#$perl -w                            
use Data::Dumper ;                            
use warnings ;                                
use strict ;                                  

my %hash  = ( "file" =>"log.txt" , size => "1000kb") ;
$Data::Dumper::Deepcopy =1;

my $send_string = Dumper \%hash;

# Pretend that $send_string has been sent across the socket, then recvd.

# Since $sendstring starts with $VAR1={...}, for "strict", we need 
# to pre-pend the "my", such that it reads "my $VAR1={...}"
my $rcv_string = "my " . $send_string;

my %hash_rehydrated = %{ +eval $rcv_string }; # Assuming trust here...

print Dumper \%hash_rehydrated;