Discussion:
What if the link is failed between master/slave
Blason R
2018-06-29 16:53:07 UTC
Permalink
Hi There,

I have bind Master server with me and slave is at other remote location. My
query is since I have opted for PUSH update from master to slave over
random port.

What if the link at slave is down and NOTFY message is not reached? When
will slave then pull the update?

Lets take an example

12.05 I updated the zone and reload it
12.06 xfer.out shows the update is sent but Internet link at slave is down.
Link is back at 12.20.
When will then slave receive update?
w***@e1b.org
2018-06-29 17:00:03 UTC
Permalink
--
William Brown
Messaging Team
Technology Services, WNYRIC, Erie 1 BOCES
(716) 821-7285
Post by Blason R
I have bind Master server with me and slave is at other remote
location. My query is since I have opted for PUSH update from master
to slave over random port.
What if the link at slave is down and NOTFY message is not reached?
When will slave then pull the update?
Yes, according to the refresh interval in the SOA record. The pertinent
values are REFRESH, RETRY and EXPIRE. See section 3.3.13 of RFC1035
https://tools.ietf.org/html/rfc1035#page-19




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Blason R
2018-06-29 17:05:07 UTC
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OK - Got it so is there any settings available at master by which it will
keep on probing slave and as soon it is contacted NOTIFY Message is sent.
Post by w***@e1b.org
--
William Brown
Messaging Team
Technology Services, WNYRIC, Erie 1 BOCES
(716) 821-7285
Post by Blason R
I have bind Master server with me and slave is at other remote
location. My query is since I have opted for PUSH update from master
to slave over random port.
What if the link at slave is down and NOTFY message is not reached?
When will slave then pull the update?
Yes, according to the refresh interval in the SOA record. The pertinent
values are REFRESH, RETRY and EXPIRE. See section 3.3.13 of RFC1035
https://tools.ietf.org/html/rfc1035#page-19
This electronic message and any attachments may contain confidential or
privileged information, and is intended only for the individual or entity
identified above as the addressee. If you are not the addressee (or the
employee or agent responsible to deliver it to the addressee), or if this
message has been addressed to you in error, you are hereby notified that
you may not copy, forward, disclose or use any part of this message or any
attachments. Please notify the sender immediately by return e-mail or
telephone and delete this message from your system.
Matus UHLAR - fantomas
2018-06-29 17:13:09 UTC
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Post by Blason R
Post by w***@e1b.org
Post by Blason R
I have bind Master server with me and slave is at other remote
location. My query is since I have opted for PUSH update from master
to slave over random port.
What if the link at slave is down and NOTFY message is not reached?
When will slave then pull the update?
Yes, according to the refresh interval in the SOA record. The pertinent
values are REFRESH, RETRY and EXPIRE. See section 3.3.13 of RFC1035
https://tools.ietf.org/html/rfc1035#page-19
William, btw, people put the signature at the bottom of sent mail, not at the
top. It would be better if you did it too.
Post by Blason R
OK - Got it so is there any settings available at master by which it will
keep on probing slave and as soon it is contacted NOTIFY Message is sent.
if you are asking, please use question marks.

There's no functionality in BIND that would keep sending notices to slaves
when they are down.
It's slaves' job to be up to date.
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w***@e1b.org
2018-06-29 17:22:22 UTC
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Post by Blason R
OK - Got it so is there any settings available at master by which it
will keep on probing slave and as soon it is contacted NOTIFY Message is
sent.

No. The slave will try every REFRESH interval to see if it can contact
the master.



Confidentiality Notice:
This electronic message and any attachments may contain confidential or
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identified above as the addressee. If you are not the addressee (or the
employee or agent responsible to deliver it to the addressee), or if this
message has been addressed to you in error, you are hereby notified that
you may not copy, forward, disclose or use any part of this message or any
attachments. Please notify the sender immediately by return e-mail or
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Blason R
2018-06-29 17:23:02 UTC
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Excellent..Thanks!
Post by w***@e1b.org
Post by Blason R
OK - Got it so is there any settings available at master by which it
will keep on probing slave and as soon it is contacted NOTIFY Message is
sent.
No. The slave will try every REFRESH interval to see if it can contact
the master.
This electronic message and any attachments may contain confidential or
privileged information, and is intended only for the individual or entity
identified above as the addressee. If you are not the addressee (or the
employee or agent responsible to deliver it to the addressee), or if this
message has been addressed to you in error, you are hereby notified that
you may not copy, forward, disclose or use any part of this message or any
attachments. Please notify the sender immediately by return e-mail or
telephone and delete this message from your system.
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