[Unit]
Description=YP Bind
Documentation=man:ypbind(8)
Requires=rpcbind.service domainname.service
After=rpcbind.service domainname.service network.target
Before=systemd-user-sessions.service
#Conflicts=shutdown.target

[Service]
Type=forking
PIDFile=/run/ypbind.pid
ExecStart=/usr/sbin/ypbind -no-dbus
ExecStartPost=/bin/sh -c "for ((i=0;i<5;i++)); do ypwhich >/dev/null || { sleep 1; continue; }; break; done"

[Install]
WantedBy=multi-user.target