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Hi Ged,</div>
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That's a very useful detailed explanation.</div>
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Thank you very much.</div>
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I think, after some backup, I will run make install from the new source.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> bind-users <bind-users-bounces@lists.isc.org> on behalf of G.W. Haywood via bind-users <bind-users@lists.isc.org><br>
<b>Sent:</b> Thursday, May 28, 2020 8:02 PM<br>
<b>To:</b> bind-users@lists.isc.org <bind-users@lists.isc.org><br>
<b>Subject:</b> Re: Does 'make uninstall' work?</font>
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<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Hi there,<br>
<br>
On Thu, 28 May 2020, Nyamkhand Buluukhuu wrote:<br>
<br>
> ...<br>
> Does 'make uninstall' command work? I have a source folder remained.<br>
> Or do I need to compile a newer version with a different prefix and make a link?<br>
><br>
> Which one is the safest way? If make uninstall doesn't work, how do you guys upgrade your compiled bind?<br>
<br>
I don't normally bother with 'make uninstall' for anything at all.<br>
<br>
You could simply make a copy of the existing 'named' binary in a safe<br>
place and when you run 'make install' it will (if you configured things<br>
same as last time) overwrite your existing 'named' binary. Of course<br>
it will overwrite all the other BIND binaries too so this might not be<br>
as safe as you would like it to be.<br>
<br>
BIND releases in particular are very reliable and I don't even make a<br>
safe copy of the 'named' binary when I build a new one. I generally<br>
leave the source tree from the previous version in my home directory<br>
until I can see that the latest version is working. If things went<br>
wrong for some reason I could just change directory to the older one<br>
and run 'make install' there to recover the earlier 'named' version.<br>
Once a new version runs OK I delete the source tree for the old one.<br>
<br>
Even if it was deleted it's very easy to recover it from the released<br>
tarballs. If you don't still have the source tree for the old version<br>
now might be a good time to create it again and make sure that you can<br>
still build the older version of the 'named' binary. Of course you<br>
don't need to run 'make install' for the old version but it might be<br>
worth comparing the binary built by the 'make' step with the one that<br>
you're running.<br>
<br>
However since you ask for the safest way of doing things I suggest<br>
that you first set up slave nameservers, if you do not already have<br>
any, and make sure that your TTLs are sane - at least a few days. My<br>
slave servers are provided by Hurricane Electric. I'm very happy with<br>
their services. If I break something on the master, or if one of a<br>
hundred or possibly more other problems happens, then the slaves will<br>
handle the load while I'm fixing it so isn't a big deal.<br>
<br>
If you want to be able to run either version you could for example<br>
configure the build process so that the old binary is somewhere like<br>
/usr/sbin and the new one in /usr/local/sbin; then you can choose<br>
which one runs in your startup scripts. They will both use the same<br>
configuration and data (in /etc/named.conf and /var/named/ or wherever<br>
you have configured it to be).<br>
<br>
-- <br>
<br>
73,<br>
Ged.<br>
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