[Samba] AD DC eventually not browsable without restart
Ricky Nance
ricky.nance at gmail.com
Fri Sep 6 11:46:13 MDT 2013
Next time its unresponsive, try hitting it with \\ip.to.new.dc and see if
its browsable, also get the output of netstat -anp | grep "samba\|smbd" as
well as tail -n 50 /usr/local/samba/var/log.samba and tail -n 50
usr/local/samba/var/log.smbd (adjust the path as needed), also I am
interested if top has anything to say about samba or smbd (as for processor
and memory usage).
Ricky
On Fri, Sep 6, 2013 at 12:12 PM, Kevin Field <kev at brantaero.com> wrote:
> Yep, that's exactly it. Thanks!
>
> Kev
>
>
> On 2013-09-06 10:16 AM, Ricky Nance wrote:
>
>> Have you disabled syslinux? That is what that change looks like to me.
>>
>> Ricky
>>
>>
>> On Thu, Sep 5, 2013 at 3:26 PM, Kevin Field <kev at brantaero.com
>> <mailto:kev at brantaero.com>> wrote:
>>
>> I just noticed something interesting, since I have /etc under
>> version control: /etc/mtab changed thusly:
>>
>> -tmpfs /dev/shm tmpfs
>> rw,rootcontext="system_u:__**object_r:tmpfs_t:s0" 0 0
>>
>> +tmpfs /dev/shm tmpfs rw 0 0
>>
>> Does this mean anything to our troubleshooting?
>>
>> Thanks,
>> Kev
>>
>>
>> On 2013-09-04 2:02 PM, Kevin Field wrote:
>>
>> Yeah, it's still
>>
>> tmpfs 5.9G 0 5.9G 0% /dev/shm
>>
>> The really odd thing is, currently, it's telling me this if I try
>> to
>> access it from OLDDC, running Windows Server 2003. But if I
>> remote into
>> another computer (GEYSER) on the network that's running Windows
>> XP, I
>> can access \\NEWDC just fine. Back to OLDDC and it still
>> doesn't work.
>>
>> Besides the OS I noticed another difference, running "echo
>> %logonserver%" from GEYSER, it reports \\G5, whereas running that
>> on
>> OLDDC reports \\OLDDC. I know this is normal behaviour, but I
>> wonder if
>> it has anything to do with it. I also wonder if, if I leave
>> GEYSER
>> logged in long enough, I'll have the same result on it as I do
>> on OLDDC.
>>
>> So nobody else is having this browsability problem, eh?
>>
>> Kev
>>
>> On 2013-08-24 1:41 PM, Kevin Field wrote:
>>
>> Hmm...it hasn't been long enough since a restart yet,
>> because it's not
>> doing it ATM, but nonetheless if it's a question of an extra
>> 45 mb I
>> think we have it covered:
>>
>> tmpfs 5.9G 0 5.9G 0% /dev/shm
>>
>> But I'll check anyway next opportunity and report back if
>> it's a
>> positive.
>>
>> Kev
>>
>> On 2013-08-24 11:51 AM, Ricky Nance wrote:
>>
>> I wonder if your hitting the /run/lock fill up that
>> another user
>> reported on a week or two ago (they are using ubuntu). I
>> think the
>> solution was to make that tmpfs partition bigger (like
>> 50 mb instead of
>> 5 mb). next time it is unresponsive check and see what
>> the output of 'df
>> -h' is.
>>
>> Ricky
>>
>>
>> On Sat, Aug 24, 2013 at 10:02 AM, Kevin Field
>> <kev at brantaero.com <mailto:kev at brantaero.com>
>> <mailto:kev at brantaero.com <mailto:kev at brantaero.com>>>
>>
>> wrote:
>>
>> I've upgraded to 4.0.9 and this behaviour persists.
>>
>> Should I file a bug report, do you think? �Is
>> nobody else
>> experiencing this?
>>
>> Thanks,
>>
>> Kev
>>
>> 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<https://bugzilla.samba.org/____show_bug.cgi?id=9820>
>> <https://bugzilla.samba.org/__**show_bug.cgi?id=9820<https://bugzilla.samba.org/__show_bug.cgi?id=9820>
>> >
>>
>> <https://bugzilla.samba.org/__**show_bug.cgi?id=9820<https://bugzilla.samba.org/__show_bug.cgi?id=9820>
>> <https://bugzilla.samba.org/**show_bug.cgi?id=9820<https://bugzilla.samba.org/show_bug.cgi?id=9820>
>> >>
>>
>>
>>
>>
>> ------------------------------**
>> ____--------------------------**--__--__------------
>>
>>
>>
>>
>> *From: *"Kevin Field" <kev at brantaero.com
>> <mailto:kev at brantaero.com>
>> <mailto:kev at brantaero.com <mailto:kev at brantaero.com>>>
>> *To: *samba at lists.samba.org
>> <mailto:samba at lists.samba.org>
>> <mailto:samba at lists.samba.org
>>
>> <mailto: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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