Good morning,
I am currently having a problem that I cannot find the answer to on StackOverflow or google searches, and I have not yet solved.
I am trying to use rsync as a sudo user on a target device.
The issue:
I do not own the target device, so I cannot change ssh/sudo perms.
I do not have credentials to the root user
I do have credentials to sudo user
The transaction must be completed programmatically (minimal user input)
What I've tried:
rsync -a --rsync-path "sudo rsync" USER@HOST:/root/FILE ./
Issue: "A terminal is required to read password"
ok, so let's try passing it through stdin
rsync -a --rsync-path "echo 'PASSWORD' | sudo -S rsync" USER@HOST:/root/FILE ./
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
Issue: rsync error: error in rsync protocol data stream (code 12) at io.c(226) [sender=3.1.3]
rsync: connection unexpectedly closed (4 bytes received so far) [receiver]
rsync error: error in rsync protocol data stream (code 12) at /BuildRoot/Library/Caches/com.apple.xbs/Sources/rsync/rsync-52.200.1/rsync/io.c(453) [receiver=2.6.9]
Do you guys have any other ideas about what I could be doing?
I am aware that echoing the password is not best practice, however I do not have many other options in the case that the server I am connecting to has not done a key exchange with root user and I cannot change the SUDOPASS settings.
In the end this is all getting plugged into a Python script, so if there is a better pythonic means of using rsync as a sudoer, please inform me.
If your remote sudo is configured so that once you have given the password, you do not need to give it again for a while, then you can try this:
rsync -a --rsync-path "echo 'PASSWORD' | sudo -S date >&/dev/null; sudo rsync" \
USER@HOST:/root/FILE ./
To debug what command is being run on the remote add --debug=CMD2.
If your remote does not understand the bash syntax >&/dev/null, use the longer >/dev/null 2>/dev/null.