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sdl2-freerdp3(1) sdl2-freerdp3 sdl2-freerdp3(1) NAME sdl2-freerdp3 - FreeRDP SDL client SYNOPSIS sdl2-freerdp3 [file] [options] [/v:server[:port]] DESCRIPTION sdl2-freerdp3 is an SDL Remote Desktop Protocol (RDP) client which is part of the FreeRDP project. An RDP server is built-in to many editions of Win- dows. Alternative servers included ogon, gnome-remote-desktop, xrdp and VRDP (VirtualBox). OPTIONS /a:addin[,options], /addin:addin[,options] Addin /azure:[tenantid:id],[use-tenantid[:[on|off]],[ad:url][avd-access:format string],[avd-token:format string],[avd-scope:format string] AzureAD options /action-script:file-name Action script (default:~/.config/freerdp/action.sh) /admin, /console Admin (or console) session +aero desktop composition (default:off) /app:program:[path|||alias],cmd:command,file:filename,guid:guid,icon:file- name,name:name,workdir:directory,hidef:[on|off] Remote application program /app-cmd:parameters [DEPRECATED, use /app:cmd:<command>] Remote application command-line parameters /app-file:file-name [DEPRECATED, use /app:file:<filename>] File to open with remote appli- cation /app-guid:app-guid [DEPRECATED, use /app:guid:<guid>] Remote application GUID /app-icon:icon-path [DEPRECATED, use /app:icon:<filename>] Remote application icon for user interface /app-name:app-name [DEPRECATED, use /app:name:<name>] Remote application name for user in- terface /app-workdir:workspace path [DEPRECATED, use /app:workdir:<directory>] Remote application workspace path /assistance:password Remote assistance password /auto-request-control: Automatically request remote assistance input control +async-channels Asynchronous channels (experimental) (default:off) +async-update Asynchronous update (default:off) /audio-mode:[[none|0]|[redirect|1]|[server|2]] Audio output mode +auth-only Authenticate only (default:off) /auth-pkg-list:[[none],]!ntlm,kerberos,!u2u Authentication package filter (comma-separated list, use '!' to dis- able). By default all methods are enabled. Use explicit 'none' as first argument to disable all methods, selectively enabling only the ones following. -authentication Authentication (experimental) (default:on) +auto-reconnect Automatic reconnection (default:off) /auto-reconnect-max-retries:retries Automatic reconnection maximum retries, 0 for unlimited [0,1000] +bitmap-cache [DEPRECATED, use /cache:bitmap[:on|off]] bitmap cache (default:off) +persist-cache [DEPRECATED, use /cache:persist[:on|off]] persistent bitmap cache (de- fault:off) /persist-cache-file:filename [DEPRECATED, use /cache:persist-file:<filename>] persistent bitmap cache file /bpp:depth Session bpp (color depth) (default:16) /buildconfig Print the build configuration /cache:[bitmap[:on|off],codec[:rfx|nsc],glyph[:on|off],off- screen[:on|off],persist,persist-file:filename] /cert:[deny,ignore,name:name,tofu,fingerprint:hash:hash as hex[,finger- print:hash:another hash]] Certificate accept options. Use with care! * deny ... Automatically abort connection if the certificate does not match, no user interaction. * ignore ... Ignore the certificate checks altogether (overrules all other options) * name ... Use the alternate <name> instead of the certificate subject to match locally stored certificates * tofu ... Accept certificate unconditionally on first connect and deny on subsequent connections if the certificate does not match * fingerprints ... A list of certificate hashes that are accepted un- conditionally for a connection /cert-deny [DEPRECATED, use /cert:deny] Automatically abort connection for any certificate that can not be validated. /cert-ignore [DEPRECATED, use /cert:ignore] Ignore certificate /cert-name:name [DEPRECATED, use /cert:name:<name>] Certificate name /cert-tofu [DEPRECATED, use /cert:tofu] Automatically accept certificate on first connect /client-build-number:number Client Build Number sent to server (influences smartcard behaviour, see [MS-RDPESC]) /client-hostname:name Client Hostname to send to server /clipboard:[[use-selection:atom],[direction-to:[all|local|re- mote|off]],[files-to[:all|local|remote|off]]] Redirect clipboard: * use-selection:<atom> ... (X11) Specify which X selection to access. Default is CLIPBOARD. PRIMARY is the X-style middle-click selection. * direction-to:[all|local|remote|off] control enabled clipboard direc- tion * files-to:[all|local|remote|off] control enabled file clipboard di- rection (default:on) /codec-cache:[rfx|nsc|jpeg] [DEPRECATED, use /cache:codec:[rfx|nsc|jpeg]] Bitmap codec cache -compression, -z compression (default:on) /compression-level:level Compression level (0,1,2) +credentials-delegation credentials delegation (default:off) /d:domain Domain -decorations Window decorations (default:on) /disp Display control /drive:name,path Redirect directory <path> as named share <name>. Hotplug support is en- abled with /drive:hotplug,*. This argument provides the same function as "Drives that I plug in later" option in MSTSC. +drives Redirect all mount points as shares (default:off) /dump:record|replay,file:file[,nodelay] record or replay dump /dvc:channel[,options] Dynamic virtual channel +dynamic-resolution Send resolution updates when the window is resized (default:off) /echo, /echo Echo channel -encryption Encryption (experimental) (default:on) /encryption-methods:[40,][56,][128,][FIPS] RDP standard security encryption methods /endpointfedauth:token Endpoint FedAuth token for Hyper-V VM console-connect scenarios /f Fullscreen mode (<Ctrl>+<Alt>+<Enter> toggles fullscreen) +fipsmode FIPS mode (default:off) /floatbar[:sticky:[on|off],default:[visible|hidden],show:[al- ways|fullscreen|window]] floatbar is disabled by default (when enabled defaults to sticky in fullscreen mode) -fonts smooth fonts (ClearType) (default:on) +force-console-callbacks Use default callbacks (console) for certificate/credential/... (de- fault:off) /frame-ack:number Number of frame acknowledgement /args-from:file:file|stdin|fd:number|env:name Read command line from a file, stdin or file descriptor. This argument can not be combined with any other. Provide one argument per line. /from-stdin[:force] Read credentials from stdin. With <force> the prompt is done before connection, otherwise on server request. /gateway:g:gateway[:port],u:user,d:domain,p:password,usage-method:[di- rect|detect],access-token:token,type:[rpc|http[,no-websockets][,ex- tauth-sspi-ntlm]|auto[,no-websockets][,ex- tauth-sspi-ntlm]]|arm,url:wss://url,bearer:oauth2-bearer-token, /gw:g:gate- way[:port],u:user,d:domain,p:password,usage-method:[direct|detect],ac- cess-token:token,type:[rpc|http[,no-websockets][,ex- tauth-sspi-ntlm]|auto[,no-websockets][,ex- tauth-sspi-ntlm]]|arm,url:wss://url,bearer:oauth2-bearer-token Gateway Hostname /g:gateway[:port] [DEPRECATED, use /gateway:g:<url>] Gateway Hostname /gateway-usage-method:[direct|detect], /gum:[direct|detect] [DEPRECATED, use /gateway:usage-method:<method>] Gateway usage method /gd:domain [DEPRECATED, use /gateway:d:<domain>] Gateway domain /gdi:sw|hw GDI rendering /geometry Geometry tracking channel +gestures Consume multitouch input locally (default:off) /gfx[:[[progres- sive[:on|off]|RFX[:on|off]|AVC420[:on|off]AVC444[:on|off]],mask:value,small-cache[:on|off],thin-client[:on|off],pro- gressive[:on|off],frame-ack[:on|off]] RDP8 graphics pipeline /gfx-h264[:[[AVC420|AVC444],mask:value]] [DEPRECATED, use /gfx:avc420] RDP8.1 graphics pipeline using H264 codec +gfx-progressive [DEPRECATED, use /gfx:progressive] RDP8 graphics pipeline using pro- gressive codec (default:off) -gfx-small-cache [DEPRECATED, use /gfx:small-cache] RDP8 graphics pipeline using small cache mode (default:on) +gfx-thin-client [DEPRECATED, use /gfx:thin-client] RDP8 graphics pipeline using thin client mode (default:off) +glyph-cache [DEPRECATED, use /cache:glyph[:on|off]] Glyph cache (experimental) (de- fault:off) /gp:password [DEPRECATED, use /gateway:p:<password>] Gateway password -grab-keyboard Grab keyboard focus, forward all keys to remote (default:on) -grab-mouse Grab mouse focus, forward all events to remote (default:on) /gt:[rpc|http[,no-websockets][,extauth-sspi-ntlm]|auto[,no-websockets][,ex- tauth-sspi-ntlm]] [DEPRECATED, use /gateway:type:<type>] Gateway transport type /gu:[[domain]user|user[@domain]] [DEPRECATED, use /gateway:u:<user>] Gateway username /gat:access token [DEPRECATED, use /gateway:access-token:<token>] Gateway Access Token /h:height Height (default:768) -heartbeat Support heartbeat PDUs (default:on) /help, /? Print help +home-drive Redirect user home as share (default:off) /ipv4[:[:force]], /4[:[:force]] Prefer IPv4 A record over IPv6 AAAA record /ipv6[:[:force]], /6[:[:force]] Prefer IPv6 AAAA record over IPv4 A record /kbd:[layout:[0xid|name],lang:0xid,fn-key:value,type:value,sub- type:value,unicode[:on|off],remap:key1=value1,remap:key2=value2,pipe:file- name] Keyboard related options: * layout: set the keybouard layout announced to the server * lang: set the keyboard language identifier sent to the server * fn-key: Function key value * remap: RDP scancode to another one. Use /list:kbd-scancode to get the mapping. Example: To switch 'a' and 's' on a US keyboard: /kbd:remap:0x1e=0x1f,remap:0x1f=0x1e * pipe: Name of a named pipe that can be used to type text into the RDP session /kbd-lang:0xid [DEPRECATED, use / kbd:lang:<value>] Keyboard active language identi- fier /kbd-fn-key:value [DEPRECATED, use /kbd:fn-key:<value>] Function key value /kbd-list [DEPRECATED, use /list:kbd] List keyboard layouts /kbd-scancode-list [DEPRECATED, use list:kbd-scancode] List keyboard RDP scancodes /kbd-lang-list [DEPRECATED, use /list:kbd-lang] List keyboard languages /kbd-remap:[DEPRECATED, use /kbd:remap] List of key=value,... pairs to remap scancodes Keyboard scancode remapping /kbd-subtype:id [DEPRECATED, use /kbd:subtype]Keyboard subtype /kbd-type:id [DEPRECATED, use /kbd:type] Keyboard type /kbd-unicode: [DEPRECATED, use /kbd:unicode[:on|off]] Send unicode symbols, e.g. use the local keyboard map. ATTENTION: Does not work with every RDP server! /kerberos:[kdc-url:url,lifetime:time,start-time:time,renewable-life- time:time,cache:path,armor:path,pkinit-anchors:path,pkcs11-module:name] Kerberos options /load-balance-info:info-string Load balance info /list:[kbd|kbd-scancode|kbd-lang[:value]|smartcard[:[pkinit-an- chors:path][,pkcs11-module:name]]|monitor|tune|timezones] List available options for subcommand (default:List available options for subcommand) /log-filters:tag:level[,tag:level[,...]] Set logger filters, see wLog(7) for details /log-level:[OFF|FATAL|ERROR|WARN|INFO|DEBUG|TRACE] Set the default log level, see wLog(7) for details /max-fast-path-size:size Specify maximum fast-path update size /max-loop-time:time Specify maximum time in milliseconds spend treating packets +menu-anims menu animations (default:off) /microphone[:[sys:sys,][dev:dev,][format:format,][rate:rate,][channel:chan- nel]], /mic[:[sys:sys,][dev:dev,][format:format,][rate:rate,][channel:chan- nel]] Audio input (microphone) /smartcard-list [DEPRECATED, use /list:smartcard] List smartcard information /monitor-list [DEPRECATED, use /list:monitor] List detected monitors /monitors:id[,id[,...]] [experimental] Select monitors to use (only effective in fullscreen or multimonitor mode) -mouse-motion Send mouse motion events (default:on) +mouse-relative Send mouse motion with relative addressing (default:off) /mouse:[relative:[on|off],grab:[on|off]] Mouse related options: * relative: send relative mouse movements if supported by server * grab: grab the mouse if within the window /multimon[:force] Use multiple monitors +multitouch Redirect multitouch input (default:off) -multitransport Support multitransport protocol (default:on) -nego protocol security negotiation (default:on) /network:[invalid|modem|broadband|broadband-low|broad- band-high|wan|lan|auto] Network connection type /nsc, /nscodec NSCodec support +offscreen-cache [DEPRECATED, use /cache:offscreen[:on|off]] offscreen bitmap cache (de- fault:off) /orientation:[0|90|180|270] Orientation of display in degrees +old-license Use the old license workflow (no CAL and hwId set to 0) (default:off) /p[:password] Password. Pass /p without arguments to silences interactive password prompts if no credentials are required for the connection. /parallel[:name[,path]] Redirect parallel device /parent-window:window-id Parent window id /pcb:blob Preconnection Blob /pcid:id Preconnection Id /pheight:height Physical height of display (in millimeters) /play-rfx:pcap-file Replay rfx pcap file /port:number Server port -suppress-output suppress output when minimized (default:on) +print-reconnect-cookie Print base64 reconnect cookie after connecting (default:off) /printer[:name[,driver[,default]]] Redirect printer device /proxy:[proto://][user:password@]host[:port] Proxy settings: override env. var (see also environment variable be- low). Protocol "socks5" should be given explicitly where "http" is de- fault. /pth:password-hash, /pass-the-hash:password-hash Pass the hash (restricted admin mode) /pwidth:width Physical width of display (in millimeters) /rdp2tcp:executable path[:arg...] TCP redirection /reconnect-cookie:base64-cookie Pass base64 reconnect cookie to the connection /redirect-prefer:FQDN|IP|NETBIOS,[...] Override the preferred redirection order /relax-order-checks, /relax-order-checks Do not check if a RDP order was announced during capability exchange, only use when connecting to a buggy server /restricted-admin, /restrictedAdmin Restricted admin mode /rfx RemoteFX /rfx-mode:[image|video] RemoteFX mode /scale:[100|140|180] Scaling factor of the display (default:100) /scale-desktop:percentage Scaling factor for desktop applications (value between 100 and 500) (default:100) /scale-device:100|140|180 Scaling factor for app store applications (default:100) /sec:rdp[:[on|off]]|tls[:[on|off]]|nla[:[on|off]]|ext[:[on|off]]|aad[:[on|off]] Force specific protocol security. e.g. /sec:nla enables NLA and dis- ables all others, while /sec:nla:[on|off] just toggles NLA +sec-ext [DEPRECATED, use /sec:ext] NLA extended protocol security (default:off) -sec-nla [DEPRECATED, use /sec:nla] NLA protocol security (default:on) -sec-rdp [DEPRECATED, use /sec:rdp] RDP protocol security (default:on) -sec-tls [DEPRECATED, use /sec:tls] TLS protocol security (default:on) /serial[:name[,path[,driver[,permissive]]]], /tty[:name[,path[,driver[,per- missive]]]] Redirect serial device /server-name:name User-specified server name to use for validation (TLS, Kerberos) /shell:shell Alternate shell /shell-dir:dir Shell working directory /size:widthxheight or percent%[wh] Screen size (default:1024x768) /smart-sizing[:widthxheight] Scale remote desktop to window size /smartcard[:str[,str...]] Redirect the smartcard devices containing any of the <str> in their names. /smartcard-lo- gon[:[[cert:path|cert:base64(PEM)],[key:path|key:base64(PEM)],pin:pin,csp:csp name,reader:reader,card:card]] Activates Smartcard (optional certificate) Logon authentication. /sound[:[sys:sys,][dev:dev,][format:format,][rate:rate,][channel:chan- nel,][latency:latency,][quality:quality]], /au- dio[:[sys:sys,][dev:dev,][format:format,][rate:rate,][channel:channel,][la- tency:latency,][quality:quality]] Audio output (sound) /span Span screen over multiple monitors /spn-class:service-class SPN authentication service class /ssh-agent, /ssh-agent SSH Agent forwarding channel /sspi-module:SSPI module path SSPI shared library module file path /winscard-module:WinSCard module path WinSCard shared library module file path /disable-output Deactivate all graphics decoding in the client session. Useful for load tests with many simultaneous connections /t:title, /title:title Window title -themes themes (default:on) /timeout:time in ms, /timeout:time in ms Advanced setting for high latency links: Adjust connection timeout, use if you encounter timeout failures with your connection (default:9000) /timezone:windows timezone Use supplied windows timezone for connection (requires server support), see /list:timezones for allowed values /tls:[ciphers|seclevel|secrets-file|enforce] TLS configuration options: * ciphers:[netmon|ma|<cipher names>] * seclevel:<level>, default: 1, range: [0-5] Override the default TLS security level, might be required for older target servers. Details at https://docs.openssl.org/3.0/man3/SSL_CTX_set_security_level/ * secrets-file:<filename> * enforce[:[ssl3|1.0|1.1|1.2|1.3]] Force use of SSL/TLS version for a connection. Some servers have a buggy TLS version negotiation and might fail without this. Defaults to TLS 1.2 if no argument is supplied. Use 1.0 for windows 7 /tls-ciphers:[netmon|ma|ciphers] [DEPRECATED, use /tls:ciphers] Allowed TLS ciphers /tls-seclevel:level [DEPRECATED, use /tls:seclevel] TLS security level - defaults to 1 (de- fault:1) /tls-secrets-file:filename [DEPRECATED, use /tls:secrets:file] File were TLS secrets will be stored in the SSLKEYLOGFILE format +enforce-tlsv1_2 [DEPRECATED, use /tls:enforce:1.2] Force use of TLS1.2 for connection. Some servers have a buggy TLS version negotiation and might fail with- out this (default:off) -toggle-fullscreen Alt+Ctrl+Enter to toggle fullscreen (default:on) /tune:setting:value,setting:value [experimental] directly manipulate freerdp settings, use with extreme caution! (default:) /tune-list [DEPRECATED, use /list:tune] Print options allowed for /tune /u:[[domain]user|user[@domain]] Username +unmap-buttons Let server see real physical pointer button (default:off) /usb:[dbg,][id:vid:pid#...,][addr:bus:addr#...,][auto] Redirect USB device /v:server[:port] Server hostname|URL|IPv4|IPv6 or vsock://<number> or /some/path/to/pipe or |:1234 to pass a TCP socket to use /vc:channel[,options] Static virtual channel /version Print version /video Video optimized remoting channel /prevent-session-lock[:time in sec] Prevent session locking by injecting fake mouse motion events to the server when the connection is idle (default interval: 180 seconds) /vmconnect[:vmid] Hyper-V console (use port 2179, disable negotiation) /w:width Width (default:1024) -wallpaper wallpaper (default:on) +window-drag full window drag (default:off) /window-position:xposxypos window position /wm-class:class-name Set the WM_CLASS hint for the window instance /workarea Use available work area ENVIRONMENT VARIABLES wlog environment variables sdl2-freerdp3 uses wLog as its log facility, you can refer to the cor- responding man page (wlog(7)) for more information. Arguments passed via the /log-level or /log-filters have precedence over the environment variables. FREERDP_ASKPASS Set a program to ask for passwords similar to SSH_ASKPASS CONFIGURATION FILE Format and Location: The configuration file is stored per user. The XDG_CONFIG_HOME environment variable can be used to override the base directory. This defaults to ~/.config The location relative to XDG_CONFIG_HOME is $XDG_CONFIG_HOME/freerdp/sdl-freerdp.json The configuration is stored in JSON format Supported options: SDL_KeyModMask Defines the key combination required for SDL client shortcuts. Default KMOD_RSHIFT An array of SDL_Keymod strings as defined at https://wiki.lib- sdl.org/SDL2/SDL_Keymod use KEYMOD_NONE to disable hotkeys SDL_Fullscreen Toggles client fullscreen state. Default SDL_SCANCODE_RETURN. A string as defined at https://wiki.libsdl.org/SDL2/SDL_Scan- code SDL_Minimize Minimizes the client window Default SDL_SCANCODE_M. A string as defined at https://wiki.libsdl.org/SDL2/SDL_Scan- code SDL_Resizeable Toggles local window resizeable state. Default SDL_SCANCODE_R. A string as defined at https://wiki.libsdl.org/SDL2/SDL_Scan- code SDL_Grab Toggles keyboard and mouse grab state. If keyboard is grabbed the local system shortcuts do no longer work and are sent to the remote system. If the Mouse is grabbed (optional) local gesture detection does not work and the mouse might not be able to leave the RDP win- dow. Mouse events are not altered.. Default SDL_SCANCODE_G. A string as defined at https://wiki.libsdl.org/SDL2/SDL_Scan- code SDL_Disconnect Disconnects from the RDP session. Default SDL_SCANCODE_D. A string as defined at https://wiki.libsdl.org/SDL2/SDL_Scan- code GLOBAL CONFIGURATION (client common) Format and Location: The configuration files are stored in global system configuration. The common certificate settings location is /usr/local/etc/FreeRDP/cer- tificates.json File format is JSON Supported options: deny JSON boolean Deny the certificate if the check against system SSL store was not successful ignore JSON boolean Ignore certificate failures, just ignore the certificate deny-userconfig JSON boolean If the checks in the global configuration do not accept the certificate do not ask the user certificate-db JSON array An array of JSON objects with: type JSON string a string identifying the hash algorithm used, e.g. sha256 hash JSON string a string of hex integer values representing the certificate hash, e.g. 0123456789abcdef GLOBAL CONFIGURATION (SDL3 client) The SDL3 client configuration location is /usr/local/etc/FreeRDP/sdl- freerdp.json File format is JSON Supported options: isUserConfigEnabled JSON boolean Allow or block per user configuration file support. All user level options from CONFIGURATION FILE can be set here too EXAMPLES sdl2-freerdp3 connection.rdp /p:Pwd123! /f Connect in fullscreen mode using a stored configuration connection.rdp and the password Pwd123! sdl2-freerdp3 /u:USER /size:50%h /v:rdp.contoso.com Connect to host rdp.contoso.com with user USER and a size of 50 percent of the height. If width (w) is set instead of height (h) like /size:50%w. 50 percent of the width is used. sdl2-freerdp3 /u:CONTOSO\\JohnDoe /p:Pwd123! /v:rdp.contoso.com Connect to host rdp.contoso.com with user CONTOSO\\JohnDoe and password Pwd123! sdl2-freerdp3 /u:JohnDoe /p:Pwd123! /w:1366 /h:768 /v:192.168.1.100:4489 Connect to host 192.168.1.100 on port 4489 with user JohnDoe, password Pwd123!. The screen width is set to 1366 and the height to 768 sdl2-freerdp3 /u:JohnDoe /p:Pwd123! /vmcon- nect:C824F53E-95D2-46C6-9A18-23A5BB403532 /v:192.168.1.100 Establish a connection to host 192.168.1.100 with user JohnDoe, pass- word Pwd123! and connect to Hyper-V console (use port 2179, disable negotiation) with VMID C824F53E-95D2-46C6-9A18-23A5BB403532 +clipboard Activate clipboard redirection /drive:home,/home/user Activate drive redirection of /home/user as home drive /smartcard:<device> Activate smartcard redirection for device device /printer:<device>,<driver> Activate printer redirection for printer device using driver driver /serial:<device> Activate serial port redirection for port device /parallel:<device> Activate parallel port redirection for port device /sound:sys:alsa Activate audio output redirection using device sys:alsa /microphone:sys:alsa Activate audio input redirection using device sys:alsa /multimedia:sys:alsa Activate multimedia redirection using device sys:alsa /usb:id,dev:054c:0268 Activate USB device redirection for the device identified by 054c:0268 LINKS http://www.freerdp.com/ AUTHOR The FreeRDP Team freerdp 2026-08-05 sdl2-freerdp3(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT VARIABLES | CONFIGURATION FILE | GLOBAL CONFIGURATION (client common) | GLOBAL CONFIGURATION (SDL3 client) | EXAMPLES | LINKS | AUTHOR
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