UrBackup - Client changelog (2023)


  • Linux binary client: Install systemd service to /usr/lib/systemd/system if /lib/systemd/system doesn’t exist
  • Fix path creation when SNAP_MOUNTPOINT is root in dattobd snapshot removal script
  • Add authorization header when connecting to websocket and username/password is specified in URL
  • Fix UTF-8 decoding of paths and their names in the backup path selection screen. This was causing issues with unicode characters in paths
  • Fix translation initialization on Windows


  • Fix preventing sleep on Windows 11 during backup
  • Switch to using client settings if there are no directories to backup from server in backup paths configuration screen
  • Synchronize settings reading code with backend code to correctly read client settings in UI
  • Fix saving changed settings if not set to use setting
  • Ignore empty internet_server_url when displaying setting
  • Set default use value to group setting on client
  • Save settings source if only that changed in backup paths configuration screen
  • Fix path creation when SNAP_MOUNTPOINT is root in dattobd snapshot script
  • Always store backup paths to config file even if it doesn’t exist yet
  • Fix dm-setup script and dmsnaptool uninstall
  • Allow setting of backup paths and components if allowed to
  • Initiate Internet settings update after saving

2.5.22 (Linux only)

  • Fix Linux installation issue where it chooses the wrong architecture (e.g. on arm64)
  • Disable dm udev fallback in dm-snapshot binary


  • Don’t install on Windows <= 8
  • Fix saving Windows VSS backup components
  • Use NSIS 3 for creating Windows .exe installer
  • Fix disabling local encryption/compression
  • Create linux dm-snapshots via separate c++-program to prevent Linux from freezing up (use mlockall() there)
  • Linux DM-Snapshot: Always remove device nodes before removing overlay files to prevent cases where snapshot storage file is deleted without removing device nodes first
  • Linux DM-Snapshot: Ignore device delete failures


  • Show all paths to backup in GUI even if they are not configured on client
  • Show error message if saving paths to backup fails


New feature highlights:

  • New settings handling allowing per setting switching of if the setting should be sourced from the client, the client specific configuration on the server, the settings group or the global settings
  • Client can now connect via websocket to server
  • Client can now do image backups of Linux volumes
  • Local connection between server and client can now be encrypted


  • Fix ipv6 accept issue in filesrv that caused 100% CPU usage
  • Add post backup script call on file backup failure
  • Build with Visual Studio 2019 with updated dependencies


  • Add ELLCC build for Linux/ARMv6 again
  • Fix log fetching for newer postgres version
  • Disable using SSE3 in x86 Linux client builds

2.4.9 (Linux only)


  • Fix OpenSSL configure warning
  • Disable using sse4 in linux build using Android NDK for x86/amd64 making the Linux binary client work on older CPUs without SSE4 instruction supports
  • Option to compile with embedded ZSTD
  • Linux binary client is now build with ZSTD support
  • Handle error returned from listen()


Major changes:

  • IPv6 support (sponsored by Tuxis Internet Engineering )
  • ZSTD transport compression
  • HTTPS proxy support
  • Parallel hashing improvements
  • Image backup performance improvement: Read-ahead file system in larger blocks

Changes from 2.4.7:

  • Fix parallel hashing hang if interrupted
  • Fix CbtUpdate/RestartFilesrv confusion causing internal file server restarts
  • Fix reading tokens on Windows allowing restores via command line on Windows
  • Fix race condition removing image backup status structure
  • Don’t try to connect via http proxy if not compiled with SSL
  • Fix compilation with older glibc
  • Fix piped tar file hash issue after resume
  • Use different shell path for Android build (uses /system/bin/sh per default)
  • Improve install info about using android build

For more details see the change logs for beta versions 2.4.0-2.4.6 in the testing category in the forums.


Changes from 2.2.x:

  • Set e flag on Linux in popen to open the pipe with O_CLOEXEC
  • Set FSCTL_ALLOW_EXTENDED_DASD_IO on volume handle to be able to read last sector
  • Clarify keep option in command line client
  • Don’t use RequestUserAttention on Linux because it segfaults
  • Fix permission translation for Linux and macOS
  • Retry llistxattr with a multiple of the required memory if it fails
  • Cooperate CBT with multiple running clients
  • Don’t show restore components option if components never have been backed up
  • Fix change indicator of open files such that the symbolic link detection works for them
  • Read USNs of symbolic links and directories on Windows instead of last modified time to detect directory metadata changes
  • Fix file permission translation on Linux/MacOS
  • Fix Crypto++ 6.0 byte compile issue
  • Handle reparse tag IO_REPARSE_TAG_APPEXECLINK on Windows
  • Backup VeraCrypt boot loader
  • Improve log message if indexing is interrupted



  • Increase common metadata size limit
  • Fix tar file streaming large file size parsing
  • Add additional tar file streaming logging
  • Allow root to access/restore invalid symlinks
  • Fix EPERM handling when getting extended attributes fails on macOS
  • Log group/user name if mapping to token id fails on Linux
  • Add crypto++ CPPFLAGS and LDFLAGS to build
  • Enable assertions switch during configure
  • Do not crash if group name of group cannot be found on Linux



  • Set correct working directory when apply default settings if update is run silently. This was causing the client settings to be reset on update with previous 2.2.x clients
  • Increase timeout for saving settings in setup wizard
  • Correctly open symlinks for setting metadata on macos
  • Get tokens only if metadata contains tids
  • Always exclude /run on Linux
  • Fix common snapshot script (posix compatibility)


Major changes:

  • Client-side file hashing parallel with file backup

Changes since 2.2.3:

  • Fix memory access bug with file symlink to file symlink outside of all backed up paths
  • Check hash pos in piped tar file
  • Change image backup read alignment if necessary
  • Atomic settings reset/changing
  • Ability to exclude mount points from snapshot script on Linux
  • Calculate changed bytes in separate sweep. Make bitmap size difference non-fatal
  • Reengage cbt driver after error
  • Use Crypto++ to calculate MD5/SHA in release mode
  • Handle different sector size for vss volume
  • Run installer script by calling sh on Linux
  • Copy executables and then run them in Linux installer script
  • Fix piped tar file not sending directories in some cases (affected mysql backup with xtrabackup)
  • If snapshot dir is “none” use no snapshot and log no error
  • Configure virtual mariadb incr client correctly in mariadb/mysql setup script
  • Fixing corrupted file backup on macOS with APFS: Disable sparse file support on macOS

For more details see the change logs for beta versions 2.2.0-2.2.3 in the testing category in the forums

(Video) Full PC Image Backup with Raspberry pi / UrBackup



  • Fix piped tar file not sending directories in some cases (affected mysql backup with xtrabackup)
  • Linux: If snapshot dir is “none” use no snapshot and log no error
  • Configure virtual mariadb incr client correctly
  • Fixing corrupted file backup on macOS with APFS: Disable sparse file support on macOS



  • Fix symlink check on Windows. Was misrepresenting all reparse points as symbolic links. Caused problems with newer Windows 10 versions



  • Remove init script links on Linux client uninstall
  • Disable assertions in release build
  • Prevent client downgrades
  • Disallow direct use of internal share names
  • Fix postgresbase config script
  • Limit number of DC users/groups
  • Skip SYSVOL candidates where GetVolumeInformation fails
  • Fix include_dirs functionality on Linux & Mac
  • Fix token creation for groups on Windows


Major changes:

  • Ability to reconnect during indexing if connection is broken
  • Improved image backup performance
  • Windows Backup API support
  • Define which volumes need to be snapshotted together (snapshot groups)



  • Fix timeout issue with connection encryption
  • Fix sysconf path in client scripts
  • Do not remove shadow copies for image backup after client restart if there are multiple concurrent jobs
  • Read computer name from default setting as fallback
  • Set internet client to not connected if no internet servers are configured
  • Output more detailed error information in sysvol_test
  • Prevent uninitialized device type on error in SYSVOL search
  • Use proper param string escape function to fix e.g. adding paths with ‘+’ in them
  • Fix issue with single file backup being a symbolic link
  • Fix default includes when selecting the second option (backup only documents, pictures, …) in wizard
  • Fix enable_internet_only.bat on Windows



  • Update snapshot start time when resuming image backup (prevents snapshot timeout)
  • Allow symbolic link exclusions
  • Interpret time_since_last_lan_connection as int64 in GUI and command line clients to prevent integer overflow and resulting parse error



  • Create directories only if not already present and fix directory permission bits in Linux client installer
  • Fixed full sparse file transfer resume with Windows client
  • Fixed full sparse file transfer with non-sparse extents longer than 4GB
  • Fix: Use cache for user account tokens



  • Keep last client access key to prevent race between old and new key
  • Fixed memory leak after restore
  • Trim Windows command line args from args.txt
  • Persist backup dir flags through saves via command line client
  • Added Finnish translation (by Jussi Bergström)
  • Remove image backups from command line client on non-Windows systems
  • Correctly read tokens on macOS in command line client
  • Prevent tray icon from starting more than once per user on all OS
  • Added C:\Windows.old to default excludes
  • Fix enable_internet_only.bat (try #2)



  • Changed/added a few log messages
  • Fix symlink directory restore on Linux/Mac
  • Fixed memory leaks
  • Use default name when adding directory and no name is given in urbackupclientctl
  • Skip setup wizard on silent install
  • Fix internet_only batch file



  • Fix double free with stdout streams
  • Group and virtual client name as postfilebackup script paramters
  • Leave other shadow copies alone only if another simultaneous backup is running (only works in connection with server 2.0.31)
  • Fix unicode problem in backup path configuration


Major changes:

  • New Mac OS X client
  • Much improved command line interface incl. backup browsing
  • File meta-data backup, such as last modified time, permissions, extended attributes
  • Sparse file support
  • File backup restore via client
  • Direct backup access from Explorer context menu or client tray icon
  • GPT partition backup and EFI System Partition (ESP) detection and backup
  • Security improvements in Internet protocol (Uses AES-GCM+ECDH now)
  • Improved Linux client file system snapshot support
  • Proper symbolic link handling during file backups
  • Virtual clients



(Video) Help Desk Project urbackup

  • Fixed Swedish translation attribution
  • Fixed file handle double free in chunked file transfer



  • Silently ignore all broken symbolic links on Linux
  • Collect new file entries in-memory instead of in temporary file (could improve performance)
  • Added Swedish (thanks goes to Adam Karlsson, IorX) and Portuguese translation (thanks goes to J. Almeida)


  • Properly break file transfer on timeout
  • Disable restart on new interfaces, because that could cause problems and was not neccessary anymore
  • Determine system reserved volume on startup and then do not determine it again to prevent timeouts
  • Read shadow copy device with write share mode to fix conflicts with other software accessing the device
  • Fixed Norwegian, Estonian and Turkish translation
  • Correctly handle $ in paths only for Linux

Fixes a bug with 64bit inodes (relevant if you use XFS with “inode64”)


  • New server side advanced setting to not run the client with background priority
  • New server side advanced setting to not follow symlinks on Linux clients
  • Added Estonian and Turkish translation
  • Read ahead in separate thread to increase image backup performance



  • Fixed persistent open files leak fix (pull request #2)
  • Fixed backup of file shares
  • Fixed crash bug with backup path sanitization



  • Try to restart udp listening on error
  • Properly close open_write_files.dat when restarting watch thread
  • Correctly handle hard links to currently open files



  • Correctly detect changes in root directories (such as C:) on Windows. This bug was introduced with “Correctly backup root directory on Linux” with the last client version. If you configured a client to do file backups of e.g. “C:" you are affected and should upgrade.



  • Correctly backup root directory on Linux
  • Always look at file if basic info was changed
  • Correctly check the values in image_letters for correctness (volume can be opened)
  • Cache ntfs info correctly if it cannot be read from device (e.g. because of timeout). Fixes client connection error when querying capabilities


Critical bugfixes:

  • Fixed potential file change detection issue which occurred if the indexing process was interrupted (e.g. via system shutdown). Caused changed files to not be loaded to the server during incremental file backups.
  • Persist open files information to disk to load them again on service restart. Caused changed, currently open files to not be loaded to the server during incremental file backups, if the client service is restarted.


  • Cache ntfs property of volumes for capability command in case drives react slowly. Added new enumeration of all non-usb ntfs formatted volumes.
  • Enable end-to-end verification only for the next backup
  • Keep file modification times if no file in directory changed (this would cause unnecessary file backups during incremental file backups)
  • For ReFS: Switch to different indexing mode if FSCTL_ENUM_USN_DATA is not supported. Also added USNv3 support (not seen in the wild yet, though)
  • Do not crash if blocks of a file which could not be opened are requested
  • Fixed error handling in change journal watcher
  • Fixed log rotation



  • Improved error handling while watching for file changes. In case of errors it falls back to MFT queries and if that fails it marks the volume as failed. This fixes a bug which caused UrBackup to not backup changes in some error situations.
  • Added log rotation on Windows
  • Better logging if temporary file cannot be created, and create temporary directory if it was created


  • Added Czech translation (thanks goes to Ales Hermann). Updated other translations and translation attribution.



(Video) UR Backup? - Live 12.11.2020

  • If image letters is ALL, only backup NTFS formatted volumes
  • Correctly hash files which were not hashed previously (e.g. because the client was connected locally)



  • Fixed tray icon not installing with installers downloaded from server
  • Quit executable when window is closed
  • Correctly transfer error message, if the error occurs on the first file transmitted


No changes

1.4 RC3

  • Don’t log token authentication failures as error log messages
  • Added new “internetonly” client parameter
  • Changed writer error loglevel to warning
  • Use the hostname if it is identical to the FQDN except for casing

1.4 RC2

Fixed client update mechanism.

1.4 RC1


  • Fixed bug where the status screen was crashing
  • Put temporary files into a folder and delete it on startup
  • Properly close handles to files on timeouts
  • Don’t get stuck if receiving hash data for incremental image fails
  • Fixed bug where one of the hashes in the “block differences - hashed” transfer mode was calculated incorrectly. This caused unnecessary file blocks to be transferred during incremental file backups. Using Server 1.4RC1 with previous clients and vise versa causes even more unnecessary data to be transferred. This bug does, however, not affect file correctness.

1.4 beta 3

Fixed bug in shadow copy deletion of own/old shadow copies.

1.4 beta 2


  • Added explanation of writer failures and consequences in the VSS log messages and lowered logging-level to warning.
  • Fixed crash when removing old/own shadow copies
  • Proper initialization of temporary file prefix on Windows

1.4 beta 1

Major changes:

  • New Status screen which shows the current connection status, progress, an ETA, and current servers
  • Client side hash performance improvements
  • Server public key authentication additionally to the server identity
  • Use fully qualified domain names as default computer names in new installs


  • Don’t delete file entries if include/exclude pattern changed, but do not use db during indexing
  • Execute postindex hook directly after indexing
  • Update start time of shadow copy while imaging, so that it does not time out on really long image backups (more than one week)
  • Filter useless error messages in connection with change journal entries
  • Remove need of newline at end of server_idents.txt file
  • Don’t require change journal close for change entry to be written. Increase entry cache time.
  • Be more conservative about which files changed
  • Added Linux version querying. Made windows version querying more maintainable.
  • Setting value (“ALL”) to backup all attached volumes
  • Return error if a directory to backup is or becomes inaccessible. Added flag to mark directories as optional
  • Show that backups are resumed
  • Increased buffer size for hashing
  • More icon states (you can change the icon color if you want)
  • Secured client log and server identities (permissions)
  • Internet client timeouts sooner if backup is running
  • Show “Indexing” instead of “0% done” during indexing on the client.
  • Only allow administrators to change paths and settings
  • Added more change journal indexing logging


  • Don’t lower case path in database on Linux
  • Fixed bugs in connection with multiple simultaneous backups with multiple servers
  • Fixed issue with multiple last_backup_time keys



  • Added Farsi translation (thanks goes to the osiengine group)
  • Lukasz Milata updated the polish translation


  • Use 2003 x64 dll for XP 64bit
  • Fixed Linux client to actually build and install
  • Fixed crash bug when shadow copy writer fails with non-retryable error



(Video) Client/Server Imaging tutorial for IT support

  • Log information about VSS creation and indexing
  • Added Danish as translation (thanks goes to tnywos)
  • Added Ukrainian as translation (thanks goes to Ihor Maydanovich)
  • Added Polish as translation (thanks goes to drpt)
  • Added Portuguese – Brazil as translation (thanks goes to Artur Corumba)
  • Added Italian as translation (thanks goes to paolobeldi)
  • Added Slovak as translation (thanks goes to janda)
  • Added dutch translation (thanks goes to buzzertnl)


  • Inform writers when creating Volume Shadow Copies on Windows
  • Correctly handle failed VSS writers (including retrying on retryable errors)
  • Retry snapshot operation if writer failed and has the retryable error
  • Trim identities when loading them from identity file
  • Scan for changed hard links on Windows
  • Always lookup the urbackup\ directory on the filesystem because changes there are ignored in the change journal watcher
  • Automatically add pagefile.sys and hiberfil.sys to the exclude list
  • Fixed problem with gettext (percentage character %)



  • Added spanish translation. Thanks go to Luis-Miguel Munoz.
  • Added simplified and traditional chinese translation. Thanks go to Zhengyu Ren.
  • Fixed bug where system restore volume was not imaged.
  • Fixed bug where not all buffers where freed during file backup.
  • Save changed folders lower cased on Windows.
  • Fixed “Setting TCP_NODELAY failed” error message.



  • Fixed bug, where changes of root directory paths were not indexed correctly. This bug would have affected you, if you do incremental file backups of whole volumes (e.g. C:). In this case changed or new files are missing in the incremental file backups!



  • Better log messages if paths cannot be listed e.g. because the user running UrBackup does not have permission to access the folder
  • Reduced priority of some UrBackup threads in Windows XP
  • Optimized image backup sending
  • Proper restarting if a network interface change is detected
  • More effcient Change Journal watching
  • Correctly fail backups if there are disk problems
  • Reindex filesystem if exclude or include pattern has changed
  • Correctly parse include/excludes with forward slashes on Windows
  • Correctly handle backup paths with ‘ in them


New features:

  • Optional silent updating of clients
  • Detect new backup servers and ask the user to accept them
  • New hashed transfer mode for files and images
  • New Internet mode which allows backups of clients over the Internet


  • Reorganized settings into tabs
  • Fixed some memory leaks
  • Follow symlinks in backups paths
  • Backup files correctly that have no change in last modification time
  • Do not log errors on the client if SYSVOL is missing



  • Stopped client from displaying random values in image settings if image backups are disabled
  • Added russian translation and switched to unicode installer
  • Stopped client from timing out if image backups are paused


New features:

  • File inclusion patterns
  • Changed notification style on Windows


  • Correctly use default file exclusion pattern
  • Handle dynamic volumes
  • Fixed crash caused by uncommon file names
  • Changed pause behavior to not time out during image backups



  • Fixed GUI crash if client was not allowed to do image backups
  • Fixed bug where whole drives could not be added as a backup path
  • Fixed file exclusion



  • Allow unicode backup names
  • Fixed image size bug


New features:

(Video) amanda backup and take (2 Solutions!!)

  • Linux client without imaging capability
  • MSI installer for the client for 64bit systems
  • Starting backups is now only possible if a server is present and that server allows it
  • Settings which you cannot change are hidden now
  • Prevent system to go to sleep during a backup (Windows)
  • Image backups of multiple volumes (Windows)


  • Only submit paths to the backend when a change occured
  • Startup delay is now really in minutes
  • Set default interval for incremental images value to correct text box
  • Timeout running image backups so that a new one can be started manually
  • Save less journal data
  • Do not save empty computernames
  • Made exclude pattern case insensitive on Windows
  • Allow reopening a file after timeout and do not timeout during pause
  • Fixed crash that occurred if a created shadow copy could not be deleted (e.g. hard disk unplugged)
  • Persist image on timeout
  • Correctly delete shadow copies for images with aborted backups


New features:

  • Create and restore the ‘System Reserved’ partition (Win7 + Server 2008) as well
  • Added cleanup time window
  • Allow setting the client name
  • New setting to exclude files via wildcards
  • Allow unicode share names


  • Rewrite of shadow copy reference counting - token counting is now used
  • Fixed shadow copy replacement mechanism when backup was interrupted


  • Changed image block size to make images compatible with the Windows 7 VHD mounting feature


  • Optimized Change Journal Watcher and fixed bug where the real directory is accessed instead of the shadow copy (in rare cases)
  • Use backup semantics to backup files the backup server normally does not have the right to access
  • Fixed wrong replay order, wrong start USN after reindex and forced writing lastUSN after reindex
  • Fixed several deadlocks if one changes the directories to be backed up while indexing is in progress
  • Added pre filebackup hook
  • If the windows change journal does not work the client will rescan the backup directories now


  • Repaired internationalization
  • Deleted directories on the clients get deleted in the client caches as well
  • Fixed racing condition while starting backups on watched directories


  • Repaired autoupdate


  • More efficient incremental image backups
  • Small bugfixes


  • Bugfixes
  • Autoupdate


  • 64bit version for Windows Server 2003
  • Bugfix for incremental number of image backups
  • File system changes now via windows change journal
  • MBR will be saved with the image backups
  • Compiled with VC++ 2010


  • 64bit version
  • Small bug with image backups removed


  • Pause button to pause backups
  • Bugfixes
  • Info screen for version information


What is UrBackup used for? ›

Consistent backups while in use.

UrBackup backups your computer while you use it. Open files, like Outlook . pst files, get backed up without problems. The image backups are done while the system is running and in use as well.

How do I access UrBackup server? ›

Navigate to http://localhost:55414 in your web browser to open the UrBackup Server web UI.

How do I delete all UrBackup backups? ›

Under Settings: File Backups, check both Interval for full and incremental backups Disabled boxes and set each maximum and minimum number of file backups to 0. The next cleanup pass will delete all file backups from matching Clients automatically.

How do I stop UrBackup server? ›

Under windows services are controlled as an administrator via “Computer Management”->“Services and Aplications”->“Services” and find the UrBackup Server Service (I assume, I don't run the Windows Server version) and select the stop action then the start action or the restart action.

What is the difference between raw and hashed in URBackup? ›

Transfer the data as 'raw' as possible. This is the fastest transfer mode and uses the least amount of CPU cycles on server and client. hashed. Protects the transferred data from bit errors by hashing the data during the transfer.

How does Hyperbackup work? ›

Hyper Backup allows you to back up various kinds of data (system configurations, shared folders, and applications/packages) on your Synology NAS, manually or by schedule. You can store the backup data in local shared folders, remote servers, and public clouds.

What ports are used by UrBackup? ›

The UrBackup Server uses ports 55413 and 55414 to communicate with Clients on the LAN. Port 55415 is used with Internet mode which is disabled by default.

What format is UrBackup image backup? ›

The image backups are saved as VHD-files or compressed VHD-files. Those are standardized (by Microsoft) virtual disk container formats.

What is restic backup? ›

Restic is a modern backup program that can back up your files: from Linux, BSD, Mac and Windows. to many different storage types, including self-hosted and online services. easily, being a single executable that you can run without a server or complex setup.

What happens if I delete all my backup? ›

It will erase the data you previously backed up to iCloud.

So, in case you need to set up your iPhone from scratch, you will not be able to recover data from iCloud.

Can I delete old backup sets? ›

You can delete old iCloud backups for the device you're currently using, or older devices you might not use anymore. iCloud backups are available for 180 days after you disable or stop using iCloud Backup. Backups that are currently being used to restore a device can't be deleted.

Do I delete old backups? ›

A good backup retention policy is a key to cloud storage as well, as using a large amount of space could generate a huge bill. Since space correlates with the cost, removing old or irrelevant backups is necessary to save costs.

How do I stop all servers from running? ›

To stop all Application Servers on the host, do one of the following:
  1. (Windows) Do one of the following: From the command line window where the Application Server is running, enter Ctrl-C . From the Windows Start menu, select Settings > Control Panel. ...
  2. (UNIX) Enter the following: /etc/init.d/blappserv stop.
Aug 19, 2022

How do I free up space on my server? ›

5 Ways to Save Space on a Windows Server
  1. Delete Outdated Backups.
  2. Optimize SQL Databases.
  3. Clean Up IIS Log Files.
  4. Uninstall Third-Party Software.
  5. Add More Server Disk Space.
Jan 26, 2023

How do I restore UrBackup to Hyper V? ›

How to restore: Select “Restore components” on the tray icon and choose the time and VMs to restore, then restore. You can also run cd "C:\Program Files\UrBackup" then UrBackupClientGUI.exe restoreWindowsComponents in a command window to get this restore screen.

What is the most safest hash algorithm? ›

SHA-256 is considered by many experts to be the most secure hashing algorithm. The NIST recommends the use of this algorithm due to its high level of security. Many governments use the SHA-256 algorithm, including those of the United States and Australia.

What is the strongest hash algorithm? ›

What's the Most Secure Hashing Algorithm? SHA-256. SHA-256 (secure hash algorithm) is an algorithm that takes an input of any length and uses it to create a 256-bit fixed-length hash value.

What is the difference between incremental and full Urbackup? ›

The only difference is that during a full backup the full set of data is transferred. If for some reason, files have not been selected for transfer during an incremental backup, the full backup will make sure, that the server really has the current state of the client.

What is the best backup strategy for Synology NAS? ›

To protect your data on Synology NAS in case of an IT disaster, we suggest that you follow the 3-2-1 backup strategy (3 copies; 2 storage mediums; 1 offsite).

Is Synology Drive Client backup incremental? ›

Synology Hyper Backup uses incremental backup to save your storage space. That is to say, after an initial full backup, only added or changed data will be backed up.

What is the LUN in Hyperbackup? ›

Hyper Backup allows you to perform LUN (Logical Unit Number) backup to a local or remote Synology NAS. For more information on creating an iSCSI LUN and its functionality, please refer to this article or the help article of SAN Manager.

What port does failover cluster use? ›

3343 (This port is required during a node join operation.) Additionally, for successful validation on Windows Failover Clusters on 2008 and above, allow inbound and outbound traffic for ICMP4, ICMP6, and port 445/TCP for SMB.

What runs on port 25? ›

These days, port 25 is mainly used for SMTP Relaying – transmitting messages between different email servers. It's not recommended to use for email submission unless you specifically manage your own mail server.

What are ethereal ports? ›

An ephemeral port is a temporary communication hub used for Internet Protocol (IP) communications. It is created from a set range of port numbers by the IP software and used as an end client's port assignment in direct communication with a well-known port used by a server. Advertisements.

What is the full backup of URBackup? ›

The full and incremental backups in urbackup refer to the files scanned on the client. All backups contain all files but the de-duplication results in only a single copy of a file which then appears in each backup using file system features.

What is the difference between image backup and full backup? ›

A file backup creates a backup of files and folders, or even complete drives with the included files. A image backup, however, copies an entire partition and thus all the bits and bytes that reside on a hard drive partition. An image backup is performed more quickly when backing up a complete partition.

What is the minimum number of incremental file backups in URBackup? ›

Run incremental file backups at least every 24h (set incremental file backup interval to at least 24h). Then set Minimal number of incremental file backups to at least 7.

What is deja dup? ›

Déjà Dup is a simple backup tool. It hides the complexity of backing up the Right Way (encrypted, off-site, and regular) and uses duplicity as the backend. Support for local, remote, or cloud backup locations such as Google Drive. Securely encrypts and compresses your data.

What is Borgmatic? ›

borgmatic is simple, configuration-driven backup software for servers and workstations. Protect your files with client-side encryption.

What is Google+ auto backup? ›

Google+ Auto-Backup: When you installed Picasa you were probably given the option to turn on Google+ Auto-Backup. If you did that then every picture on your computer is being backed up to your Google+ Photos account in a folder called Auto Backup.

Does Time Machine overwrite old backups? ›

Your first Time Machine backup includes everything on your Mac. After that, Time Machine finds and saves only new and changed items, so the backups become smaller. Also, as your backup disk fills up, Time Machine deletes older backups to make room for new ones.

What is an obsolete backup set? ›

A status of "obsolete" means the backup piece is still available, but it is no longer needed.

How do I clean up old backups? ›

Method 1: Delete Old Backup Files Using File History Cleanup
  1. Step 1: Open Control Panel. ...
  2. Step 2: Go to System and Security. ...
  3. Step 3: Open File History. ...
  4. Step 4: Open Advanced Settings. ...
  5. Step 5: Open Clean up versions. ...
  6. Step 6: Delete older versions of files and folders.

How many full backups should I keep? ›

It dictates keeping three copies of your data: two stored locally (on two different types of devices) and one stored off-site. This diversified backup strategy covers all the bases; it's easy to access backups stored on-site, while off-site (and often offline or immutable) backups provide security through redundancy.

How many database backups should you keep? ›

How many backup copies should I keep? According to the 3-2-1 backup rule, you should keep at least two backup copies to protect your data against natural disasters, accidental deletions, hardware failure and cyberattacks.

Does Windows 10 backup delete old backups? ›

By default, Windows 10 File History will save all versions forever, so eventually, your Windows 10 backup disk will full. You can easily change that setting to automatically delete old versions.

What is the usage of Wbadmin? ›

Wbadmin is an elevated command prompt that allows administrators or backup operators to backup and restore an operating system (OS), volume, file, folder or application.

What does EaseUS system backup do? ›

EaseUS Todo Backup is an excellent Windows backup image software, it offers full backups, incremental backups, and differential backups. Users can choose the backup type according to their own demands. Users may also schedule a backup plan for their Windows system for daily, weekly, monthly, or yearly backups.

What is server backup? ›

A backup server is a software or hardware system that copies or “shadows” the contents of a server, providing redundancy.

What time is the UrBackup backup? ›

Mon-Fri/8:00-9:00, 19:30-20:30;Sat,Sun/0-24 : On weekdays backup between 8 and 9 and between 19:30 and 20:30. On Saturday and Sunday the whole time. As one can see a number can denote a day of the week (1-Monday, 2-Thuesday, 3-Wednesday, 4-Thursday, 5-Friday, 6-Saturday, 7-Sunday).

What is Windows backup service called? ›

Windows Server Backup (WSB) is a feature that provides backup and recovery options for Windows server environments. Administrators can use Windows Server Backup to back up a full server, the system state, selected storage volumes or specific files or folders, as long as the data volume is less than 2 terabytes.

Where are the wbAdmin files stored? ›

By default, the backup will be saved at: \\<servername>\<sharename>\WindowsImageBackup\<ComputerBackedUp>\ . Specifies the comma-delimited list of items to include in the backup. You can include multiple files, folders, or volumes.

What is the purpose of backup command in DOS? ›

The backup command creates copies of your files on a backup medium, such as a magnetic tape or diskette. The copies are in one of the two backup formats: Specific files backed up by name using the -i flag.

How much data can be recovered from EaseUS? ›

Conclusion. EaseUS free data recovery software allows users to recover 2GB of lost data for free.

Does EaseUS recover all data? ›

EaseUS best free data recovery software restore deleted files in all file types from all storage media on Windows PC and laptop. It supports storage devices from all well-known manufacturers, including Microsoft, Lenovo, HP, Dell, Western Digital, Seagate, Toshiba, Samsung, and so on.

Can EaseUS recover deleted files from phone? ›

EaseUS MobiSaver is a user-friendly and easy-to-use Android data recovery tool that can help you recover deleted or lost contacts, text messages, photos, WhatsApp, music, videos, and more from Android phones.

What are the three types of backups? ›

There are mainly three types of backup: full, differential, and incremental. Let's dive in to know more about the types of backup, the difference between them and which one would be the best fit for your business.

What is the best way to backup a server? ›

Best Practices for Server Backup, Data Backup, and Hyper-V Backup
  1. Keep enough disk space free at all times: At the source as well as the target.
  2. Buy 4x the storage space you need.
  3. Eliminate single point of failure: Use multiple storage devices and use backup rotation.
  4. Use internal, external, and offsite storage.

What is the most recommended backup media for servers? ›

Flash drives and SSDs are the most efficient physical way to backup your system.

What ports does URBackup use? ›

The UrBackup Server uses ports 55413 and 55414 to communicate with Clients on the LAN.

What is the best backup schedule? ›

Typically, incremental backups of user files can be performed during the day-time. It's, however, advisable to set maximum speed caps for your backups. With that, your backup software won't max out the bandwidth. Run daily full backups at night, weekly during weekdays.

How long should a system backup take? ›

Speeds are slower than download speeds, a quick calculation will probably show that your backup would still complete in a reasonable amount of time if size and speed were the only impacting factors. At 5Mbps, for example, 100GB should take about 48 hours to backup. A terabyte backup would take less than three weeks.


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