Answer by
thorsdecree (409)
Short answer: yes. Research HTTP proxies, PHP proxies, URL obfuscation, hexadecimal IP addresses, decimal IP addresses, octal IP addresses, and HTTP auth password cracking. Most school firewalls are weak to one of these methods. I have gotten past firewalls myself by cracking the authentication passwords for the school proxy (got teacher's pass) and by using decimal/octal/hexadecimal IP addresses.