Question about dns ?

[kadi]

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. :)

[falko]

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

[kadi]

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:)

[falko]

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

[kadi]

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

[falko]

hello again
how do i check to see which ports are open
from my ISP ?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.

and which ones should be important to be
opened beside 53 ,80 ,21 25 ?

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

[kadi]

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:)

[falko]

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