1% bup-on(1) Bup %BUP_VERSION% 2% Avery Pennarun <apenwarr@gmail.com> 3% %BUP_DATE% 4 5# NAME 6 7bup-on - run a bup server locally and client remotely 8 9# SYNOPSIS 10 11bup on \<hostname\> index ... 12 13bup on \<hostname\> save ... 14 15bup on \<hostname\> split ... 16 17bup on \<hostname\> get ... 18 19# DESCRIPTION 20 21`bup on` runs the given bup command on the given host using 22ssh. It runs a bup server on the local machine, so that 23commands like `bup save` on the remote machine can back up 24to the local machine. (You don't need to provide a 25`--remote` option to `bup save` in order for this to work.) 26 27See `bup-index`(1), `bup-save`(1), and so on for details of 28how each subcommand works. 29 30This 'reverse mode' operation is useful when the machine 31being backed up isn't supposed to be able to ssh into the 32backup server. For example, your backup server can be 33hidden behind a one-way firewall on a private or dynamic IP 34address; using an ssh key, it can be authorized to ssh into 35each of your important machines. After connecting to each 36destination machine, it initiates a backup, receiving the 37resulting data and storing in its local repository. 38 39For example, if you run several virtual private Linux 40machines on a remote hosting provider, you could back them 41up to a local (much less expensive) computer in your 42basement. 43 44 45# EXAMPLES 46 47 # First index the files on the remote server 48 49 $ bup on myserver index -vux /etc 50 bup server: reading from stdin. 51 Indexing: 2465, done. 52 bup: merging indexes (186668/186668), done. 53 bup server: done 54 55 # Now save the files from the remote server to the 56 # local $BUP_DIR 57 58 $ bup on myserver save -n myserver-backup /etc 59 bup server: reading from stdin. 60 bup server: command: 'list-indexes' 61 PackIdxList: using 7 indexes. 62 Saving: 100.00% (241/241k, 648/648 files), done. 63 bup server: received 55 objects. 64 Indexing objects: 100% (55/55), done. 65 bup server: command: 'quit' 66 bup server: done 67 68 # Now we can look at the resulting repo on the local 69 # machine 70 71 $ bup ftp 'cat /myserver-backup/latest/etc/passwd' 72 root:x:0:0:root:/root:/bin/bash 73 daemon:x:1:1:daemon:/usr/sbin:/bin/sh 74 bin:x:2:2:bin:/bin:/bin/sh 75 sys:x:3:3:sys:/dev:/bin/sh 76 sync:x:4:65534:sync:/bin:/bin/sync 77 ... 78 79# SEE ALSO 80 81`bup-index`(1), `bup-save`(1), `bup-split`(1), `bup-get`(1) 82 83# BUP 84 85Part of the `bup`(1) suite. 86