I updated teuthology yesterday and since then have seen a log of the following errors ...src/teuthology/virtualenv/local/lib/python2.7/site-packages/paramiko/ecdsakey.py:164: CryptographyDeprecationWarning: Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_point self.ecdsa_curve.curve_class(), pointinfo 2019-07-31 01:45:18,976.976 ERROR:paramiko.transport:Exception: Error reading SSH protocol banner 2019-07-31 01:45:18,976.976 ERROR:paramiko.transport:Traceback (most recent call last): 2019-07-31 01:45:18,976.976 ERROR:paramiko.transport: File "/home/bhubbard/src/teuthology/virtualenv/local/lib/python2.7/site-packages/paramiko/transport.py", line 1966, in run 2019-07-31 01:45:18,976.976 ERROR:paramiko.transport: self._check_banner() 2019-07-31 01:45:18,977.977 ERROR:paramiko.transport: File "/home/bhubbard/src/teuthology/virtualenv/local/lib/python2.7/site-packages/paramiko/transport.py", line 2143, in _check_banner 2019-07-31 01:45:18,977.977 ERROR:paramiko.transport: "Error reading SSH protocol banner" + str(e) 2019-07-31 01:45:18,977.977 ERROR:paramiko.transport:SSHException: Error reading SSH protocol banner Sometimes these are fatal and sometimes not. Wondering if anyone else has seen them? -- Cheers, Brad