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-rw-r--r--README21
1 files changed, 14 insertions, 7 deletions
diff --git a/README b/README
index ca8993cb12..19c15a70b0 100644
--- a/README
+++ b/README
@@ -201,7 +201,7 @@ USERS AND GROUPS:
"systemd-coredump" system user and group to exist.
NSS:
- systemd ships with three NSS modules:
+ systemd ships with four glibc NSS modules:
nss-myhostname resolves the local hostname to locally
configured IP addresses, as well as "localhost" to
@@ -210,15 +210,22 @@ NSS:
nss-resolve enables DNS resolution via the systemd-resolved
DNS/LLMNR caching stub resolver "systemd-resolved".
- nss-mymachines enables resolution of all local containers
- registered with machined to their respective IP addresses.
+ nss-mymachines enables resolution of all local containers registered
+ with machined to their respective IP addresses. It also maps UID/GIDs
+ ranges used by containers to useful names.
- To make use of these NSS modules, please add them to the
- "hosts: " line in /etc/nsswitch.conf. The "resolve" module
- should replace the glibc "dns" module in this file.
+ nss-systemd enables resolution of all dynamically allocated service
+ users. (See the DynamicUser= setting in unit files.)
- The three modules should be used in the following order:
+ To make use of these NSS modules, please add them to the "hosts:",
+ "passwd:" and "group:" lines in /etc/nsswitch.conf. The "resolve"
+ module should replace the glibc "dns" module in this file (and don't
+ worry, it chain-loads the "dns" module if it can't talk to resolved).
+ The four modules should be used in the following order:
+
+ passwd: compat mymachines systemd
+ group: compat mymachines systemd
hosts: files mymachines resolve myhostname
SYSV INIT.D SCRIPTS: