I am running the following in a script:
pubkey=$(gpg2 --verbose --export-ssh-key $EXPORT_THIS_ID)
sshpass -p$REMOTE_PASS ssh -o IdentitiesOnly=yes -o StrictHostKeyChecking=no -tt -p $REMOTE_PORT root#$REMOTE_MACHINE 'bash -s' < ./adopt-machine.sh "\"$pubkey\""
as a child process in node.js with stdout and stderr piped over http (no tty, hence the -tt option for the ssh command) and am receiving the following error:
Received disconnect from 172.18.0.4 port 2222:2: Too many authentication failures
Disconnected from 172.18.0.4 port 2222
I've read that this error is a result of the agent attempt to connect using keys one at a time which is why I would think the error is related to tty(incorrect handling of password). Help?
EDIT: I no longer require piping stdout over http but am having the same issue. It may be unrelated to tty.
Using the ssh command without -tt as follows:
result=$(sshpass -p$REMOTE_PASS ssh -vvv -o IdentitiesOnly=yes -o StrictHostKeyChecking=no -p $REMOTE_PORT root#$REMOTE_MACHINE 'bash -s' < /usr/raindrop/app/gpg/adopt-machine "\"$pubkey\"" 2>&1)
results in the following output:
OpenSSH_8.8p1, OpenSSL 1.1.1n 15 Mar 2022
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/root/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/root/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug2: resolving "sandbox" port 2222
debug3: resolve_host: lookup sandbox:2222
debug3: ssh_connect_direct: entering
debug1: Connecting to sandbox [172.18.0.2] port 2222.
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug1: Connection established.
debug1: identity file /root/.ssh/id_rsa type -1
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_8.8
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.8
debug1: compat_banner: match: OpenSSH_8.8 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to sandbox:2222 as 'root'
debug3: put_host_port: [sandbox]:2222
debug1: load_hostkeys: fopen /root/.ssh/known_hosts: No such file or directory
debug1: load_hostkeys: fopen /root/.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: no algorithms matched; accept original
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: 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
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
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
debug2: compression stoc: none,zlib#openssh.com
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:OtNG6kv5Aog+3ngJbi9PG6sLyOx2Oqjo8nGqqmCV9s4
debug3: put_host_port: [172.18.0.2]:2222
debug3: put_host_port: [sandbox]:2222
debug1: load_hostkeys: fopen /root/.ssh/known_hosts: No such file or directory
debug1: load_hostkeys: fopen /root/.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: checking without port identifier
debug1: load_hostkeys: fopen /root/.ssh/known_hosts: No such file or directory
debug1: load_hostkeys: fopen /root/.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
Warning: Permanently added '[sandbox]:2222' (ED25519) to the list of known hosts.
debug1: check_host_key: hostkey not known or explicitly trusted: disabling UpdateHostkeys
debug3: send packet: type 21
debug2: 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: set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /root/.ssh/id_rsa
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
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,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred 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: Trying private key: /root/.ssh/id_rsa
debug3: no such identity: /root/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_dsa
debug3: no such identity: /root/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ecdsa
debug3: no such identity: /root/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ecdsa_sk
debug3: no such identity: /root/.ssh/id_ecdsa_sk: No such file or directory
debug1: Trying private key: /root/.ssh/id_ed25519
debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /root/.ssh/id_ed25519_sk
debug3: no such identity: /root/.ssh/id_ed25519_sk: No such file or directory
debug1: Trying private key: /root/.ssh/id_xmss
debug3: no such identity: /root/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: userauth_kbdint: disable: no info_req_seen
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred:
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
Permission denied, please try again.
Similarly to what I theorized, ssh is attempting to use non existent keys in the .ssh directory.
I have resolved my issue and it had nothing to do with my code. Using sshpass -v I got this message:
SSHPASS: detected prompt, again. Wrong password. Terminating.
Wrong password...
Following this page I successfully configured Cygwin sshd in a Windows 10 computer running as a member of a Windows(Samba) domain.
I can ssh to that machine from a Windows 10 inside the domain and from a Windows 10 outside the domain. I am running the ssh command in Cygwin in both cases.
But, I can't connect from a Linux Debian 10 machine outside the domain, I can't connect from the Linux Debian 10 running the Samba DC, I can't connect from a Mac outside the domain.
Any ideas?
I use always the same command to start the connection ssh nicola#domus, the same in each OS. I attach the last part of what I see in the attempt to connect via Linux.
$> ssh -vvv nicola#domus
...
debug3: hostkeys_foreach: reading file "/home/p/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/p/.ssh/known_hosts:76
debug3: load_hostkeys: loaded 1 keys from 172.16.3.53
debug1: Host 'domus' is known and matches the ECDSA host key.
debug1: Found key in /home/p/.ssh/known_hosts:75
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: Will attempt key: /home/p/.ssh/id_rsa RSA SHA256:hcDASnV1vvd88xpKM/xN2XtUSCvcW3oPUz0izqFMTBE
debug1: Will attempt key: /home/p/.ssh/id_dsa
debug1: Will attempt key: /home/p/.ssh/id_ecdsa
debug1: Will attempt key: /home/p/.ssh/id_ed25519
debug1: Will attempt key: /home/p/.ssh/id_xmss
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,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred gssapi-keyex,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: /home/p/.ssh/id_rsa RSA SHA256:hcDASnV1vvd88xpKM/xN2XtUSCvcW3oPUz0izqFMTBE
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
Connection closed by 172.16.3.53 port 22
I found just after posting that I can actually connect via Linux and Mac if I force password authentication.
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no nicola#domus
But, I consider this more a quick fix than a solution. Do you have any better ideas?
I'm trying to establish a connection with some servers from my Ubuntu 20.04 cp. I use both Kerberos and ssh protocols to connect my computer; however, I received from ssh the following:"Permission denied (gssapi-keyex,gssapi-with-mic)". Kerberos seems to work properly since I have successfully received tickets from it. I looked for similar questions before but no one have helped me so far.
If relevant during the installation process i create a file called "config" where i paste some line of code required for ssh. My procedure was the following 1) cd .ssh 2)touch config 3)sudo nano config (where i copy and paste the lines) 4) and then restart ssh and sshd services.
Any help would be awesome and thanks for your time guys!:)
here is a part of the prompt after type ssh -vvv -Y...
debug1: Reading configuration data /home/zulu0499/.ssh/config
debug1: /home/zulu0499/.ssh/config line 1: Applying options for *.fnal.gov
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: resolving "emphaticgpvm01.fnal.gov" port 22
debug2: ssh_connect_direct
debug1: Connecting to emphaticgpvm01.fnal.gov [131.225.240.241] port 22.
debug1: Connection established.
...
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=<rsa-sha2-256,rsa-sha2-512>
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: gssapi-keyex,gssapi-with-mic
debug3: start over, passed a different list gssapi-keyex,gssapi-with-mic
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug3: send packet: type 50
debug2: we sent a gssapi-with-mic packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: gssapi-keyex,gssapi-with-mic
debug3: send packet: type 50
debug2: we sent a gssapi-with-mic packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: gssapi-keyex,gssapi-with-mic
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
ydeniz#emphaticgpvm01.fnal.gov: Permission denied (gssapi-keyex,gssapi-with-mic)```
Have been trying to setup the seamless ssh login across couple of servers but running into issues as after copying the public key the ssh to the host still asks for the password. Here is what I did
[root#app6 .ssh]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
/root/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
e9:e9:b4:e5:50:7b:9b:f6:3f:d5:65:52:39:9c:ba:38 root#app6
The key's randomart image is:
+--[ RSA 2048]----+
| . o|
| =.|
| ...|
| . .. o|
| S . . .oo|
| . o E . o|
| = o o .|
| o = ..o . |
| o ..o...o|
+-----------------+
And then copied the id to the host
[root#app6 .ssh]# ssh-copy-id app3
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
\S
Kernel \r on an \m
Password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh 'app3'"
and check to make sure that only the key(s) you wanted were added.
But when I try to login then it does not work (asks for password) –
[root#app6 .ssh]# ssh 'app3'
\S
Kernel \r on an \m
Password:
I should not be seeing the 'Password:' prompt. Apparently something is amiss.
Here is the version of ssh that is running:
[root#app6 ~]# ssh -V
OpenSSH_6.6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
Adding the output of ssh -vvv app3 below:
debug3: load_hostkeys: loading entries for host "172.27.36.104" from file "/root/.ssh/known_hosts"
debug3: load_hostkeys: found key type ECDSA in file /root/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys
debug1: Host '172.27.36.104' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:5
debug1: ssh_ecdsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /root/.ssh/id_rsa (0x7f471042f250),
debug2: key: /root/.ssh/id_dsa ((nil)),
debug2: key: /root/.ssh/id_ecdsa (0x7f4710433730),
debug2: key: /root/.ssh/id_ed25519 ((nil)),
debug3: input_userauth_banner
\S
Kernel \r on an \m
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-keyex
debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-keyex
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug2: we did not send a packet, disable method
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug1: Unspecified GSS failure. Minor code may provide more information
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /root/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug1: Trying private key: /root/.ssh/id_dsa
debug3: no such identity: /root/.ssh/id_dsa: No such file or directory
debug1: Offering ECDSA public key: /root/.ssh/id_ecdsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug1: Trying private key: /root/.ssh/id_ed25519
debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
Check the following
The directory app3:~/.ssh has permissions 0700
The file app3:~/.ssh/authorized_keys has permissions 0600
The key app6:~/.ssh/id_rsa.pub exists in app3:~/.ssh/authorized_keys
Check sshd config file
PermitRootLogin yes
RSAAuthentication yes
PubkeyAuthentication yes
If all the above is correct, then run ssh -vvv app3 to see a very verbose connection info. It should provide feedback on why the password-less login fails.
comment for #yk11 's answer:
4.check the sshd config file
PermitRootLogin yes
RSAAuthentication yes
PubkeyAuthentication yes
open these config and restart sshd process.
I'm installing phabricator for code review.
I followed the Diffusion hosting repository guide and I can add new hosted repository.
But when I test the connection:
echo {} | ssh -p 22 phassh#localhost conduit conduit.ping
I got:
Permission denied (publickey,keyboard-interactive).
I used the debug mode of ssh
sudo /usr/sbin/sshd -d -d -d -f /etc/ssh/sshd_config.phabricator
the log is:
debug2: load_server_config: filename /etc/ssh/sshd_config.phabricator
debug2: load_server_config: done config len = 321
debug2: parse_server_config: config /etc/ssh/sshd_config.phabricator len 321
debug3: /etc/ssh/sshd_config.phabricator:6 setting AuthorizedKeysCommand /usr/phassh/phabricator-ssh-hook.sh
debug3: /etc/ssh/sshd_config.phabricator:7 setting AuthorizedKeysCommandUser phassh
debug3: /etc/ssh/sshd_config.phabricator:8 setting AllowUsers phassh
debug3: /etc/ssh/sshd_config.phabricator:13 setting Port 22
debug3: /etc/ssh/sshd_config.phabricator:14 setting Protocol 2
debug3: /etc/ssh/sshd_config.phabricator:15 setting PermitRootLogin no
debug3: /etc/ssh/sshd_config.phabricator:16 setting AllowAgentForwarding no
debug3: /etc/ssh/sshd_config.phabricator:17 setting AllowTcpForwarding no
debug3: /etc/ssh/sshd_config.phabricator:18 setting PrintMotd no
debug3: /etc/ssh/sshd_config.phabricator:19 setting PrintLastLog no
debug3: /etc/ssh/sshd_config.phabricator:20 setting PasswordAuthentication no
debug3: /etc/ssh/sshd_config.phabricator:21 setting AuthorizedKeysFile none
debug3: /etc/ssh/sshd_config.phabricator:23 setting PidFile /var/run/sshd-phabricator.pid
debug1: sshd version OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug3: Incorrect RSA1 identifier
debug1: key_parse_private2: missing begin marker
debug1: read PEM private key done: type RSA
debug3: Incorrect RSA1 identifier
debug3: Could not load "/etc/ssh/ssh_host_rsa_key" as a RSA1 public key
debug1: private host key: #0 type 1 RSA
debug3: Incorrect RSA1 identifier
debug1: key_parse_private2: missing begin marker
debug1: read PEM private key done: type DSA
debug3: Incorrect RSA1 identifier
debug3: Could not load "/etc/ssh/ssh_host_dsa_key" as a RSA1 public key
debug1: private host key: #1 type 2 DSA
debug3: Incorrect RSA1 identifier
debug1: key_parse_private2: missing begin marker
debug1: read PEM private key done: type ECDSA
debug3: Incorrect RSA1 identifier
debug3: Could not load "/etc/ssh/ssh_host_ecdsa_key" as a RSA1 public key
debug1: private host key: #2 type 3 ECDSA
debug3: Incorrect RSA1 identifier
debug3: Incorrect RSA1 identifier
debug3: Could not load "/etc/ssh/ssh_host_ed25519_key" as a RSA1 public key
debug1: private host key: #3 type 4 ED25519
debug1: rexec_argv[0]='/usr/sbin/sshd'
debug1: rexec_argv[1]='-d'
debug1: rexec_argv[2]='-d'
debug1: rexec_argv[3]='-d'
debug1: rexec_argv[4]='-f'
debug1: rexec_argv[5]='/etc/ssh/sshd_config.phabricator'
debug3: oom_adjust_setup
Set /proc/self/oom_score_adj from 0 to -1000
debug2: fd 3 setting O_NONBLOCK
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
debug2: fd 4 setting O_NONBLOCK
debug3: sock_set_v6only: set socket 4 IPV6_V6ONLY
debug1: Bind to port 22 on ::.
Server listening on :: port 22.
I think my public key is not correct,but I don't know how to modified it.
My /etc/passwd:
phassh:x:1000:1000:phabricator vcs-user:/usr/phassh:/bin/bash
My /etc/shadow:
phassh:NP:16882:0:99999:7:::
My /etc/sudoers:
phassh ALL=(root) SETENV: NOPASSWD: /usr/bin/svnserve
And another question is:
In the the Diffusion hosting repository guide says copy a publish key to Settings > SSH Public Keys,where the public key should are?