The very short (and incomplete) explanation is this: 
some_block_creating_statement_like_if_or_sub {
  my $session = ....;

  # do stuff with $session

  some_other_block {
     # $session is available here
  }

  # end of block
}

# $session will be out of scope here.
# so it won't be available and if it's not passed to
# some other variable that is available here it will
# be gone, and the telnet session will be closed.

[download]
See also perlfaq7's "What’s the difference between dynamic and lexical (static) scoping?"
"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^6: Remote Session Starting by Joost
in thread Remote Session Starting by Anonymous Monk

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