Dynmc DNS (DDNS) s mthd f tmtclly pdtng nm srvr n th Dmn Nm Systm (DNS), ftn n rl tm, wth th ctv DDNS cnfgrtn f ts cnfgrd hstnms, ddrsss r thr nfrmtn.
Th trm s sd t dscrb tw dffrnt cncpts. Th frst s "dynmc DNS pdtng" whch rfrs t systms tht r sd t pdt trdtnl DNS rcrds wtht mnl dtng. Ths mchnsms s TSG t prvd scrty. Th scnd knd f dynmc DNS prmts lghtwght nd mmdt pdts ftn sng n pdt clnt, whch d nt s th RFC 2136 stndrd fr pdtng DNS rcrds. Ths clnts prvd prsstnt ddrssng mthd fr dvcs tht chng thr lctn, cnfgrtn r P ddrss frqntly.