We're on Fedora 25 using NIS and occasionally workstations will fail to login to their NIS accounts. Local accounts, root, etc. continue to work. Here are some logs that seem to point to GDM. Is there a better place to post this? Once I restart ypbind everything usually works.
Jan 25 13:32:18 linux-user-115 dbus-daemon[840]: [system] Successfully activated service 'net.reactivated.Fprint'
Jan 25 13:32:18 linux-user-115 systemd: Started Fingerprint Authentication Daemon.
Jan 25 13:32:18 linux-user-115 audit: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=fprintd comm="systemd" exe="/usr/lib/systemd/systemd" hostname
Jan 25 13:32:18 linux-user-115 gdm-password]: AccountsService: ActUserManager: user (null) has no username (uid: 0)
Jan 25 13:32:20 linux-user-115 journal: g_dbus_connection_signal_unsubscribe: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
Jan 25 13:32:20 linux-user-115 journal: g_dbus_connection_signal_unsubscribe: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
Jan 25 13:32:43 linux-user-115 audit: USER_AUTH pid=4791 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:authentication grantors=? acct="?" exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=/dev/tty1 res=failed'
Jan 25 13:32:45 linux-user-115 audit: USER_LOGIN pid=4791 uid=0 auid=4294967295 ses=4294967295 msg='acct=kbravo exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=? res=failed'
Jan 25 13:32:46 linux-user-115 gdm-password]: AccountsService: ActUserManager: user (null) has no username (uid: 0)
Jan 25 13:32:48 linux-user-115 audit: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=fprintd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jan 25 13:32:49 linux-user-115 audit: USER_AUTH pid=4800 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:authentication grantors=? acct="?" exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=/dev/tty1 res=failed'
Jan 25 13:32:49 linux-user-115 dbus-daemon[840]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.30' (uid=42 pid=1847 comm="/usr/bin/gnome-shell ")
Jan 25 13:32:49 linux-user-115 systemd: Starting Fingerprint Authentication Daemon...
Jan 25 13:32:49 linux-user-115 journal: ActUserManager: user (null) has no username (uid: 0)
Jan 25 13:32:49 linux-user-115 gdm: GdmSession: conversation gdm-password started more than once
Jan 25 13:32:49 linux-user-115 journal: JS ERROR: Failed to start verification for user: Gio.DBusError: GDBus.Error:org.freedesktop.DBus.Error.Spawn.Failed: Could not create authentication helper process#012ShellUserVerifier<._startService/<@resource:///org/gnome/shell/gdm/util.js:427
Jan 25 13:32:49 linux-user-115 audit: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=fprintd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jan 25 13:32:49 linux-user-115 dbus-daemon[840]: [system] Successfully activated service 'net.reactivated.Fprint'
Jan 25 13:32:49 linux-user-115 systemd: Started Fingerprint Authentication Daemon.
Jan 25 13:32:52 linux-user-115 journal: ActUserManager: user (null) has no username (uid: 0)
Jan 25 13:32:52 linux-user-115 gdm-password]: AccountsService: ActUserManager: user (null) has no username (uid: 0)
Jan 25 13:33:19 linux-user-115 audit: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=fprintd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jan 25 13:33:29 linux-user-115 audit: USER_AUTH pid=4809 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:authentication grantors=? acct="?" exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=/dev/tty1 res=failed'
Jan 25 13:33:30 linux-user-115 audit: USER_LOGIN pid=4809 uid=0 auid=4294967295 ses=4294967295 msg='acct=kbravo exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=? res=failed'
Jan 25 13:33:31 linux-user-115 dbus-daemon[840]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.30' (uid=42 pid=1847 comm="/usr/bin/gnome-shell ")
