Brain Goo

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 # cat /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts 0 #

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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 perl-5.12.3.tar cd perl-5.12.3 ./Configure -d -Dprefix=/custom/perl/perl-5_12_3 make make test make install /custom/perl/perl-5_12_3/bin/perl -v /custom/perl/perl-5_12_3/bin/perl -e [...]

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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 code. What we’re doing in a nutshell is telling PERL to push values on to [...]

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