Networking

I spent €65 on a domain to publicly list every network sending router advertisements, BPDUs and other junk onto IXP peering LANs. Live, with pcaps and the one line of config that fixes it.

Odido still has no IPv6, and I'm about to become their customer. So I bring my own: an IPv6-mostly VLAN with NAT64, a /48 from my own ASN, and a tunnel that survives the switch.

Simplify DNS with catalog zones: set up a PowerDNS primary as producer and Knot secondaries to auto-provision zones to slave servers without manual config.

Odido's lawyers threatened to sue over heeftodidoalipv6.nl, my joke site about their missing IPv6 rollout — the trademark dispute and why IPv6 matters.

How to get a personal ASN (AS202585): sponsoring LIR vs RIR membership, IPv6 space, BGP routing with BIRD, upstream transit and peering at IXPs in Nikhef.

Step-by-step guide to an OPNsense OpenVPN server authenticating against Windows Active Directory over LDAP with TOTP two-factor tokens for each user.