CIFS Mount error (112) Mounting Win2012r2 share on Ubuntu 16.04

mardi 9 août 2016

Hi guys!

I've spent the last 4 hours tearing my hair out over something I have done in some capacity over and over again for years: mounting windows shares.

I'm attempting to use fstab to do this, here is my fstab line:

Code:

//192.168.1.201/netstore  /netstore  cifs  guest,uid=1000,iocharset=utf8  0  0

So pretty simple right? I have a folder in root called "netstore", there's no password on the samba share.

The Windows 2012R2 box is a domain controller for a domain. A windows 7 box NOT on the domain can open the share with no problem.

Some troubleshooting now:

Both port 445 and 139 are open on the Windows 2012 box for the ubuntu box:

Code:

ashley@tayles-cs:~$ telnet 192.168.1.201 445
Trying 192.168.1.201...
Connected to 192.168.1.201.
Escape character is '^]'.

ashley@tayles-cs:~$ telnet 192.168.1.201 139
Trying 192.168.1.201...
Connected to 192.168.1.201.
Escape character is '^]'.

And to make doubly sure there is full connectivity:

Code:

ashley@tayles-cs:~$ ping 192.168.1.201
PING 192.168.1.201 (192.168.1.201) 56(84) bytes of data.
64 bytes from 192.168.1.201: icmp_seq=1 ttl=128 time=0.178 ms
64 bytes from 192.168.1.201: icmp_seq=2 ttl=128 time=0.181 ms
64 bytes from 192.168.1.201: icmp_seq=3 ttl=128 time=0.125 ms
64 bytes from 192.168.1.201: icmp_seq=4 ttl=128 time=0.173 ms
64 bytes from 192.168.1.201: icmp_seq=5 ttl=128 time=0.165 ms
64 bytes from 192.168.1.201: icmp_seq=6 ttl=128 time=0.141 ms
^C
--- 192.168.1.201 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 4997ms
rtt min/avg/max/mdev = 0.125/0.160/0.181/0.024 ms

I've tried using the NETBIOS AND the FQDN in the FSTAB with exactly the same results.

Trying to connect using smbclient:

Code:

ashley@tayles-cs:~$ smbclient //192.168.1.201/netstore -U guest
WARNING: The "syslog" option is deprecated
Enter guest's password:
protocol negotiation failed: NT_STATUS_CONNECTION_RESET

ashley@tayles-cs:~$ smbclient //192.168.1.201/netstore -U ashley
WARNING: The "syslog" option is deprecated
Enter ashley's password:
protocol negotiation failed: NT_STATUS_CONNECTION_RESET

ashley@tayles-cs:~$ sudo smbclient //192.168.1.201/netstore -U ashley
WARNING: The "syslog" option is deprecated
Enter ashley's password:
protocol negotiation failed: NT_STATUS_CONNECTION_RESET

I've checked the Window Event Viewer and there are NO attempted connections from the Ubuntu box. If I use my windows 7 pc and try to connect using bad creds, I get failed attempted logs, so I would expect the same if Ubuntu was failing to connect?

Anyone got any ideas? I have run out of things to Google lol. If you want more output just shout!