BIND Memory Management Explained
The Basics The basic BIND 9 memory management object is a memory context: the application can have as many as is practical.
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Aliasing in the DNS and HTTPS/SCVB RRs
It would be very handy to be able to establish an alias for an apex record in the DNS. Unfortunately, this is not a standardized feature of the DNS, although some operators have created proprietary features with this effect.
The new HTTPS and Service-binding (SCVB) resource records on the brink of standardization in the IETF are supposed to “solve” this long-standing interoperability problem. In this webinar, Carsten explains:
- What is a CNAME?
- What is an alias?
- What is the problem with CNAMEs at the zone apex?
- How is this new HTTPS/SCVB system supposed to work?
- What do we know about implementation status?
**A recording of this webinar can be found on ISC’s Youtube channel. **
Memory management in BIND 9
Users frequently ask us how to optimize BIND 9 memory usage, for the best performance with a “safe” amount of overhead. This is an impossible question to answer! The truth is, every installation is different and the answers are platform-specific. So how can you measure memory usage on your platform, and how can you adjust BIND memory usage if you need to? Find out at our December webinar!
- How should you measure BIND 9 memory usage (Authoritative and Resolver)?
- Why does BIND 9.16+ use more memory than older versions?
- What is jemalloc and how does it help with BIND 9 memory usage?
- What BIND features can you adjust to change BIND’s memory usage?
A Recording of this webinar can be found on ISC’s Youtube channel. Slides are here
Speaker information:
Carsten Strotmann has more than 20 years of professional experience working in open source networking. He has delivered many webinars and training classes on open source solutions and DNS/DHCP/IPv6/Linux/Unix security. He also is the author of various articles on IT security topics in computer magazines.