ENH: clean up ssh connection log messages and force only password tries

pmpsdb_client/cli/__init__.py

@@ -53,6 +53,9 @@ def _main(args: argparse.Namespace) -> int:
             level=logging.INFO,
             format='%(levelname)s: %(message)s',
         )
+        # Noisy log messages from ssh transport layer
+        for module in ("fabric", "paramiko", "intake"):
+            logging.getLogger(module).setLevel(logging.WARNING)
     if args.export_dir:
         from ..export_data import set_export_dir
         set_export_dir(args.export_dir)

pmpsdb_client/ssh_data.py

@@ -14,13 +14,22 @@
 from typing import Iterator, TypeVar
 
 from fabric import Connection
+from fabric.config import Config
+from paramiko.config import SSHConfig
 
 logger = logging.getLogger(__name__)
 
 DEFAULT_PW = (
     ("ecs-user", "1"),
 )
 DIRECTORY = "/home/{user}/pmpsdb"
+SSH_CONFIG = """
+Host *
+    ForwardAgent no
+    ForwardX11 no
+    ForwardX11Trusted no
+    PreferredAuthentications=password
+"""
 
 T = TypeVar("T")
 
@@ -43,7 +52,11 @@ def ssh(
         with Connection(
             host=hostname,
             user=user,
-            connect_kwargs={"password": pw}
+            config=Config(ssh_config=SSHConfig.from_text(SSH_CONFIG)),
+            connect_kwargs={
+                "password": pw,
+                "allow_agent": False,
+            },
         ) as conn:
             try:
                 conn.open()