a number of methods. If you find yourself using a custom PERL module repository, you can make sure your PERL programs always reference it without touching the … Continue reading →

Posted in How Tos, perl, Programming | 3 Comments