I tried too, ssh-ing works fine, scp throws error “Connection to localhost closed by remote host.”. Tried installing scp binary to no effect. I thought maybe I should restart sshd service but systemctl doesn’t seem to work: “System has not been booted with systemd as init system (PID 1). Can’t operate. Failed to connect to bus: Host is down”. Then I tried to do apt install openssh-client in the Docker image with no effect.
Here is my unsuccessful attempt:
$ fly proxy 10022:22
and in another console:
$ fly ssh issue
$ scp -v -i id_windworld -P 10022 root@localhost:/data/windworld.db ww.db
Executing: program /usr/bin/ssh host localhost, user root, command sftp
OpenSSH_9.0p1, OpenSSL 1.1.1q 5 Jul 2022
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to localhost [::1] port 10022.
debug1: connect to address ::1 port 10022: Connection refused
debug1: Connecting to localhost [127.0.0.1] port 10022.
debug1: Connection established.
debug1: identity file id_windworld type 3
debug1: identity file id_windworld-cert type 7
debug1: Local version string SSH-2.0-OpenSSH_9.0
debug1: Remote protocol version 2.0, remote software version Go
debug1: compat_banner: no match: Go
debug1: Authenticating to localhost:10022 as 'root'
debug1: load_hostkeys: fopen /home/grfork/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ssh-ed25519
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:1XGryNxflX9P4SKI8sp8/C3YPVgR79AnWzAOe98f5pY
debug1: load_hostkeys: fopen /home/grfork/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host '[localhost]:10022' is known and matches the ED25519 host key.
debug1: Found key in /home/grfork/.ssh/known_hosts:16
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: get_agent_identities: agent returned 1 keys
debug1: Will attempt key: (none) RSA SHA256:hSJsG29I25UZ6e8wbA5rpWLHPDbKWRhuH3PJNAGYxPI agent
debug1: Will attempt key: id_windworld ED25519 SHA256:ySJYo2Nop9CIATSKtlig5ew8fxICIZqQfE8g4dsTGSg explicit
debug1: Will attempt key: id_windworld ED25519-CERT SHA256:ySJYo2Nop9CIATSKtlig5ew8fxICIZqQfE8g4dsTGSg explicit
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: (none) RSA SHA256:hSJsG29I25UZ6e8wbA5rpWLHPDbKWRhuH3PJNAGYxPI agent
debug1: send_pubkey_test: no mutual signature algorithm
debug1: Offering public key: id_windworld ED25519 SHA256:ySJYo2Nop9CIATSKtlig5ew8fxICIZqQfE8g4dsTGSg explicit
debug1: Authentications that can continue: publickey
debug1: Offering public key: id_windworld ED25519-CERT SHA256:ySJYo2Nop9CIATSKtlig5ew8fxICIZqQfE8g4dsTGSgexplicit
debug1: Server accepts key: id_windworld ED25519-CERT SHA256:ySJYo2Nop9CIATSKtlig5ew8fxICIZqQfE8g4dsTGSg explicit
Authenticated to localhost ([127.0.0.1]:10022) using "publickey".
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: pledge: filesystem
debug1: Sending subsystem: sftp
debug1: channel 0: free: client-session, nchannels 1
Connection to localhost closed by remote host.
Transferred: sent 2868, received 1288 bytes, in 0.2 seconds
Bytes per second: sent 17994.5, received 8081.2
debug1: Exit status -1
scp: Connection closed