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documentation: document nss-systemd's internal environment variables in ENVIRONMENT.md

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Lennart Poettering 2017-09-20 18:28:29 +02:00
parent f1c50becda
commit dba1bd4396
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ENVIRONMENT.md
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@ -64,3 +64,17 @@ installed systemd tests:
* `$SYSTEMD_TEST_DATA` — override the location of test data. This is useful if
a test executable is moved to an arbitrary location.
nss-systemd:
* `$SYSTEMD_NSS_BYPASS_SYNTHETIC=1` — if set, `nss-systemd` won't synthesize
user/group records for the `root` and `nobody` users if they are missing from
`/etc/passwd`.
* `$SYSTEMD_NSS_DYNAMIC_BYPASS=1` — if set, `nss-systemd` won't return
user/group records for dynamically registered service users (i.e. users
registered through `DynamicUser=1`).
* `$SYSTEMD_NSS_BYPASS_BUS=1` — if set, `nss-systemd` won't use D-Bus to do
dynamic user lookups. This is primarily useful to make `nss-systemd` work
safely from within `dbus-daemon`.