6 posts with tag tls

What is a (D)DoS - technical

Technical (D)DoS attack vectors: Layer 3/4 floods, BGP hijacking, Layer 7 application DDoS, and operational resilience strategies to keep services available.

· 9 minutes reading time

Running a validating DNS recursor from the root zone with Hickory DNS

How to run Hickory DNS as a full recursive resolver starting from the root zone, with DNSSEC validation, TLS-encrypted upstream connections, Happy Eyeballs, and Prometheus metrics — including all configuration options added in the recurser-from-root-zone branch.

· 12 minutes reading time

Simple autotls setup with ferron

This article describes simple autotls setup with ferron webserver

· 1 minute reading time

tls-proxy-tunnel: Transparent TLS Tunnelling Through Corporate HTTP Proxies

How tls-proxy-tunnel (tpt) uses SNI peeking to tunnel TLS connections through corporate HTTP CONNECT proxies without ever terminating TLS — layer 4, zero config on the client side.

· 3 minutes reading time

How does SNI Routing work in HAProxy

Learn how HAProxy container uses TLS Server Name Indication (SNI) to route encrypted TCP connections without decrypting them — enabling multiple services like Nextcloud and XMPP to share port 443.

· 4 minutes reading time

curl:// for Network Debugging — curlup 2017

Talk from curlup 2017: how to use curl as a network debugger — telnet replacement, --resolve for SNI debugging, and why -v and -k are essential options.

· 2 minutes reading time