DNS

Bind DNS: override RBL TTL

When you have spamfiltering using external blocklists you may quickly run out of credits because those lists set an absurd low TTL in the DNS responses. The common Bind nameserver does not allow you to set the minimum cache TTL and for good reasons, because normally you should never override that caching time out. It …

Bind DNS: override RBL TTL Read More »

Setup local DNS resolver on macOS Sierra

Simple instructions on how to install a local PowerDNS Recursor on macOS 10.12 Sierra to avoid using the DNS servers provided in your network or by your internet provider.