DNS scavenging with BIND9?

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DNS scavenging with BIND9?

Postby Sephiroth » July 14th, 2014, 11:55 pm

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?
Owyn: "This next one is a high elf sorceress or something, just get in close and stab her a few times, that'll teach her!"
Owyn: "I heard a rumor that you're an idiot. Is that true?"
Cicero: "Stab you, stab you, stab you!"
Psycho: "You sat in my swing, now I'm going to eat you!"
Psycho: "I think he's gonna' play xylophone with my spinal cord!"
Sephiroth
 
Posts: 387
Joined: February 22nd, 2011, 3:09 pm
Location: North Carolina

Re: DNS scavenging with BIND9?

Postby Sephiroth » July 23rd, 2014, 9:03 pm

Anybody? I have been checking client locations and have stale records years old...
Owyn: "This next one is a high elf sorceress or something, just get in close and stab her a few times, that'll teach her!"
Owyn: "I heard a rumor that you're an idiot. Is that true?"
Cicero: "Stab you, stab you, stab you!"
Psycho: "You sat in my swing, now I'm going to eat you!"
Psycho: "I think he's gonna' play xylophone with my spinal cord!"
Sephiroth
 
Posts: 387
Joined: February 22nd, 2011, 3:09 pm
Location: North Carolina

Re: DNS scavenging with BIND9?

Postby Sephiroth » August 1st, 2014, 2:06 am

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?
Owyn: "This next one is a high elf sorceress or something, just get in close and stab her a few times, that'll teach her!"
Owyn: "I heard a rumor that you're an idiot. Is that true?"
Cicero: "Stab you, stab you, stab you!"
Psycho: "You sat in my swing, now I'm going to eat you!"
Psycho: "I think he's gonna' play xylophone with my spinal cord!"
Sephiroth
 
Posts: 387
Joined: February 22nd, 2011, 3:09 pm
Location: North Carolina

Re: DNS scavenging with BIND9?

Postby polaris96 » September 7th, 2014, 5:09 pm

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
for as long as the world remains. for as long as time remains. so, too, will I remain. To serve. To help. And to make my contribution. Also please visit old friends at forums.debian.net
polaris96
 
Posts: 161
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Re: DNS scavenging with BIND9?

Postby Sephiroth » September 9th, 2014, 3:07 am

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.
Owyn: "This next one is a high elf sorceress or something, just get in close and stab her a few times, that'll teach her!"
Owyn: "I heard a rumor that you're an idiot. Is that true?"
Cicero: "Stab you, stab you, stab you!"
Psycho: "You sat in my swing, now I'm going to eat you!"
Psycho: "I think he's gonna' play xylophone with my spinal cord!"
Sephiroth
 
Posts: 387
Joined: February 22nd, 2011, 3:09 pm
Location: North Carolina

Re: DNS scavenging with BIND9?

Postby TheRandyOne » October 8th, 2019, 6:04 pm

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'
TheRandyOne
 
Posts: 1
Joined: October 8th, 2019, 5:58 pm


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