map list:
services.byname
services.byservicename
services.byname
services.byservicename
contents of example.com:services.byname:
23/tcp	telnet 23/tcp telnet
23/udp	telnet 23/udp telnet
636/tcp	ldap-ssl 636/tcp ldaps ldap-ssl
636/udp	ldap-ssl 636/udp ldaps ldap-ssl
80/tcp	http 80/tcp http www
80/udp	http 80/udp http www
992/tcp	telnets 992/tcp telnets
992/udp	telnets 992/udp telnets
contents of example.com:services.byservicename:
http/tcp	http 80/tcp http www
http/udp	http 80/udp http www
ldap-ssl/tcp	ldap-ssl 636/tcp ldaps ldap-ssl
ldap-ssl/udp	ldap-ssl 636/udp ldaps ldap-ssl
ldaps/tcp	ldaps 636/tcp ldaps ldap-ssl
ldaps/udp	ldaps 636/udp ldaps ldap-ssl
telnet/tcp	telnet 23/tcp telnet
telnet/udp	telnet 23/udp telnet
telnets/tcp	telnets 992/tcp telnets
telnets/udp	telnets 992/udp telnets
www/tcp	www 80/tcp http www
www/udp	www 80/udp http www