Make FreeRDP prompt user for username and password?

At the moment, I'm using the following command to start an FreeRDP session: $ sudo xfreerdp /v:farm.company.com /d:company.com \ /u:oshiro /p:oshiro_password /g:rds.company.com Works fine. However, I don't want the password to be in the command line like that. So I tried it without the password: $ sudo xfreerdp /v:farm.company.com /d:company.com /u:oshiro /g:rds.company.com And I got a connection failure message instead of some sort of dialog box or prompt asking me to enter in a password. Is it possible to get this to prompt the user for a password? --- **UPDATE: Omitting the /p switch** Without the /p switch, I get the following: oshiro@ubuntu:~$ xfreerdp /v:farm.company.com /d:company.com -u:oshiro /g:rds.company.com connected to rds.company.com:443 connected to rds.company.com:443 Could not open SAM file! Could not open SAM file! Could not open SAM file! Could not open SAM file! rts_connect error! Status Code: 401 HTTP/1.1 401 Unauthorized Content-Type: text/plain Server: Microsoft-IIS/7.5 WWW-Authenticate: Negotiate WWW-Authenticate: NTLM WWW-Authenticate: Basic realm="rds.company.com" X-Powered-By: ASP.NET Date: Sun, 23 Mar 2014 10:40:30 GMT +12 Content-Length: 13 rts_connect error! rpc_connect failed! Error: protocol security negotiation or connection failure