FileZilla FTP Client

FileZilla 3 is the next generation (S)FTP-client from the FileZilla project. It is platform independent and supports operating systems like Microsoft Windows, GNU/Linux, *BSD and Mac OS X. Features Easy to use Supports FTP, FTP over SSL/TLS (FTPS) and SSH File Transfer Protocol (SFTP) Cross-platform. Runs on Windows, Linux, *BSD, OSX and more IPv6 support Available in many languages Supports resume and transfer of large files >4GB Powerful Site Manager and transfer queue Drag & drop support Configurable Speed limits Filename filters Directory Comparison Network configuration wizard The ability to use Notepad or any other program to edit a file online (the real action behind the scenes: downloading it to a temporary place and re-uploading it upon saving) HTTP/1.1, SOCKS5 and FTP Proxy support More information - You can follow the development in the FileZilla 3 development diary. There's also a detailed technical changelog available. - Learn how to compile FileZilla 3 under Windows (for developers) Tips & Tricks - Holding ctrl+alt+shift while starting FileZilla resets the default GUI layout.

Changelog

3.1.2 (2008-08-30)

Fixed bugs:

• Allow drive labels with more than one letter for servertype DOS
• Slight speedup of transfer queue, defer redrawing of UI elements to idle time

3.1.2-rc1 (2008-08-24)

New features:

• Add directory listing filter condition to match on containing path name
• Implement kiosk mode in which FileZilla will not write any passwords to disk. Can be enabled through fzdefaults.xml
• Add option to disable update checks to fzdefaults.xml
• Vast performance improvements if handling queues and directories with thousands of files
• Faster TLS/SSL handshake on data connections

Fixed bugs:

• Queue should no longer get mixed up if LIST command fails during recursive downloads
• Fix crash if using -s commandline argument
• Fix spurious transfer failures if multiple engines try to list the same directory
• Loading invalid filters could crash FileZilla
• User/pass authentication for SOCKS5 proxy support was not working properly
• If stopping queue processing while recursively downloading directories, files added by the recursive operation will no longer reenable queue processing
• MSW: Keep site manager wide enough so that all notebook tabs fit
• Fix crash if server does not support resuming of large files
• SFTP uploads did not fail if server ran out of diskspace
• If compiled for some 64bit systems, SFTP resumes of files larger than 2^32 did not work properly

3.1.1.1 (2008-08-11)

Fixed bugs:

• Fix crash if a connection attempt gets aborted

3.1.1 (2008-08-10)

New features:

• Save filter toggle state
• MSW: Display drive labels if available

Fixed bugs:

• Fix crash in new socket class if using active mode FTP
• Request user attention (e.g. blinking in taskbar) if an edited file changes and the program is minimized
• Don't issue mdtm command on links for the automatic timezone detection on SFTP servers
• Do not capture menu shortcut keys in file lists
• Allow directory comparison if filters are toggled off
• MSW: Sorting in site dropdown menu is now identical to sorting inside the Site Manager
• OS X: If closing the file rename edit box, refresh neighboring lines to get rid of artifacts left behind by the edit control border

3.1.1-rc1 (2008-08-04)

New features:

• If using "Ask for password" and "Interactive" logon types, a username is now optional in the Site Manager
• New iconset: OpenCrystal
• MSW: Whether icon sets should be installed or not can be seleted in the installer

Fixed bugs:

• Fix parsing of URLs containing port number in quickconnect bar
• Fix handling of local write errors if downloading files
• If closing FileZilla, the queue is now properly saved using a backup copy to prevent corruption of queue file
• Slight performance improvement if opening settings dialog, language and theme pages are now populated on demand
• Reply to server's shutdown notification on SSL/TLS secured downloads if connection still open
• After downloading files, local file count did not update
• "My Sites" in Site Manager should not be draggable
• Fix entering IPv6 addresses in Site Manager
• Directory cache was incoherent after renaming a directory
• Several fixes to new socket class
• MSW: Starting a bounding box selection (Windows calls it marquee selection) did not set focus to the file lists

3.1.0.1 (2008-07-24)

Fixed bugs:

• Do not report success on SSL/TLS transfers if server did not perform orderly SSL/TLS shutdown. Previously, an attacker could cause truncated files with FileZilla thinking the transfer was successful. All versions prior to this were affected
• Fix infinite loop in new socket class
• Fix file descriptor/handle leak in new socket class
• Fix locking error if cancelling an operation waiting for a lock held by a different engine
• MSW: In rare cases, initial read event was not triggered on transfer sockets
• Add missing icon in LonE theme

3.1.0 (2008-07-23)

New features:

• Right-clicking filter button in toolbar toggles filters

Fixed bugs:

• Fix oddities in visual formatting of IPv6 addresses
• MSW: Enable IPv6 support on SFTP connections
• Connecting using an IPv6 address did not work on SFTP
• Editing remote files did not pick up local changes if timestamp preserving was enabled

3.1.0-rc2 (2008-07-19)

New features:

• Enable SOCKS5 and HTTP/1.1 proxy support for SFTP connections

Fixed bugs:

• For sorting remote file list by owner/group
• *nix: Install FileZilla application icons according to the freedesktop.org Icon Theme Specification
• *nix: Use the system's tinyxml library if available

3.1.0-rc1 (2008-07-17)

New features:

• SOCKS5 and HTTP/1.1 proxy support
• The "Open" item in local directory listing context menu will open the system's file browser if a directory is selected
• New iconset: LonE
• 2 new file exists actions

3.1.0-beta2 (2008-07-12)

Fixed bugs:

• Filecount in statusbar no longer count upwards if deleting files
• MSW: Call WSAStartup, fixes WSANOTINITIALISED problem
• MSW: Use closesocket(fd) instead of close(fd), the latter caused uploads to hang at the end
• MSW: Fix socket hang after changing event handler. Use a better way to resend events

3.1.0-beta1 (2008-07-10)

New features:

• IPv6 support
• Add option to reopen file if trying to edit a file already being edited

Fixed bugs:

• Fix SFTP file descriptor leak on some transfer failures
• Fix crash if remote directory gets cleared between opening context menu and selecting view/edit item

3.0.11.1 (2008-07-05)

Fixed bugs:

• Show number of filtered files in status bars if directory appears empty
• Support for international domain names was accidentally commented out
• Add missing path separator in remote filename on file exists dialog
• Fix shrinking panes if using widescreen or blackboard styles
• MSW: If showing file changed notification dialog after editing a file, program could become unresponsive in some cases
• MSW: Fix visual problems with right-to-left languages introduced with the flicker corrections in 3.0.11
• MSW: Main component can no longer be unselected in the installer

3.0.11 (2008-06-15)

Fixed bugs:

• MSW: Reduce flicker if resizing main window
• Improve compatibility with Cygwin's SSH server. Use Site Manager to select server type
• Correct position of queue size in statusbar

3.0.11-rc1 (2008-06-09)

New features:

• File list status bars showing number of (selected) files and directories along with total filesize
• MSW: Installer improvements. The installer now remembers the installation options.
• The update wizard now shows a list of changes in the new version

Fixed bugs:

• Fix sorting issues of file lists
• Reduce CPU load if deleting or uploading many files
• MSW: Prefix search in file lists did not work with all characters
• OS X: SFTP didn't work if full bundle path contained spaces
• OS X: Fix odd dialog sizes

3.0.10 (2008-05-20)

Fixed bugs:

• Precompiled binaries available from filezilla-project.org now link against GnuTLS 2.2.5 due to security vulnerabilities in previous GnuTLS versions, see http://www.gnu.org/software/gnutls/security.html

3.0.10-rc2 (2008-05-15)

Fixed bugs:

• MSW: Performance improvements. Windows is inherently flawed since it does not cache directory contents.

3.0.10-rc1 (2008-05-14)

New features:

• Commandline arguments, see manpage for details
• Columns in file lists can be reordered or hidden by right-clicking the column header
• Added some useful links to help menu

Fixed bugs:

• Don't send redundant MKD commands to server if multiple transfers want to create the same directory multiple times
• Fix sizing problems with some interface layouts

3.0.9.3 (2008-05-06)

Fixed bugs:

• Fix rare race condition in IO thread leading to data loss. Was possible to lose up to 3*65536 bytes at the beginning of a download.
• *NIX: Renaming local files did not change local filelist
• OS X: Deleting non-empty local directories did not work in all cases
• MSW: Program could become unresponsive if update available dialog appears while a menu was opened
• MSW: Update wizard should use correct download location on Vista to save installation files
• Fix possible duplication of queue items on shutdown
• Cap input length of speedlimit edit controls
• Fix crash if getting disconnected while remote directory creating dialog was open
• Quickconnect bar did not handle URLs with trailing paths
• Update menu and toolbar state after clearing private data
• NIX: Filetype column was empty on some filetypes

3.0.9.2 (2008-04-18)

Fixed bugs:

• Fix rare crash if closing FileZilla
• *nix: Fix problems with drag&drop operation starting from local directory tree- Filetype display and ascii/binary detection did not work on VMS servers
• Requeue did not work properly for edited files
• Fix state of comparison button if comparison could not be started
• Fix crash if changing filters while comparison mode is active
• Fix ghost item appearing if applying filters after exiting comparison mode
• Compatibility fix with broken servers sending PWD reply with single quotation marks
• *nix: Display drop highlight in file lists

3.0.9.1 (2008-04-07)

Fixed bugs:

• Reset keyboard search prefix in file lists on directory and selection changes

3.0.9-rc1 (2008-03-31)

New features:

• Automatic resume on some types of transfer failures
• Improve main statusbar
  • Icon to display selected transfer mode on FTP connections
  • Icon to show current certificate and cipher on FTP(E)S connections
  • Icon to show key exchange and encryption algorithms on SFTP connections
• Remember last selected item in Site Manager
• Various improvements to main menu

Fixed bugs:

• New menu and toolbar state update system to reduce CPU usage and increase responsiveness
• Fix refresh problem with local directory tree
• Fix unreadable text with some color schemes
• Submit operating system version on update availability check
• Fix connection problems with some SFTP servers introduced in 3.0.8
• *nix: Fix message catalog install directory

3.0.8.1 (2008-03-17)

Fixed bugs:

• Fix infinite loop in local directory tree

3.0.8 (2008-03-13)

Fixed bugs:

• *nix: No longer follows symbolic links if deleting local directories
• Fix crash if dropping a file on a fill item in directory comparison mode
• Handle DEL key in queue and local directory tree
• Handle F2 key in local directory tree

3.0.8-rc1 (2008-03-07)

New features:

• Add interface for SFTP public key authentication
• Add option to bypass proxy settings to sitemanager and quickconnect bar
• Automatic timezone detection for SFTP listings
• Preserving file timestamp on SFTP transfers
• If using Site Manager, display site name in window title during connection

Fixed bugs:

• Tell user in message log to use interactive logon type if SFTP server sends multiple prompts
• Fix performance issue with local file listings, most noticeable if browsing network shares
• Reduce initial window size on very small display resolutions like 800x600 or below

3.0.7.1 (2008-02-19)

Fixed bugs:

• Fix connections timing out shortly after sending keep alive command
• Update remote file list if renaming files
• *nix: Fix tab key in Site Manager not working

3.0.7 (2008-02-14)

Fixed bugs:

• Timeouts were not working at all on FTP connections since 3.0.4-rc1
• OS X: Application bundle can now be renamed

3.0.7-rc1 (2008-02-10)

New features:

• Ability to select different toolbar icon sizes if theme supports it
• Local listings can be filtered by file attributes (Windows) or permissions (other)
• Option to enable timestamps in message log

Fixed bugs:

• Transfer queue pane did not remember its size correctly
• Fix infinite loop if dragging root node in Site Manager
• *nix: Fix segault if copying directory listing filters
• Keyboard navigation in file lists fixed
  • MSW: Ctrl + Space not working
  • *nix: Ctrl + A not selecting all files
• OS X: File changed notification can no longer get stuck behind main window
• Disable download in remote context menu if local directory is not writable
• Prevent opening multiple confirmation dialogs if closing FileZilla
• Speed up loading time of the more complex dialogs
• Fix cache problem if renaming files
• If preserving file timestamps, use MDTM command if downloading files where the directory listing does not have enough precision

3.0.6 (2008-01-30)

Fixed bugs:

• If deleting or renaming a directory in SFTP, invalidate current working directories
• Allow downloading of files starting with a dash using SFTP
• MSW: /S installer argument works again
• Improve queue on broken servers with a connection limit

3.0.6-rc1 (2008-01-24)

New features:

• Site Manager improvements:
  • Remember dialog size
  • Site Manager will remember which folders are expanded or collapsed
  • Sites can be moved and copied using Drag & Drop
  • F2 key can be used to rename sites in Site Manager
• Add context menu for local directory tree
• *nix: Basic man pages

Fixed bugs:

• Do not allow empty names for filters and filter sets
• custom file associations did not work if system associations were inherited
• MSW: Fix Reboot/shutdown queue completion actions

3.0.5.2 (2008-01-12)

Fixed bugs:

• Fix local tree refresh causing unwanted directory changes.
• Fix crash in path cache
• Fix update check
• Remove error message if locales aren't installed or FileZilla has not been translated into the default system language

3.0.5.1 (2008-01-11)

Fixed bugs:

• Fix crash if entering custom command

3.0.5 (2008-01-10)

Fixed bugs:

• Fix freeze if deleting remote directories
• Compatibility with HP NonStop servers
• MSW: Uninstaller did not remove defaultfilters.xml
• Improve visual feedback for some drag&drop operations
• Fix sort order in sitemanager dropdown menu
• Fix size of file changed dialog
• "Apply to current queue only" in file exists dialog did not work properly
• Cached directory listings expire after 30 minutes

3.0.5-rc1 (2007-12-31)

New features:

• Directory listing comparison
• Ability to open and edit local files
• Add option to use default system language. Note: Language selection will be reset to default if updating to this version.
• New artwork for send and recv indicators

Fixed bugs:

• Fix crash with keepalive timer
• *nix: Use proper locale initialization, happened too late in FZ's startup sequence in previous versions.
• Fix issue with proxies in combination with nonstandard ports
• Fix timezone offset detection if user has specified a custom offset
• MSW: Cancel remote renaming of files if listing changes
• Fix prefix search in file listings not working with all keys
• Internal engine state could get confused on failed transfers
• Fix visual refresh problem in queue
• Fix several glitches with right-to-left languages
• Write errors during downloads are now critical, as they usually require user interaction (e.g. disk full)
• Calculate proper filesize on VMS servers
• Remote directory tree did not display all known directories
• Don't display error messages if some local directories are not accessible during auto-completion in local view header or if if they are parent of an accessible directory in the local tree view.

FileZilla 3.0.4 (2007-11-26)

Fixed bugs:

• Linux: Fix empty challenge text if using interactive login

FileZilla 3.0.4-rc1 (2007-11-20)

New features:

• Implement FTP Proxy support. Note that using a properly configured NAT router is recommended instead.
• Implement FTP keep alive for those connecting to improperly configured servers

Fixed bugs:

• Fix crashes if deleting files in directories with more than 200 entries
• Compatility improvements with VMS and z/VM servers
• Now requires GnuTLS 2.0.4 which fixes a problem with servers using compression.
• Changing list of ascii files or increasing number of concurrent transfers had no effect until restart of FileZilla

FileZilla 3.0.3 (2007-11-06)

New features:

• Install some default filters if filters.xml missing in user's settings directory

Fixed bugs:

• OS X: Fix remote file viewing/editing
• Additional fixes for SFTP servers with nonstandard filename encodings

FileZilla 3.0.3-rc1 (2007-10-31)

New features:

• Automatic server timezone detection. Custom offset in the Site Manager may need to be adjusted. FTP only.
• Option to preserve file timestamps on downloads (all protocols)
• Option to preserve file timestamps on uploads on FTP servers supporting the MFMT command
• Add transfer type (ascii/binary/auto) selection to transfer menu

Fixed bugs:

• Shorten very long filenames on file exists dialog
• Attempt at working around broken routers and firewalls disconnecting the control connection of the transfer session on transfers
• Deleting directories containing lots of files should be faster now
• Disallow settings/site import from files located in the settings storage directory
• Fix nullpointer dereference on non-UTF8 enabled SFTP servers
• *nix: Fix button height inconsistencies on dialogs with certain artwork (e.g. Ubuntu 7.10)

FileZilla 3.0.2.1 (2007-10-17)

Fixed bugs:

• Fix issue with message log not working properly

FileZilla 3.0.2 (2007-10-17)

New features:

• MSW: Added /user=all and /user=current options to installer
• Experimental support for z/VM servers

Fixed bugs:

• Fix typo in option handling code. Due to this, settings for date/time formatting have been reset.
• Fix performance problem if FileZilla gets started with message log hidden
• Work around possible race conditions in SFTP input thread leading to crashes
• MSW: Fix issue with installer where reboot after uninstalling previous version disrupted installation. Fix will only work if uninstalling 3.0.2 or greater.
• OSX: Use new icon

FileZilla 3.0.2-rc1 (2007-10-10)

New features:

• Remote file viewing / editing
• Display current server in window title

Fixed bugs:

• Don't remember incorrect password on SFTP connections with ASK logontype
• MSW: Fix drag&drop to explorer in case of case-mismatch between requested and reported path.
• *nix: Fix Makefiles so SFTP properly supports files > 2GB
• Ascii filetype setting for extensionless files and dotfiles had negated effect
• Fix error message if using multiple running instances save the settings at the same time
• Fix parsing of very new files in directory listings if server is in a timezone ahead of the client
• Fix range of timezone offset setting
• Fix problems with remote path combobox if reconnecting after a disconnect
• Display confirmation dialog if deleting file from remote directory tree context menu
• Refresh remote directory listing after refreshing a single file
• On very first startup, center FileZilla on screen

FileZilla 3.0.1 (2007-09-19)

Fixed bugs:

• Fix parsing of settings or site XML data containing double, leading or trailing whitespace.
• MSW: Work around flaw in the combo box implementation used by the view headers

FileZilla 3.0.1-rc1 (2007-09-15)

New features:

• Settings to configure size, date and time formatting
• Message log and queue visibility will be remembered
• Custom action to perform after queue completion
• Add some confirmation dialogs

Fixed bugs:

• MSW: Fix file truncation if using speed limits
• MSW: Fix slow startup on systems with floppy drives, disconnected network drivers and so on triggered by design flaw in Windows.
• Fix misplaced settings dialog
• Fix problems with remembering pane size
• Properly refresh local directory if downloading into newly created subdirectories
• Fix issues with language set to Japanese

FileZilla 3.0.0 (2007-09-08)

New features:

• New application icon

Fixed bugs:

• Fix support for servers sending directory listing in yet another exotic format
• Fix prefix search in list controls on wxGTK
• Work around problem with wxSpinCtrl in site manager on wxGTK
• Fix assertion on wxGTK if listing extensionless files

FileZilla 3.0.0-rc3 (2007-08-31)

Fixed vulnerabilities:

• Fix buffer overflow if directory lisiting filters were enabled, causing FileZilla to crash.

New features:

• Backspace key can be used to goes to parent directory in file lists

Fixed bugs:

• Fix file selection by entering filename prefix
• Restore correct window size if FileZilla gets closed while minimized
• Disable "Create directory" entry in remote filelist context menu while disconnected
• Improve compatibility with SFTP servers using exotic listing formats
• MSW: Fix locales not working
• *nix: Fix queue scrolling

FileZilla 3.0.0-rc2 (2007-08-26)

New features:

• Remember Window size and position
• Remember sort column and order of file lists
• Additional icon set by Brian Lukis
• Added .desktop file on *nix systems
• If server is crippled and doesn't allow more than one connection (based on Sitemanager preference), primary browsing connection can be used by the transfer queue

Fixed bugs:

• Fix SSL transfers hanging if using speed limits
• Compile fixes and compatibility improvements for various platforms
• The usual assortment of small bugfixes, see changelog for details

FileZilla 3.0.0-rc1 (2007-08-11)

Fixed vulnerabilities:

• Fix remotely triggered memory corruption if connection gets terminated during TLS handshake.

New features:

• Windows: Add choice between "All Users" and "Current User" to installer
• Windows: Add Desktop and My Documents links to directory tree
• Windows: Ability to list shares on Network computers
• Column widths in all list views will be saved
• Refresh local file list after a successful file transfer
• Add context menu to remote directory tree
• Make Site Manager resizable

Fixed bugs:

• Don't leave empty files behind on failed downloads
• Fix retry and cache logic if transfer command fails with 5yz reply
• Limit number of simultaneous connections did not work properly
• Refresh listing after chmod
• Fix upload of empty files over TLS connections

FileZilla 3.0.0-beta11 (2007-07-20)

New features:

• Improved queue
• Import and export dialogs including import of Sitemanager data from legacy FZ 2.x
• Tab key can be used to switch between panes
• F6 toggles between quickconnect bar and local/remote path edit fields
• Location of settings directory can be specified in fzdefaults.xml

Fixed bugs:

• Engine state could get mixed up if transfers failed
• Transfer of empty files could incorrectly time out
• Fix directory cache coherency if removing/renaming directories
• Work around lack of thread-safety in wxWidgets causing random misbehaviour
• Properly disconnect idle transfer engines after 30 seconds
• Update selections if changing sort order of file lists
• Various minor fixes

FileZilla 3.0.0-beta10 (2007-06-03)

Fixed bugs:

• Fix bug that made Beta 9 unusable

FileZilla 3.0.0-beta9 (2007-06-01)

New features:

• Add "View hidden files" option to server menu
• Add dialog to clear private data
• Performance improvements of message log
• Avoid sending unnecessary TYPE commands

Fixed bugs:

• Updated TinyXML component, fixes problems with filenames containing ampersands or other special XML entities.
• Fix deadlock in sftp component under Windows
• Don't retry connecting if user cancels new/changed hostkey notification

FileZilla 3.0.0-beta8 (2007-05-09)

Fixed vulnerabilities:

• Fix data corruption on FTPS uploads

New features:

• Implement speed limits
• Last used local directory will be remembered
• New option for the sorting of the filelists. Directories can be kept on top or sorted inline
• Display warning if detecting a Windows system with a networking bug confirmed by Microsoft
• Right-clicking the Sitemanager button in the toolbar displays a popup menu with the sites for quick access. On Windows, a dropdown arrow got added

Fixed bugs:

• Directorylisting-parser fixes, including support for Microware OS-9
• Small SFTP transfer speed improvement under Windows
• Autocompletion did not work properly on GTK based systems
• Uninstalling FileZilla on Windows should no longer leave registry keys behind
• lots of small bugfixes

FileZilla 3.0.0-beta7 (2007-03-27)

New features:

• New optionspage to change layout of file and directory panes
• Loading of predefined Sitemanager entries from fzdefaults.xml
• UTF-8 support for SFTP, merged in upstream changes from PuTTY

Fixed bugs:

• Ascii file FTP transfers should now work properly on non-Windows systems
• Fix SFTP transfers of filenames containing the following characters: [ ] \ * ?
• lots of small bugfixes and performance improvements

FileZilla 3.0.0-beta6 (2007-02-19)

New features:

• Vastly improved drag and drop support, including
• Shell extension under Windows to allow dragging of files from FileZilla into Explorer
• CTRL+A will select all files in currently focused file list
• Display warning if trying to connect to SFTP server using FTP protocol

Fixed bugs:

• Fix timing issue in socket event handling, fixes transfers not starting on some systems
• Cosmetic fixes under non-Windows platforms.

FileZilla 3.0.0-beta5 (2007-01-11)

Fixed vulnerabilities:

• Fix format string vulnerabilities

New features:

• Partial drag and drop support

Fixed bugs:

• Lots of small bugfixes

FileZilla 3.0.0-beta4 (2006-12-14)

Fixed bugs:

• Fix bug that made Beta 3 unusable

FileZilla 3.0.0-beta3 (2006-12-13)

Fixed bugs:

• FTP over TLS/SSL support
• Major performance improvements
• Automatic connection attempt retries
• Improved compatibility with legacy systems and other exotic servers
• Lots of small bugfixes

FileZilla 3.0.0-beta2 (2006-10-15)

Fixed bugs:

• Fix timeouts
• "Update available" notification did not go away after updating
• Upload progress for SFTP transfers did advance too fast
• Filters did not apply properly
• UNC paths can now be browsed locally
• Directory listings can now be sorted by timestamp and permissions

FileZilla 3.0.0-beta1 (2006-10-05)

The main purpose of the first beta was public testing. Please report any bugs you find, but do not post feature requests.

What's new/improved since v2:

• Cross-platform (new)
• Directory listing filter (new)
• Automatic updates (new)
• Multi-language support (improved)
• Right-to-Left languages support (new)
• Firewall support w/ wizard (improved)

And of course, as always:

• FTP and SFTP support
• Site Manager with folders and definable server timezones offsets
• Upload/Download Queue
• Ability to resume Uploads/Downloads (if the server supports it)
• ASCII/Binary files' support (not for SFTP though!)
• Custom Commands
• Timeout detection