Remote backup failing on ssh #243
Replies: 2 comments
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the ssh key that is used for [email protected] seems to have a password set but no ssh-agent is running to get the password from what looks strange to me is the:
that class is not part of the project itself, i wonder where it comes from? Also: you can try the verbose option "-v" to show the paramiko output and get more information what ssh key is used |
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Ah the I do not use passwords on ssh keys, i do not use ssh-agent and the Thanks for the help, ill mess with the dns some other time, local backups are sufficient for now. myuser in nixos-desktop-01 in /tmp/tmp.LOFlzaYces
❯ virtnbdbackup --nbd-ip 10.10.50.94 -v -U qemu+ssh://[email protected]/system --ssh-user root -d win7-02 -o /tmp/tmp.gfTYuVn0fk/win7-02
[2025-01-10 20:33:49] INFO lib common - printVersion [main]: Version: 2.18 Arguments: /nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin/virtnbdbackup --nbd-ip 10.10.50.94 -v -U qemu+ssh://[email protected]/system --ssh-user root -d win7-02 -o /tmp/tmp.gfTYuVn0fk/win7-02
[2025-01-10 20:33:49] INFO root .virtnbdbackup-wrapped - main [main]: Backup level: [copy]
[2025-01-10 20:33:49] DEBUG output target - create [main]: Create: /tmp/tmp.gfTYuVn0fk/win7-02/checkpoints
[2025-01-10 20:33:49] DEBUG virt client - _connect [main]: Libvirt URI: [qemu+ssh://[email protected]/system]
[2025-01-10 20:33:49] INFO virt client - _connect [main]: Connected to remote host: [nixos-desktop-02.myuserrah.com]
[2025-01-10 20:33:49] INFO root .virtnbdbackup-wrapped - main [main]: Libvirt library version: [10010000]
[2025-01-10 20:33:49] INFO root .virtnbdbackup-wrapped - main [main]: NBD library version: [1.20.2]
[2025-01-10 20:33:49] DEBUG virt client - getDomainDisks [main]: Disk [sda]: file notation
[2025-01-10 20:33:49] DEBUG virt client - getDomainDisks [main]: Device list: [DomainDisk(target='sda', format='qcow2', filename='win7-02.qcow2', path='/var/lib/libvirt/images/win7-02.qcow2', backingstores=[])]
[2025-01-10 20:33:49] DEBUG virt client - getDomainInfo [main]: No setting [loader] found: 'NoneType' object has no attribute 'text'
[2025-01-10 20:33:49] DEBUG virt client - getDomainInfo [main]: No setting [nvram] found: 'NoneType' object has no attribute 'text'
[2025-01-10 20:33:49] DEBUG virt client - getDomainInfo [main]: No setting [kernel] found: 'NoneType' object has no attribute 'text'
[2025-01-10 20:33:49] DEBUG virt client - getDomainInfo [main]: No setting [initrd] found: 'NoneType' object has no attribute 'text'
[2025-01-10 20:33:49] DEBUG virt client - getDomainInfo [main]: Domain Info: [{}]
[2025-01-10 20:33:49] INFO root .virtnbdbackup-wrapped - main [main]: Backup will save [1] attached disks.
[2025-01-10 20:33:49] INFO root .virtnbdbackup-wrapped - main [main]: Concurrent backup processes: [1]
[2025-01-10 20:33:49] INFO root checkpoint - create [main]: Loading checkpoints from: [/tmp/tmp.gfTYuVn0fk/win7-02/win7-02.cpt]
[2025-01-10 20:33:49] INFO root checkpoint - redefine [main]: Loading checkpoint list from: [/tmp/tmp.gfTYuVn0fk/win7-02/checkpoints]
[2025-01-10 20:33:49] INFO root checkpoint - create [main]: Checkpoint handling.
[2025-01-10 20:33:49] DEBUG root checkpoint - create [main]: Checkpoint info: [{'name': 'virtnbdbackup.0', 'parent': '', 'file': '/tmp/tmp.gfTYuVn0fk/win7-02/win7-02.cpt'}].
[2025-01-10 20:33:49] INFO ssh client - connect [main]: Connecting remote system [nixos-desktop-02.myuserrah.com] via ssh, username: [root]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: starting thread (client mode): 0x8c7eca70
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Local version/idstring: SSH-2.0-paramiko_3.5.0
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Remote version/idstring: SSH-2.0-OpenSSH_9.9
[2025-01-10 20:33:49] INFO paramiko.transport transport - _log [Thread-1]: Connected (version 2.0, client OpenSSH_9.9)
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: === Key exchange possibilities ===
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: kex algos: [email protected], curve25519-sha256, [email protected], diffie-hellman-group-exchange-sha256, ext-info-s, [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: server key: rsa-sha2-512, rsa-sha2-256, ssh-ed25519
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: client encrypt: [email protected], [email protected], [email protected], aes256-ctr, aes192-ctr, aes128-ctr
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: server encrypt: [email protected], [email protected], [email protected], aes256-ctr, aes192-ctr, aes128-ctr
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: client mac: [email protected], [email protected], [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: server mac: [email protected], [email protected], [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: client compress: none, [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: server compress: none, [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: client lang: <none>
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: server lang: <none>
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: kex follows: False
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: === Key exchange agreements ===
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Strict kex mode: True
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Kex: [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: HostKey: ssh-ed25519
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Cipher: aes128-ctr
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: MAC: [email protected]
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Compression: none
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: === End of kex handshake ===
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Resetting outbound seqno after NEWKEYS due to strict mode
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: kex engine KexCurve25519 specified hash_algo <built-in function openssl_sha256>
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Switch to new keys ...
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Resetting inbound seqno after NEWKEYS due to strict mode
[2025-01-10 20:33:49] DEBUG paramiko.transport transport - _log [Thread-1]: Got EXT_INFO: {'server-sig-algs': b'ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],rsa-sha2-512,rsa-sha2-256', '[email protected]': b'0', '[email protected]': b'0'}
[2025-01-10 20:33:49] WARNING lib common - sshSession [main]: Failed to setup SSH connection: [Host key for server 'nixos-desktop-02.myuserrah.com' does not match: got 'AAAAC3NzaC1lZDI1NTE5AAAAIB/fJG0Bm8aaGd8EENFz5z/gqEZt9bSfwe4nVIAbgc7e', expected 'AAAAC3NzaC1lZDI1NTE5AAAAIA06JlibpVlnwQYPs3zFVfXnmfile1XmPT+nsPgtgmrb']
[2025-01-10 20:33:49] ERROR root .virtnbdbackup-wrapped - main [main]: Remote backup detected but ssh session setup failed
# COMMENT: the 'AAAAC3N....gc7e' is the ssh pub key of my public server, not the 10.10.50.94 device.
myuser in nixos-desktop-01 in /tmp/tmp.LOFlzaYces
❯ realpath $(which virtnbdbackup)
/nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin/virtnbdbackup
myuser in nixos-desktop-01 in /tmp/tmp.LOFlzaYces
❯ tree -L 3 /nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18
dr-xr-xr-x - root root 1 jan 1970 /nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18
dr-xr-xr-x - root root 1 jan 1970 ├── bin
.r-xr-xr-x 18k root root 1 jan 1970 │ ├── .virtnbdbackup-wrapped
.r-xr-xr-x 9,4k root root 1 jan 1970 │ ├── .virtnbdmap-wrapped
.r-xr-xr-x 11k root root 1 jan 1970 │ ├── .virtnbdrestore-wrapped
.r-xr-xr-x 4,8k root root 1 jan 1970 │ ├── virtnbd-nbdkit-plugin
.r-xr-xr-x 1,2k root root 1 jan 1970 │ ├── virtnbdbackup
.r-xr-xr-x 1,2k root root 1 jan 1970 │ ├── virtnbdmap
.r-xr-xr-x 1,2k root root 1 jan 1970 │ └── virtnbdrestore
dr-xr-xr-x - root root 1 jan 1970 ├── lib
dr-xr-xr-x - root root 1 jan 1970 │ └── python3.12
dr-xr-xr-x - root root 1 jan 1970 │ └── site-packages
dr-xr-xr-x - root root 1 jan 1970 └── nix-support
.r--r--r-- 612 root root 1 jan 1970 └── propagated-build-inputs
myuser in nixos-desktop-01 in /tmp/tmp.LOFlzaYces
❯ cat /nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin/virtnbdbackup
#! /nix/store/5mh7kaj2fyv8mk4sfq1brwxgc02884wi-bash-5.2p37/bin/bash -e
PATH=${PATH:+':'$PATH':'}
PATH=${PATH/':''/nix/store/hid1iv9yjq4xqi3gnb7pfa1gsrajm25g-libnbd-1.20.2/bin'':'/':'}
PATH='/nix/store/hid1iv9yjq4xqi3gnb7pfa1gsrajm25g-libnbd-1.20.2/bin'$PATH
PATH=${PATH#':'}
PATH=${PATH%':'}
export PATH
PATH=${PATH:+':'$PATH':'}
PATH=${PATH/':''/nix/store/8nfid9v93yqq6m3m564mzfxsya74sf90-python3.12-tqdm-4.66.5/bin'':'/':'}
PATH='/nix/store/8nfid9v93yqq6m3m564mzfxsya74sf90-python3.12-tqdm-4.66.5/bin'$PATH
PATH=${PATH#':'}
PATH=${PATH%':'}
export PATH
PATH=${PATH:+':'$PATH':'}
PATH=${PATH/':''/nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin'':'/':'}
PATH='/nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin'$PATH
PATH=${PATH#':'}
PATH=${PATH%':'}
export PATH
PATH=${PATH:+':'$PATH':'}
PATH=${PATH/':''/nix/store/c9m6yd8fg1flz2j5r4bif1ib5j20a0cy-python3-3.12.8/bin'':'/':'}
PATH='/nix/store/c9m6yd8fg1flz2j5r4bif1ib5j20a0cy-python3-3.12.8/bin'$PATH
PATH=${PATH#':'}
PATH=${PATH%':'}
export PATH
export PYTHONNOUSERSITE='true'
exec -a "$0" "/nix/store/j3ml2xbg6kv8fimf0mp281c6qgis92j8-virtnbdbackup-2.18/bin/.virtnbdbackup-wrapped" "$@" |
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Hi, i love your project i have been using it for local backups however when i try remote it fails. This is what i did:
/etc/hostspointing to local ip because initially it was resolving the ip of my public cloud vps machine--nbd-ipjust in caseThe backup command still fails. Do i need to do anything more?
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