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March 13, 2026

Archives: 3 November 2009

November 3, 2009

one line perl command to get the @INC array

by viggy — Categories: perl, programming, tech — Tags: , Leave a comment

Below is a one line command to display all the entry in @INC array which contains the paths where perl programs looks for perl modules.

perl -e ‘foreach $_ (@INC){ print $_,”n”};’

November 3, 2009

To allow forwarding of a port in the server

by viggy — Categories: tech — Tags: , , , Leave a comment

Well I needed to forward port 587 in my server so that Thunderbird installed in my local desktop could send mails through gmail account.
Here is how I did it.

iptables -I FORWARD -p tcp –dport 587 -j ACCEPT

What the above command does exactly is writes a (-I) inserts a new rule in the FORWARD chain which (-j) ACCEPTs all packets following (-p) tcp protocol and (–dport) destination port 587