[savannah-help-public] [sr #109028] ssh access work with Ubuntu 14.04, but not 16.04

[Kai Sterker]

URL:
  <http://savannah.gnu.org/support/?109028>

                 Summary: ssh access work with Ubuntu 14.04, but not 16.04
                 Project: Savannah Administration
            Submitted by: ksterker
            Submitted on: Mon 02 May 2016 06:21:47 PM GMT
                Category: Source code repositories - developer access
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: None
             Assigned to: None
        Originator Email: address@hidden
        Operating System: GNU/Linux
             Open/Closed: Open
         Discussion Lock: Any

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Details:

And there's a second issue I recently ran into. I've recently installed Ubuntu
16.04 and copied over my old .ssh/ configuration, with which I am able to
access cvs just fine.

Doesn't work on the fresh install of 16.04, however. I tried creating a new
key, but even a few days after uploading still no luck. Here's the relevant
info

address@hidden:~/adonthell/adonthell-0.3$ ssh -vvv
address@hidden Ubuntu-4, OpenSSL 1.0.2g-fips  1
Mar 2016
debug1: Reading configuration data /home/kai/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "cvs.savannah.gnu.org" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to cvs.savannah.gnu.org [208.118.235.72] port 22.
debug1: Connection established.
debug1: identity file /home/kai/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/kai/.ssh/id_rsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9
debug1: match: OpenSSH_5.9 pat OpenSSH_5* compat 0x0c000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to cvs.savannah.gnu.org:22 as 'ksterker'
debug3: hostkeys_foreach: reading file "/home/kai/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file
/home/kai/.ssh/known_hosts:12
debug3: load_hostkeys: loaded 1 keys from cvs.savannah.gnu.org
debug3: order_hostkeyalgs: prefer hostkeyalgs:
address@hidden,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:
address@hidden,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:
address@hidden,rsa-sha2-512,rsa-sha2-256,ssh-rsa,address@hidden,address@hidden,address@hidden,address@hidden,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos:
address@hidden,aes128-ctr,aes192-ctr,aes256-ctr,address@hidden,address@hidden,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: ciphers stoc:
address@hidden,aes128-ctr,aes192-ctr,aes256-ctr,address@hidden,address@hidden,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: MACs ctos:
address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,address@hidden,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,address@hidden,zlib
debug2: compression stoc: none,address@hidden,zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms:
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,address@hidden
debug2: ciphers stoc:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,address@hidden
debug2: MACs ctos:
hmac-md5,hmac-sha1,address@hidden,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,address@hidden,hmac-sha1-96,hmac-md5-96
debug2: MACs stoc:
hmac-md5,hmac-sha1,address@hidden,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,address@hidden,hmac-sha1-96,hmac-md5-96
debug2: compression ctos: none,address@hidden
debug2: compression stoc: none,address@hidden
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: ecdh-sha2-nistp256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: address@hidden
compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: address@hidden
compression: none
debug3: send packet: type 30
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ssh-rsa
SHA256:FYkx0iik+iBeCLRzvUyUSTRT98TEBBJoYuQsTXbyGL8
debug3: hostkeys_foreach: reading file "/home/kai/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file
/home/kai/.ssh/known_hosts:12
debug3: load_hostkeys: loaded 1 keys from cvs.savannah.gnu.org
debug3: hostkeys_foreach: reading file "/home/kai/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file
/home/kai/.ssh/known_hosts:27
debug3: load_hostkeys: loaded 1 keys from 208.118.235.72
debug1: Host 'cvs.savannah.gnu.org' is known and matches the RSA host key.
debug1: Found key in /home/kai/.ssh/known_hosts:12
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
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS received
debug2: key: /home/kai/.ssh/id_rsa (0x55d62e5fed40), agent
debug1: Skipping ssh-dss key address@hidden - not in PubkeyAcceptedKeyTypes
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
debug3: start over, passed a different list publickey
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 RSA public key: /home/kai/.ssh/id_rsa
debug3: send_pubkey_test
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
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey).

address@hidden:~/adonthell/adonthell-0.3$ ssh-keygen -lf ~/.ssh/id_rsa.pub  
2048 SHA256:T1T7iEj1Zi988psVVvxWNYOxdZY+aHKMjTdYusSijQs address@hidden (RSA)

address@hidden:~/adonthell$ cvs -t
-d:ext:address@hidden/cvsroot/adonthell co adonthell-0.3
  -> main: Session ID is 100572799F30E1854FE
  -> main loop with CVSROOT=/cvsroot/adonthell
  -> safe_location( where=(null) )
  -> open_connection_to_server
(:ext:address@hidden/cvsroot/adonthell)
 -> Starting server: ssh -l ksterker cvs.savannah.gnu.org cvs server 
Permission denied (publickey).
cvs [checkout aborted]: end of file from server (consult above messages if
any)

Pretty sure it's something stupid on my end, but cannot figure out what's
wrong, and switching back and forth between OSes just to commit or check out
some changes is getting inconvenient. So any help with that would be greatly
appreciated. Thanks!

Kai




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