NAME

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

SYNOPSIS

       libnss_mymachines.so.2

DESCRIPTION

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

       The module also resolves user and group IDs used by containers to user and group names indicating the
       container name, and back. This functionality only applies to containers using user namespacing.

       To activate the NSS module, add "mymachines" to the lines starting with "hosts:", "passwd:" and "group:"
       in /etc/nsswitch.conf.

       It is recommended to place "mymachines" after the "files" or "compat" entry of the /etc/nsswitch.conf
       lines to make sure that its mappings are preferred over other resolvers such as DNS, but so that
       /etc/hosts, /etc/passwd and /etc/group based mappings take precedence.

EXAMPLE

       Here is an example /etc/nsswitch.conf file that enables nss-mymachines correctly:

           passwd:         compat mymachines systemd
           group:          compat mymachines systemd
           shadow:         compat

           hosts:          files mymachines resolve [!UNAVAIL=return] dns myhostname
           networks:       files

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

           netgroup:       nis

SEE ALSO

       systemd(1), systemd-machined.service(8), nss-systemd(8), nss-resolve(8), nss-myhostname(8),
       nsswitch.conf(5), getent(1)