Fix remote host ssh access

But we have an error syncing:
"Contacting server...\nConnected
[//ThomasMacBook.local//Users/thomas/Quviq/Development/fileshare/test
-> //ubuntu//home/thomas/test]\nLooking for changes\nFatal error:
Warning: inconsistent state.  \nThe archive file is missing on some
hosts.\nFor safety, the remaining copies should be deleted.\n  Archive
arc20c470706d84d5762ce72d07537eccf on host ThomasMacBook.local is
MISSING\n  Archive ar8506d63b58671d34fee275f4e1a3846b on host ubuntu
should be DELETED\nPlease delete archive files as appropriate and try
again\nor invoke Unison with -ignorearchives flag.\n"
Ignore all in test directory