VirtualTam's bookmarks

1. Fly.io - JIT Wireguard 2024-03-31

   tags: database/sqlite, network/http, network/udp, network/vpn/wireguard, programming/go

   [ permalink ]

   What if, instead of pushing [user] configs to gateways, we had the gateways pull them from our API on demand?

   • Linux Kernel - Introduction to Netlink
   • tqbf/wg_init.go - Wireguard initiator-responder identity example
2. Firezone - WireGuard-based VPN server and firewall 2023-08-30

   tags: network/udp, network/vpn/wireguard, security

   [ permalink ]

   • https://www.firezone.dev/
3. Server queries - Valve Developer Community 2022-01-16

   tags: game/steam, network/udp, programming/api

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   Client libraries:

   • https://github.com/rumblefrog/go-a2s
   • https://github.com/rumblefrog/a2s-rs/

   Example usage:

   • https://github.com/armsnyder/a2s-exporter
   • https://github.com/mbround18/valheim-docker/blob/main/src/odin/server/status/mod.rs
4. How can I sniff the traffic of remote machine with wireshark? - Server Fault 2021-03-02

   tags: network, network/ssh, network/tcp, network/udp, wireshark

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   • https://blog.jasonantman.com/2011/04/using-wireshark-to-capture-packets-from-a-remote-host/
   • https://osqa-ask.wireshark.org/questions/7976/wireshark-setup-linux-for-nonroot-user
5. NGINX Docs | UDP Health Checks 2020-12-21

   tags: load-balancing, network, network/http-server/nginx, network/tcp, network/udp

   [ permalink ]

   • https://docs.nginx.com/nginx/admin-guide/load-balancer/tcp-udp-load-balancer/
6. How NAT traversal works · Tailscale Blog 2020-09-19

   tags: network, network/address-translation, network/firewall, network/router, network/tcp, network/udp, network/webrtc

   [ permalink ]
7. Docker and Kubernetes userland proxies, versus exposing wide port ranges 2020-01-24

   tags: linux/container, linux/container/docker, linux/container/kubernetes, network, network/tcp, network/udp, performance

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   Docker:

   • https://github.com/moby/moby/issues/9021
   • https://github.com/moby/moby/issues/11185
   • https://github.com/moby/moby/issues/11185#issuecomment-245983651
   • https://github.com/moby/moby/issues/19017
   • https://github.com/docker/for-mac/issues/2670#issuecomment-372365274

   Kubernetes:

   • https://github.com/kubernetes/kubernetes/issues/1802
   • https://github.com/kubernetes/kubernetes/issues/23864
   • https://github.com/kubernetes/kubernetes/issues/23864#issuecomment-387070644

   Disabling userland proxy:

   • https://github.com/moby/moby/issues/5618
   • https://github.com/moby/moby/issues/14856
   • https://github.com/moby/moby/issues/11185#issuecomment-129085898

   Threads:

   • https://stackoverflow.com/questions/28717464/docker-expose-all-ports-or-range-of-ports-from-7000-to-8000
   • https://www.percona.com/blog/2016/02/05/measuring-docker-cpu-network-overhead/
   • https://forums.docker.com/t/exposing-large-range-of-ports-is-not-viable/20127/5
8. Every Linux networking tool I know - The poster 2019-03-15

   tags: linux, network, network/ip, network/packet, network/tcp, network/udp, observability, statistics, system, traffic

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9. ngrep: grep applied to the network layer 2018-12-22

   tags: grep, network, network/packet, traffic, wireshark

   [ permalink ]

   A PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets. It understands many kinds of protocols, including IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw, across a wide variety of interface types, and understands BPF filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.