Infosec returing error on Lync Edge Server "3.2.5. Database Open Access (database-open-access)"
I am working on a deployment and in order to get the ports opened to the outside world the InfoSec team runs a scan against the Edge servers. They have come back with the following issue. Has anyone run across this and how do you work around it?
.2.5. Database Open Access (database-open-access)
Description:
The database allows any remote system the ability to connect to it. It is recommended to limit direct access to trusted systems because
databases may contain sensitive data, and new vulnerabilities and exploits are discovered routinely for them. For this reason, it is a
violation of PCI DSS section 1.3.7 to have databases listening on ports accessible from the Internet, even when protected with secure
authentication mechanisms.
Affected Nodes:
Affected Nodes: Additional Information:
69.197.x.x:1434 Running Microsoft SQL Monitor service
Page 17
Audit Report
Affected Nodes: Additional Information:
69.197.x.x:52591 Running TDS service
69.197.x.x:1434 Running Microsoft SQL Monitor service
69.197.x.x:51773 Running TDS service
References:
Source Reference
URL
https://www.pcisecuritystandards.org/security_standards/download.html?id=pci_dss_v1-2.pdf
Vulnerability Solution:
Configure the database server to only allow access to trusted systems. For example, the PCI DSS standard requires you to place the
database in an internal network zone, segregated from the DMZ
Hi,
Would you please tell us which ports did you open for Edge server?
It seems you open the wrong port from Edge server, please open the right ports for both Edge internal and external interface with the help of the link below:
http://technet.microsoft.com/en-us/library/gg425891.aspx
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support
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Proto Local Address Foreign Address State PID
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4
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TCP 0.0.0.0:47001 0.0.0.0:0 LISTENING 4
TCP 0.0.0.0:49152 0.0.0.0:0 LISTENING 468
TCP 0.0.0.0:49153 0.0.0.0:0 LISTENING 844
TCP 0.0.0.0:49154 0.0.0.0:0 LISTENING 896
TCP 0.0.0.0:49338 0.0.0.0:0 LISTENING 1400
TCP 0.0.0.0:56483 0.0.0.0:0 LISTENING 572
TCP 0.0.0.0:56966 0.0.0.0:0 LISTENING 564
TCP 0.0.0.0:56967 0.0.0.0:0 LISTENING 2824
TCP 192.100.100.84:139 0.0.0.0:0 LISTENING 4
TCP 192.100.100.84:444 0.0.0.0:0 LISTENING 1768
TCP 192.100.100.84:5061 0.0.0.0:0 LISTENING 1908
TCP 192.100.100.84:5061 68.34.170.246:52296 CLOSE_WAIT 1908
TCP 192.100.100.84:5061 68.34.170.246:52297 CLOSE_WAIT 1908
TCP 192.100.100.84:5061 68.34.170.246:53570 CLOSE_WAIT 1908
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TCP 192.100.100.85:5062 0.0.0.0:0 LISTENING 1844
TCP 192.100.100.85:5062 192.100.100.83:53701 ESTABLISHED 1844
TCP 192.100.100.85:5062 192.100.100.83:53967 ESTABLISHED 1844
TCP 192.100.100.85:8057 0.0.0.0:0 LISTENING 1768
TCP 192.100.100.85:8057 192.100.100.83:56612 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56617 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56618 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56619 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56620 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56628 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56629 ESTABLISHED 1768
TCP 192.100.100.85:8057 192.100.100.83:56670 ESTABLISHED 1768
TCP 192.100.100.85:57577 192.100.100.146:5357 TIME_WAIT 0
TCP 192.100.100.85:57579 192.100.100.175:5357 TIME_WAIT 0
TCP 192.100.100.85:57583 192.100.100.159:5357 TIME_WAIT 0
TCP 192.100.100.85:57584 192.100.100.147:5357 TIME_WAIT 0
TCP 192.100.100.85:57585 192.100.100.242:3911 TIME_WAIT 0
TCP [::]:80 [::]:0 LISTENING
4
TCP [::]:135 [::]:0 LISTENING
756
TCP [::]:443 [::]:0 LISTENING
4
TCP [::]:445 [::]:0 LISTENING
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TCP [::]:3389 [::]:0 LISTENING
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TCP [::]:4443 [::]:0 LISTENING
4
TCP [::]:47001 [::]:0 LISTENING
4
TCP [::]:49152 [::]:0 LISTENING
468
TCP [::]:49153 [::]:0 LISTENING
844
TCP [::]:49154 [::]:0 LISTENING
896
TCP [::]:49338 [::]:0 LISTENING
1400
TCP [::]:56483 [::]:0 LISTENING
572
TCP [::]:56966 [::]:0 LISTENING
564
TCP [::]:56967 [::]:0 LISTENING
2824
TCP [2002:c064:6454::c064:6454]:4443 [2002:c064:6453::c064:6453]:54033 ESTABLISHED 4
TCP [2002:c064:6454::c064:6454]:57581 [2002:c064:64ab::c064:64ab]:445 ESTABLISHED 4
TCP [2002:c064:6454::c064:6454]:59957 [2002:c064:640c::c064:640c]:445 ESTABLISHED 4
UDP 0.0.0.0:123 *:*
948
UDP 0.0.0.0:500 *:*
896
UDP 0.0.0.0:1434 *:*
1976
UDP 0.0.0.0:4500 *:*
896
UDP 0.0.0.0:5355 *:*
140
UDP 127.0.0.1:51664 *:*
1172
UDP 127.0.0.1:56155 *:*
2924
UDP 127.0.0.1:59005 *:*
964
UDP 127.0.0.1:62503 *:*
1680
UDP 127.0.0.1:62786 *:*
572
UDP 127.0.0.1:62788 *:*
140
UDP 127.0.0.1:64531 *:*
896
UDP 127.0.0.1:65160 *:*
1844
UDP 192.100.100.84:137 *:*
4
UDP 192.100.100.84:138 *:*
4
UDP [::]:123 *:*
948
UDP [::]:500 *:*
896
UDP [::]:1434 *:*
1976
UDP [::]:4500 *:*
896
UDP [::]:5355 *:*
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Outbound Calls stop working when Lync Edge server is offline
All,
We have had an issue inside our environment after one of our virtual hosts died and took out our sole Edge server, basically users could not dial out and were getting the error "Network is busy" on the client. Internal dialling worked perfectly to our Lync
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For the time being you may want to remove the Edge from the topology, then Lync checks against the Front End server.
I hope you do understand, that this is not a great solution, but a drastic workaround suggestion to a hidden product defect! In hidden product defect I mean Microsoft Lync document team is cynically silent and trying to cover the tracks of this product defect.
What I would consider as a straight and honest retroactive action for the Lync document team, to add a big warning section to a) single server edge deployment page + b) the Call Admission Control caveats page on Technet:
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But I think that warning message is way too much to ask for, thatswhy is this 2,5 years old topic still open. -
Problems with SNOM 7XX phones and presence of Lync Edge server
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Thanks
AurelioHi,
Thanks to all for yours support.
Today, we have done some test (no employee in office today
J) and we have solved the problems.
The old implementation have had this configuration:
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rules:
Starting digits: 01234567
Length: At least 8 digits
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Digit to add: nothing
Pattern to match ^(01234567\d*)$
All worked fine with this previous configuration:
Lync 2010 std with only mediation server function + Lync 2013 std front-end with all the others functions and Lync 2013 std Edge server for external connection with
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Today we have done this operation:
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Digit to remove 0
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We have solved another problem:
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http://technet.microsoft.com/en-us/library/jj205160.aspx
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Any reason not to put Lync Edge server on the same server that runs Web Application Proxy?
We're currently running Lync 2010 standard server, without an edge server or reverse proxy. I'm working on migrating to lync 2013 standard server, and would like to add the edge functionality in the process. I have a Server 2012R2 in the dmz,
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with a supported configuration.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications -
Lync Edge Server 2013 Certificate Issue seems unresolvable
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Tnx,
GuidoPlease check the DNS records for sip.ipabo.nl and webconf.ipabo.nl are created on external DNS server.
Please check you can telnet Lync Edge Access service FQDN on 443 port.
Check the automatic configuration for remote access is configured correctly or you can try to sign in manually.
Follow the steps in blog blow to test your Edge Server:
http://blogs.technet.com/b/nexthop/archive/2011/12/07/useful-tips-for-testing-your-lync-edge-server.aspx
Lisa Zheng
TechNet Community Support -
Hi,
I am planning to deploy 1 Lync Edge Server but the problem is we only have one public IP address. This will be deployed on a Hyper-V VM with 2 NICS installed. All tutorials I have read pertains on having 3 public IP address. The purpose is only to try Skype
federation. Our Front Edge currently works well internally. Is there any way I can deploy an Edge Server with only one Public IP?
Thanks,
-Ed-Hi Ed,
Although it is best practice to use 3 public IPs for your Edge deployment, you can indeed use just a single public IP - this is a completely supported configuration.
The reason for using 3 public IPs is so that all three Edge services (Access, AV, Conf) can all use port 443 without any conflict. If you choose to use a single IP like you suggest, then naturally these three services can't all use 443.
When you are deploying your new Edge server and configuring it in the Topology Builder, there will come a point where it will ask you if you want to use a single IP for all services. If you choose to do so, you will see that it will automatically change
the Edge services to use varying ports (5061,443,444) instead of all on 443.
Deployment of your Edge will allow external clients to sign in. However, keep in mind that external access and functionality is two part, and the deployment of a reverse proxy is required to allow mobile client sign-in and a vast array of other features
including;
• Allows external users to download meeting content for your meetings.
• Allows external users to expand distribution groups.
• Allows remote users to download files from the Address Book service.
• Allows access via the Lync Web App client.
• Provides access to the Dial-in Conferencing Settings webpage.
• Provides access to the Location Information service.
• Provides external devices access to the Device Update web service.
• Enables Lync mobile applications to discover and use the mobility URLs
• Allows Lync 2013 clients to leverage Lync Discover URLs
Importantly, your Reverse Proxy will also need a public IP.
In short, you can gain limited external connectivity with a single public IP, but if you want a FULL external feature set you will need 2 public IPs at the very least.
You cannot collocate the reverse proxy with the Edge, or use the same IP for both.
Hope that helps.
Kind regards
Ben -
LYNC EDGE Server NIC Card Setup
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Here's an article from David Paulino who's also been through it:
http://uclobby.com/2014/04/17/lync-edge-server-on-a-single-subnet/
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications -
Lync Edge Server required for Sykpe Federation
I have a very simple and quick question I hope some people can help a newbie to Lync 2013 with.
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My question is though... can I install the "Lync 2013 Edge Server" role on the same server as my Front End Lync Server? I really dont want to pay for another Windows license to have a Lync Edge Server in my DMZ.
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Thanks in advance everyone!Hi,
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David -
Lync edge server for site with 2500 users
Dear All,
I have a question with regards to the implementation of lync edge server deployment.
One of our client having lync deployment with 4000 users in a central site with 3 FE EE and edge pool with 2 Edge servers, there are planning for a new site with 2500 users.
what will be the best method for the site implementation , shall we deploy a SE Fe server and all the external communication through the Central site Edge server?
or is it required to have a separate pool for site?
please help meAgree with the others. So, there's two questions, "what will be the best method for the site implementation?" and "is it required to have a separate pool for site?".
The best method I'd suggest is use Enterprise Edition Lync so you can perform pool pairing for resiliency, and have a local edge pool as the others suggested. You have enough users to support this, and with growth you might want to be able to scale
up anyway.
Is it required? Not at all. You can send them all through the central site edge server, it's possible and fully supported. It's up to you, but I'd suggest the separate pool.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications -
Deploy Lync Edge Server.
Hi,
We have a Lync 2013 Server. We're plan to deploy a Lync Edge Server. I just read some articles about the depoyment. I'm wondering why Lync Edge Server cannot be installed on a server with one NIC. We've 1 firewall, configured with a interface in the
LAN subnet and a interface configured in the DMZ subet. I want to install the Lync Edge Server with one NIC configured in the DMZ subnet and route all the internal traffic trought the firewall. But none of the articles recommend this scenario. Why not?Hi,
You're Lync 2013 Edge server requires two network interfaces, each residing on a different subnet - this part isn't debatable and is required in order to be a supported deployment (much less have it actually work). However its not uncommon to come across
your scenario.
As you only have a single firewall, your two options are;
1.) External interface of the Edge server in the existing DMZ subnet, and Internal interface of the edge server directly on the LAN. (this is the least preferred option of all scenarios, but is a supported topology)
2.) External interface of the Edge server in the existing DMZ subnet, and then create a second DMZ subnet to put the internal interface of the Edge server in. You would have to create an interface on your existing firewall in this subnet as well, essentially
routing traffic back to the same firewall hardware but via a different subnet. This is commonly referred to as a 'three-legged' firewall. From there the traffic can go to the LAN. This is also supported, and is more preferred than option one
The optimal solution, and the one you have probably seen in diagrams is to have back to back firewalls creating a true DMZ with the Edge server sat in between, The external interface of the edge server is on the same subnet as the internal facing adaptor
on the outer firewall, and the internal interface of the edge server is on the same subnet as the external facing adaptor of the inner firewall. This is the preferred solution, but not achievable in your current setup without the introduction of additional
components.
Of the two options applicable to you (1and2), option 2 is preferred. Both are considered less secure than option 3 from a security perspective as there is only a single firewall to breach, where as option three has layered security.
This is a very common scenario for smaller organisations - feel free to ask any further questions.
Kind regards
Ben
Note: If you find a post informative, please mark it so using the arrow to the left. If it answers a question you've asked, please mark the thread as answered to aid others when they're looking for solutions to similar problems or queries.
For Fun: Gecko-Studio | For Work:
Nexus Open Systems -
Lync Edge server on windows 2012 R2 prequistes
What, if any, are the perquisites for install lync 2013 edge server on Windows 2012 R2. I have looked around and only found information for Windows 2012 and it requiring WIF 3.5. Is this required for R2 as when you go to install it you get:
is it required and do I require anything else?
ThanksHi,
Agree with Georg.
What’s more, you can refer to the link of “Installing Lync 2013 Edge Server”, it is Windows Server 2012 Standard or Datacenter, but similar for Windows Server 2012 R2:
http://www.orcsweb.com/blog/cory-granata/installing-lync-2013-edge-server/
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
If you not choose all required roles and features, when you running Lync Server deployment Wizard and running steps, you will receive error and point out what you need to install.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support -
Lync Edge Server External Private Certificate
Hey GURUS!
Please help me out:
I'm having issues accessing Lync from external network.
Mobile clients login fine, but computer clients fail to login.
My current deployment consists in a single 2013 front-end and a single 2013 edge server.
All servers have certificates from my internal CA.
All servers have the root CA certificate installed in the trusted root certificate authority.
I have 2 sip domains, and the edge certificate has both sip domains.
However, when I test from test connectivity.microsoft.com, I get an error regarding the certificate chain.
I can't understand why lync requires a intermediate certificate, if I don't have any published in my organisation.
The certificate path goes: Root CA -> Certificate.
Also, the lync discover test runs with no errors what so ever.
This error on the edge didn't occur when I had lync 2010 running.
Does anyone know how to solve this?
Thanks!
Andrey Santana
edit: i forgot to upload the screenshotThiago,
The certificates from the Front End / Reverse Proxy are also from the internal CA and I don't get the error, it actually runs successfully.
Andrey
How did you test the certificates from the Front End and Reverse Proxy Server?
The public website connectivity.microsoft.com need a public certificate.
But if you use private certificate in lab, it could work as long as you install the Root CA certificate on client computer.
Lisa Zheng
TechNet Community Support -
Can't assign certificate in Lync Edge Server
Hello, everyone
I've installed Lync Server, internally it works fine, but while i'm deploying edge server, i have a certificate problem. On request assign certificate step, I've issued by online certificate authority, after request i see following error:
The certificate has been issued by the online certification authority and is installed to the local certificate store, however it is not valid. Make sure that the Root certificate, and necessary certificate chain is installed on this server.
I've downloaded root certificate from CA and imported to trusted root certificate of edge server. I think root certificate is valid, because non domain members which imported root certificate, sign in Lync successfully.
I also sent offline certificate request (http://technet.microsoft.com/en-us/library/gg412750.aspx), importing certificate was successful. But there are no certificates in assign
certificate wizard. I checked personal certificates using mmc, there were certificates i have requested.
How can I solve this problem? Please help me!
Regards and thanks for any help :)
EnkheeHi,
You need to access htt://CAserver/certsrv to download the certificate chain in the edge server. Open MMC and install the Certificate chain with the following steps(To import the CA certification chain for the internal interface ):
http://technet.microsoft.com/en-us/library/gg412750.aspx
Check whether the Certificate chain is installed successfully in the
Trusted Root Certification Authorities.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. -
Lync Edge Server (step 3)
Hi All,
Need help on Lync Edge Configuration.
I've 1 lync FE & 1 Lync Edge. I'm successfully install Lync FE.
Problem come on Edge Lync Setup.
Step 1 : Install local Configuration Store (Complete)
Step 2 : Setup or remove lync server component (Complete)
step 3 : Request install or assigned certificates. ( I've assign certificate for both Internal & External but the status for step 3 not showing "Complete")
I cannot proceed to step 4 (start Service) until step 3 is complete.
Kindly help me on this issue.
Thank you.Hi,
I'd restart your Edge server if you haven't already done so, and check that you have not accidentally assigned the certificate to only specific Edge services and Sneff_Gabor suggested.
Could you confirm that you used the Lync Certificate Wizard to generate the CSR's for these cert's rather than generating them through some other means?
If you haven't already done so, import and assign the certificates for a second time post Edge restart to see if this makes a difference.
If you're using a third party public certificate for you external Edge services, make sure that you have any required root and intermediate certificates in place for a valid chain. You can check this by viewing the certificate details and looking
at the 'certification path' tab to ensure your public certificate is trusted.
If you don't have any luck, create a new CSR for your External Edge services and generate a certificate from your internal CA rather than through a public CA and assign that. This will tell you if it's the external certificate that's causing an upset.
Can you confirm the 'public key' and 'signature algorithm' on the details tab of both certificates?
Kind regards
Ben
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