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Date: Sun, 7 Jun 2015 17:46:53 +0000 (UTC)
From: Marilo <narium85-mlscar@yahoo.co.uk>
Reply-To: Marilo <narium85-mlscar@yahoo.co.uk>
To: "cygwin@cygwin.com" <cygwin@cygwin.com>
Message-ID: <2110086719.10597039.1433699213769.JavaMail.yahoo@mail.yahoo.com>
Subject: can't change a file's permissions  + some ssh
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after some fiddling with ssh.. removing the service, removing keys, re-running ssh-host-config, I got this error 

harvey@samsung350 ~ 
$ tail /var/log/sshd.log 
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @ 
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 
Permissions 0670 for '/etc/ssh_host_ed25519_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_host_ed25519_key 
Could not load host key: /etc/ssh_host_ed25519_key 
Disabling protocol version 2. Could not load host key 
sshd: no hostkeys available -- exiting.


So I tried changing the file's permissions but I can't seem to change them

harvey@samsung350 ~ 
$ ls -l /etc/ssh_host_ed25519_key 
-rw-rwx---+ 1 cyg_server root 411 Jun  7 17:23 /etc/ssh_host_ed25519_key 

harvey@samsung350 ~ 
$ chmod 600 /etc/ssh_* 

harvey@samsung350 ~ 
$ ls -l /etc/ssh_host_ed25519_key 
-rw-rwx---+ 1 cyg_server root 411 Jun  7 17:23 /etc/ssh_host_ed25519_key 

harvey@samsung350 ~ 
$ 


I can run 
$ echo asdf>c:\fffdfs   So I do have administrative permissions.

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