Fix bug: SSH module didn't send identification string while checking if remote host is avilable (fixes bit-team#1030)

Author: Germar

CHANGES

@@ -1,5 +1,8 @@
 Back In Time
 
+Version 1.3.0
+* Fix bug: SSH module didn't send identification string while checking if remote host is avilable (https://github.com/bit-team/backintime/issues/1030)
+
 Version 1.2.0
 * Fix bug: Exit code is linked to the wrong status message (https://github.com/bit-team/backintime/issues/906)
 * minor changes to allow running BiT inside Docker (https://github.com/bit-team/backintime/pull/959)

common/sshtools.py

@@ -492,11 +492,13 @@ def checkPingHost(self):
         if not self.config.sshCheckPingHost(self.profile_id):
             return
         logger.debug('Check ping host', self)
+        versionString = 'SSH-2.0-backintime_{}\r\n'.format(self.config.VERSION).encode()
         count = 0
         while count < 5:
             try:
                 with socket.create_connection((self.host, self.port), 2.0) as s:
                     result = s.connect_ex(s.getpeername())
+                    s.sendall(versionString)
             except:
                 result = -1
             if result == 0: