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15 April 2021
Europe/London timezone

Are You XDPerienced?: More tinkering with DNS and XDP

15 Apr 2021, 15:00
30m

Standard Presentation Main Session UKNOF47

Speakers

Willem Toorop (NLnet Labs) Tom Carpay (NLnet Labs)

Description

The eXpress Data Path (XDP) is a "hook" in the Linux kernel providing programmability at the lowest layer of the Network Stack (at the device driver layer) and can even be hardware offloaded to programmable devices (e.g. SmartNICs). XDP provides an easy way to perform some parts of DNS handling in the kernel but still have traditional userspace software 'after' that. XDP does not have to replace DNS software in userspace, it can augment it.

With this presentation you will experience how DNS can benefit from XDP with hands-on examples of directly usable running code. We will show how operators can use XDP programs to deal with Denial of Service attacks and otherwise tweak their DNS service behaviour.

Talk Duration 25 Minutes Presentation (+5 Minutes Q&A)
Your consent for us to publish your name and affiliation as a Speaker on the UKNOF47 website Yes

Primary authors

Willem Toorop (NLnet Labs) Tom Carpay (NLnet Labs)

Co-author

Dr Luuk Hendriks (NLnet Labs)

Presentation materials