Re: weird transfer-source problems with one DNS node

2016-07-19 Thread Phil Mayers
Yep, that's it. The MASQ entry will nat all outbound traffic to the primary IP of the interface. If you want to be playing with secondary IPs this is almost certainly not right. -- Sent from my mobile device, please excuse brevity and typos___ Please v

Re: weird transfer-source problems with one DNS node

2016-07-19 Thread Ian Veach
Thank you, Phil - that might be the answer. I'm not super knowledgeable about iptables, and I certainly didn't configure it this way (specifically), but the one problematic node does seem to have a postrouting chain. I'll have to investigate how this came about and how to remove, but perhaps this

Re: weird transfer-source problems with one DNS node

2016-07-19 Thread Phil Mayers
On 19/07/16 00:38, Ian Veach wrote: Negative Ghostrider...: [root@foo:~]# iptables -t raw -nvL Might want to check "-t nat" as well. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailin

Re: weird transfer-source problems with one DNS node

2016-07-18 Thread Ian Veach
> From: bind-users [mailto:bind-users-boun...@lists.isc.org] On Behalf Of > Ian Veach > Sent: Tuesday, 19 July 2016 8:09 AM > To: Barry Margolin; comp-protocols-dns-b...@isc.org > Subject: Re: weird transfer-source problems with one DNS node > > >

Re: weird transfer-source problems with one DNS node

2016-07-18 Thread Ian Veach
t; device > > Thanks! > > Sent via the Samsung Galaxy NoteĀ® 4, an AT&T 4G LTE smartphone > > > Original message > From: Barry Margolin > Date: 07/18/2016 12:12 (GMT-08:00) > To: comp-protocols-dns-b...@isc.org > Subject: Re: weird transfe

Re: weird transfer-source problems with one DNS node

2016-07-18 Thread Barry Margolin
In article , Ian Veach wrote: > So unless I'm crazy (possible, regardless)... named is reporting using 230, > but OS is showing 240 (and remote host logs confirm 240)!? Could something in iptables be transforming it at a lower level? -- Barry Margolin Arlington, MA ___

Re: weird transfer-source problems with one DNS node

2016-07-18 Thread Ian Veach
Der, sorry. Machines are all RHEL 6.8, running the BIND provided by RH: 9.8.2rc1-RedHat-9.8.2-0.47.rc1.el6 Restarting BIND (or even the OS) doesn't seem to change anything. I don't seem to have scan as an option for rndc. I assume it's in a newer version that RH doesn't yet provide for RHEL 6.

Re: weird transfer-source problems with one DNS node

2016-07-18 Thread Tony Finch
Ian Veach wrote: > > So, any ideas on why I would see that slave initiate transfers on it's OS > IP versus the transfer-source IP... especially when the other three work > fine? What does the log say about interface addresses? Which version of BIND are you running? Has the xfer interface been rec

weird transfer-source problems with one DNS node

2016-07-18 Thread Ian Veach
I'm having a weird problem where one of our DNS servers is not communicating on the expected transfer-source IPs (but the rest are). They're generally configured exact/similar, but there's obviously something causing a difference on the one node. We run four slave DNS as public NS (with private ma