Description of problem:
Can't ssh connect to machine after install new rhel7 tree(RHEL-7.0-20131002.0).
RHEL6 is ok.

Version-Release number of selected component (if applicable):


How reproducible:
always

Steps to Reproduce:
1. Reserve RHEL7 machine use RHEL-7.0-20131002.0
2. Use ssh to connect this machine
3. Can't connect
$ssh root.eng.nay.redhat.com
Read from socket failed: Connection reset by peer

Actual results:
connect failed.

Expected results:
connect successful.

Additional info:
In console:
[root@ibm-x3550m3-01 ~]# /usr/sbin/sshd -D
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.
bad permissions: ignore key: /etc/ssh/ssh_host_rsa_key

`#chmod 600 /etc/ssh/ssh_host_rsa_key` before ssh connect successful.