[Fab-user] EOF during negotiation error

Hi,

I'm pretty new to Fabric and am trying to write a simple fab utility that uploads a zip file to a remote machine and unzips it. Unfortunately I am getting inconsistent errors when I run.

I have tried a couple of different options and get two different errors as a result. However, in either case if I comment out the put() operation then everything else works okay. In additional tests it seems I can call run() as many times as I want, so long as there isn't a put() in the chain.

Test 1:

def uploadScripts():

put('scripts.zip')

run("unzip -o scripts.zip -d scripts", shell=True)

Results in the following out:

[localhost] Executing task 'uploadScripts'

Packing up scripts...

Uploading scripts to remote host...

[localhost] Login password for 'jpsteinmetz':

[localhost] put: c:\users\jpstei~1\appdata\local\temp\tmpglolrt\scripts.zip -> /home/jpsteinmetz/scripts.zip

Unpacking scripts on remote host...

[localhost] run: unzip -o scripts.zip -d scripts

Fatal error: run() received nonzero return code 255 while executing!

Requested: unzip -o scripts.zip -d scripts

Executed: /bin/bash -l -c "unzip -o scripts.zip -d scripts"

Aborting.

Disconnecting from localhost... done.

If I add an additional line before the put() operation to remove an existing scripts.zip on the remote host...

def uploadScripts():

run("rm -f scripts.zip", shell=True)

put('scripts.zip')

run("unzip -o scripts.zip -d scripts", shell=True)

Then I get the following error (I've turned on debug logging for additional information).

[localhost] Executing task 'uploadScripts'

Removing old scripts...

[localhost] run: rm -f scripts.zip

DEBUG:paramiko.transport:starting thread (client mode): 0x3556e48L

INFO:paramiko.transport:Connected (version 2.0, client OpenSSH_6.6.1)

DEBUG:paramiko.transport:kex algos:[u'address@hidden', u'ecdh-sha2-nistp256', u'ecdh-sha2-nistp384', u'ecdh-sha2-nistp521', u'diffie-hellman-group-exchange-sha256', u'diffie-hellman-group-exchange-sha1', u'diffie-hellman-group14-sha1', u'diffie-hellman-group1-sha1'] server key:[u'ssh-rsa', u'ssh-dss', u'ecdsa-sha2-nistp256', u'ssh-ed25519'] client encrypt:[u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'arcfour256', u'arcfour128', u'address@hidden', u'address@hidden', u'address@hidden', u'aes128-cbc', u'3des-cbc', u'blowfish-cbc', u'cast128-cbc', u'aes192-cbc', u'aes256-cbc', u'arcfour', u'address@hidden'] server encrypt:[u'aes128-ctr', u'aes192-ctr', u'aes256-ctr', u'arcfour256', u'arcfour128', u'address@hidden', u'address@hidden', u'address@hidden', u'aes128-cbc', u'3des-cbc', u'blowfish-cbc', u'cast128-cbc', u'aes192-cbc', u'aes256-cbc', u'arcfour', u'address@hidden'] client mac:[u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'hmac-md5', u'hmac-sha1', u'address@hidden', u'address@hidden', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-ripemd160', u'address@hidden', u'hmac-sha1-96', u'hmac-md5-96'] server mac:[u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'address@hidden', u'hmac-md5', u'hmac-sha1', u'address@hidden', u'address@hidden', u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-ripemd160', u'address@hidden', u'hmac-sha1-96', u'hmac-md5-96'] client compress:[u'none', u'address@hidden'] server compress:[u'none', u'address@hidden'] client lang:[u''] server lang:[u''] kex follows?False

DEBUG:paramiko.transport:Ciphers agreed: local=aes128-ctr, remote=aes128-ctr

DEBUG:paramiko.transport:using kex diffie-hellman-group1-sha1; server key type ssh-rsa; cipher: local aes128-ctr, remote aes128-ctr; mac: local hmac-s

ha1, remote hmac-sha1; compression: local none, remote none

DEBUG:paramiko.transport:Switch to new keys ...

DEBUG:paramiko.transport:Adding ssh-rsa host key for localhost: 493071a6f3998a5536c903aeb86ab7b8

[localhost] Login password for 'jpsteinmetz':

DEBUG:paramiko.transport:starting thread (client mode): 0x35f8a90L

INFO:paramiko.transport:Connected (version 2.0, client OpenSSH_6.6.1)

DEBUG:paramiko.transport:Ciphers agreed: local=aes128-ctr, remote=aes128-ctr

DEBUG:paramiko.transport:using kex diffie-hellman-group1-sha1; server key type ssh-rsa; cipher: local aes128-ctr, remote aes128-ctr; mac: local hmac-sha1, remote hmac-sha1; compression: local none, remote none

DEBUG:paramiko.transport:Switch to new keys ...

DEBUG:paramiko.transport:userauth is OK

INFO:paramiko.transport:Authentication (password) successful!

DEBUG:paramiko.transport:[chan 1] Max packet in: 34816 bytes

DEBUG:paramiko.transport:[chan 1] Max packet out: 32768 bytes

INFO:paramiko.transport:Secsh channel 1 opened.

DEBUG:paramiko.transport:[chan 1] Sesch channel 1 request ok

DEBUG:paramiko.transport:[chan 1] EOF received (1)

DEBUG:paramiko.transport:[chan 1] EOF sent (1)

Packing up scripts...

Uploading scripts to remote host...

DEBUG:paramiko.transport:[chan 2] Max packet in: 34816 bytes

DEBUG:paramiko.transport:[chan 2] Max packet out: 32768 bytes

INFO:paramiko.transport:Secsh channel 2 opened.

DEBUG:paramiko.transport:[chan 2] Sesch channel 2 request ok

Traceback (most recent call last):

DEBUG:paramiko.transport:[chan 2] EOF received (2)

File "C:\Python27\lib\site-packages\fabric\main.py", line 743, in main

*args, **kwargs

File "C:\Python27\lib\site-packages\fabric\tasks.py", line 372, in execute

multiprocessing

File "C:\Python27\lib\site-packages\fabric\tasks.py", line 267, in _execute

return task.run(*args, **kwargs)

File "C:\Python27\lib\site-packages\fabric\tasks.py", line 174, in run

return self.wrapped(*args, **kwargs)

File "D:\tools\python\fabfile.py", line 40, in uploadScripts

if (put(os.path.join(tempDir, 'scripts.zip')).succeeded == False):

File "C:\Python27\lib\site-packages\fabric\network.py", line 639, in host_prompting_wrapper

DEBUG:paramiko.transport:[chan 2] EOF sent (2)

return func(*args, **kwargs)

File "C:\Python27\lib\site-packages\fabric\operations.py", line 346, in put

ftp = SFTP(env.host_string)

File "C:\Python27\lib\site-packages\fabric\sftp.py", line 30, in __init__

self.ftp = connections[host_string].open_sftp()

File "C:\Python27\lib\site-packages\paramiko\client.py", line 345, in open_sftp

return self._transport.open_sftp_client()

File "C:\Python27\lib\site-packages\paramiko\transport.py", line 717, in open_sftp_client

return SFTPClient.from_transport(self)

File "C:\Python27\lib\site-packages\paramiko\sftp_client.py", line 114, in from_transport

return cls(chan)

File "C:\Python27\lib\site-packages\paramiko\sftp_client.py", line 98, in __init__

raise SSHException('EOF during negotiation')

paramiko.ssh_exception.SSHException: EOF during negotiation

Disconnecting from localhost... DEBUG:paramiko.transport:EOF in transport thread

done.

DEBUG:paramiko.transport:EOF in transport thread

I am running Windows 7 with Python 2.7.8 and the following packages:

boto (2.31.1)

ecdsa (0.11)

Fabric (1.9.0)

paramiko (1.14.0)

pip (1.5.6)

pycrypto (2.6)

pywin32 (219)

setuptools (3.8.1)

The SSH server is OpenSSH 6.6.1p1-3 running through cygwin (64-bit). SSH itself seems to run just fine as I can putty into it without any problems and can also use psftp to upload the same zip file.

Any insight into why this might be happening is greatly appreciated.

Cheers,

Jean-Philippe Steinmetz

From:	Steinmetz, Jean-Philippe
Subject:	[Fab-user] EOF during negotiation error
Date:	Fri, 1 Aug 2014 18:08:22 -0700