diff -up openssh-7.4p1/servconf.c.permit-root openssh-7.4p1/servconf.c

--- openssh-7.4p1/servconf.c.permit-root	2017-02-10 10:27:18.109487568 +0100

+++ openssh-7.4p1/servconf.c	2017-02-10 10:28:12.385776132 +0100

@@ -231,7 +231,7 @@ fill_default_server_options(ServerOption

 	if (options->login_grace_time == -1)

 		options->login_grace_time = 120;

 	if (options->permit_root_login == PERMIT_NOT_SET)

-		options->permit_root_login = PERMIT_NO_PASSWD;

+		options->permit_root_login = PERMIT_YES;

 	if (options->ignore_rhosts == -1)

 		options->ignore_rhosts = 1;

 	if (options->ignore_user_known_hosts == -1)

diff -up openssh-7.4p1/sshd_config.5.permit-root openssh-7.4p1/sshd_config.5

--- openssh-7.4p1/sshd_config.5.permit-root	2017-02-10 10:28:24.174605582 +0100

+++ openssh-7.4p1/sshd_config.5	2017-02-10 10:28:42.254344023 +0100

@@ -1227,7 +1227,7 @@ The argument must be

 or

 .Cm no .

 The default is

-.Cm prohibit-password .

+.Cm yes .

 .Pp

 If this option is set to

 .Cm prohibit-password

diff -up openssh-7.4p1/sshd_config.permit-root openssh-7.4p1/sshd_config

--- openssh-7.4p1/sshd_config.permit-root	2017-02-10 10:26:52.256797645 +0100

+++ openssh-7.4p1/sshd_config	2017-02-10 10:26:52.276797405 +0100

@@ -35,7 +35,7 @@ SyslogFacility AUTHPRIV

 # Authentication:

 #LoginGraceTime 2m

-#PermitRootLogin prohibit-password

+#PermitRootLogin yes

 #StrictModes yes

 #MaxAuthTries 6

 #MaxSessions 10