Question about dns ?

hello
I have about 40 sites on my server
and i bought a DNS from my registrar
i just wonder can i use this one dns
for all these site ? as A record ?
Thanks any advice will be great.

 

What do you mean you bought a DNS? Does that mean you can use your registrar's name servers for all your domains?

 

Thanks for your reply

hello mr/falko
Sorry it was the wrong word i ment i Paid for it.
I have a domain registered with my registrar
(mydomain.com) which is the one i used with my server
as FQDN, my isp closed some ports, so i asked the
registrar about dns, they said to choose a domain
to use for this dns, so i choose this one FQDN
that i use for the server, the registrar put it on
this domain like when i try to edit the registry :
in front of this site on the right side it says : @DNS
when i paid for it i thought i can use one dns
for all my sites, but when i emailed them they said
no this is for one domain only! i don't understand !do i have
to pay for dns for each domain (site) ? i have about 45 sites
I thought i can use one dns for all the sites.
I only have option to add 3 A record.
Thanks very much for your great support and help

 

Usually registrars charge you for every zone (domain) that you host on their DNS servers.

 

Thanks again for your reply

hello again
how do i check to see which ports are open
from my ISP ?
and which ones should be important to be
opened beside 53 ,80 ,21 25 ?
some people said i should check it from
outside the network ?
Thanks very much again

 

You can either try to connect to these ports from outside your network (make sure that there's a service listening on the port you try), or you ask your ISP.

21, 21: FTP
22: SSH
25: SMTP
53 (TCP and UDP): DNS
80: HTTP
81: ISPConfig
110: POP3
143: IMAP
443: HTTPS
993: IMAPS
995: POP3S
10000: Webmin

 

Thanks very much for your reply

Hello mr/Falko again
I just have another question:
I have one dns from the registrar on
the domain FQDN , then now i was able
to get dns 1 & 2 from my ISP :
which one i use on ISPConfig Management/Settings
also my isp gave me only numbers, i asked them
for character address they said dns is only numbers
and godaddy does not accept numbers for some
reason when i enter numbers it says Error.
Thanks again i appreciate your help

 

You mean you want to run your own name servers with ISPConfig? Take a look here:
http://www.howtoforge.com/ispconfig_dns_godaddy
http://www.howtoforge.com/ispconfig_dns_providerdomain_schlund