DNS 101

Link Layer (MAC, PPP, ISDN, Ethernet, DSL, etc.)

Internet Layer (IPv4, IPv6, ICMP, IPSec, etc.)

Transport Layer (TCP, UDP, etc.)

Application Layer (HTTP, FTP, DNS, DHCP, SMTP, SSH, POP, LDAP, IMAP, etc.)

DNS entities

client name server

top level domain (.ar) doman registry

server

DNS entities

chrome 37.0 name server (ns27.aws.com)

top level domain (.ar) doman registry (ombushop.com.ar -> ns27.aws.com)

server (50.16.123.45)

etagwerker:~/ $ host ombushop.com.ar ombushop.com.ar has address 50.16.123.45 etagwerker:~/ $ host ombushop.com ombushop.com has address 50.16.123.45 ombushop.com mail is handled by 1 aspmx.l.google.com. ombushop.com mail is handled by 10 aspmx2.googlemail.com. ombushop.com mail is handled by 10 aspmx3.googlemail.com. ombushop.com mail is handled by 5 alt1.aspmx.l.google.com. ombushop.com mail is handled by 5 alt2.aspmx.l.google.com.

Terminal’s `host` (Mac OS X)

DNS

1. www.nombre.com -> IP

2. CNAME record

3. A record

4. MX récord

5. TTL

etagwerker:~/ $ host ombushop.com ombushop.com has address 50.16.123.45

IP Address

etagwerker $ host www.vidrieras.in www.vidrieras.in is an alias for appname.herokuapp.com. appname.herokuapp.com is an alias for us-east-1-a.route.herokuapp.com. us-east-1-a.route.herokuapp.com has address 23.21.130.129

CNAME records

etagwerker $ host ombushop.com ombushop.com has address 50.16.123.45

A records

etagwerker $ host ombushop.com ombushop.com mail is handled by 1 aspmx.l.google.com. ombushop.com mail is handled by 10 aspmx2.googlemail.com. ombushop.com mail is handled by 10 aspmx3.googlemail.com. ombushop.com mail is handled by 5 alt1.aspmx.l.google.com. ombushop.com mail is handled by 5 alt2.aspmx.l.google.com.

MX records

@ A - 50.16.123.45 - TTL: 3600 segundos www A - 50.16.123.45 - TTL: 3600 segundos

TTL ombushop.com

DNS entities

chrome 37.0 Fibertel’s DNS (ombushop.com.ar -> 50.16.123.45)

server (50.16.123.45)

¡Gracias! !

(Crea tu tienda online con tu propio dominio)