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Share a VPN tunnel

February 10, 2016, 6:20 am
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Hi everbody,

I'm quite new to this and although it sounds easy in my head, it's quite hard to establish. Here's the problem. Both me and a friend of mine got a VPN server on windows server 2008. We established a VPN tunnel which has a persistent connection. This works fine on both ends and we can access each others files through the server.
I was wondering if there is any possibility to share the VPN tunnel to other pc's in the network so I can access the VPN tunnel from any device in my LAN.

Thanks in advance!

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Unable to connect to SQL Server 2005 (with SP3) running on Windows Server 2008 R2 through Universal Data Link (UDL)

February 11, 2016, 12:36 am
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I'm trying to connect to SQL Server 2005 (with SP3) running on Windows Server 2008 R2 through the UDL. The SQL instance name and the 'sa' password is correctly mentioned. Attached is the error. The SQL browser service on the server is running. 



When the SQL server 2005 is installed on the Windows Server 2003 computer, we are able to connect to the SQL through the UDL. Please assist in resolving the error.

MPS

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Microsoft Network Policy Server uses a random certificate

January 29, 2016, 12:06 am
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Microsoft Network Policy Server certificate is stored under mmc - Computer - Personal. 

We use Heimdal Security V2 software that has his own certificate and is also stored in Personal.

It seems that NPS Server uses a random certificate from Personal folder and this results in incompatibilities. We contacted the Heimdal support and we found out Heimdals certificate needs to appear in Personal and in Trusted People to work normally and connect to it's server.

Is there a way to force the NPS Server use a specific certificate? Also I am curious to find out if there are customers that have a NPS Server, an Exchange Server and maybe other apps that use the Personal folder for their certificate location, it the NPS Server working normally?

Best regards,

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Multihomed DHCP on Windows Server 2008 R2 uses wrong scope - Ideas?

February 11, 2016, 2:54 am
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Hi everyone,

I stumbled across some interesting behavior of the DHCP Service in Windows Server 2008 R2. I have a single, physical Server, which is connected to two different LAN segments. For each LAN segment, I have a corresponding scope configured. If a client is connected to one of the LAN segments, it receives an IP address as usual.

BUT:

  • If a client has a reservation configured in the first LAN segment but connects to the second LAN Segment, it is still assigned the reserved IP from the first LAN Segment.
  • If a client move from one LAN segment to the other, it still receives an IP address out of the previous scope - until the lease time of the assignment runs out.

There is no shared link between both LAN segments. Each LAN segment is a separate VLAN. No bridges. Not even routing between the two.

So roaming between the LAN segments seems to be a problem. Any ideas, how to fix this?

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in NPS 2008 R2 , in NPS network policy operating system condition , how we should point to windows 7 operating system ?

December 1, 2011, 10:16 am
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hi all

in NPS 2008 R2 , in each network policy , in conditions Tab , we can add operating system condition for that RAS client . but what is the format of definig Windows 7 oparating system ?  the interface is not user friendly at all.

thanks in advance

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AD Integrated DNS issue

February 11, 2016, 10:23 am
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Looking at DNS Manager on a Server 2012 DC I have 2 separate listings for my DC on a single domain forest. I see my server name, under which is all of the current zones and resource records. There is also a listing of the FQDN server (again same DC) with duplicate records of all current zones and clients. both have the mcds_.... files, SOA and all necessary listings. I have some clients that take forever to resolve a simple network connection. How can I take care of this issue? If more info is necessary I can take a snap shot of the DNS and post.

Tracy

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Unable to connect to the SQL Server 2005 (with SP3) running on Windows Server 2008 R2 through the SQL Server 2014 Management Studio

February 11, 2016, 12:40 am
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Hi,

We have installed a new SQL Server 2005 (with SP3) on Windows Server 2008 R2. We are unable to connect to the SQL 2005 Server through SQL Server 2014 Management Studio. Is this supported? All SQL server 2005 services except for AD Domain helper are running on the server. 

MPS

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DirectAccess error: Windows is unable to resolve DNS names for probes

February 11, 2016, 1:50 am
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Hello,

we have a Direct Access Server installed as edge server.

So we have 2 NICs one internal one external. About 2 days ago DirectAccess stopped working.

When I collect logs on a client it shows: "Windows is unable to resolve DNS names for probes"

Interestingly if I use nslookup I am able to resolve internal servernames:

Here also the netsh effectivepolicy:

Could someone lead me in the right direction to solving this issue?

Thanks in advance

Paul

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unidentified network will kill me

April 2, 2014, 11:11 pm
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hi every one

i had major problem with this thing

we have file server which is a member server with windows server 2012 in a domain with domain controller being installed windows server 2012.

the file server always give me unidentified network and i tried every solution i read about . disabling unused lan ports,run the command "netsh int ip reset" or some thing, but when ever the server reboot the same problem occur again . i need a solution with out playing with firewall.

not: every time i disable or enable ipv6 in the lan the problem solved but when reboot it the problem come again.

help me please

best regard

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RRAS VPN (SSTP) in Azure - cannot ping other VMs in subnet

February 12, 2016, 4:29 pm
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Hi there,

I'm trying to setup RRAS on Windows Server 2012 R2 server in Azure to support inbound VPN connections from internet machines using SSTP.

I've setup the RRAS service, and am able to successfully VPN into the host from a guest machine, and can establish connectivity to the RRAS server using ICMP etc. However, I cannot connect to any other VMs in the same subnet as the RRAS server... no matter what I do. My connection is just limited to the RRAS machine.

My environment is as follows

RRAS server - single interface.

  • IP address of 10.50.0.12
  • Configured as a VPN service (SSTP with public wildcard certificate)
  • RRAS configured with a static address pool of 172.16.10.10 - 172.16.10.254 

I have configured a static route on another server in tenant (10.50.0.11) that points all traffic to the static address pool via the RRAS server (route add 172.16.10.0 mask 255.255.255.0 10.50.0.12 -p)

I can successfully connect from my client machine, and establish connecting and ping the RRAS server on 10.50.0.12. 

However, I cannot ping anything else, including the secondary VM that I put the static route on (10.50.0.11). I've tried disabling the Windows firewall on all machines... no difference.

Can anyone point me in the right direction as to what might be wrong?

Regards, James

James Frost

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RRAS VPN don't work with asymmetric routes

February 12, 2016, 3:47 am
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Hello,

We have an issue with our vpn solotuion for remote clients. Some clients can't connect to Windows Server using rasdial (ikev2, IPSec).

Troubleshooting shows the problem appears when packets come from one ISP but sent to another one. We have BGP with 3 ISPs and load balancing outbound traffic over 3 bgp-neighbours. So we can manage outbound traffice, but can't do it with inbound, we recieve only default routes from bgp-neighbours.

Is this a normal behavior of rasdial connection? If "yes", could somebody explain why client can't connect and which processes influence for it. If "no", what wrong with our clients, configurations and etc. 

Our another vpn solutions (dmvpn, l2tp, for example) work well with this network topology.

Thanks in advance.


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Reverse DNS smaller than /24 (v4)

November 7, 2010, 11:25 am
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Hey everyone, i only have a /29 range assinged to me with cname pointing to my server for ptr, i tried adding the range to reverse zone in my server, but does not update. 

when i dig my addy i get this response

if i dig -x 185.169.164.171 @ -my server- it works fine.

171.164.169.185.in-addr.arpa. 7200 IN   CNAME   171.168/29.164.169.185.in-addr.a

how do i add only the /29 to the settings apposed to the entire /24

 

so that i can match the CNAMEs to the isp set onces 

 

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dhcp service does not start

February 13, 2016, 8:17 pm
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hi

i have a WDS server on windows server 2012.

recently i disabled my dhcp server and when would to enable it this erroer mesage accured : can not start dhcp service.

with the best regards.

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lab setup for windows dns, dhcp

February 14, 2016, 1:17 pm
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hello

I was hoping to setup a lab to study dns etc. at home.

 should I go for a managed switch or a router that has dd wrt or something similar? I was hoping to keep my personal equip separate from the lab

thank you

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Domain

February 13, 2016, 11:41 pm
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Hello friends,

                   My office network is in a local domain and we have a remote server contains another domain. The remote domain contains one ERP software.

                   Now i would like to know if one user in local domain logins with local credentials can access the ERP software in remote domain by any way

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DirectAccess 2012 R2 - Multisite with Manage Out

February 15, 2016, 8:20 am
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Hi guys,

I've read up quite a bit over the last few days on using DirectAccess after deploying it here ourselves.

One thing I'm unsure of, is how to achieve manage out with DirectAccess when using multisite. Microsoft documentation states that you need to use native IPv6 on the intranet for this to happen.

OK... but that's a little broad for my liking. Why does this work? Why is it needed? (I understand that ISATAP isn't usable).

Am I right in guessing that you need each DA server to have a IPv6 prefix for it's clients, and therefore when an IPv6 management server tries to connect to the client, it resolves the AAAA to an IPv6 and then routes the traffic to right DA server as it's next hop depending on the prefix? Is this right?

My IPv6 knowledge is very limited at best! Can someone help me out here on this?

Thanks - Steve

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VPN Clietns cant communicate with each other.

February 15, 2016, 1:56 pm
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Dear friends,

I am trying to prepare a VPN server. But it is not working as per my idea.

I have server 2008 R2 (192.168.1.50, with only 1 interface) with VPN Configured.

I have 2 clients (remote locations) which will connect to main server though internet VPN and take static IPs 192.168.2.3 and 192.168.2.4 respectively.

Until this it is working fine. I am able to ping the client 1 from client 2 and wise versa. But I want to access oracle server (port 1531) from client2 which is installed in client 1. But I am not able to connect.

Please help.

Thanks in advance

Junus Johnson

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2008 R2 KMS activation using windows 2012 R2 kms host key

February 16, 2016, 4:04 pm
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Hi,

I have some problem in windows 2008 R2 kms activation using windows 2012 R2 kms host key. I did the following and not sure what i'm missing.

1. Installed volume activation role in windows 2012 R2 server.

2. In the product key i have mentioned windows 2012 R2 KMS host key.

3. In the windows 2012 R2 client , i have mentioned windows 2012 r2 kms client key, the activation was successful immediately.

4. In the windows 2008 R2 clinet, i have mentioned windows 2008 R2 kms clinet key, the activation is failing with error ( Error: 0xC004F038)

I beleive windows 2012 R2 kms host key will activate windows 2008 R2 clients as well. Can anyone suggest what i am missing here for this windows 2008 R2 activation?

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I have a network time issue.

February 16, 2016, 8:52 am
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NTP or other time sources will not start on my AD server. Causing errors on replication. Any advice out there?
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DHCP server connects with different DNS servers even in Greece

February 16, 2016, 10:59 pm
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In our firewall we see that our new DHCP server without other applicaties sends outgoing traffic on port 53 to different DNS servers. Ofcourse our domain controllers are part of it itoo, so communicating with those servers is fine.

But i don't understand how a local DHCP server connects to this servers on port 53 while it's not in cloud or at a decentral location. Is this a setting?

The connections are too a DNS routering on the internet. And these domain all have connection with each other when i look at 'who is'.

15.211.192.12HOU3NS.HOUSTON.HP.COM
15.211.192.12HOU3NS.HOUSTON.HP.COM
15.219.145.12VANNS1.AMERICAS.HP.NET
15.219.145.12VANNS1.AMERICAS.HP.NET
37.48.122.225DNS3.INOVAMEDIA.NL
37.97.255.53NS2.TRANSIP.NET
37.97.255.53NS2.TRANSIP.NET
46.101.153.24NS2.NETWORKING4ALL.NET
46.101.153.24NS2.NETWORKING4ALL.NET
52.2.199.197NS1.PARKINGCREW.NET
52.22.2.242NS2.PARKINGCREW.NET
52.64.97.236NS1.PARKINGCREW.NET
52.64.133.131NS2.PARKINGCREW.NET
52.68.87.177NS1.PARKINGCREW.NET
52.69.248.231NS2.PARKINGCREW.NET
52.76.100.92EC2-52-76-100-92.AP-SOUTHEAST-1.COMPUTE.AMAZONAWS.COM
52.76.100.92EC2-52-76-100-92.AP-SOUTHEAST-1.COMPUTE.AMAZONAWS.COM
52.88.191.171NS1.PARKINGCREW.NET
52.89.204.2NS2.PARKINGCREW.NET
54.75.227.14NS1.PARKINGCREW.NET
54.75.226.194NS2.PARKINGCREW.NET
57.67.40.20NS1.EXT.PHILIPS.COM
57.67.40.20NS1.EXT.PHILIPS.COM
57.73.36.68NS3.EXT.PHILIPS.COM
57.73.36.68NS3.EXT.PHILIPS.COM
57.77.21.76NS2.EXT.PHILIPS.COM
57.77.21.76NS2.EXT.PHILIPS.COM
62.212.64.121NS1.LEASEWEB.NL
62.212.78.199NS4.LEASEWEB.NET

Can anybody explain this behaviour and how to solve this.

Kind regards,

André

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