14 lines Perl code needs very detailed commenting as well as what overall function is of the file

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Project Description:
14 lines Perl code needs very detailed commenting as well as what overall function is of the file.

The code is from an opensource firewall app www.ipfire.org where/which i *suspect* that the file has been tampered with (or the code should not have been there) in order to make 3rd party hacker get VPN connection automatillcay thru the firewall installation.

Your job is to comment the 14 lines of Perl code much more throroughly and answer the questions very detailed in order for to get a very deep understanding of that file and its purpose and actions.

There is already comments for every 1-2 lines of code.

1. I want to get these 14 lines of Perl code commented again and more detailed
since it is my impression that extra code has been inserted into the file after the commenting (or, that this code should never
have exisitined in the application at all).
Your answers must be so detailed and yet simple language that a 8 year old child can understand what you answer - and still teach/tell easily someone else what you just answered.

2. Want to get detailed review what is the purpose/action of the file with code.

2.1) Especially am interested in knowing ift this file is to be used for - or could be used for - easily
- to open a VPN connection

2.2) If the code intention is to evade or hide in case that some specific circumstance occur/does not occur.
If so, in what circmstances will the code do/not do the action - and what action is it it will do/or not do?

remaining specs are in the enclosed file that contains:
1 file with source code only
1 file with parts of soiurce code and specific questions that your comments need to answer
(also contains an optional bonus part in case you want to make $25 extra).

Please write why you are the right coder for this project and what related experienced you have with perl code and commenting perl code as well as how many years?


Skills required:
Additional Files: 2 files - 1 with specs - the other file with code only.zip
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