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Update entrypoint.sh #27

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Update entrypoint.sh #27

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jeroenst
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some hosts can't connect because logging is logged to stdout instead of stderr causing clients to be confused about welcome message.

rsync: server sent "2024/09/25 19:21:37 [519] name lookup failed for 172.30.30.100: Name or service not known" rather than greeting
rsync error: error starting client-server protocol (code 5) at main.c(1863) [Receiver=3.2.7]

@srstsavage
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So far I'm unable to replicate this issue. Can you provide more details, including the exact commands you're using to run both the rsync-server Docker container and your rsync client command (with any secrets or sensitive information redacted), and also the OS of the rsync client. Thank you.

@jeroenst
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jeroenst commented Sep 26, 2024 •
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Synology NAS rsync via HyperBackup fails due to this issue.

Here is the full log:

rsync --debug=connect -e 'ssh -v -p 13337' rsync://root@localhost/
OpenSSH_8.2p1 Ubuntu-4ubuntu0.11, OpenSSL 1.1.1f  31 Mar 2020
debug1: Reading configuration data /root/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to localhost [::1] port 874.
debug1: Connection established.
debug1: identity file /root/.ssh/id_rsa type 0
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa_sk type -1
debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: identity file /root/.ssh/id_ed25519_sk type -1
debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /root/.ssh/id_xmss type -1
debug1: identity file /root/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.11
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.4p1 Debian-5+deb11u3
debug1: match: OpenSSH_8.4p1 Debian-5+deb11u3 pat OpenSSH* compat 0x04000000
debug1: Authenticating to localhost:874 as 'root'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:2K8LYdaQEvmyNriR2P3KoDLRI+9jKjzJYTAllc7ROPM
debug1: Host '[localhost]:874' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:59
debug1: resetting send seqnr 3
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: resetting read seqnr 3
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /root/.ssh/id_rsa RSA SHA256:7DuyzbjSi7nY0iueOc96h98ParV9ibB1b5l6ZeVWiAk
debug1: Will attempt key: /root/.ssh/id_dsa
debug1: Will attempt key: /root/.ssh/id_ecdsa
debug1: Will attempt key: /root/.ssh/id_ecdsa_sk
debug1: Will attempt key: /root/.ssh/id_ed25519
debug1: Will attempt key: /root/.ssh/id_ed25519_sk
debug1: Will attempt key: /root/.ssh/id_xmss
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /root/.ssh/id_rsa RSA SHA256:7DuyzbjSi7nY0iueOc96h98ParV9ibB1b5l6ZeVWiAk
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Trying private key: /root/.ssh/id_ecdsa
debug1: Trying private key: /root/.ssh/id_ecdsa_sk
debug1: Trying private key: /root/.ssh/id_ed25519
debug1: Trying private key: /root/.ssh/id_ed25519_sk
debug1: Trying private key: /root/.ssh/id_xmss
debug1: Next authentication method: password
root@localhost's password:
debug1: Authentication succeeded (password).
Authenticated to localhost ([::1]:874).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug1: Sending environment.
debug1: Sending env LC_ADDRESS = nl_NL.UTF-8
debug1: Sending env LC_NAME = nl_NL.UTF-8
debug1: Sending env LC_MONETARY = nl_NL.UTF-8
debug1: Sending env LC_PAPER = nl_NL.UTF-8
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending env LC_IDENTIFICATION = nl_NL.UTF-8
debug1: Sending env LC_TELEPHONE = nl_NL.UTF-8
debug1: Sending env LC_MEASUREMENT = nl_NL.UTF-8
debug1: Sending env LC_NUMERIC = nl_NL.UTF-8
debug1: Sending command: rsync --server --daemon .
rsync: server sent "2024/09/26 10:32:58 [72] name lookup failed for 172.18.0.1: Name or service not known" rather than greeting
rsync error: error starting client-server protocol (code 5) at main.c(1680) [Receiver=3.1.3]

with log to stderr instead of stdout:

 rsync --debug=connect -e 'ssh -v -p 13337' rsync://root@localhost/
OpenSSH_8.2p1 Ubuntu-4ubuntu0.11, OpenSSL 1.1.1f  31 Mar 2020
debug1: Reading configuration data /root/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to localhost [::1] port 13337.
debug1: Connection established.
debug1: identity file /root/.ssh/id_rsa type 0
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa_sk type -1
debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: identity file /root/.ssh/id_ed25519_sk type -1
debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /root/.ssh/id_xmss type -1
debug1: identity file /root/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.11
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.4p1 Debian-5+deb11u3
debug1: match: OpenSSH_8.4p1 Debian-5+deb11u3 pat OpenSSH* compat 0x04000000
debug1: Authenticating to localhost:13337 as 'root'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:2K8LYdaQEvmyNriR2P3KoDLRI+9jKjzJYTAllc7ROPM
debug1: checking without port identifier
The authenticity of host '[localhost]:13337 ([::1]:13337)' can't be established.
ECDSA key fingerprint is SHA256:2K8LYdahemciremdiP3KoDLRI+9jKjzJYTAllc7ROPM.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '[localhost]:13337' (ECDSA) to the list of known hosts.
debug1: resetting send seqnr 3
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: resetting read seqnr 3
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /root/.ssh/id_rsa RSA SHA256:7DuyzbjSi7nY0iueOc96h98ParV9ibB1b5l6ZeVWiAk
debug1: Will attempt key: /root/.ssh/id_dsa
debug1: Will attempt key: /root/.ssh/id_ecdsa
debug1: Will attempt key: /root/.ssh/id_ecdsa_sk
debug1: Will attempt key: /root/.ssh/id_ed25519
debug1: Will attempt key: /root/.ssh/id_ed25519_sk
debug1: Will attempt key: /root/.ssh/id_xmss
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /root/.ssh/id_rsa RSA SHA256:7DuyzbjSi7nY0iueOc96h98ParV9ibB1b5l6ZeVWiAk
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Trying private key: /root/.ssh/id_ecdsa
debug1: Trying private key: /root/.ssh/id_ecdsa_sk
debug1: Trying private key: /root/.ssh/id_ed25519
debug1: Trying private key: /root/.ssh/id_ed25519_sk
debug1: Trying private key: /root/.ssh/id_xmss
debug1: Next authentication method: password
root@localhost's password:
debug1: Authentication succeeded (password).
Authenticated to localhost ([::1]:13337).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug1: Sending environment.
debug1: Sending env LC_ADDRESS = nl_NL.UTF-8
debug1: Sending env LC_NAME = nl_NL.UTF-8
debug1: Sending env LC_MONETARY = nl_NL.UTF-8
debug1: Sending env LC_PAPER = nl_NL.UTF-8
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending env LC_IDENTIFICATION = nl_NL.UTF-8
debug1: Sending env LC_TELEPHONE = nl_NL.UTF-8
debug1: Sending env LC_MEASUREMENT = nl_NL.UTF-8
debug1: Sending env LC_NUMERIC = nl_NL.UTF-8
debug1: Sending command: rsync --server --daemon .
2024/09/26 10:34:35 [551] name lookup failed for 172.18.0.1: Name or service not known
2024/09/26 10:34:35 [551] connect from UNKNOWN (172.18.0.1)
2024/09/26 10:34:35 [551] module-list request from UNKNOWN (172.18.0.1)
data            /data directory
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype [email protected] reply 0
debug1: channel 0: free: client-session, nchannels 1
debug1: fd 0 clearing O_NONBLOCK
Transferred: sent 3052, received 2900 bytes, in 0.1 seconds
Bytes per second: sent 22657.6, received 21529.1
debug1: Exit status 255
root@server:/opt/docker#

@jeroenst
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jeroenst commented Oct 4, 2024 •
edited
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Here is the docker compose section of rsync server:


  rsync-server:
    container_name: rsync-server
    image: axiom/rsync-server
    restart: unless-stopped
    ports:
      - '13337:22'
    volumes:
      - '/mnt/hd1/rsync/getpraut:/data'
      - '/opt/docker/rsyncd/ssh:/root/.ssh'
    environment:
      - 'TZ=Europe/Amsterdam'
      - 'USERNAME=root'
      - 'PASSWORD=XXXXXXXXXXXX'
      - 'ALLOW=*'
      - 'DENY=192.168.255.254/32'
    networks:
      static:
        ipv4_address: 172.18.0.6

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@jeroenst @srstsavage