Review Glossary FR

Size

Eyes

Finish a part in any dojo to unlock the next eyes.

Follow one request across the network.

One chapter a day, with real packet captures, real config from open-source projects and the RFC that defines the behaviour.

Today · day 1 · 10 min

What a request is made of
Start reading →

0 of 40 chapters done

Packets: 0 of 8Names and addresses: 0 of 8HTTP and TLS: 0 of 8Between services: 0 of 8Debugging the network: 0 of 8
One pillar per part. It fills as you finish its chapters.

The path

Packets: 0 of 8Packets

  1. What a request is made of 1
  2. IP addresses and CIDR 2
  3. Routing tables 3
  4. ARP and MAC addresses 4
  5. The TCP handshake 5
  6. Lost packets and retransmission 6
  7. Flow and congestion control 7
  8. Ports, sockets and TIME_WAIT 8

Names and addresses: 0 of 8Names and addresses

  1. How a name is resolved 9
  2. DNS records 10
  3. TTLs and caching 11
  4. resolv.conf, search and ndots 12
  5. UDP 13
  6. NAT and conntrack 14
  7. IPv6 for IPv4 people 15
  8. MTU and fragmentation 16

HTTP and TLS: 0 of 8HTTP and TLS

  1. HTTP/1.1 on the wire 17
  2. HTTP/2 18
  3. HTTP/3 and QUIC 19
  4. The TLS 1.3 handshake 20
  5. Certificate chains 21
  6. HTTP caching 22
  7. CORS 23
  8. WebSockets through proxies 24

Between services: 0 of 8Between services

  1. Layer 4 and layer 7 load balancing 25
  2. Reverse proxies and forwarded headers 26
  3. Timeouts 27
  4. Connection pools 28
  5. Health checks 29
  6. CDNs 30
  7. Service discovery 31
  8. gRPC over HTTP/2 32

Debugging the network: 0 of 8Debugging the network

  1. Packet filtering with iptables and nftables 33
  2. Network namespaces 34
  3. Kubernetes Services and kube-proxy 35
  4. Kubernetes NetworkPolicy 36
  5. Reading tcpdump 37
  6. Where the time goes 38
  7. BGP and anycast 39
  8. One request end to end 40