![]() One of the nice things about rsync is that for trivial cases, the syntax is the same as for scp.Im currently testing the new 'Rsync' Backup Transport in version 74.0.2. ![]() This entry was posted in Tips and tagged auth, rsync, ssh, sudo by dg12158. password and destination folder by using cli commands, destination port is 23 (not 22) and everything works via cli. Yes, you could enable remote root login, but it would definitely be preferable to avoid that. Hooray, this works! Bit of a faff but it could be scripted or made into a shell function to save having to remember it □ The connection was refused because you were using a non-standard rsync port, see the comments by user roaima. # rsync -av -e 'ssh -X' -rsync-path='SUDO_ASKPASS=/usr/libexec/openssh/ssh-askpass sudo -A rsync' /some/local/path password: Again sudo won’t have a tty to ask for the password on, so how about we use an X11 askpass program and enable X forwarding for ssh: Grsync is also available in AUR, so you can install it on a Arch Linux based systems using a AUR helper tool such as Paru or Yay like below: paru -S grsync. To install Grsync in Arch Linux and its variants such as EndeavourOS, Manjaro Linux, run: sudo pacman -S grsync. We’ll use /usr/libexec/openssh/ssh-askpass as that should pick an appropriate version according to what is available to sudo. Grsync is packaged for popular Linux operating systems. We can find this with locate askpass on the remote locate askpass Fortunately there is a -A option for sudo which tells it to use an “askpass” program, but we also need to tell it what askpass program to use (and it’s not in the default path on most machines). ![]() So we need to tell sudo to ask for the password some other way. # rsync -av -e 'ssh -t' -rsync-path='sudo rsync' /some/local/path will not be allocated because stdin is not a password: It’s built into nearly every Linux system by default which allows users to perform rsync over ssh communication/backup. Adding the -t option to the ssh used by rsync doesn’t work either, as it can’t allocate a tty: rsync stands for remote sync and is a powerful command line utility for synchronizing directories either on a local system or with remote machines. Oh, that didn’t work - sudo couldn’t ask us for a password. 2 Navigate to network share (which in my case is on Ubuntu Bionic Desktop PC) 3 Left click to open shared network folder for browsing. Rsync error: error in rsync protocol data stream (code 12) at io.c(632) Rsync: connection unexpectedly closed (0 bytes received so far) Sudo: no tty present and no askpass program specified # rsync -av -e 'ssh' -rsync-path='sudo rsync' /some/local/path password: Rsync is widely used as an alternative to cp command to backup and copy files from one location another. # rsync -av -e 'ssh' /some/local/path works fine and prompts for the ssh password to log into the remote machine if required.īut what if the remote end needs root (or a different user) rights to write into the destination directory? Just whack in an -rsync-path option to add sudo to the rsync command, right?: Here is the list of most commonly used Rsync commands with examples for beginners as well as intermediate users. Using rsync normally is nice and straightforward.
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