[Portable OpenSSH] hang up during login after OpenSSH 7.3 upgrade

Darren Tucker dtucker at zip.com.au
Wed Aug 17 14:06:42 AEST 2016

On Wed, Aug 17, 2016 at 1:29 PM, Enrico Mioso <mrkiko.rs at gmail.com> wrote:
> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
> <hangs here>

Smells like a path MTU black hole.  See
http://www.snailbook.com/faq/mtu-mismatch.auto.html for some

> But dbclient (from Dropbear) works instead with the same setup (and server),
> asking me the password as expected.

dbclient supports fewer algorithms and its network traffic is
correspondingly smaller, which makes it less likely to trip the
threshold (same for older opensshs).

Darren Tucker (dtucker at zip.com.au)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA (new)
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.

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