Can anyone please help? The SFTP server is proftpd. This looks like an old
Rekeying problem between Proftpd and Jsch. I have tried JSCH version 50/51 and
54 with no luck.
Thanks,
Vikas.
________________________________
From: Vikas Verma <vvick...@hotmail.com>
Sent: Wednesday, September 14, 2016 11:43:16 AM
To: jsch-users@lists.sourceforge.net
Subject: SFTP of large file hangs
We are having a strange issue with one of our clients (Client hosts the SFTP
server. We are the client using JSCH). When we SFTP a large file to their SFTP
server the file stops getting uploaded after exactly 2143990632 bytes. The JSCH
connection just starts over at that point. I am including the logs. Has anyone
seen this behavior before? I can use any other SFTP client with that server and
they work.
In the logs you will see that after my custom log prints (3 and 4) it starts
putting the file. After sending 2143990632 bytes it kind of starts over and the
highlighted log shows up. The file at that point does not "grow" in size on the
server side.
Help truly appreciated !!
Thanks,
Vikas.
INFO: Connecting to xxx.xxx.xxx.xx port 22
INFO: Connection established
INFO: Remote version string: SSH-2.0-mod_sftp/0.9.7
INFO: Local version string: SSH-2.0-JSCH-0.1.53
INFO: CheckCiphers:
aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO: aes256-ctr is not available.
INFO: aes192-ctr is not available.
INFO: aes256-cbc is not available.
INFO: aes192-cbc is not available.
INFO: CheckKexes:
diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO: CheckSignatures:
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: SSH_MSG_KEXINIT sent
INFO: SSH_MSG_KEXINIT received
INFO: kex: server:
diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,rsa1024-sha1
INFO: kex: server: ssh-rsa,ssh-dss
INFO: kex: server:
aes256-ctr,aes192-ctr,aes128-ctr,aes128-cbc,blowfish-ctr,blowfish-cbc,cast128-cbc,arcfour256,arcfour128,3des-ctr,3des-cbc
INFO: kex: server:
aes256-ctr,aes192-ctr,aes128-ctr,aes128-cbc,blowfish-ctr,blowfish-cbc,cast128-cbc,arcfour256,arcfour128,3des-ctr,3des-cbc
INFO: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160
INFO: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160
INFO: kex: server: z...@openssh.com,zlib,none
INFO: kex: server: z...@openssh.com,zlib,none
INFO: kex: server:
INFO: kex: server:
INFO: kex: client:
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
INFO: kex: client:
ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: none
INFO: kex: client: none
INFO: kex: client:
INFO: kex: client:
INFO: kex: server->client aes128-ctr hmac-md5 none
INFO: kex: client->server aes128-ctr hmac-md5 none
INFO: SSH_MSG_KEXDH_INIT sent
INFO: expecting SSH_MSG_KEXDH_REPLY
INFO: ssh_rsa_verify: signature true
WARN: Permanently added 'xxx.xxx.xxx.xx' (RSA) to the list of known hosts.
INFO: SSH_MSG_NEWKEYS sent
INFO: SSH_MSG_NEWKEYS received
INFO: SSH_MSG_SERVICE_REQUEST sent
INFO: SSH_MSG_SERVICE_ACCEPT received
INFO: Authentications that can continue: publickey,keyboard-interactive,password
INFO: Next authentication method: publickey
INFO: Authentications that can continue: password
INFO: Next authentication method: password
INFO: Authentication succeeded (password).
-----------------------------------3
-----------------------------------4
INFO: CheckCiphers:
aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO: aes256-ctr is not available.
INFO: aes192-ctr is not available.
INFO: aes256-cbc is not available.
INFO: aes192-cbc is not available.
INFO: CheckKexes:
diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO: CheckSignatures:
ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: SSH_MSG_KEXINIT sent
INFO: kex: server:
diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,rsa1024-sha1
INFO: kex: server: ssh-rsa,ssh-dss
INFO: kex: server:
aes256-ctr,aes192-ctr,aes128-ctr,aes128-cbc,blowfish-ctr,blowfish-cbc,cast128-cbc,arcfour256,arcfour128,3des-ctr,3des-cbc
INFO: kex: server:
aes256-ctr,aes192-ctr,aes128-ctr,aes128-cbc,blowfish-ctr,blowfish-cbc,cast128-cbc,arcfour256,arcfour128,3des-ctr,3des-cbc
INFO: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160
INFO: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160
INFO: kex: server: z...@openssh.com,zlib,none
INFO: kex: server: z...@openssh.com,zlib,none
INFO: kex: server:
INFO: kex: server:
INFO: kex: client:
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
INFO: kex: client:
ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: none
INFO: kex: client: none
INFO: kex: client:
INFO: kex: client:
INFO: kex: server->client aes128-ctr hmac-md5 none
INFO: kex: client->server aes128-ctr hmac-md5 none
INFO: SSH_MSG_KEXDH_INIT sent
INFO: expecting SSH_MSG_KEXDH_REPLY
INFO: ssh_rsa_verify: signature true
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