SSH Multiplexing - mux_client_request_session: read from master failed: Connection reset by peer

Dennis Ordanov daodennis@gmail.com
Wed Aug 4 16:38:00 GMT 2010


Hi,

I just wanted to know if I answered my own question here or if there
is some work around for what I am trying to do below.

Thank you,

Dennis O.

On Wed, Jul 28, 2010 at 4:50 PM, Dennis Ordanov <daodennis@gmail.com> wrote:
> Hi,
>
> I'm trying to get SSH multiplexing on this very recent Cygwin install
> and I get this error:
>
> mux_client_request_session: read from master failed: Connection reset by peer
>
> I found this info by searching the mailing list archives, but that was
> back in 2005.  Maybe something has changed?
>
> http://sourceware.org/ml/cygwin/2005-10/msg00672.html
> http://sourceware.org/ml/cygwin/2005-11/msg00732.html
>
>
> Anyone else see this or know how I can get around this?
>
> Key-auth can be done on those hosts that it's feasible for all other
> laziness I'll have to try to see if I can get this work....
>
> Thanks Cygwin,
>
> Dennis O.
>
> Below is my -vvv output, anyone have any ideas
>
> $ ssh root@client.net -vvv
> OpenSSH_5.5p1, OpenSSL 0.9.8o 01 Jun 2010
> debug1: Reading configuration data /home/dennis/.ssh/config
> debug1: Applying options for *
> debug1: auto-mux: Trying existing master
> debug2: fd 3 setting O_NONBLOCK
> debug2: mux_client_hello_exchange: master version 4
> debug3: mux_client_request_forwards: requesting forwardings: 0 local, 0 remote
> debug3: mux_client_request_session: entering
> debug3: mux_client_request_alive: entering
> debug3: mux_client_request_alive: done pid = 8472
> debug3: mux_client_request_session: session request sent
> mux_client_request_session: read from master failed: Connection reset by peer
> debug2: ssh_connect: needpriv 0
> debug1: Connecting to client.net [209.197.69.2] port 22.
> debug1: Connection established.
> debug1: identity file /home/dennis/.ssh/id_rsa type -1
> debug1: identity file /home/dennis/ssh/id_rsa-cert type -1
> debug1: identity file /home/dennis/.ssh/id_dsa type -1
> debug1: identity file /home/dennis/.ssh/id_dsa-cert type -1
> debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
> debug1: match: OpenSSH_4.3 pat OpenSSH_4*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.5
> debug2: fd 4 setting O_NONBLOCK
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug2: kex_parse_kexinit:
> diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> debug2: kex_parse_kexinit:
> ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-rsa,ssh-dss
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,umac-64@openssh.com,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-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
> debug2: kex_parse_kexinit:
> aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> debug2: kex_parse_kexinit:
> aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit:
> hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> debug2: kex_parse_kexinit: none,zlib@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-md5
> debug1: kex: server-client aes128-ctr hmac-md5 none
> debug2: mac_setup: found hmac-md5
> debug1: kex: client-server aes128-ctr hmac-md5 none
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
> debug2: dh_gen_key: priv key bits set: 122/256
> debug2: bits set: 509/1024
> debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> debug3: check_host_in_hostfile: host client.net filename
> /home/dennis/.ssh/known_hosts
> debug3: check_host_in_hostfile: host client.net filename
> /home/dennis/.ssh/known_hosts
> debug3: check_host_in_hostfile: match line 1
> debug3: check_host_in_hostfile: host 209.197.69.2 filename
> /home/dennis/.ssh/known_hosts
> debug3: check_host_in_hostfile: host 209.197.69.2 filename
> /home/dennis/.ssh/known_hosts
> debug3: check_host_in_hostfile: match line 1
> debug1: Host 'client.net' is known and matches the RSA host key.
> debug1: Found key in /home/dennis/.ssh/known_hosts:1
> debug2: bits set: 526/1024
> debug1: ssh_rsa_verify: signature correct
> debug2: kex_derive_keys
> debug2: set_newkeys: mode 1
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug2: set_newkeys: mode 0
> debug1: SSH2_MSG_NEWKEYS received
> debug1: Roaming not allowed by server
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug2: service_accept: ssh-userauth
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug2: key: /home/dennis/.ssh/id_rsa (0x0)
> debug2: key: /home/dennis/.ssh/id_dsa (0x0)
> debug1: Authentications that can continue: publickey,gssapi-with-mic,password
> debug3: start over, passed a different list publickey,gssapi-with-mic,password
> debug3: preferred 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: /home/dennis/.ssh/id_rsa
> debug3: no such identity: /home/dennis/.ssh/id_rsa
> debug1: Trying private key: /home/dennis/.ssh/id_dsa
> debug3: no such identity: /home/dennis/.ssh/id_dsa
> debug2: we did not send a packet, disable method
> debug3: authmethod_lookup password
> debug3: remaining preferred: ,password
> debug3: authmethod_is_enabled password
> debug1: Next authentication method: password
> root@client.net's password:
>

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