xfreerdp --help

FreeRDP - A Free Remote Desktop Protocol Client
See http://www.freerdp.com for more information

Usage: xfreerdp [options] server:port
  -0: connect to console session
  -a: set color depth in bits, default is 16
  -c: shell working directory
  -D: hide window decorations
  -T: window title
  -d: domain
  -f: fullscreen mode
  -g: set geometry, using format WxH or X% or 'workarea', default is 1024x768
  -h: print this help
  -k: set keyboard layout ID
  -K: do not interfere with window manager bindings (don't grab keyboard)
  -n: hostname
  -o: console audio
  -p: password
  -s: set startup-shell
  -t: alternative port number, default is 3389
  -u: username
  -x: performance flags (m[odem], b[roadband] l[an], or a bit-mask)
  -X: embed into another window with a given XID.
  -z: enable compression
  --app: RemoteApp connection. This implies -g workarea
  --ext: load an extension
  --no-auth: disable authentication
  --authonly: authentication only, no UI
  --from-stdin: unspecified username, password, domain and hostname params are prompted
  --help: print this help
  --no-fastpath: disable fast-path
  --gdi: graphics rendering (hw, sw)
  --no-motion: don't send mouse motion events
  --no-osb: disable offscreen bitmaps
  --no-bmp-cache: disable bitmap cache
  --plugin: load a virtual channel plugin
  --rfx: enable RemoteFX
  --rfx-mode: RemoteFX operational flags (v[ideo], i[mage]), default is video
  --nsc: enable NSCodec (experimental)
  --disable-wallpaper: disables wallpaper
  --composition: enable desktop composition
  --disable-full-window-drag: disables full window drag
  --disable-menu-animations: disables menu animations
  --disable-theming: disables theming
  --kbd-list: list all keyboard layout ids used by -k
  --no-rdp: disable Standard RDP encryption
  --no-tls: disable TLS encryption
  --no-nla: disable network level authentication
  --ntlm: force NTLM authentication protocol version (1 or 2)
  --certificate-name: use the argument as the logon certificate, instead of the server name
  --ignore-certificate: ignore verification of logon certificate
  --sec: force protocol security (rdp, tls or nla)
  --secure-checksum: use salted checksums with Standard RDP encryption
  --version: print version information