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Re: ssh stalls after completion of command



> I include logs of the
> server (sshd.txt) and of the client (ssh.txt).

Sorry, here they are. Outlook was faster than me.
debug1: Seeding random number generator
debug1: sshd version OpenSSH_2.9p1
debug1: private host key: #0 type 0 RSA1
debug3: No RSA1 key file /etc/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: private host key: #1 type 1 RSA
debug3: No RSA1 key file /etc/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: private host key: #2 type 2 DSA
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
Generating 768 bit RSA key.
RSA key generation complete.
debug1: Server will not fork when running in debugging mode.
Connection from 128.176.180.133 port 2512
debug1: Client protocol version 2.0; client software version OpenSSH_2.9p2
debug1: match: OpenSSH_2.9p2 pat ^OpenSSH
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-1.99-OpenSSH_2.9p1
debug1: Rhosts Authentication disabled, originating port not trusted.
debug1: list_hostkey_types: ssh-rsa,ssh-dss
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-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael128-cbc,rijndael192-cbc,rijndael256-cbc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael128-cbc,rijndael192-cbc,rijndael256-cbc,rijndael-cbc@lysator.liu.se
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
debug2: kex_parse_kexinit: none,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-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael128-cbc,rijndael192-cbc,rijndael256-cbc,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael128-cbc,rijndael192-cbc,rijndael256-cbc,rijndael-cbc@lysator.liu.se
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
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 
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent
debug1: dh_gen_key: priv key bits set: 127/256
debug1: bits set: 1027/2049
debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT
debug1: bits set: 1003/2049
debug2: ssh_rsa_sign: done
debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent
debug1: kex_derive_keys
debug1: newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: waiting for SSH2_MSG_NEWKEYS
debug1: newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: KEX done
debug1: userauth-request for user wuebbel service ssh-connection method none
debug1: attempt 0 failures 0
debug2: input_userauth_request: setting up authctxt for wuebbel
debug2: input_userauth_request: try method none
Failed none for wuebbel from 128.176.180.133 port 2512 ssh2
debug1: userauth-request for user wuebbel service ssh-connection method publickey
debug1: attempt 1 failures 1
debug2: input_userauth_request: try method publickey
debug1: test whether pkalg/pkblob are acceptable
debug1: temporarily_use_uid: 500/544 (e=500)
debug1: matching key found: file /home/wuebbel/.ssh/authorized_keys2, line 1
debug1: restore_uid
debug2: userauth_pubkey: authenticated 0 pkalg ssh-dss
Postponed publickey for wuebbel from 128.176.180.133 port 2512 ssh2
debug1: userauth-request for user wuebbel service ssh-connection method publickey
debug1: attempt 2 failures 1
debug2: input_userauth_request: try method publickey
debug1: temporarily_use_uid: 500/544 (e=500)
debug1: matching key found: file /home/wuebbel/.ssh/authorized_keys2, line 1
debug1: restore_uid
debug1: len 55 datafellows 0
debug1: ssh_dss_verify: signature correct
debug2: userauth_pubkey: authenticated 1 pkalg ssh-dss
Accepted publickey for wuebbel from 128.176.180.133 port 2512 ssh2
debug1: Entering interactive session for SSH2.
debug1: server_init_dispatch_20
debug1: server_input_channel_open: ctype session rchan 0 win 65536 max 32768
debug1: input_session_request
debug1: channel 0: new [server-session]
debug1: session_new: init
debug1: session_new: session 0
debug1: session_open: channel 0
debug1: session_open: session 0: link with channel 0
debug1: server_input_channel_open: confirm session
debug2: callback start
debug1: session_by_channel: session 0 channel 0
debug1: session_input_channel_req: session 0 channel 0 request exec reply 0
debug1: fd 8 setting O_NONBLOCK
debug1: fd 7 setting O_NONBLOCK
debug1: fd 10 setting O_NONBLOCK
debug2: callback done
debug2: channel 0: read 2026 from efd 10
debug2: channel 0: rwin 65536 elen 2026 euse 1
debug2: channel 0: sent ext data 2026
debug2: channel 0: read 1140 from efd 10
debug2: channel 0: rwin 63510 elen 1140 euse 1
debug2: channel 0: sent ext data 1140
debug1: Received SIGCHLD.
debug1: session_by_pid: pid 554477
debug1: session_exit_message: session 0 channel 0 pid 554477
debug1: session_exit_message: release channel 0
debug1: channel 0: write failed
debug1: channel 0: output open -> closed
debug1: channel 0: close_write
debug1: session_free: session 0 pid 554477

OpenSSH_2.9p2, SSH protocols 1.5/2.0, OpenSSL 0x0090602f
debug1: Reading configuration data /usr/etc/ssh_config
debug1: Seeded RNG with 39 bytes from programs
debug1: Seeded RNG with 3 bytes from system calls
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: restore_uid
debug1: ssh_connect: getuid 4438 geteuid 0 anon 1
debug1: Connecting to gelfand [128.176.180.89] port 22.
debug1: temporarily_use_uid: 4438/150 (e=0)
debug1: restore_uid
debug1: temporarily_use_uid: 4438/150 (e=0)
debug1: restore_uid
debug1: Connection established.
debug1: read PEM private key done: type DSA
debug1: read PEM private key done: type RSA
debug1: identity file /u/wuebbel/.ssh/identity type 0
debug1: identity file /u/wuebbel/.ssh/id_rsa type -1
debug1: identity file /u/wuebbel/.ssh/id_dsa type 2
debug1: Remote protocol version 1.99, remote software version OpenSSH_2.9p1
debug1: match: OpenSSH_2.9p1 pat ^OpenSSH
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_2.9p2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: dh_gen_key: priv key bits set: 106/256
debug1: bits set: 997/2049
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'gelfand' is known and matches the RSA host key.
debug1: Found key in /u/wuebbel/.ssh/known_hosts2:1
debug1: bits set: 1009/2049
debug1: ssh_rsa_verify: signature correct
debug1: kex_derive_keys
debug1: newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: waiting for SSH2_MSG_NEWKEYS
debug1: newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: done: ssh_kex2.
debug1: send SSH2_MSG_SERVICE_REQUEST
debug1: service_accept: ssh-userauth
debug1: got SSH2_MSG_SERVICE_ACCEPT
debug1: authentications that can continue: publickey,password,keyboard-interactive
debug1: next auth method to try is publickey
debug1: try privkey: /u/wuebbel/.ssh/id_rsa
debug1: try pubkey: /u/wuebbel/.ssh/id_dsa
debug1: input_userauth_pk_ok: pkalg ssh-dss blen 434 lastkey 0x810baa0 hint 2
debug1: read PEM private key done: type DSA
debug1: sig size 20 20
debug1: ssh-userauth2 successful: method publickey
debug1: fd 7 setting O_NONBLOCK
debug1: fd 8 IS O_NONBLOCK
debug1: channel 0: new [client-session]
debug1: channel_new: 0
debug1: send channel open 0
debug1: Entering interactive session.
debug1: client_init id 0 arg 0
debug1: Sending command: id
debug1: channel 0: open confirm rwindow 0 rmax 16384
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
uid=500(wuebbel) gid=544
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