Re: Can we enable serve-stale parameter in bind

2023-11-05 Thread Ondřej Surý
This is a horrible reason to enable serve-stale. Serve stale is a bandaid. You should increase a resiliency of the architecture - have more nameservers for the domain, make the restarts seamless, etc. Serve-stale was meant to deal with unexpected outages and not as a workaround for bad

Re: Help about DNS documentation

2023-11-05 Thread Andrew Latham
* Commonly when an answer to a query is larger than UDP should handle, a switch to TCP is required. This can be configurable and done in unexpected ways to thwart DDOS * I do not know of any laws specifically mentioning DNS. General computer system/network laws could apply. * I think there would

Can we enable serve-stale parameter in bind

2023-11-05 Thread Prasanna Mathivanan (pmathiva) via bind-users
Hi team, If there is a scenario where NS are not reachable, until its up we can serve from cache. Enabling serve-stale can help us with this use case, is it safe to enable this parameter and what should be the recommended value set for max-stale-ttl ? -- Regards, Prasanna -- Visit

Re: How should I configure internal and external DNS servers

2023-11-05 Thread Michael Richardson
Greg Choules via bind-users wrote: > What would be better (IMHO) is for you to keep "example.com" as your > external zone in an external (hopefully in a DMZ) primary server, > serving the world with public addresses they need to reach, and > internally create a new zone -