I'm having issues with active directory. I first noticed that I was unable to use gpupdate. Then I attempted to remove a machine from the domain and re-add it and was unable to do so. I also get a permission denied error on my shared printers.

I do not think the problem lies in DNS. When I try to add machines to the domain the resulting error shows the SRV record was queried and the domain controller was identified. but could not be contacted. I've checked the Host (A) records in DNS and they are fine, I've also tried adding a manual entry to the hosts file on the client machine.

sir,
Recently in my organization migrated server 2008 to 2012,but in all systems primary dns ip is 192.*.*.14,now my server migrated ip address is 192.*.*.13,so how did i change in all clients sys ip primary is 192.*..*.13.and another doubt at a time all actieve directory users password are need to change at a time and set Unique password.

I have a server 2012 R2 and have RDS installed. Its a single server that has all the roles, DC, DHCP, DNS, File, RDS,  i installed a 90day cert from comodo . If i go to a windows 7 machine and go to https://rds.domain.com/RDWeb and login when i run an app i get this error
"Your computer can't connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable" Try Reconnecting later or contact experts-exchange for assistance. "

If i do this from the server itself the apps open fine.

Hi all,

This is our setup:
- Sonic Firewall TZ300
- Barracuda Email security
- Server 2012 r2 with Exhange 2016
Latest updates are installed.

OWA works fine, outlook anywhere works fine.
Application Symprex for email signatures has an error trying to connect locally
MigrationWiz for migrating mailboxes doesn't work either.

Checking testconnectivity.microsoft.com results in error. Contacted above application providers: could be the problem with autodiscover.

Error is:
Attempting to test potential Autodiscover URL https://autodiscover.domain.nl:443/Autodiscover/Autodiscover.xml
       Testing of this potential Autodiscover URL failed.
       
      Additional Details
       
Elapsed Time: 1860 ms.
       
      Test Steps
       
      Attempting to resolve the host name autodiscover.domain.nl in DNS.
       The host name resolved successfully.
       
      Additional Details
       
IP addresses returned: 123.123.123.123 (correct of course)
Elapsed Time: 730 ms.
      Testing TCP port 443 on host autodiscover.domain.nl to ensure it's listening and open.
       The port was opened successfully.
       
      Additional Details
       
Elapsed Time: 510 ms.
      Testing the SSL certificate to make sure it's valid.
       The SSL certificate failed one or more certificate validation checks.
       
      Additional Details
       
Elapsed Time: 619 ms.
       
      Test Steps
       
      The Microsoft Connectivity Analyzer is attempting to obtain the SSL certificate from remote server autodiscover.domain.nl on port 443.
       The Microsoft Connectivity …

Hi Experts.

I'm trying to figure out why/where  DNS traffic coming from a DNS/DC server to a now decommissioned server. I've checked the Forwarders on the properties of the DNS server and there are none, though according to network team there is a high amount of DNS traffic.

Are there any tools I could use local on the DNS server to determine this?

I am looking for some clarification on the proper configuration of my DNS amd my email server.

Here is the setup:
I am using Comcast as my ISP and have an Exchange server running in my SBS2008. I have a static IP address assigned by Comcast and have registered a domain name pointing to it ( [b]abc.net[/b)]. I also have a company domain name that is abc.com. This domain points to an outside web and email server. I am using the Windows POP3 Connector to retrieve emails from the abc.com server and putting them into the Exchange mailboxes. (I know, nobody likes the POP3 Connector...) Then I am using the in house Exchange server to send emails directly from the domain <b>name@abc.com</a>

The problem:
Lately, I have been getting the error from Gmail accounts that I try to send to saying that the Reverse DNS for IPv6 is not properly configured, and that I must fix this before Gmail will accept emails from abc.com.

The question:
This is where it becomes a bit confusing for me. What is the proper way to set up the DNS configuration, and where. Currently, I have asked Comcast to set up the Reverse DNS for abc.net back to my IPv4 and IPv6 addresses, but Gmail is still blocking me. Should I also, or in place of, asked them to set the Reverse DNS for abc.com to my server, instead? Or is this something I should be doing on my SBS2008 DNS?

Dear All,

Outlook 2013 Clients are getting following message after starting their outlook,

The name of the security certificate is invalid or does not match the name of the site error?

I have check my internal URL and external URL, both are fine and properly configured.
i have check DNS records its correct.
i have checked serviceBindingInformation and found  correct

when opening XML file, getting following message

<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
<Response>
<Error Time="10:14:11.2991610" Id="25892145">
<ErrorCode>600</ErrorCode>
<Message>Invalid Request</Message>
<DebugData/>
</Error>
</Response>
</Autodiscover>

Please advice, is there is problem with redirection or any thing else is missing

Thanks

Hi All,

Can anyone here please assist me in troubleshooting as to why my Outlook Web Access is randomly signing me off while reading or typing email ?

I also cannot access the below OWA option with HTTP ERROR 500:
Change OWA Account settings: https://owa.domain.com/ecp/?rfr=owa&owaparam=modurl%3D0&p=account
Change AD Password: https://owa.domain.com/ecp/?rfr=owa&owaparam=modurl%3D0&p=PersonalSettings/Password.aspx
Enable OWA Add On: https://owa.domain.com/ecp/?rfr=owa&owaparam=modurl%3D0&p=installed

However, when I manually type in the Public IP address or the server name instead of owa.domain.com, I can access the server with no problem.

This is my current deployment of the Exchange Server 2013 Standard Edition in my domain:

AD Site: Default-First-Site-Name
PRODMAIL14.domain.com [old CAS & MBX server]
PRODMAIL20-VM.domain.com [new CAS & MBX server]

AD Site: Head_Office
PRODMAIL42-VM.domain.com [CAS & MBX server]
PRODMAIL30-VM.domain.com [MBX server]

I have just created multiple A Record for OWA.domain.com and Autodiscover.domain.com pointing to my existing 3x CAS-MBX Exchange 2013 server roles.

Public DNS (A) records Round Robin:
OWA.domain.com – Public IP address of PRODMAIL14, PRODMAIL20-VM and PRODMAIL42-VM
Autodiscover.domain.com – Public IP address of PRODMAIL14, PRODMAIL20-VM and PRODMAIL42-VM

Internal DNS (A) records Round Robin:
OWA.domain.com – Public IP address of PRODMAIL14, PRODMAIL20-VM and PRODMAIL42-VM
Autodiscover…

We have two dns servers on our domain, they worked fine until recently. Not sure what has happened, but some clients  either can't go to sites at all or it is very slow getting there. Often a symptom is "resolving host" message when they go to internet.  We've found that manually making them go through google dns server 8.8.4.4 solves the problem. Questions: (1) what kind of problems are we likely to run into by making everyone go through google dns? (2) what could be causing our dns servers to be so inconsistent?

Where within the Gmail admin console can the external DNS mail exchange (MX) records be changed for an organization using Gmail for its email?

Hi,

I have recently installed a HP Server 2012 server and all has been running okay till one day it would not access the internet. The internal network is working okay and all the other workstations are connecting to the internet fine. I can rdp to the Server with no issues, updates are all installed, all setting are still as they were.

What I have noticed is that there seem to be two network connections (see attached file) there is only one network card in this Server.

is it possible to get 100% fail over 100 % availablity using f5 to two IIS servers configured for load balancing in round robbin.

Each request to check if a server is active and route the call to the other server if one is down, without any downtime.

Also is it possible to queue a call if both servers are down and wait a certain period of time and make the call to the first available server?