nss-mymachines (8) - Linux Manuals

nss-mymachines: Provide hostname resolution for local container instances.


nss-mymachines, libnss_mymachines.so.2 - Provide hostname resolution for local container instances.




nss-mymachines is a plugin for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc) providing hostname resolution for containers running locally, that are registered with systemd-machined.service(8). The container names are resolved to IP addresses of the specific container, ordered by their scope.

To activate the NSS modules, "mymachines" has to be added to the line starting with "hosts:" in /etc/nsswitch.conf.

It is recommended to place "mymachines" near the end of the nsswitch.conf line to make sure that this mapping is only used as fallback, and any DNS or /etc/hosts based mapping takes precedence.


Here's an example /etc/nsswitch.conf file, that enables mymachines correctly:

passwd:   compat
group:    compat
shadow:   compat

hosts:    files dns mymachines myhostname
networks:       files

protocols:      db files
services:       db files
ethers:   db files
rpc:      db files

netgroup:       nis