I have been told I need to use qw somewhere....where,

Using qw is never required, but it does save some typing (no need for all those commas or quotes) and it can make the code a little easier to read. So, you could use it in your code as follows:

my @servers = qw(
    213.123.20.134
    213.123.20.119
    213.123.20.120
);
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