^(Windows)Kumbiyuutarrada Windows waxay dib u cusbooneysiiyaan diiwaankooda DNS ee aagagga domain-ka ee ay martigeliyaan server-yada DNS 24-kii saacadoodba mar^{(every 24 hours)} . Marka kumbuyuutarka Windows laga saaro goobta ama uu awoodi waayo inuu cusbooneysiiyo diiwaankiisa DNS ee ^(DNS)Server -ka ^{(DNS Server)}DNS , diiwanka DNS ee kumbuyuutarka Windows wuxuu ku sii jirayaa keydka DNS waxaana loo arkaa inuu yahay rikoor DNS ah oo duugan . Diiwaanada DNS ee fadhiidka ah waxay ku sii jiraan kaydka xogta DNS haddii aan gacanta laga saarin. DNS Aging iyo Scavenging waxay ku caawisaadhaqso u aqoonso diiwaanada DNS ee duugmay oo gacanta ka saar^{(quickly identify the stale DNS records and remove them manually)} . Maqaalkan, waxaan ku siin doonaa sharaxaad ku saabsan waxa DNS Aging iyo Scavenging yahay, iyo sidoo kale dulmar tillaabooyinka loo baahan yahay si loo habeeyo / awood sifaan on server Windows .

Waa maxay Aging DNS?

Gabowga^(Aging) waa sifo u oggolaanaysa in la aqoonsado diiwaannada DNS ee gaboobay . Waxay dhab ahaantii isticmaashaa laba durugsan oo diiwaanka DNS waxaa loo tixgeliyaa inuu yahay mid taagan mar labaduba ay dhaafaan.

Inta udhaxeysa waa:

• Dhexdhexaadinta Aan Dib-u-cusboonayn^{(Non-Refresh Interval)} : Waa wakhti inta lagu jiro wakhtiga aan diiwaanka kheyraadka aan la cusboonaysiin karin (*). Diidmada dib-u-cusboonaysiinta inta lagu jiro wakhtigan waxay yaraynaysaa soo-celinta taraafigga maadaama aysan jirin baahi loo qabo in dib loo soo celiyo isla macluumaadkaas.
• Dhexdhexaadinta Dib^{(Refresh Interval)} -u-Celinta : Waa wakhti inta lagu jiro wakhtiga kaydinta kheyraadka dib loo cusboonaysiin karo (*).

* _^(DNS) _ Cusboonaysiinta firfircoon ee DNS si loo beddelo IP-ga diiwaangashan ee diiwaanka kheyraadka looma tixgalinayo dib-u-cusbooneysiin oo waa laga dhaafay dhexda aan dib-u- cusbooneysiin^(Interval) .

Waa maxay Scavenging DNS?

Scavenging waa sifo u ogolaanaysa nadiifinta iyo ka saarida diiwaanada kheyraadka ee aagagga DNS .

Diiwaanka kheyraadka duugoobay ayaa meesha laga saarayaa kaliya haddii la damiyo qashinka:

• Diiwaanka kheyraadka
• Aagga DNS halkaasoo diiwaanka kheyraadka uu jiro
• Ugu yaraan hal DNS oo martigelinaya koobiga aasaasiga ah ee aagga DNS halkaasoo diiwaanka kheyraadka uu jiro

Is-daba-marintu waxay ku dhacdaa muddooyin soo noqnoqda marka la furo server-ka DNS . Diiwaanka kheyraadka duugoobay ayaa markaa wali jiri kara ilaa wareegga xiga ee xoqista DNS .

Haddii aadan awood u siinin Aging DNS^{(DNS Aging)} iyo qashinka, waxaa laga yaabaa inaad la kulanto xaaladaha soo socda:

• Goobaha domain^(Domain) waxay hayn doonaan diiwaanka DNS ee aan loo baahnayn.
• In muddo ah, cabbirka xogta DNS waa la kordhin doonaa.^(DNS)
• Waxay qaadan doontaa wakhti dheeraad ah adeegga server-ka DNS si loo tiriyo oo loo raro xogta DNS ee xusuusta.
• Waxay qaadan doontaa wakhti dheeraad ah server-ka DNS si uu uga jawaabo su'aasha DNS . Tani waa sababta oo ah server-ka DNS wuxuu u baahan yahay inuu tiriyo dhammaan diiwaannada DNS ka hor inta uusan helin diiwaanka DNS ee loo baahan yahay ka dibna u soo diro jawaab.
• Adeegayaasha DNS^(DNS) waxa laga yaabaa in ay kaga jawaabaan diiwaanka DNS ee aan sax ahayn ee aan hadda ka jirin shabakadda taas oo keenta dhibaatooyinka xallinta ee shabakadda.
• Kumbuyuutar kale oo macmiilka Windows ah ayaa laga yaabaa inuusan awoodin inuu diiwaangeliyo diiwaankiisa DNS haddii isla cinwaanka IP-ga loo isticmaalo diiwaanka DNS ee jira.

Daar^(Enable) & Habee DNS Aging^{(Configure DNS Aging)} iyo Scavening

Si aad si guul leh ugu habayso/u suurtageliso gabowga^{(DNS Aging)} iyo xoqidda DNS server-ka Windows , waxaad u baahan tahay inaad raacdo 3 tillaabo sidaan;

1. Hubi diiwaannada DNS Server-^{(Check Server DNS Records)} ka (tallaabada koowaad ee aad muhiim u ah)
2. Daar gabowga DNS iyo ka-saarista aagagga DNS
3. U oggolow in la xoqo DNS ugu yaraan hal server oo DNS ah oo martigelinaya nuqullada aasaasiga ah ee aagagga DNS kaaga^(DNS)

Aynu si faahfaahsan u eegno tillaabooyinka ku lug leh.

1] Hubi diiwaannada DNS Server-^{(Check Server DNS Records)} ka (tallaabada koowaad ee muhiimka ah)

Talaabadani waa muhiim sababtoo ah haddii aanad raacin talaabadan marka hore waxaad dhamayn kartaa tirtirida diiwaanada server-ka DNS . Si taxaddar leh, waxaa laga yaabaa inaad rabto inaad sidoo kale kaydiso server-kaaga DNS iyo diiwaannada.

Scavenging waxay ku shaqeysaa shaambada waqtiyada, sidaa darteed diiwaan kasta oo DNS ah oo leh shaambad waqti ayaa la farsameynayaa oo suurtogal ah in la tirtiro. Markaa waxaa lagugula talinayaa inaad hubiso diiwaanka DNS ee server-kaaga oo aad hubiso inay taagan yihiin.

Si aad u hubiso diiwaankaaga fur console- ka DNS oo aad hubiso tiirka ^(DNS)Timestamp , adeegayaashaada waa in loo dejiyaa inay taagan yihiin. Haddii kale, si fudud u fur diiwaanka ka dib calaamad ka saar Delete rikoorkan marka uu noqdo^{(Delete this record when it becomes stale )} sanduuqa duugoobay.

Markaad taas sameyso, dib u cusboonaysii konsole-ka DNS -ka timestamp-ku wuxuu hadda muujin doonaa mid taagan^(static) .

Hubi dhammaan diiwaannada server-kaaga oo u beddel kuwa taagan ka hor intaadan u dhaqaaqin tallaabada xigta.

2] U sahlo^{(Enable DNS)} gabowga DNS iyo xoqidda aagagga DNS

Samee kuwan soo socda:

• Adigoo isticmaalaya qalabka maamulka ee DNS (dnsmgmt.msc), u tag sifooyinka aagagga ^(zones)DNS kaaga ka dibna dhagsii  gabowga…^(Aging…)
• U oggolow Scavenge diiwaanka kaydka kaydka kaydka kaydka ^{(Scavenge stale resource records )} , sheeg inta u dhaxaysa Aan Dib-u- cusbooneysiin^(Refresh) , iyo Wakhtiyada^(Refresh) udhaxeeya.
• Guji OK

Si aad u sameyso gabowga iyo xoqista DNS -ka oo ay awood u siiso dhammaan aagagga DNS ee server-ka ^(DNS)DNS , waxaad u baahan tahay inaad ku socoto sida soo socota:

• Midig ku dhufo^{(Right-click)} magaca serverka ka dibna dhagsii Set Aging/Scavenging for All Zones…
• U oggolow Scavenge diiwaanka kaydka kaydka kaydka kaydka ^{(Scavenge stale resource records )} , sheeg inta u dhaxaysa Aan Dib-u- cusbooneysiin^(Refresh) , iyo Wakhtiyada^(Refresh) udhaxeeya.
• Guji OK
• Hubi ka codso goobahan sanduuqa aagagga isku dhafan ee Hagaha Firfircoon ee jira^{(Apply these settings to the existing Active Directory-integrated zones )} (Tani waxay awood u siin doontaa gabowga DNS iyo xoqidda aagagga ^(DNS)isku dhafan ee Hagaha Firfircoon ee^{(Active Directory-integrated)} jira ).
• Guji OK

Hadda, sii wad tallaabada xigta iyo tan u dambaysa.

3] U oggolow in la xoqo DNS^{(Enable DNS)} ugu yaraan hal server oo DNS ah oo martigelinaya nuqullada aasaasiga ah ee aagagga DNS kaaga^(DNS)

Samee kuwan soo socda:

• Tag sifooyinka server-kaaga DNS .
• Tag tab Advanced  .
• Hubi in awood si toos ah u xoqin^{(Enable automatic scavenging of stale records )} sanduuqa diiwaanada duugoobay.
• Marka la sameeyo, sheeg xilliga Scavenging (Taasi waa muddada soo noqnoqda ee Scavenging server DNS ).
• Guji OK

That’s it! That completes the setup of DNS Aging and Scavenging. 

How to Enable & Configure DNS Aging & Scavenging in Windows Server

Windows computers refresh their DNS records in the domаin zones hosted by the DNS serνers every 24 hours. When a Windows computer is removed from the domain or is not able to update its DNS record in the DNS Server, the DNS record of that Windows computer remains in the DNS database and is considered to be a stale DNS record. The stale DNS records remain in the DNS database unless it’s manually removed. DNS Aging and Scavenging helps to quickly identify the stale DNS records and remove them manually. In this post, we will provide a description of what DNS Aging and Scavenging is, as well as outline the steps required to configure/enable this feature on the Windows server.

What is DNS Aging?

Aging is a feature that allows identifying stale DNS records. It actually uses two intervals and a DNS record is considered as stale once both are elapsed.

These intervals are:

• Non-Refresh Interval: It is a period of time during which a resource record cannot be refreshed (*). Refusing the refresh during this period of time reduces the replication traffic as there is no need to replicate the same information again.
• Refresh Interval: It is a period of time during which a resource record could be refreshed (*).

(*) A resource record refresh is a DNS dynamic update where the hostname and IP do not change. A DNS dynamic update to change the registered IP for a resource record is not considered as a refresh and is exempt from the Non-Refresh Interval.

What is DNS Scavenging?

Scavenging is a feature that allows the cleanup and removal of stale resource records in DNS zones.

A stale resource record will be removed only if scavenging is enabled on:

• The resource record
• The DNS zone where the resource record exists
• At least one DNS hosting a primary copy of the DNS zone where the resource record exists

Scavenging occurs on recurring intervals when enabled on a DNS server. A stale resource record can then still exist until the next cycle of DNS scavenging.

If you do not enable DNS Aging and scavenging, you might face the following situations:

• Domain zones will hold the DNS records that are not needed.
• Over a period of time, the DNS database size will be increased.
• It will take more time for the DNS server service to enumerate and load the DNS database in memory.
• It will take more time for the DNS server to respond to a DNS query. This is because the DNS server needs to enumerate all DNS records before it can find the required DNS record and then send a response.
• DNS servers might respond with an invalid DNS record that no longer exists on the network causing naming resolution problems on the network.
• Another Windows client computer might not be able to register its own DNS records if the same IP address is being used by a stale DNS record.

Enable & Configure DNS Aging and Scavenging

To successfully configure/enable DNS Aging and Scavenging on Windows server, you need to follow 3 steps in this order;

1. Check Server DNS Records (very important first step)
2. Enable DNS aging and scavenging on DNS zones
3. Enable DNS scavenging on at least one DNS server hosting primary copies of your DNS zones

Let’s take a look at the steps involved in detail.

1] Check Server DNS Records (very important first step)

This step is crucial because if you don’t follow this step first you could end up deleting server DNS records. As a precaution, you may want to also backup your DNS server and or records.

Scavenging works on timestamps, so any DNS record with a timestamp will get processed and possibly deleted. So it’s recommended you check your server DNS records and make sure they are static.

To check your records open the DNS console and check the Timestamp column, your servers should be set to static. If not, simply open the record then uncheck the Delete this record when it becomes stale box.

Once you have done that, refresh the DNS console the timestamp will now show static for that record.

Check all your server records and change them to static before moving onto the next step.

2] Enable DNS aging and scavenging on DNS zones

Do the following:

• Using DNS administrative tool (dnsmgmt.msc), go to the properties of your DNS zones and then click on Aging…
• Enable Scavenge stale resource records checkbox, specify the Non-Refresh interval, and Refresh interval periods.
• Click OK.

To make DNS aging and scavenging enabled by default for all DNS zones on a DNS server, you need to proceed as follows:

• Right-click on the server name and then click on Set Aging/Scavenging for All Zones…
• Enable Scavenge stale resource records checkbox, specify the Non-Refresh interval, and Refresh interval periods.
• Click OK.
• Check the Apply these settings to the existing Active Directory-integrated zones box (This will enable DNS aging and scavenging for the existing Active Directory-integrated zones).
• Click OK.

Now, proceed with the next and final step.

3] Enable DNS scavenging on at least one DNS server hosting primary copies of your DNS zones

Do the following:

• Go to the properties of your DNS server.
• Go to Advanced tab.
• Check the Enable automatic scavenging of stale records box.
• Once done, specify the Scavenging period (That is the recurring interval for Scavenging on a DNS server).
• Click OK.

That’s it! That completes the setup of DNS Aging and Scavenging. 

Related posts

• RSAT waxay maqan tahay aaladaha server-ka DNS ee gudaha Windows 10

• Server-kaaga DNS waxaa laga yaabaa inaan laga heli karin gudaha Windows 11/10

• Aaladda Adeegga Dadweynaha ee DNS waa beddelka DNS bilaashka ah ee Windows 10

• Hagaaji Server-kaaga DNS waxaa laga yaabaa inuu yahay qalad aan la heli karin

• Sida loo beddelo Server-ka DNS ee Windows 11

• Sida Loo Beddelayo Bixiyaha DNS-kaaga Windows

• Sida loo habeeyo Global Proxy Server Settings gudaha Windows 10

• Sida loo beddelo goobaha DNS gudaha Windows 11/10 si fudud

• Sida loo nadiifiyo kaydka DNS ee Windows, Mac, Android iyo iOS

• Iperius Backup waa kaabta software bilaash ah oo loogu talagalay Windows Server

• Waa maxay DNS? Sidee bay faa'iido u leedahay?

• Sida loo hagaajiyo Server-ka DNS oo aan ka jawaabin qalad

• Sida loo rakibo IIS oo loo habeeyo server-ka shabakadda gudaha XP

• Sida loo tirtiro Doorarka iyo Features gudaha Windows Server

• BAARITAANKA DENSKA OO DHAMEEYAY NXDOMAIN Server IP ciwaanka waa la heli kari waayay

• Sida loo Nadiifiyo, Dib u Dajinta, U Daadi Cache DNS gudaha Windows 11/10

• Sida loogu awood DNS ka badan HTTPS gudaha Windows 11/10

• Hagaaji qaladka Dhaqdhaqaaqa Server Windows 0xc004f069

• Ku Habee Qufulka Koontada Helitaanka Fog ee Windows Server

• Sida loo xannibo mareegaha dadka waaweyn Windows 10 iyadoo la adeegsanayo Adeegyada DNS