Procurement executives often are overzealous or unrealistic about the rate of change that is possible around indirect spend aggregation within an organization. It is virtually impossible to get all of the internal stakeholders on board at the very beginning.
Socks 5 - is the most used and secure proxy protocols,Suport both TCP and UDP,with UDP you can get Name resolution(DNS lookups) and authentication.You can use the Socks5 proxy instead of Socks4 proxy,More over you can use the it's for ICQ,Skype and so on.
A Tor user's SOCKS-aware applications can be configured to direct their network traffic through a Tor instance's SOCKS interface. Tor periodically creates virtual circuits through the Tor network through which it can multiplex and onion-route that traffic to its destination. Once inside a Tor network, the traffic is sent from router to router along the circuit, ultimately reaching an exit node at which point the cleartext packet is available and is forwarded on to its original destination.