Nixpkgs: Using ssh fails with: No user exists for uid 17342423423

[hajdamak]

Issue description

Using ssh (and git via ssh) results in error: No user exists for uid 17342423423

Steps to reproduce

• Install single user Nix on Ubuntu 16.04 using nix-user-chroot method.
• Execute command ssh [email protected]

Technical details

• system: "x86_64-linux"
• host os: Linux 4.4.0-151-generic, Ubuntu, 16.04.6 LTS (Xenial Xerus)
• multi-user?: no
• sandbox: no
• version: nix-env (Nix) 2.2.2
• channels(rafalh): "nixpkgs-19.09pre185219.ed86bbad84c"
• nixpkgs: /home/rafalh/.nix-defexpr/channels/nixpkgs

[FRidh]

I encountered this at work where the host operating system used SSSD for authentication. If I recall correctly I had to LD_PRELOAD a certain library. If you think this is your issue, I can come back with the solution on Monday.

[hajdamak]

Yeah, seems like this might be it.

[FRidh]

I have in my ~/.bashrc:

export LD_PRELOAD=/lib/x86_64-linux-gnu/libnss_sss.so.2

[hajdamak]

This is it. Solved the problem. Thanks a lot.
Additional this fixes #64666