Reply

How do I flush the DNS cache on my Orbi system?

mcbainpc
Aspirant

How do I flush the DNS cache on my Orbi system?

Hello, I am running an RBR50 with FW V2.5.1.8 and I've added a pi-hole machine to my network. Now I'd like to flush the DNS cache of the Orbi system so it must fetch all entries from the pi-hole box.

 

How can I flush the DNS cache of my router?  Thanks!

Model: RBR50|Orbi AC3000 Tri-band WiFi Router
Message 1 of 4

Accepted Solutions
CrimpOn
Guru

Re: How do I flush the DNS cache on my Orbi system?

As @FURRYe38 mentioned, the most obvious step is to reboot the router.  Orbi is built on the OpenWRT project.  I found this answer about flushing the DNS cache on it: https://unix.stackexchange.com/questions/8160/how-to-clear-dns-cache-on-dd-wrt 

 

In addition, DNS cache entries "time out".  This is an internet requirement in case some resource changes IP addresses.  So, no matter where Orbi got a DNS entry, it will eventually time out and the next time a device ask, it will come from the Pi-hole.

I love my Orbi.

View solution in original post

Message 3 of 4

All Replies
FURRYe38
Guru

Re: How do I flush the DNS cache on my Orbi system?

Does rebooting the RBR do this? 

 

My Setup ISP SparkLight | Internet Cable 1000↓/50↑ CBR750 Modem | Wifi Router CBR750(v.7) | Switches NG GS105/8 and XS505M | 

Additional NG HW: C7800/CAX80/CM1100/CM1200/CM2000, Orbi: CBK40, CBK752, RBK50, RBK853, RBK752, RBK953, SXK30 | NightHawk: R7000, R7800, R7960P, R8000, R8500, RAXE500, RAX50, XR450, EX7500/EX7700, GS308v3

Message 2 of 4
CrimpOn
Guru

Re: How do I flush the DNS cache on my Orbi system?

As @FURRYe38 mentioned, the most obvious step is to reboot the router.  Orbi is built on the OpenWRT project.  I found this answer about flushing the DNS cache on it: https://unix.stackexchange.com/questions/8160/how-to-clear-dns-cache-on-dd-wrt 

 

In addition, DNS cache entries "time out".  This is an internet requirement in case some resource changes IP addresses.  So, no matter where Orbi got a DNS entry, it will eventually time out and the next time a device ask, it will come from the Pi-hole.

I love my Orbi.
Message 3 of 4
mcbainpc
Aspirant

Re: How do I flush the DNS cache on my Orbi system?

Thank you for the excellent response.

Message 4 of 4
Top Contributors
Discussion stats
  • 3 replies
  • 5795 views
  • 2 kudos
  • 3 in conversation
Announcements

Orbi WiFi 6E