[
https://issues.apache.org/jira/browse/SSHD-941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16938966#comment-16938966
]
Yuefeng commented on SSHD-941:
------------------------------
I tried "org.apache.sshd.maxDHGexKeySize=XX" workarounds, and the best I can
get is 50/50 chance of connecting with "org.apache.sshd.maxDHGexKeySize=2048".
here's the log for failed connection:
{code:java}
2019-09-26 20:34:15.006Z [sshd-SshClient[21c31bdd]-nio2-thread-21] DEBUG
o.a.s.c.session.ClientSessionImpl:68 - Client session created:
Nio2Session[local=/10.10.20.1:52646, remote=/10.10.20.25:22]
2019-09-26 20:34:15.006Z [sshd-SshClient[21c31bdd]-nio2-thread-21] DEBUG
o.a.s.c.s.ClientUserAuthService:101 -
ClientUserAuthService(ClientSessionImpl[null@/10.10.20.25:22]) client methods:
[publickey, keyboard-interactive, password]
2019-09-26 20:34:15.008Z [sshd-SshClient[21c31bdd]-nio2-thread-21] DEBUG
o.a.s.c.session.ClientSessionImpl:1569 -
sendIdentification(ClientSessionImpl[null@/10.10.20.25:22]):
SSH-2.0-SSHD-CORE-2.0.0
2019-09-26 20:34:15.009Z [sshd-SshClient[21c31bdd]-nio2-thread-21] DEBUG
o.a.s.c.session.ClientSessionImpl:1716 -
sendKexInit(ClientSessionImpl[null@/10.10.20.25:22]) Send SSH_MSG_KEXINIT
2019-09-26 20:34:15.011Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:164 -
addPasswordIdentity(ClientSessionImpl[admin@/10.10.20.25:22])
SHA256:ncCOQDOCfJP0jKvC9h4/mBe1Gn8bz6UTp1N9y8XRYuc
2019-09-26 20:34:15.011Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:150 -
auth(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection] send
SSH_MSG_USERAUTH_REQUEST for 'none'
2019-09-26 20:34:15.011Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:1110 -
writePacket(ClientSessionImpl[admin@/10.10.20.25:22])[SSH_MSG_USERAUTH_REQUEST]
Start flagging packets as pending until key exchange is done
2019-09-26 20:34:15.019Z [sshd-SshClient[21c31bdd]-nio2-thread-22] DEBUG
o.a.s.c.session.ClientSessionImpl:1653 -
doReadIdentification(ClientSessionImpl[admin@/10.10.20.25:22])
line='SSH-2.0-Cisco-1.25'
2019-09-26 20:34:15.020Z [sshd-SshClient[21c31bdd]-nio2-thread-22] DEBUG
o.a.s.c.session.ClientSessionImpl:375 -
readIdentification(ClientSessionImpl[admin@/10.10.20.25:22]) Server version
string: SSH-2.0-Cisco-1.25
2019-09-26 20:35:15.012Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:95 -
close(ClientSessionImpl[admin@/10.10.20.25:22]) Closing gracefully
2019-09-26 20:35:15.013Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:146 -
signalAuthFailure(ClientSessionImpl[admin@/10.10.20.25:22]) type=SshException,
signalled=true, message="Session is being closed"
2019-09-26 20:35:15.013Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:95 -
close(org.apache.sshd.client.session.ClientUserAuthService@166171bb) Closing
gracefully
2019-09-26 20:35:15.013Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:112 -
close(org.apache.sshd.client.session.ClientUserAuthService@166171bb)[Graceful]
closed
2019-09-26 20:35:15.013Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientConnectionService:95 -
close(ClientConnectionService[ClientSessionImpl[admin@/10.10.20.25:22]])
Closing gracefully
2019-09-26 20:35:15.014Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientConnectionService:104 -
close(ClientConnectionService[ClientSessionImpl[admin@/10.10.20.25:22]]][Graceful]
- operationComplete() closed
2019-09-26 20:35:15.022Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:80 -
close(ClientSessionImpl[admin@/10.10.20.25:22]) Closing immediately
2019-09-26 20:35:15.023Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:146 -
signalAuthFailure(ClientSessionImpl[admin@/10.10.20.25:22]) type=SshException,
signalled=false, message="Session is being closed"
2019-09-26 20:35:15.023Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:89 -
close(org.apache.sshd.client.session.ClientUserAuthService@166171bb)[Immediately]
state already Closed
2019-09-26 20:35:15.024Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientConnectionService:89 -
close(ClientConnectionService[ClientSessionImpl[admin@/10.10.20.25:22]])[Immediately]
state already Closed
2019-09-26 20:35:15.024Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:85 -
close(ClientSessionImpl[admin@/10.10.20.25:22])[Immediately] closed
{code}
log for successful connection:
{code:java}
2019-09-26 20:35:16.040Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:68 - Client session created:
Nio2Session[local=/10.10.20.1:54016, remote=/10.10.20.25:22]
2019-09-26 20:35:16.040Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.s.ClientUserAuthService:101 -
ClientUserAuthService(ClientSessionImpl[null@/10.10.20.25:22]) client methods:
[publickey, keyboard-interactive, password]
2019-09-26 20:35:16.041Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:1569 -
sendIdentification(ClientSessionImpl[null@/10.10.20.25:22]):
SSH-2.0-SSHD-CORE-2.0.0
2019-09-26 20:35:16.041Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:1716 -
sendKexInit(ClientSessionImpl[null@/10.10.20.25:22]) Send SSH_MSG_KEXINIT
2019-09-26 20:35:16.044Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:1653 -
doReadIdentification(ClientSessionImpl[admin@/10.10.20.25:22])
line='SSH-2.0-Cisco-1.25'
2019-09-26 20:35:16.044Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:164 -
addPasswordIdentity(ClientSessionImpl[admin@/10.10.20.25:22])
SHA256:ncCOQDOCfJP0jKvC9h4/mBe1Gn8bz6UTp1N9y8XRYuc
2019-09-26 20:35:16.044Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:375 -
readIdentification(ClientSessionImpl[admin@/10.10.20.25:22]) Server version
string: SSH-2.0-Cisco-1.25
2019-09-26 20:35:16.045Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:150 -
auth(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection] send
SSH_MSG_USERAUTH_REQUEST for 'none'
2019-09-26 20:35:16.045Z [pool-5-thread-1] DEBUG
o.a.s.c.session.ClientSessionImpl:1110 -
writePacket(ClientSessionImpl[admin@/10.10.20.25:22])[SSH_MSG_USERAUTH_REQUEST]
Start flagging packets as pending until key exchange is done
2019-09-26 20:35:16.046Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:823 -
handleKexInit(ClientSessionImpl[admin@/10.10.20.25:22]) SSH_MSG_KEXINIT
2019-09-26 20:35:16.046Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:2175 -
setNegotiationResult(ClientSessionImpl[admin@/10.10.20.25:22]) Kex:
server->client aes128-ctr hmac-sha1 none
2019-09-26 20:35:16.047Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:2179 -
setNegotiationResult(ClientSessionImpl[admin@/10.10.20.25:22]) Kex:
client->server aes128-ctr hmac-sha1 none
2019-09-26 20:35:16.047Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.sshd.client.kex.DHGEXClient:92 -
init(ClientSessionImpl[admin@/10.10.20.25:22]) Send SSH_MSG_KEX_DH_GEX_REQUEST
2019-09-26 20:35:16.247Z [sshd-SshClient[21c31bdd]-nio2-thread-25] DEBUG
o.a.sshd.client.kex.DHGEXClient:108 -
next(DHGEXClient[diffie-hellman-group-exchange-sha1])[ClientSessionImpl[admin@/10.10.20.25:22]]
process command=SSH_MSG_KEX_DH_GEX_GROUP
2019-09-26 20:35:16.258Z [sshd-SshClient[21c31bdd]-nio2-thread-25] DEBUG
o.a.sshd.client.kex.DHGEXClient:127 -
next(DHGEXClient[diffie-hellman-group-exchange-sha1])[ClientSessionImpl[admin@/10.10.20.25:22]]
Send SSH_MSG_KEX_DH_GEX_INIT
2019-09-26 20:35:16.259Z [sshd-SshClient[21c31bdd]-nio2-thread-25] DEBUG
o.a.s.c.session.ClientSessionImpl:678 -
handleKexMessage(ClientSessionImpl[admin@/10.10.20.25:22])[diffie-hellman-group-exchange-sha1]
more KEX packets expected after cmd=31
2019-09-26 20:35:16.276Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.sshd.client.kex.DHGEXClient:108 -
next(DHGEXClient[diffie-hellman-group-exchange-sha1])[ClientSessionImpl[admin@/10.10.20.25:22]]
process command=SSH_MSG_KEX_DH_GEX_REPLY
2019-09-26 20:35:16.286Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:671 -
handleKexMessage(ClientSessionImpl[admin@/10.10.20.25:22])[diffie-hellman-group-exchange-sha1]
KEX processing complete after cmd=33
2019-09-26 20:35:16.287Z [sshd-SshClient[21c31bdd]-nio2-thread-26] WARN
o.a.s.c.k.AcceptAllServerKeyVerifier:59 - Server at /10.10.20.25:22 presented
unverified RSA key: SHA256:qb8x7Bb8Q3x5rtAC/s/zTeHyOGpwyLolpvIYcFIfrhk
2019-09-26 20:35:16.287Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:433 -
checkKeys(ClientSessionImpl[admin@/10.10.20.25:22])
key=ssh-rsa-SHA256:qb8x7Bb8Q3x5rtAC/s/zTeHyOGpwyLolpvIYcFIfrhk, verified=true
2019-09-26 20:35:16.288Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:1813 -
sendNewKeys(ClientSessionImpl[admin@/10.10.20.25:22]) Send SSH_MSG_NEWKEYS
2019-09-26 20:35:16.288Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:856 -
handleNewKeys(ClientSessionImpl[admin@/10.10.20.25:22]) SSH_MSG_NEWKEYS
command=SSH_MSG_NEWKEYS
2019-09-26 20:35:16.288Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:1835 -
receiveNewKeys(ClientSessionImpl[admin@/10.10.20.25:22]) session
ID=f4:c5:ef:0d:51:99:34:61:58:5a:da:d7:4e:d7:da:72:4a:3e:60:84
2019-09-26 20:35:16.290Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:1942 -
receiveNewKeys(ClientSessionImpl[admin@/10.10.20.25:22])
inCipher=BaseCipher[AES,16,16,AES/CTR/NoPadding],
outCipher=BaseCipher[AES,16,16,AES/CTR/NoPadding], recommended blocks
limit=4294967296, actual=4294967296
2019-09-26 20:35:16.290Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:188 -
sendInitialServiceRequest(ClientSessionImpl[admin@/10.10.20.25:22]) Send
SSH_MSG_SERVICE_REQUEST for ssh-userauth
2019-09-26 20:35:16.293Z [sshd-SshClient[21c31bdd]-nio2-thread-26] DEBUG
o.a.s.c.session.ClientSessionImpl:882 -
handleNewKeys(ClientSessionImpl[admin@/10.10.20.25:22]) sent 1 pending packets
2019-09-26 20:35:16.495Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.session.ClientSessionImpl:816 -
handleServiceAccept(ClientSessionImpl[admin@/10.10.20.25:22])
SSH_MSG_SERVICE_ACCEPT service=ssh-userauth
2019-09-26 20:35:16.496Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:239 -
processUserAuth(ClientSessionImpl[admin@/10.10.20.25:22]) Received
SSH_MSG_USERAUTH_FAILURE - partial=false,
methods=publickey,keyboard-interactive,password
2019-09-26 20:35:16.496Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:280 -
tryNext(ClientSessionImpl[admin@/10.10.20.25:22]) starting authentication
mechanisms: client=[publickey, keyboard-interactive, password],
server=[publickey, keyboard-interactive, password]
2019-09-26 20:35:16.496Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:328 -
tryNext(ClientSessionImpl[admin@/10.10.20.25:22]) attempting method=publickey
2019-09-26 20:35:16.498Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.a.pubkey.UserAuthPublicKey:94 -
sendAuthDataRequest(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection]
no more keys to send
2019-09-26 20:35:16.498Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:285 -
tryNext(ClientSessionImpl[admin@/10.10.20.25:22]) no initial request sent by
method=publickey
2019-09-26 20:35:16.499Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.a.pubkey.UserAuthPublicKey:84 -
destroy(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection]
2019-09-26 20:35:16.499Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:328 -
tryNext(ClientSessionImpl[admin@/10.10.20.25:22]) attempting
method=keyboard-interactive
2019-09-26 20:35:16.500Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.a.k.UserAuthKeyboardInteractive:224 -
verifyTrialsCount(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection]
cmd=SSH_MSG_USERAUTH_REQUEST - 0 out of 3
2019-09-26 20:35:16.501Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.a.k.UserAuthKeyboardInteractive:114 -
sendAuthDataRequest(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection]
send SSH_MSG_USERAUTH_REQUEST for keyboard-interactive: lang=, methods=
2019-09-26 20:35:16.501Z [sshd-SshClient[21c31bdd]-nio2-thread-27] DEBUG
o.a.s.c.s.ClientUserAuthService:297 -
tryNext(ClientSessionImpl[admin@/10.10.20.25:22]) successfully processed
initial buffer by method=keyboard-interactive
{code}
The difference I see between the successful log and failed log, is the order of
{code:java}
2019-09-26 20:35:16.044Z [sshd-SshClient[21c31bdd]-nio2-thread-24] DEBUG
o.a.s.c.session.ClientSessionImpl:375 -
readIdentification(ClientSessionImpl[admin@/10.10.20.25:22]) Server version
string: SSH-2.0-Cisco-1.25
2019-09-26 20:35:16.045Z [pool-5-thread-1] DEBUG
o.a.s.c.s.ClientUserAuthService:150 -
auth(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection] send
SSH_MSG_USERAUTH_REQUEST for 'none'
{code}
The successful connection prints "Server version string: SSH-2.0-Cisco-1.25"
before "send SSH_MSG_USERAUTH_REQUEST", where the failed connection is reverse.
> mina ssh client times out connecting with IOS 15.2
> --------------------------------------------------
>
> Key: SSHD-941
> URL: https://issues.apache.org/jira/browse/SSHD-941
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Yuefeng
> Assignee: Lyor Goldstein
> Priority: Major
>
> Other device is Cisco IOS 15.2 -
> IOS-15#show version
> Cisco IOS Software, Linux Software (I86BI_LINUXL2-ADVENTERPRISEK9-M), Version
> 15.2(CML_NIGHTLY_20180510)FLO_DSGS7, EARLY DEPLOYMENT DEVELOPMENT BUILD,
> synced to V152_6_0_81_E
>
> apache.sshd always times out connecting to this device -
>
> {code:java}
> 2019-09-12 20:42:30.559Z [sshd-SshClient[4ae0d26a]-nio2-thread-15] DEBUG
> o.a.s.c.session.ClientSessionImpl:68 - Client session created:
> Nio2Session[local=/10.10.20.1:41950, remote=/10.10.20.25:22]
> 2019-09-12 20:42:30.559Z [sshd-SshClient[4ae0d26a]-nio2-thread-15] DEBUG
> o.a.s.c.s.ClientUserAuthService:101 -
> ClientUserAuthService(ClientSessionImpl[null@/10.10.20.25:22]) client
> methods: [publickey, keyboard-interactive, password]
> 2019-09-12 20:42:30.559Z [sshd-SshClient[4ae0d26a]-nio2-thread-15] DEBUG
> o.a.s.c.session.ClientSessionImpl:1569 -
> sendIdentification(ClientSessionImpl[null@/10.10.20.25:22]):
> SSH-2.0-SSHD-CORE-2.0.0
> 2019-09-12 20:42:30.560Z [sshd-SshClient[4ae0d26a]-nio2-thread-15] DEBUG
> o.a.s.c.session.ClientSessionImpl:1716 -
> sendKexInit(ClientSessionImpl[null@/10.10.20.25:22]) Send SSH_MSG_KEXINIT
> 2019-09-12 20:42:30.560Z [collector-55326-2] DEBUG
> o.a.s.c.s.ClientUserAuthService:150 -
> auth(ClientSessionImpl[admin@/10.10.20.25:22])[ssh-connection] send
> SSH_MSG_USERAUTH_REQUEST for 'none'
> 2019-09-12 20:42:30.564Z [collector-55326-2] DEBUG
> o.a.s.c.session.ClientSessionImpl:1110 -
> writePacket(ClientSessionImpl[admin@/10.10.20.25:22])[SSH_MSG_USERAUTH_REQUEST]
> Start flagging packets as pending until key exchange is done
> 2019-09-12 20:42:30.612Z [sshd-SshClient[4ae0d26a]-nio2-thread-9] DEBUG
> o.a.s.c.session.ClientSessionImpl:1653 -
> doReadIdentification(ClientSessionImpl[admin@/10.10.20.25:22])
> line='SSH-2.0-Cisco-1.25'
> 2019-09-12 20:42:30.612Z [sshd-SshClient[4ae0d26a]-nio2-thread-9] DEBUG
> o.a.s.c.session.ClientSessionImpl:375 -
> readIdentification(ClientSessionImpl[admin@/10.10.20.25:22]) Server version
> string: SSH-2.0-Cisco-1.25
> 2019-09-12 20:42:50.565Z [collector-55326-2] WARN
> c.forwardnetworks.client.web.a.b.e:181 - SSH auth failed:
> DefaultAuthFuture[ssh-connection]: Failed to get operation result within
> specified timeout: 20000
> org.apache.sshd.common.SshException: DefaultAuthFuture[ssh-connection]:
> Failed to get operation result within specified timeout: 20000
> {code}
>
> ssh on linux has no problem connecting -
> {code:java}
> root@eve-ng:/opt/fwd/logs# ssh -vvvv [email protected]
> OpenSSH_7.2p2 Ubuntu-4ubuntu2.8, OpenSSL 1.0.2g 1 Mar 2016
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: /etc/ssh/ssh_config line 19: Applying options for *
> debug2: resolving "10.10.20.25" port 22
> debug2: ssh_connect_direct: needpriv 0
> debug1: Connecting to 10.10.20.25 [10.10.20.25] port 22.
> debug1: Connection established.
> debug1: permanently_set_uid: 0/0
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_rsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_rsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_dsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_dsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_ecdsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_ecdsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_ed25519 type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /root/.ssh/id_ed25519-cert type -1
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.8
> debug1: Remote protocol version 2.0, remote software version Cisco-1.25
> debug1: match: Cisco-1.25 pat Cisco-1.* compat 0x60000000
> debug2: fd 3 setting O_NONBLOCK
> debug1: Authenticating to 10.10.20.25:22 as 'admin'
> debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
> debug3: record_hostkey: found key type RSA in file /root/.ssh/known_hosts:9
> debug3: load_hostkeys: loaded 1 keys from 10.10.20.25
> debug3: order_hostkeyalgs: prefer hostkeyalgs:
> [email protected],rsa-sha2-512,rsa-sha2-256,ssh-rsa
> 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:
> [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
> debug2: host key algorithms:
> [email protected],rsa-sha2-512,rsa-sha2-256,ssh-rsa,[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
> debug2: ciphers ctos:
> [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
> debug2: ciphers stoc:
> [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
> debug2: MACs ctos:
> [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
> debug2: MACs stoc:
> [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
> debug2: compression ctos: none,[email protected],zlib
> debug2: compression stoc: none,[email protected],zlib
> debug2: languages ctos:
> debug2: languages stoc:
> debug2: first_kex_follows 0
> debug2: reserved 0
> debug2: peer server KEXINIT proposal
> debug2: KEX algorithms:
> diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> debug2: host key algorithms: ssh-rsa
> debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr
> debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr
> debug2: MACs ctos: hmac-sha1,hmac-sha1-96
> debug2: MACs stoc: hmac-sha1,hmac-sha1-96
> 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: diffie-hellman-group-exchange-sha1
> debug1: kex: host key algorithm: ssh-rsa
> debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression:
> none
> debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression:
> none
> debug3: send packet: type 34
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<4096<8192) sent
> debug3: receive packet: type 31
> debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
> debug2: bits set: 2030/4096
> debug3: send packet: type 32
> debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> debug3: receive packet: type 33
> debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
> debug1: Server host key: ssh-rsa
> SHA256:qb8x7Bb8Q3x5rtAC/s/zTeHyOGpwyLolpvIYcFIfrhk
> debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
> debug3: record_hostkey: found key type RSA in file /root/.ssh/known_hosts:9
> debug3: load_hostkeys: loaded 1 keys from 10.10.20.25
> debug1: Host '10.10.20.25' is known and matches the RSA host key.
> debug1: Found key in /root/.ssh/known_hosts:9
> debug2: bits set: 2098/4096
> debug3: send packet: type 21
> debug2: set_newkeys: mode 1
> debug1: rekey after 4294967296 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 4294967296 blocks
> debug2: key: /root/.ssh/id_rsa ((nil))
> debug2: key: /root/.ssh/id_dsa ((nil))
> debug2: key: /root/.ssh/id_ecdsa ((nil))
> debug2: key: /root/.ssh/id_ed25519 ((nil))
> debug3: send packet: type 5
> 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,keyboard-interactive,password
> debug3: start over, passed a different list
> publickey,keyboard-interactive,password
> 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: 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_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
> debug3: send packet: type 50
> debug2: we sent a keyboard-interactive packet, wait for reply
> debug3: receive packet: type 60
> debug2: input_userauth_info_req
> debug2: input_userauth_info_req: num_prompts 1
> Password:
> {code}
>
>
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