TL;DR: → Raspi:
ssh-keygen -t rsa -b 4096 -C "My paperless keypair"
cat id_paperl.pub
# Copy output to paperl user on TrueNas: Accounts -> Users -> Authentication -> SSH Public Key
ssh -i id_paperl paperl@192.168.178.200
# ISSUE: Still asking for the password
Issue
Hi all,
not sure if I am missing anything obviously here, but I’m trying four hours to make TrueNAS SSH accept my key-pair created on my Raspi.
- I created a key-pair
ssh-keygen -t rsa -b 4096 -C "My paperless keypair" - I added the id_paperl.pub file to the authorized by copying it in the field formfield in TrueNas: Accounts → Users → Authentication → SSH Public Key. (ssh-copy was also tried)
- I verified that the key was pasted in the ~/.ssh/authorized_keys file by logging into the server using ssh and my password, which works fine
- I try to ssh-login using the keypair on my raspi. Among others, I tried:
ssh -i id_paperl paperl@192.168.178.200
…but whatever I do, I am asked for a password. I provided several information below as attachments. If you need any further information or if you have any idea, please let me know.
=====
Attachments
Checking the permissions of the authorized_keys file
# After logging into truenas (`ssh paperl@192.168.178.200`) using my password
truenas% ls -la
...
drwx------ 2 paperl paperl 3 Oct 23 19:27 .ssh
...
truenas% cd .ssh/
truenas% ls -la
...
-rw------- 1 paperl paperl 746 Oct 23 20:20 authorized_keys
ssh -vvv
jdo@rp5:~/.ssh $ ssh -vvv -i id_paperl paperl@192.168.178.200
OpenSSH_9.2p1 Debian-2+deb12u3, OpenSSL 3.0.13 30 Jan 2024
debug1: Reading configuration data /home/jdo/.ssh/config
debug1: /home/jdo/.ssh/config line 1: Applying options for 192.168.178.200
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 *
debug2: resolve_canonicalize: hostname 192.168.178.200 is address
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/jdo/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/jdo/.ssh/known_hosts2'
debug3: ssh_connect_direct: entering
debug1: Connecting to 192.168.178.200 [192.168.178.200] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0x10
debug1: Connection established.
debug1: identity file id_paperl type 0
debug1: identity file id_paperl-cert type -1
debug1: identity file /home/jdo/.ssh/id_paperl type 0
debug1: identity file /home/jdo/.ssh/id_paperl-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u3
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.8-hpn14v15
debug1: compat_banner: match: OpenSSH_8.8-hpn14v15 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.178.200:22 as 'paperl'
debug3: record_hostkey: found key type ED25519 in file /home/jdo/.ssh/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /home/jdo/.ssh/known_hosts:2
debug3: load_hostkeys_file: loaded 2 keys from 192.168.178.200
debug1: load_hostkeys: fopen /home/jdo/.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
debug3: order_hostkeyalgs: have matching best-preference key type ssh-ed25519-cert-v01@openssh.com, using HostkeyAlgorithms verbatim
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c,kex-strict-c-v00@openssh.com
debug2: host key algorithms: ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,none
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,none
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
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
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:5ncKGqQxWJlq89F5TqmSoRXhhvVu/VMeRs61Jdk8Asc
debug3: record_hostkey: found key type ED25519 in file /home/jdo/.ssh/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /home/jdo/.ssh/known_hosts:2
debug3: load_hostkeys_file: loaded 2 keys from 192.168.178.200
debug1: load_hostkeys: fopen /home/jdo/.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 '192.168.178.200' is known and matches the ED25519 host key.
debug1: Found key in /home/jdo/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: ssh_set_newkeys: mode 1
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: ssh_set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug3: ssh_get_authentication_socket_path: path '/tmp/ssh-XXXXXXRu7TIb/agent.1023'
debug1: get_agent_identities: bound agent to hostkey
debug1: get_agent_identities: agent returned 1 keys
debug1: Will attempt key: jdo@rp5 RSA SHA256:atav9VTOZhCc09EGxI5z6K8xL4MhSOvvay3kSh1tSkM agent
debug1: Will attempt key: id_paperl RSA SHA256:H2Ug45RAmgouKYzEusiVEHLO3A5ODbFxAVLhkii8eMo explicit
debug1: Will attempt key: /home/jdo/.ssh/id_paperl RSA SHA256:H2Ug45RAmgouKYzEusiVEHLO3A5ODbFxAVLhkii8eMo explicit
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@openssh.com,webauthn-sk-ecdsa-sha2-nistp256@openssh.com>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: jdo@rp5 RSA SHA256:atav9VTOZhCc09EGxI5z6K8xL4MhSOvvay3kSh1tSkM agent
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Offering public key: id_paperl RSA SHA256:H2Ug45RAmgouKYzEusiVEHLO3A5ODbFxAVLhkii8eMo explicit
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Offering public key: /home/jdo/.ssh/id_paperl RSA SHA256:H2Ug45RAmgouKYzEusiVEHLO3A5ODbFxAVLhkii8eMo explicit
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
Screenshot from TrueNAS User
System
TrueNAS Core
TrueNAS-13.0-U6.2
Updating TrueNAS did NOT solve the issue.
I would really appreciate some help here. 