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[alpine-user] My sftp subsystem no longer works on v3.4, and i don't know what is wrong

Steffen Nurpmeso <steffen@sdaoden.eu>
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<20160820183946.jdyMIkpK3%steffen@sdaoden.eu>
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Hello!

I am on v3.4 and up-to-date, but cannot use sftp no more, the last
known successful usage was on 2nd of August.  I have changed
nothing (except updating via apk within 12 hours).

On the client side i get nothing but

  ?1[steffen@wales ]$ sftp -vvv steffen@sdaoden.eu
  OpenSSH_7.3p1, OpenSSL 1.0.2h  3 May 2016
  debug1: Reading configuration data /home/steffen/.ssh/config
  debug1: /home/steffen/.ssh/config line 3: Applying options for sdaoden.eu
  debug1: /home/steffen/.ssh/config line 35: Applying options for *
  debug1: Reading configuration data /etc/ssh/ssh_config
  debug1: auto-mux: Trying existing master
  debug2: fd 3 setting O_NONBLOCK
  debug2: mux_client_hello_exchange: master version 4
  debug3: mux_client_forwards: request forwardings: 0 local, 0 remote
  debug3: mux_client_request_session: entering
  debug3: mux_client_request_alive: entering
  debug3: mux_client_request_alive: done pid = 7208
  debug3: mux_client_request_session: session request sent
  debug1: mux_client_request_session: master session id: 2
  debug3: mux_client_read_packet: read header failed: Broken pipe
  debug2: Control master terminated unexpectedly
  Couldn't read packet: Connection reset by peer

and on the master side i get

  Aug 20 18:05:47 sshd[13419]: Received SIGHUP; restarting.
  Aug 20 18:05:47 sshd[13419]: debug1: Set /proc/self/oom_score_adj to 0
  Aug 20 18:05:47 sshd[13448]: Server listening on 0.0.0.0 port XXX.
  Aug 20 18:06:22 sshd[13448]: Received SIGHUP; restarting.
  Aug 20 18:06:22 sshd[13472]: Server listening on 0.0.0.0 port XXX.
  Aug 20 18:06:26 sshd[12808]: subsystem request for sftp by user steffen failed, subsystem not found
  Aug 20 18:11:17 sshd[13472]: Received signal 15; terminating.
  Aug 20 18:11:17 sshd[13519]: Server listening on 0.0.0.0 port XXX.
  Aug 20 18:11:36 sshd[12808]: subsystem request for sftp by user steffen failed, subsystem not found

Even if i change sftp to sftp-internal, the very same.
All paths to the sftp-server are accessible, etc.  This is
a default installation.
Thankful for any hint!

Ciao

--steffen


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Steffen Nurpmeso <steffen@sdaoden.eu>
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<20160820210238.VbNL3BR-a%steffen@sdaoden.eu>
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<20160820183946.jdyMIkpK3%steffen@sdaoden.eu> (view parent)
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i wrote:
 |I am on v3.4 and up-to-date, but cannot use sftp no more, the last
 |known successful usage was on 2nd of August.  I have changed
 |nothing (except updating via apk within 12 hours).

Just want to add that my local VM clone of the server, which
hasn't been updated to openssh-*-7.2_p2-r2 (is still at -r1) can
be accessed via sftp.

--steffen


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Steffen Nurpmeso <steffen@sdaoden.eu>
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Message ID
<20160824101940.iaX3pbNkq%steffen@sdaoden.eu>
In-Reply-To
<20160820183946.jdyMIkpK3%steffen@sdaoden.eu> (view parent)
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1472033980
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i wrote:
 |I am on v3.4 and up-to-date, but cannot use sftp no more, the last
 |known successful usage was on 2nd of August.  I have changed
 |nothing (except updating via apk within 12 hours).

  fetch http://nl.alpinelinux.org/alpine/v3.4/main/x86_64/APKINDEX.tar.gz
  v3.4.3-7-g2f47d74 [http://nl.alpinelinux.org/alpine/v3.4/main]
  OK: 5265 distinct packages available
  Installed:                                Available:
  openssh-sftp-server-7.2_p2-r2           < 7.2_p2-r3 
  openssh-client-7.2_p2-r2                < 7.2_p2-r3 
  openssh-7.2_p2-r2                       < 7.2_p2-r3 

..

  ?0[steffen@wales ]$ sftp steffen@sdaoden.eu
  Connected to sdaoden.eu.
  sftp> ^D

Thank you!

--steffen


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