what is the difference between ddns and dns

[jraju]

what is ddns . Is it different from dns .
pppoe is the connection channel mode by the service provider.
what is pppoe1,
I do not find anything about this connection.
what is it, please tell me .
I find pppoe1 in my ddns in router page.
If i select ----in that to disable the ddns, on next router boot, it again gets ticked again.

[Boggin]

DDNS and DNS - https://www.differencebetween.com/difference-between-dns-and-vs-ddns/

PPOE - https://www.digitalcitizen.life/simple-questions-what-pppoe-and-what-does-it-do/

[jraju]

hi, boggins thanks for the links
As I already said , pppoe is the mode my ISP  and I have a user id and password to get the connection speed everything.
But pppoe1 is what i ask about,
I find some drop down address of dlink website, is always enabled, which I do not know, whether I need it or not.
Regarding dns , yes, I know that it is a server service of my ISP.
regarding ddns, though I know, it is a dlink website server website, why it is there and always enabled.
Is it another dns server that is really needed for functioning of the router

[Boggin]

I don't really bother with DNS although some years ago I experimented with others to see which gave me the best ping,

I wasn't able to find anything on ppoe1 either but as that seems to be a default setting in the router then I wouldn't worry about it.

If your broadband works without error then you should be okay.