[Samba] AD DC eventually not browsable without restart

Kevin Field kev at brantaero.com
Tue Aug 20 09:52:26 MDT 2013


Thanks for the lead!  The discussion there is a bit beyond me ATM but 
I'll try a `wbinfo -g` next time it stops working and see whether it's 
crashed or what.  -K

On 2013-08-20 11:40 AM, Kristofer Pettijohn wrote:
> You may want to see if it is this bug, which is fixed in 4.0.9:
> https://bugzilla.samba.org/show_bug.cgi?id=9820
>
>
>
> ------------------------------------------------------------------------
> *From: *"Kevin Field" <kev at brantaero.com>
> *To: *samba at lists.samba.org
> *Sent: *Tuesday, August 20, 2013 9:38:32 AM
> *Subject: *[Samba] AD DC eventually not browsable without restart
>
> I have a SerNet Samba 4.0.8 AD DC running on CentOS 6.4 (newdc)
> replicating from a W2K3 DC (olddc).  When I first launch Samba using
> `sudo samba`, I can go to the Windows server and browse to \\newdc in
> Explorer, and I see mytestshare, netlogon, printers, sysvol, and
> "Printers and Faxes".
>
> After a while (I'm not sure how long precisely, but under 24 hours) I
> could not navigate to \\newdc without the following error:
>
> ---------------------------
> \\newdc
> ---------------------------
> \\newdc is not accessible. You might not have permission to use this
> network resource. Contact the administrator of this server to find out
> if you have access permissions.
>
> The Server service is not started.
> ---------------------------
> OK
> ---------------------------
>
> But in the interim, I had not been doing anything in the system, so I'm
> not sure what might have caused it.  One time it even happened on a
> weekend when no backup or anything particularly special is scheduled
> while I was away.
>
> Anyway, running `sudo killall samba` and then `sudo samba` makes it
> suddenly browsable again.
>
> This is happening every day.  I guess it would be best to figure this
> problem out before we make Samba the only DC.
>
> Here's my smb.conf, mostly set up by samba-tool, and now a work in
> progress to add the extras we will use:
>
> # Global parameters
> [global]
>           workgroup = MYDOMAIN
>           realm = mydomain.lan
>           netbios name = NEWDC
>           server role = active directory domain controller
>           server services = rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
> winbind, ntp_signd, kcc, dnsupdate, smb, dns
>           allow dns updates = true
>           dns forwarder = 192.168.1.1
> #        dns recursive queries = yes
>           dcerpc endpoint servers = epmapper, wkssvc, rpcecho, samr,
> netlogon, lsarpc, spoolss, drsuapi, dssetup, unixinfo, browser,
> eventlog6, backupkey, dnsserver, winreg, srvsvc
> #       dcerpc endpoint servers = winreg srvsvc
>           load printers = yes
>           printing = cups
>
> [netlogon]
>           path = /var/lib/samba/sysvol/mydomain.lan/scripts
>           read only = No
>
> [sysvol]
>           path = /var/lib/samba/sysvol
>           read only = No
>
> [printers]
>        comment = All Printers
>        path = /var/spool/samba
>        browseable = Yes
>        read only = No
>        printable = Yes
>
> [print$]
>        comment = Point and Print Printer Drivers
>        path = /var/lib/samba/printing
>        read only = No
>
> [mytestshare]
>           path = /srv/mytestshare/
>           read only = No
>
>
> Any ideas?
>
> Thanks,
> Kev
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