[Samba] The RPC server is unavailable

Rowland Penny rowlandpenny at googlemail.com
Thu Mar 19 07:12:02 MDT 2015


On 19/03/15 12:48, Jesper Koivumäki wrote:
>> On 18/03/15 17:56, Jesper Koivumäki wrote:
>>> /  Hi,
> />>/
> />>/  I'm running a samba 4.2 server on RedHat5 and for some reason I 
> can't
> />>/  seem to logon using the AD Users and Computers -tool.
> />>/
> />>/  Whenever I try to connect to the PDC I get the following error:
> />>/
> />>/  "The following Domain Controller could not be contacted: <name of
> />>/  pdc>. The RPC server is unavailable."
> />>/
> />>/  I've checked for any possible firewall issues, but even with all
> />>/  firewalls turned off in between them, I still get the same error 
> message.
> />>/
> />>/  I've also noticed I cannot access the server with the Administrator
> />>/  account over the network. When using smbclient I get
> />>/  NT_STATUS_INVALID_SID and if I try to connect as Administrator 
> with a
> />>/  Windows 7 workstation, I just get a time out ("Error code: 
> 0x80004005
> />>/  Unspecified error).
> />>/
> />>/  samba-tool works without a hitch, as do a number of other tools 
> like
> />>/  ldbedit and wbinfo.
> />>/
> />>/
> />>/  I've followed the instructions by Rowland Penny I found in the
> />>/  archives for this mailing list:
> />>/
> />>/ 
> http://samba.2283325.n4.nabble.com/Administrators-SID-is-invalid-td4674430.html 
> />>/
> />>/
> />>/  But I just can't get the Administrator account to work. The same 
> error
> />>/  has now also started propagating to some of my test accounts as 
> well
> />>/  as my own main account.
> />>/
> />>/  mots might've fixed this by installing 4.1.0, but I have yet to try
> />>/  that. I figured I'd want to solve this with the current stable 
> release.
> />>/
> />>/  Anybody got any suggestions on how to tackle this?
> />>/
> />
>> WOW, fame at last, I got quoted :-D
>>
>> Where did you get samba4 from ?
>>
>> Can you post your smb.conf
>>
>> Rowland
>
>
> Hello,
>
> My mailinglist-Fu is clearly lacking, since I didn't get your message 
> sent to my inbox. Sorry about that.
>
> I'm running the 4.2 that is currently linked on samba.org.
>
> My smb.conf:
>
> # Global parameters
> [global]
>         workgroup = DOMAIN
>         realm = FANCYDOMAINNAME.ORG
>         netbios name = MEGATRON
>         server role = active directory domain controller
>         dns forwarder = <ISP DNS server>
>
> [netlogon]
>     path = /mnt/Netshares/Logonscripts
>     read only = No
>
> [sysvol]
>     path = /usr/local/samba/var/locks/sysvol
>     read only = No
>
> [nethome]
>     path = /mnt/Netusers/Nethome
>     read only = No
>

OK, what is the results from the following two commands:

samba-tool testparm --suppress-prompt -v | grep '[s]erver services'

samba-tool testparm --suppress-prompt -v | grep '[d]cerpc endpoint servers'

Rowland



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