Solved

Exchange Online and Office 365 firewall settings for internal and external access.

Posted on 2014-04-23
5
2,861 Views
Last Modified: 2014-05-25
I am preparing for Exchange Online to migrate all of our mailboxes to the cloud using a hybrid solution offered by microsoft. In that solution, they have stated a requirement to have an ADFS server and an DirSync server.

Now when I build our servers, all the ports are locked down by default by our hosting company. I am trying to keep this as secure as possible. I am assuming that ADFS needs to be externally facing. What ports will I need to open for the external connectivity.

Also what ports will i require for the internal connectivity between our internal servers.

Lastly, does the DirSync tool need external access and if so what ports are required internally and externally or does the DirSync just need to connect to the ADFS server from the Domain Controller?

 Please help! Newbie with Office 365.
0
Comment
Question by:MSSC_support
  • 3
  • 2
5 Comments
 
LVL 40

Expert Comment

by:Vasil Michev (MVP)
ID: 40017788
You can review all the URLs/IPs and Ports needed here:

http://technet.microsoft.com/en-us/library/hh852522.aspx

http://technet.microsoft.com/library/hh373144.aspx

Depending on which services you are going to use, you might not need some of those. Dirsync needs external access, on 443 (and 80). Use AD FS proxies for external access, the port is again 443.
0
 

Accepted Solution

by:
MSSC_support earned 0 total points
ID: 40019527
Thats great, how about the internal ports I will need?
0
 
LVL 40

Expert Comment

by:Vasil Michev (MVP)
ID: 40019729
For AD FS you need 443, dirsync uses LDAP ones.
0
 

Author Comment

by:MSSC_support
ID: 40078016
Got it. Thanks All.
0
 

Author Closing Comment

by:MSSC_support
ID: 40089266
The site had all the ports i required.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Microsoft Office Picture Manager was included in Office 2003, 2007, and 2010, but not in Office 2013. Users had hopes that it would be in Office 2016/Office 365, but it is not. Fortunately, the same zero-cost technique that works to install it with …
Cloud-based technologies and services will continue to grow in popularity in 2017 thanks to the simple, scalable and cost-effective solutions they deliver. Here are three areas where cloud adoption is poised to really take off.
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
A company’s greatest vulnerability is their email. CEO fraud, ransomware and spear phishing attacks are the no1 threat to a company’s security. Cybercrime is responsible for the largest loss of money to companies today with losses projected to r…

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question