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DNS scavenging with BIND9?

PostPosted: July 14th, 2014, 11:55 pm
by Sephiroth
I do not know what the proper term is for BIND9, but in Windows DNS we have DNS "scavenging". It finds stale records and deletes them. How can I do this in BIND9? My server has been up for years and I just changed my home network setup from a class B to a class C and in doing so, realized that my zone file had hundreds of stale records for machines no longer here that have been gone for ages. Is there something that can do this in Linux with BIND9?

Re: DNS scavenging with BIND9?

PostPosted: July 23rd, 2014, 9:03 pm
by Sephiroth
Anybody? I have been checking client locations and have stale records years old...

Re: DNS scavenging with BIND9?

PostPosted: August 1st, 2014, 2:06 am
by Sephiroth
So BIND, in the year 2014, keeps expired DNS records until the network comes down and some poor sap has to go in and start deleting everything?

Re: DNS scavenging with BIND9?

PostPosted: September 7th, 2014, 5:09 pm
by polaris96
i used a shell script. it's kinda hacky but it saved me digging deep into the bind9 manpages.

if your DNS is small, I've had better results with DNSmasq. it's what I use now for my WAN

Re: DNS scavenging with BIND9?

PostPosted: September 9th, 2014, 3:07 am
by Sephiroth
Unfortunately, Samba does not support DNSMasq, only BIND9. I am just surprised at the lack of such a basic feature. I have been reading the manpages in my spare time, but no luck yet.

Re: DNS scavenging with BIND9?

PostPosted: October 8th, 2019, 6:04 pm
by TheRandyOne
Sephiroth wrote:So BIND, in the year 2014, keeps expired DNS records until the network comes down and some poor sap has to go in and start deleting everything?


It's now 2019 and Bind still does not do DNS scavenging.

Also, well done on making it to the top of Google search results when looking for 'bind9 record scavenging'