docker 拉取报错：
$ docker pull <仓库> Error response from daemon: Head https://registry-1.docker.io/v2/...: Get https://auth.docker.io/token?scope=repository%3Aespressif%2Fidf%3Apull&service=registry.docker.io: net/http: TLS handshake timeout
解决
$ dig @114.114.114.114 registry-1.docker.io ; <<>> DiG 9.11.3-1ubuntu1.17-Ubuntu <<>> @114.114.114.114 registry-1.docker.io ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32074 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;registry-1.docker.io. IN A ;; ANSWER SECTION: registry-1.docker.io. 55 IN A 44.194.5.25 registry-1.docker.io. 55 IN A 44.207.51.64 registry-1.docker.io. 55 IN A 44.207.96.114 ;; Query time: 7 msec ;; SERVER: 114.114.114.114#53(114.114.114.114) ;; WHEN: Fri Aug 05 22:40:44 CST 2022 ;; MSG SIZE rcvd: 97
# 编辑 /etc/host sudo vi /etc/host # 从上面选择一个 IP 增加 44.194.5.25 registry-1.docker.io
