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ServisiServisi nana InternetuInternetu
-- uvoduvod --
drdr Nenad Nenad KrajnoviKrajnovićć
Katedra za telekomunikacije Katedra za telekomunikacije
Elektrotehnički fakultet BeogradElektrotehnički fakultet Beograd
Kako Kako ““radiradi”” GMAIL?GMAIL?
©Krajko©Krajko 22
GMAILGMAIL
INTERNET
HTTPS
saobraćaj
©Krajko©Krajko 33
INTERNET
Podržava IPv6 u komunikaciji.
GMAILGMAIL
INTERNET
(SM
TP
)
SMTP
©Krajko©Krajko 44
(IMAP4, POP3)(S
MT
P)
U internoj komunikaciji
Google verovatno
koristi i neke druge
protokole
Gmail i IPv6Gmail i IPv6To ensure that Gmail can identify you:To ensure that Gmail can identify you:
–– Use a consistent IP address to send bulk mail.Use a consistent IP address to send bulk mail.
–– Keep valid reverse DNS records for the IP address(Keep valid reverse DNS records for the IP address(eses) from which you send mail, pointing to ) from which you send mail, pointing to
your domain. Use the same address in the 'From:' header on every bulk mail you send.your domain. Use the same address in the 'From:' header on every bulk mail you send.
We also recommend the following:We also recommend the following:–– Sign messages with DKIMSign messages with DKIM11. We do not authenticate messages signed with keys using fewer . We do not authenticate messages signed with keys using fewer
than 1024 bits.than 1024 bits.
–– Publish an SPFPublish an SPF22 record.record.–– Publish an SPFPublish an SPF record.record.
–– Publish a DMARCPublish a DMARC33 policy.policy.
Additional guidelines for IPv6Additional guidelines for IPv6–– The sending IP must have a PTR record (i.e., a reverse DNS of the sending IP) and it should The sending IP must have a PTR record (i.e., a reverse DNS of the sending IP) and it should
match the IP obtained via the forward DNS resolution of the hostname specified in the PTR match the IP obtained via the forward DNS resolution of the hostname specified in the PTR
record. Otherwise, mail will be marked as spam or possibly rejected.record. Otherwise, mail will be marked as spam or possibly rejected.
–– The sending domain should pass either SPF check or DKIM check. Otherwise, mail might be The sending domain should pass either SPF check or DKIM check. Otherwise, mail might be
marked as spam.marked as spam.
©Krajko©Krajko 55
1 www.dkim.org
DomainKeys
Identified Mail
2 www.openspf.org
Sender Policy
Framework
3 dmarc.org
Domain-based Message
Authentication, Reporting &
Conformance
Kako Kako ““radiradi”” Facebook?Facebook?
©Krajko©Krajko 66
FacebookFacebook
INTERNET
HTTPS
saobraćaj
©Krajko©Krajko 77
INTERNET
Podržava IPv6 u komunikaciji.
Kako Kako ““radiradi”” YouTube?YouTube?
©Krajko©Krajko 88
YouTubeYouTube
INTERNET
DNS
saobraćaj
©Krajko©Krajko 99
INTERNET
HTTP HTTP
saobraćajsaobraćaj
Podržava IPv6 u komunikaciji.
ServisiServisi nana InternetuInternetu
-- uvoduvod --
ddr r Nenad Nenad KrajnoviKrajnovićć
Katedra za telekomunikacije Katedra za telekomunikacije
Elektrotehnički fakultet BeogradElektrotehnički fakultet Beograd
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