The SOCKS5_USER setting specifies the user name to use when authenticating to another SOCKS server. This is used when the SOCKS server is routed through another downstream SOCKS server which requires authentication.
Syntax
set SOCKS5_USER user-name
Parameters
user-name is the user name the SOCKS server will use when authenticating to another SOCKS server.
Example
set SOCKS5_USER mozilla