[Twisted-Python] conch bytes/str traceback when /etc/ssh/moduli is not present
Werner Thie
werner at thieprojects.ch
Thu Mar 4 11:24:22 MST 2021
Aloha
should the case of a missing moduli file be handled more gracefully than
with a traceback or is this a bug?
I was running into this problem when installing on different OSs with
OSX and FreeBSD not having an /etc/ssh/moduli file by default.
Mahalo, Werner
2021-03-04T15:04:51+0100 [builtins.ConchSSHFactory#info] disabling
non-fixed-group key exchange algorithms because we cannot find moduli file
2021-03-04T15:04:51+0100 [builtins.ConchSSHFactory] Unhandled Error
Traceback (most recent call last):
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/python/log.py",
line 85, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/python/context.py",
line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args,
**kw)
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/python/context.py",
line 83, in callWithContext
return func(*args, **kw)
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/internet/selectreactor.py",
line 149, in _doReadOrWrite
why = getattr(selectable, method)()
--- <exception caught here> ---
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/internet/tcp.py",
line 1403, in doRead
protocol.makeConnection(transport)
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/internet/protocol.py",
line 508, in makeConnection
self.connectionMade()
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/conch/ssh/transport.py",
line 512, in connectionMade
self.sendKexInit()
File
"/Users/anon/.pyenv/versions/3.7.10/lib/python3.7/site-packages/twisted/conch/ssh/transport.py",
line 535, in sendKexInit
NS(b",".join(self.supportedPublicKeys)),
builtins.TypeError: sequence item 0: expected a bytes-like object,
str found
2021-03-04T15:04:51+0100
[twisted.conch.ssh.transport.SSHServerTransport#info] Disconnecting with
error, code 3
reason: b"couldn't match all kex parts"
2021-03-04T15:04:51+0100
[twisted.conch.ssh.transport.SSHServerTransport#info] connection lost
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