A primitive DNS server written in Rust for fun. Todo: Add extensive comments, replace hardcoded bits with constants.
@lucavallin ➜ /workspaces/vodo (main) $ ./target/debug/vodo -h
A primitive DNS server written in Rust for fun.
Usage: vodo [OPTIONS]
Options:
-p, --port <PORT> Port for the server to listen on [default: 2053]
-h, --help Print help
-V, --version Print version# Build the server
$ cargo build --release
# Run the server (or use cargo run)
$ ./target/release/vodo -p 2053
# Query the server
$ dig @127.0.0.1 -p 2053 cavall.in
; <<>> DiG 9.18.16-1~deb12u1-Debian <<>> @127.0.0.1 -p 2053 cavall.in
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8919
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 2, ADDITIONAL: 0
;; QUESTION SECTION:
;cavall.in. IN A
;; ANSWER SECTION:
cavall.in. 1799 IN A 185.199.111.153
cavall.in. 1799 IN A 185.199.108.153
cavall.in. 1799 IN A 185.199.109.153
cavall.in. 1799 IN A 185.199.110.153
;; AUTHORITY SECTION:
cavall.in. 1800 IN NS dns1.registrar-servers.com.
cavall.in. 1800 IN NS dns2.registrar-servers.com.
;; Query time: 120 msec
;; SERVER: 127.0.0.1#2053(127.0.0.1) (UDP)
;; WHEN: Sun Jul 23 16:04:24 UTC 2023
;; MSG SIZE rcvd: 225
- There is no true concurrency in this server.
- It does not support TCP, IPv6, EDNS or DNSSEC.
- It cannot be used to host its own zones, and allow it to act as an authorative server.
- There is no caching.
- There are no automated tests or benchmarks.