OpenSSH_7.0p1, OpenSSL 1.0.2d 9 Jul 2015
debug1: Reading configuration data /Users/chad/.ssh/config
debug1: /Users/chad/.ssh/config line 3: Applying options for *.wikimedia.org
debug1: /Users/chad/.ssh/config line 5: Skipping Host block because of negated match for gerrit.wikimedia.org
debug3: kex names ok: [curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256]
debug1: /Users/chad/.ssh/config line 8: Skipping Host block because of negated match for gerrit.wikimedia.org
debug1: /Users/chad/.ssh/config line 10: Applying options for gerrit.wikimedia.org
debug1: Reading configuration data /usr/local/etc/ssh/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to gerrit.wikimedia.org [2620::861:3:208:80:154:81] port 29418.
debug1: Connection established.
debug1: identity file /Users/chad/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/chad/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.0
debug1: Remote protocol version 2.0, remote software version GerritCodeReview_2.8.1-4-ga1048ce (SSHD-CORE-0.9.0)
debug1: no match: GerritCodeReview_2.8.1-4-ga1048ce (SSHD-CORE-0.9.0)
debug2: fd 5 setting O_NONBLOCK
debug1: Authenticating to gerrit.wikimedia.org:29418 as 'demon'
debug3: put_host_port: [gerrit.wikimedia.org]:29418
debug3: hostkeys_foreach: reading file "/Users/chad/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /Users/chad/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [gerrit.wikimedia.org]:29418
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,ssh-rsa
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
debug2: kex_parse_kexinit: ssh-rsa-cert-v01@openssh.com,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: 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,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: 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,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,aes192-cbc,aes256-cbc
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,aes192-cbc,aes256-cbc
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-md5-96,hmac-sha1-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-md5-96,hmac-sha1-96
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug1: kex: server->client aes128-cbc hmac-sha1 none
debug1: kex: client->server aes128-cbc hmac-sha1 none
Unable to negotiate with 2620::861:3:208:80:154:81: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1