Running debian jessie I have one openindiana (solaris) host on my home lan. That host has had no updates or changes recently.
Following a `full-upgrade' yesterday on a debian host, I am now seeing an ssh failure with output I have not seen before, when ssh from openindian host to debian host (newly full upgraded). >From here on I'll refer to the hosts as LOCAL-sol and REMOTE-deb The LOCAL-sol host can ssh to all other lan hosts without problems, including 2 other debian hosts (not recently upgraded) So cutting to the chase: It appears likely that something changed on REMOTE-deb that is causing incoming ssh from LOCAL-sol to fail. Apparently something in the OS makeup of LOCAL-sol host disagrees with some recent change in REMOTE-deb. I use the following command very often until now: from: LOCAL-sol ssh to REMOTE-deb Note that I do not use any kind of key matching, agents or what not... just straight ssh password access for quite a long time. Also note as posted above... this same LOCAL-sol host can ssh to other (non-upgraded) debian hosts on my lan with no problem. ------- ------- ---=--- ------- ------- harry-on-REMOTE-sol > ssh REMOTE-deb no common kex alg: client 'diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1', server 'curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1' ------- ------- ---=--- ------- ------- (ssh Verbose output is posted futher along). Its possible I've changed something on the LOCAL-sol host... but can't think what it might be. Further, the ssh -vv ouput below is pretty confusing to me, and did not help me debug it. Googling the above error output lead to some similar occurances but from quite a good while ago... 2005-2006 and I did not see the solution. ------- ------- ---=--- ------- ------- from LOCAL-sol > ssh -vv REMOTE-deb (I've edited host names below, where ever I saw them) Sun_SSH_1.5, SSH protocols 1.5/2.0, OpenSSL 0x0090819f debug1: Reading configuration data /etc/ssh/ssh_config debug1: Rhosts Authentication disabled, originating port will not be trusted. debug1: ssh_connect: needpriv 0 debug1: Connecting to REMOTE-deb [192.168.0.5] port 22. debug1: Connection established. debug1: identity file /home/harry/.ssh/identity type -1 debug1: identity file /home/harry/.ssh/id_rsa type -1 debug1: identity file /home/harry/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.7p1 Debian-3 debug1: match: OpenSSH_6.7p1 Debian-3 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-Sun_SSH_1.5 debug1: use_engine is 'yes' debug1: pkcs11 engine initialized, now setting it as default for RSA, DSA, and symmetric ciphers debug1: pkcs11 engine initialization complete debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,arcfour,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,3des-cbc debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,arcfour,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,3des-cbc debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: en-US debug2: kex_parse_kexinit: en-US debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug1: Failed to acquire GSS-API credentials for any mechanisms (No credentials were supplied, or the credentials were unavailable or inaccessible ) debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,arcfour,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,3des-cbc debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour128,arcfour256,arcfour,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,3des-cbc debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: en-US debug2: kex_parse_kexinit: en-US debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519 debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes128-...@openssh.com,aes256-...@openssh.com,chacha20-poly1...@openssh.com debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes128-...@openssh.com,aes256-...@openssh.com,chacha20-poly1...@openssh.com debug2: kex_parse_kexinit: umac-64-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-256-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha1-...@openssh.com,umac...@openssh.com,umac-...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: kex_parse_kexinit: umac-64-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-256-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha1-...@openssh.com,umac...@openssh.com,umac-...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: kex_parse_kexinit: none,z...@openssh.com debug2: kex_parse_kexinit: none,z...@openssh.com debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-sha1 debug1: kex: server->client aes128-ctr hmac-sha1 none debug2: mac_setup: found hmac-sha1 debug1: kex: client->server aes128-ctr hmac-sha1 none no common kex alg: client 'diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1', server 'curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1' debug1: Calling cleanup 0x807a08c(0x0) -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". 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