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.
How to setup a socks5 proxy server using Shadowsocks ShadowSocks is a cross platform and fast tunnel proxy that helps you bypass firewalls available for Windows, Mac, Linux, Android and iPhone. Its a secure socks5 proxy, designed to protect your Internet traffic.