21.9. Peer Authentication#
The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.
The following configuration options are supported forpeer:
mapAllows for mapping between system and database user names. SeeSection 21.2 for details.
Peer authentication is only available on operating systems providing thegetpeereid() function, theSO_PEERCRED socket parameter, or similar mechanisms. Currently that includesLinux, most flavors ofBSD includingmacOS, andSolaris.