Man pages matching name ypserv.conf in section 5:

ypserv.conf.5.ja	debian 10 / manpages-ja
ypserv.conf.5.en	debian 10 / nis
ypserv.conf.5.ja	debian 11 / manpages-ja
ypserv.conf.5.en	debian 11 / ypserv
ypserv.conf.5.ja	debian 12 / manpages-ja
ypserv.conf.5.en	debian 12 / ypserv