bup-on(1) bup-on(1)
NAME
bup-on - run a bup server locally and client remotely
SYNOPSIS
bup on <hostname> index ...
bup on <hostname> save ...
bup on <hostname> split ...
bup on <hostname> get ...
DESCRIPTION
bup on runs the given bup command on the given host using ssh. It runs
a bup server on the local machine, so that commands like bup save on the
remote machine can back up to the local machine. (You don’t need to
provide a --remote option to bup save in order for this to work.)
See bup-index(1), bup-save(1), and so on for details of how each subcom-
mand works.
This `reverse mode' operation is useful when the machine being backed up
isn’t supposed to be able to ssh into the backup server. For example,
your backup server can be hidden behind a one-way firewall on a private
or dynamic IP address; using an ssh key, it can be authorized to ssh
into each of your important machines. After connecting to each destina-
tion machine, it initiates a backup, receiving the resulting data and
storing in its local repository.
For example, if you run several virtual private Linux machines on a re-
mote hosting provider, you could back them up to a local (much less ex-
pensive) computer in your basement.
EXAMPLES
# First index the files on the remote server
$ bup on myserver index -vux /etc
bup server: reading from stdin.
Indexing: 2465, done.
bup: merging indexes (186668/186668), done.
bup server: done
# Now save the files from the remote server to the
# local $BUP_DIR
$ bup on myserver save -n myserver-backup /etc
bup server: reading from stdin.
bup server: command: 'list-indexes'
PackIdxList: using 7 indexes.
Saving: 100.00% (241/241k, 648/648 files), done.
bup server: received 55 objects.
Indexing objects: 100% (55/55), done.
bup server: command: 'quit'
bup server: done
# Now we can look at the resulting repo on the local
# machine
$ bup ftp 'cat /myserver-backup/latest/etc/passwd'
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
...
SEE ALSO
bup-index(1), bup-save(1), bup-split(1), bup-get(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun ]8;;mailto:apenwarr@gmail.com\apenwarr@gmail.com]8;;\
Bup 0.33.7 2025-01-11 bup-on(1)
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