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Making HTTP requests from a container that has no curl, using bash /dev/tcp

Hacker News·Making HTTP requests from a container that has no curl, using bash /dev/tcp·about 10 hours ago

#mareksuppa #bash #service #socket #port #article

Minimal container images often ship without curl, wget, or any HTTP client at all. Bash can open a TCP socket through /dev/tcp, which is enough to write a tiny HTTP/1.1 request by hand for quick checks.

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Making HTTP requests from a container that has no curl, using bash /dev/tcp