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.
SOCKS proxy via an Intermediate Host [edit]. If you want to open a SOCKS proxy via an intermediate host, it is possible: The client will see a SOCKS proxy on port 8001 on the local host, which is actually a connection to machine1 and traffic will ultimately enter and leave the net through machine2.