DNS results:
nslookup mylaptop
;; Got SERVFAIL reply from 10.1.10.3, trying next server
Server: 10.1.10.4
Address: 10.1.10.4#53
** server can't find mylaptop: SERVFAIL
nslookup mylaptop.mydomain.com
Server: 10.1.10.3
Address: 10.1.10.3#53
** server can't find mylaptop.mydomain.com: NXDOMAIN
I checked DNS and DHCP on the PDC back when this first happened and the proper
entries are still in place. Here’s what any other machine on the network looks
like:
nslookup another-pc
Server: 10.1.10.3
Address: 10.1.10.3#53
Name: another-pc.mydomain.com
Address: 10.1.10.195
The one unusual thing I can think of is that over the summer this laptop had a
boot drive fail, so I had to wipe it and reinstall Win10. Maybe somehow that
resulted in “two machines” sharing the same MAC address? I don’t know.
smbclient -U user%pass -L //mylaptop
OS=[Windows 10 Home 15063] Server=[Windows 10 Home 6.3]
Sharename Type Comment
--------- ---- -------
ADMIN$ Disk Remote Admin
C$ Disk Default share
Canon iR-ADV C5030C5035 Class Driver Printer Canon iR-ADV C5030/C5035
Class Driver
D$ Disk Default share
IPC$ IPC Remote IPC
print$ Disk Printer Drivers
Users Disk
OS=[Windows 10 Home 15063] Server=[Windows 10 Home 6.3]
Server Comment
--------- -------
Workgroup Master
Thanks for your help!
Sent from Mail for Windows 10
From: Bzzzz
Sent: Thursday, October 26, 2017 3:53 PM
To: [email protected]
Subject: Re: [BackupPC-users] Phantom host
On Thu, 26 Oct 2017 15:34:38 -0700
Ethan Tarr <[email protected]> wrote:
> Finally had a few minutes this afternoon to sort some lists of MAC
> addresses, and I couldn’t find any duplicates. This is very
> mysterious. Not a huge problem, but annoying.
Ok, from the server, can you test what is the answer of:
* a DNS request (I suppose your machines use their regular DNS names when
resolving to NETBIOS)
$ nslookup mymachineicantreach
* a SMB listing request?
$ smbclient -Umyuser%mypassword -L //mymachinename
JY
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