IPSEC-LETSENCRYPT(8)

💖 IPSEC-LETSENCRYPT(8) 💖

okay bestie, gather round, because we're talking about ipsec-letsencrypt — she's the one who invokes Opportunistic Encryption utilities, and she's lowkey iconic for it 🦋

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✨ NAME ✨

ipsec-letsencrypt — invoke Opportunistic Encryption utilities 💅

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✨ SYNOPSIS ✨

ipsec letsencrypt [--client] [--server] [--test] [--disable] [--help]
                  [--generate-certificate hostname] [--renew hostname]

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✨ EXAMPLES ✨

ipsec letsencrypt { --client | --server | --test | --disable | --help }

ipsec letsencrypt { --generate-certificate | --renew } hostname

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✨ DESCRIPTION ✨

so the way letsencrypt works is — this command creates a secure Opportunistic Connection between the two hosts we all know and love as client and server 🫶 The client connects to the server and stays anonymous the whole time (mysterious. elusive. main character energy), whereas the server is authenticated before you connect to it. The server is not anonymous. The server uses Let's Encrypt certificates for authentication and encryption purposes. periodt 🔥

here's the whole option lineup, no skips, no crumbs:

• --client — for the initial client setup 🎀
• --server — for the initial server setup 👑
• --test — for testing the configuration/connection (vibe check, basically — but literally, this is what it does) 🌸
• --generate-certificate hostname — generates the certificate for the hostname ⭐
• --renew hostname — updates the generated certificate for the hostname, and it keeps the private key same 🔑
• --disable — disables IPsec service 💀
• --help — displays all the available options 🙈

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✨ SEE ALSO ✨

ipsec.conf(5) — go read her too, she's family 🧚

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✨ HISTORY ✨

Original Program written by <Rishabh[1]>. 💜

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✨ AUTHOR ✨

Andrew Cagney, Rishabh, Tuomo Soini 🌈

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✨ NOTES ✨

1. Rishabh https://github.com/Rishabh04-02/

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okay that's the whole page, you ate that read bestie 🍓💖

this was Libreswan 5.4.1, dated 10/23/2026, and yes she's serving IPSEC-LETSENCRYPT(8) realness — mwah 💅✨