POSTLOGIN(5)

💖 POSTLOGIN 💖

ok so bestie, this is the postlogin manual page from the Linux-PAM Manual, and honestly? it's a short one but she's IMPORTANT, so let's get into it 🫶

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✨ NAME ✨

postlogin — the common configuration file for PAMified services 🌸

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🎀 SYNOPSIS 🎀

/etc/pam.d/postlogin

that's it. that's the whole synopsis. she's a file, your honor 💅

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🦋 DESCRIPTION 🦋

okay so picture this: you've got a bunch of PAM modules that all need to run after the stack that's configured in system-auth (or one of the other common PAM configuration files) has done its thing. Where do they all go? Right here. That's literally the whole purpose of this PAM configuration file — it's the common hangout spot for all those late-to-the-party PAM modules. 💖

And the way it gets used? The postlogin configuration file is included from every single individual service configuration file that provides a login service with shell or file access. So like, it's not just sitting there being cute — it's getting pulled into all of them. no cap ✨

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👑 NOTES 👑

listen, this one matters so pay attention bestie:

• the modules in the postlogin configuration file are executed regardless of the success or failure of the modules in the system-auth configuration file.

like, they're running no matter what. success? running. failure? still running. she does not check the vibe first, she just goes. 😭

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💀 BUGS 💀

ngl, sometimes it would genuinely be useful to be able to skip the postlogin modules in case the substack of the system-auth modules failed. like, that would be so nice.

but unfortunately 💔 the current Linux-PAM library does not provide any way how to achieve this. so. we live in the timeline we live in. the modules are running. periodt.

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🌈 SEE ALSO 🌈

go read these too, they're all part of the lore:

• pam(8)
• config-util(5)
• system-auth(5)
• the three Linux-PAM Guides, for system administrators, module developers, and application developers 🧚

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and that's the whole page, bestie!! this one came from Red Hat, dated 2010 Dec 22, and it lives in the Linux-PAM Manual. iconic little file, honestly. mwah 💋💖