[plug] Looking for assistance with a recent Debian upgrade
Joe Aquilina
joe at chem.com.au
Wed Dec 18 10:43:36 AWST 2019
I have no idea about selinux, whether it is installed/enabled. How do I
check that and disable it if necessary, and then re-enable?
openssh versions are as follows:
client - 1:7.6p1-4ubuntu0.3 amd64
server - 1:7.9p1-10+deb10u1 i386
second buster server - 1:7.9p1-10+deb10u1 amd64
More verbose output from a second login attempt:
ssh -vvv plato
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /home/joe/.ssh/config
debug1: /home/joe/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "<server>" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to <server> [ip.address of server] port 22.
debug1: Connection established.
debug1: identity file /home/joe/.ssh/id_rsa_halley type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/joe/.ssh/id_rsa_halley-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version
OpenSSH_7.9p1 Debian-10+deb10u1
debug1: match: OpenSSH_7.9p1 Debian-10+deb10u1 pat OpenSSH* compat
0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to <server>:22 as 'joe'
debug3: hostkeys_foreach: reading file "/home/joe/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file
/home/joe/.ssh/known_hosts:26
debug3: load_hostkeys: loaded 1 keys from <server>
debug3: order_hostkeyalgs: prefer hostkeyalgs:
ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
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 at 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-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms:
ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
debug2: ciphers stoc:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
debug2: MACs ctos:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib at openssh.com,zlib
debug2: compression stoc: none,zlib at 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 at 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,diffie-hellman-group14-sha1
debug2: host key algorithms:
rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
debug2: ciphers stoc:
chacha20-poly1305 at openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm at openssh.com,aes256-gcm at openssh.com
debug2: MACs ctos:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib at openssh.com
debug2: compression stoc: none,zlib at 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: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305 at openssh.com MAC:
<implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305 at openssh.com MAC:
<implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256
SHA256:QV8T212i8K1hhd5P4GVpOFHsOtSDhA30GIlfRug/03c
debug3: hostkeys_foreach: reading file "/home/joe/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file
/home/joe/.ssh/known_hosts:26
debug3: load_hostkeys: loaded 1 keys from <server>
debug3: hostkeys_foreach: reading file "/home/joe/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file
/home/joe/.ssh/known_hosts:27
debug3: load_hostkeys: loaded 1 keys from <ip.address of server>
debug1: Host '<server>' is known and matches the ECDSA host key.
debug1: Found key in /home/joe/.ssh/known_hosts:26
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
debug2: key: (0x55edbf9caa50), agent
debug2: key: (0x55edbf9ced70), agent
debug2: key: /home/joe/.ssh/id_rsa_halley (0x55edbf9bd140), explicit
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,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
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-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: RSA
SHA256:cxe0DjCO0G8l1o5GygqKYyG0kgDEPA2K9In3zFvuRsw
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg rsa-sha2-512 blen 535
debug2: input_userauth_pk_ok: fp
SHA256:cxe0DjCO0G8l1o5GygqKYyG0kgDEPA2K9In3zFvuRsw
debug3: sign_and_send_pubkey: RSA
SHA256:cxe0DjCO0G8l1o5GygqKYyG0kgDEPA2K9In3zFvuRsw
debug3: send packet: type 50
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to <server> ([ip.address of server]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions at openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: send packet: type 1
packet_write_wait: Connection to <ip.address of server> port 22: Broken pipe
Hope that helps.
Cheers.
Joe Aquilina
On 18/12/19 9:54 am, stinga wrote:
> On 18/12/2019 09:43, Joe Aquilina wrote:
>> Happy to provide more verbose output if required, or config files if
>> required.
>
> Up the verbosity and give us the output.
>
> Is selinux enabled? maybe that is causing trouble (Maybe turn it off
> and try to login, don't leave it off though)
>
> What about ssh versions? client/server etc.
> --
> 'ooroo
>
> Stinga...(:)-)
> ---------------------------------------------------
> Email:stinga at wolf-rock.com o
> You need only two tools. o /////
> A hammer and duct tape. If it /@ `\ /) ~
> doesn't move and it should use > (O) X< ~ Fish!!
> the hammer. If it moves and `\___/' \) ~
> shouldn't, use the tape. \\\
> ---------------------------------------------------
>
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--
Joe Aquilina
Central Chemical Consulting Pty Ltd
PO Box 2546 Malaga WA 6944 Australia
1/11 Narloo St Malaga 6090 Australia
Tel: +61 8 9248 2739 Fax: +61 8 9248 2749
joe at chem.com.au www.chem.com.au
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