Published AI
Trying Out WebMCP
Cloudflare announced they support WebMCP recently. It is not something you can rely on broadly yet, but I went ahead and added WebMCP support to this blog.
Posts
Published Security
What a Cross-Root Certificate Actually Is: Reading DigiCert's G5 Transition
How cross-root certificates work, and how to judge an existing G1 → G5 chain as DigiCert moves issuance to its G5 root hierarchies.
Updated Web Development
Going CMS-Free: A Secure, Affordable Static Site with Astro, GitHub, and Cloudflare Pages
Why Astro, GitHub, and Cloudflare Pages can offer a practical balance of security, cost, and simplicity for a small static site.
Published Network
JANOG57 NETCON Walkthrough (Level 3-2): DNS and CDN Caching
Configure BIND records and Varnish VCL for origin authentication, cached homepage responses, and cache bypass for a dynamic page and the browser.
Published Network
JANOG53 NETCON Walkthrough (Level 4-2): iBGP and LVS
Restore redundant connectivity with iBGP and ECMP on SONiC and cEOS, then configure LVS persistence so authentication connections reach the same server.
Published Network
JANOG51 NETCON Walkthrough (Level 1-1): VLANs and Trunk Ports
Restore connectivity for VLANs 1 and 10 by identifying an access-mode link between two switches and configuring trunk ports.
Published Network
JANOG51 NETCON Walkthrough (Level 1-4): Troubleshooting RIP
Combine static routes and RIP redistribution to restore connectivity from Osaka-B, including its loopback interface, to Tokyo-A.
Updated Network
JANOG50 NETCON Walkthrough (Level 3-4): BGP over IPsec
Troubleshoot an IKEv2 proposal mismatch and recursive routing that causes a BGP-over-IPsec tunnel to flap, using only the local router.
