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  • How can I set up a local nameserver and modify DNS zones on it?

    - by Joe Hopfgartner
    This is a follow up to this question. I am having an issue with a Router that doesn't support hairpinning properly. See the link above for details. Now I want to set up a local DNS server that Hosts in our LAN can use to resolve public Hostnames (usual webbrowsing... ). Additionally I want to modify certain zones. In our LAN we have some servers serving resources that are not available in our public dns zone. We always have to configure our local LMHost files accordingly. For example we have a staging installation with a new feature running on a local Webserver, and we cannot access it with the IP directly because the website runs in a named virtual host container, we have to configure LMHost file to point some domain to the local IP address. And now we have also the Hair pinning issue. So my question is: What software can I use? Will bind do the job? I just need to insert some A entries into the zone. As easy as possible. We have local Linux/Ubuntu servers.

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  • Configuring IE to resolve DNS at the proxy rather than locally.

    - by dankilman
    With the intention of tunneling web traffic through an SSH connection, the following has been done: I've manually configured a PAC file in IE7 in the LAN Settings dialog. I've verified that traffic is routed through my SSH tunnel that is setup for SOCKS5 dynamic port forwarding. I see that IE7 is always trying to resolve the name locally first. What I'm looking for is the ability to have the DNS name resolved at the proxy, rather than locally by the browser. There's a setting in Firefox that specifies DNS remote resolution, and Safari does it automatically. I've verified correct operation for these 2 other browsers. It would be nice if I could get IE to work also. This is for reference so you could understand where does the question originate from. Notice: The question was actually found by the help of google but with no answers available. Considering how it is exactly my question I figured I should just copy/paste over here because I don't think I could describe any better (there is a small introduction though).

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  • GPO errors filling up event viewer

    - by burntehsky
    there have been a few issues with the server i have been working on i check the event viewer and it is filled with the errors below i was not sure how to go about fixing this i looked in the path where the file is and it is there Windows cannot access the file gpt.ini for GPO CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=ISPHOME,DC=NET. The file must be present at the location <\\isphome.net\\sysvol\ISPHOME.NET\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini>. (The network location cannot be reached. For information about network troubleshooting, see Windows Help. ). Group Policy processing aborted. C:\Documents and Settings\Dimitri>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : ispserver Primary Dns Suffix . . . . . . . : ISPHOME.NET Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : ISPHOME.NET Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection #2 Physical Address. . . . . . . . . : 00-07-E9-AA-3E-C3 DHCP Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.50 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 127.0.0.1 *dcdiag /c /v is below* Summary of test results for DNS servers used by the above domain contro llers: DNS server: 192.168.1.1 (<name unavailable>) All tests passed on this DNS server This is a valid DNS server DNS server: 192.168.1.50 (<name unavailable>) All tests passed on this DNS server This is a valid DNS server Name resolution is funtional. _ldap._tcp SRV record for the fores t root domain is registered Summary of DNS test results: Auth Basc Forw Del Dyn RReg Ext ________________________________________________________________ Domain: ISPHOME.NET ispserver PASS FAIL PASS PASS PASS PASS n/a ......................... ISPHOME.NET failed test DNS

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  • Can a Barracuda Spam Filter 300 reject mail based on DNS?

    - by user84104
    Can a Barracuda SF 300 reject mail based on DNS? Specifically can it respond with a 4XX code for mail claiming to be from a domain without a valid MX or A record (similar to postfix's smtpd_sender_restrictions = reject_unknown_sender_domain). If so, how do I set it? (I realize it's probably something simple I've overlooked.) The barracuda can resolve using its configured name servers. The name servers can correctly resolve external domains.

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  • Why is SMB from a Windows 7 64-bit to OS X Server so slow when using DNS vs IP?

    - by chuboy
    When I connect my 64-bit Windows 7 to a OS X server using \servername, my transfer rates are around 400KB/s. However, when I do the same thing using \192.168.0.10 (which is the IP of the server), transfer rates jump to 30MB/s. All of this happens via a gigabit ethernet cable with my wireless disabled I heard Samba itself "doesn't use DNS", but if that's the case, how am I able to connect to the server in the first place?

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  • Is there a way to backup AD and DNS in Windows 2008 without backing up the whole Volume?

    - by EtherDragon
    I would like to know if there is a (cost free) way to backup Windows Server 2008 Active Directory and DNS settings without using Windows Server Backup. The problem stems from not having a seperate volume available to store the resulting backup from Windows Server Backup. I examined the command line options with wbadmin and it also expects the destination to be a dedicated volume for the backup. ~ED

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  • Static route toward a DNS Address, it is possible ?

    - by aleroot
    I need to add a static route on a windows server toward a web server with a service, i need to add a static route with this command on windows command prompt : ROUTE ADD -p IPADREESS GATEWAYIP Is there a way to do a static route toward a DNS address instead of a IP Address ? How ? For example : ROUTE ADD -p DNSServer GATEWAYIP

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  • Is there a way to backup AP and DNS in Windows 2008 without backing up the whole Volume?

    - by EtherDragon
    I would like to know if there is a (cost free) way to backup Windows Server 2008 Active Directory and DNS settings without using Windows Server Backup. The problem stems from not having a seperate volume available to store the resulting backup from Windows Server Backup. I examined the command line options with wbadmin and it also expects the destination to be a dedicated volume for the backup. ~ED

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  • ssh connection slow when using @hostname.com but now when using @ipaddress

    - by Alex Recarey
    When connecting to a Debian server using ssh, if I use [email protected] (the IP address of hte server) the connection is instant. If however I use [email protected] (a DNS redirected to the IP address of the server) the ssh connection hangs for a 20 seconds before connecting successfully. The ssh logs show the following: [alex@alex home]$ ssh -v -v [email protected] OpenSSH_5.5p1, OpenSSL 1.0.0c-fips 2 Dec 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 and here it hangs during 20 seconds before continuing. I think it might have something to do with reverse DNS or similar (the server does not really "know" it's name is hostname.com, it just has that DNS rediriected to its IP address). I have added the following options to /etc/ssh/sshd_config: UseDNS no GSSAPIAuthentication no to no effect. The server's DNS records in /etc/resolv.conf are configured correctly: ping hostname.com PING sub.domain.com (X.X.X.X) 56(84) bytes of data. 64 bytes from replicant (X.X.X.X): icmp_seq=1 ttl=64 time=0.029 ms 64 bytes from replicant (X.X.X.X): icmp_seq=2 ttl=64 time=0.050 ms?s Thanks for the help. Solution: It seems the DSL router my ISP saddled me with was causing the trouble. Changing my DNS server from 192.168.1.1 (router's IP) to google's (8.8.8.8, always good to know when you are in a hurry) instantly solved the connection delay problem. I am guessing that the 50€ router provided does not cache DNS entries, although I don't understand why pinging the DNS address had no delay, and 20 seconds is too long of a wait, even for uncached DNS. Tnanks again for the help!

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  • Is there a standard method for assigning nameservers to servers in a Windows domain?

    - by HopelessN00b
    As the title asks, I'm wondering if there's any standard or "best practice" for how to actually assign nameservers (DNS) and manage the nameserver configuration for client servers on a Windows domain. I'm talking about the setting circled in the below image, in case the language of the question is not clear enough: This is for a large, multi-site environment, where ideally/hopefully all servers point at their site's Domain Controller as the primary DNS server, and a DNS server at a different site as the secondary DNS server. For simplicity's sake, we can say that the secondary server would be the Domain Controller at the home site for everyone, and there are no tertiary DNS servers (even though that's not actually the case). Try as I might, I can't seem to find a GPO setting for this (at least on FL 2003 R2, the Computer Configuration - Administrative Templates - Network - DNS Client - DNS Servers GPO is Supported on: Windows XP Professional only), and I find it rather hard to believe that the "best"/"standard" solution would therefore be either scripting up something to apply the DNS settings per site, or using a DHCP server to push those configurations out to the other servers via the DHCP Scope Options. So, is there a standard way of managing this configuration? (That's hopefully not "a script" or "DHCP Scope Option.)

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  • Ubuntu IP Configuration - multiple subnets & interfaces

    - by HaydnWVN
    Have a 'new' mailserver running postfix on Ubuntu. We are having some problems configuring the subnets & interfaces. Basically 2 subnets (.253. & .254.) need to be connected through the 3rd subnet (.252.) where the Router is residing. # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.62.254.199 netmask 255.255.0.0 network 10.62.254.0 broadcast 10.62.255.255 #gateway 10.62.252.138 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 10.62.252.138 dns-search ***.com auto eth1 iface eth1 inet static address 10.62.253.199 netmask 255.255.0.0 network 10.62.253.0 broadcast 10.62.255.255 #gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-nameservers 10.62.252.138 dns-search ***.com auto eth2 iface eth2 inet static address 10.62.252.199 netmask 255.255.0.0 network 10.62.252.0 broadcast 10.62.255.255 gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-search ***.com I have an external support company who are looking into this (they built and configured this server), but it's taking far too long... So I'm looking to highlight the mistake!

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  • Ubuntu Server 12.04 as a router. Problem with DNS?? Or Routing table?

    - by Lorenzo
    I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. I had the requirement to execute some tests that also access external services available on the internet. To keep things clean and similar to the production environment I have installed another VM, with Ubuntu Server 12.04 64 bit and configured (I hope) to work as a router like described on this post. This VM has two network interfaces: first is Bridged with the host and is used as a WAN connection and the other one attached in the Internal Network with its own static IP address on the internal network subnet. But actually the Windows servers does not connect to the internet while the unix one connects. I did a route command. this is the result: Kernel IP Routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.69.121.1 0.0.0.0 UG 100 0 0 eth0 10.69.121.0 * 255.255.255.0 U 0 0 0 eth0 192.168.83.0 * 255.255.255.0 U 0 0 0 eth1 Can somebody help me with this configuration? :) Thanks! Addendum: I forgot to mention that one of the windows server hosts a DNS service for which I should maybe configure a forwarding server but I do not exactly know which server to forward on... :(

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  • How to map DNS with my new IP address? [closed]

    - by Carsen
    I have installed apache2 in my ubuntu server. In apache2.conf, i have specified this <VirtualHost *:80> ServerName something.in DocumentRoot somewhere/public <Directory somewhere/public> AllowOverride all Options -MultiViews </Directory> </VirtualHost> Also, i have my Domain - something.in registered with Go Daddy. There i have changed A(HOST) to point to XXX.XXX.XX.XXX which is my public address. But when i type something.in in browser, i am not getting my apps home page. I got my public IP address as "XXX.XXX.XX.XXX is Natted to XX.XX.X.XX". which IP address should i use in my DNS settings? How to make apache2 in my ubuntu server listen to request for something.in?

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  • How can i control how much Authority RRs a DNS answer returns ?

    - by Benoît
    Hello, i quite don't understand Authority RRs. Using dig to resolve some random A records, my caching DNS server sometimes also return Authority RRs and sometimes not. The number and the type of the returned Authority RRs also vary a lot. What does control whether Authority RRs are returned or not on a standard client query ? Is it a client or server setting ? What does control how many Authoriy RRs are returned ? What does control of the type of the Authority RRs records returned ? Sometimes it's multiple NS, sometimes it's a SOA. It's also often comes with Additional RRs of type A about the Authority RRs NS returned. I'm really looking for a RFC or kind of describing this. Thanks.

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  • Win 2003 STD network adapter always showing DHCP when in static IP configuration, + it loses the DNS

    - by Darragh
    Hi, I have a server that after the first configuration it was DHCP, now I have added it to our domain and in a static IP, however after a few moments it returns to DHCP but with only some of the IPv4 setting staying the same, It loses DNS for example. I'm not sure what is causing the problem but all I know is this started to happen after I added it to the domain, Would it be a domain policy? or the NIC drivers Spec; Dell M605 Blade server Windows 2003 STD SP1 Intel Xeon Quad core NIC: Dual embedded Broadcom NetXtreme IITM 5708 Gigabit Ethernet NIC w/ TOE

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  • How do I create DNS entries for EC2 instances created by Auto Scaling?

    - by Evan
    I'm looking into using auto scaling groups for a tier of webservers that would be fronted by an ELB. One of the things I'm having a hard time with is how to give each new instance the proper DNS name. For example, I'd like webservers to have names like frontend-web-XXX.prod.example.com so their names would appear correct in logs and just ease of organization. I have two other tiers I'd ultimately like to make autoscaled and I'd like them to have names like api-web-XXX.prod.example.com as well. I have some experience with cloudformation templates and have spun up individual instances with associated Route53 records but I don't see any indication of how this can be done within an autoscaled group.

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  • How do I get the machine name from an IP via Multicast DNS?

    - by Adam
    I have a list of IP addresses on a network, and most of them support multicast DNS. I'd like to be able to resolve the server name instead of just having the IP address. ping computer.local 64 bytes from 192.168.0.52: icmp_seq=1 ttl=64 time=5.510 ms 64 bytes from 192.168.0.52: icmp_seq=2 ttl=64 time=5.396 ms 64 bytes from 192.168.0.52: icmp_seq=3 ttl=64 time=5.273 ms Works, but I'd like to be able to determine that name from the IP. Also the devices don't necessarily broadcast any services, but definitely do support mDNS broadcast. So looking through services won't work.

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  • How do I get the machine name from an IP via Multicast DNS?

    - by Adam
    I have a list of IP addresses on a network, and most of them support multicast DNS. I'd like to be able to resolve the server name instead of just having the IP address. ping computer.local 64 bytes from 192.168.0.52: icmp_seq=1 ttl=64 time=5.510 ms 64 bytes from 192.168.0.52: icmp_seq=2 ttl=64 time=5.396 ms 64 bytes from 192.168.0.52: icmp_seq=3 ttl=64 time=5.273 ms Works, but I'd like to be able to determine that name from the IP. Also the devices don't necessarily broadcast any services, but definitely do support mDNS broadcast. So looking through services won't work.

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  • Why can't I access the WebUI of my DNS-323 NAS after a firmware upgrade?

    - by anonymous2
    Hi Everyone, I just bought a D-Link DNS-323 NAS Enclosure, and have run into a problem. I read that the firmware that had shipped with (1.07) did not support 2TB drives, so I downloaded firmware 1.08. Turned on the device for thwe first time and went straight to the WebUI (everything looked/worked fine) Proceeded with the firmware update, completed successfully. Rebooted and I cannot access the WebUI. I can see the NAS connected via my router interface I can also ping the ip adress assigned, but I cannot access the WebUI or find it via D-Link easy search software. I have tried the factory reset button, but that does not seem to be doing anything, the square blue light just keeps flashing from the moment the unit is powered on, whether I press the reset button or not, and the symptoms remain the same... PS. I did/do not have any drives installed yet. Please help?

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  • Windows Server 2008 - Setting Up DNS and Web Server (IIS) to host personal website?

    - by Car Trader
    Okay, I have a server, (Windows Server 2008 R2 to be more precise) and I have installed PHP, MySQL, phpMyAdmin, for web hosting purposes. I have set up a static ip address internally. I have installed the role DNS and Web Server (IIS) role. I now set up my forward looking zone as my chosen domain. I set up the nameservers as ns1.domain.co.uk with my IP address which I found from whatismyip.org. However, when I type my IP address, it times out with an error (Timeout Error). Am I doing something wrong? Am I missing something? Also I have seen that most websites have multiple nameservers, which are apparently mirror IP addresses which all redirect to one IP address. Also, I can locally connect using the IP address 192.168.0.8, however, I want to put my website online/live on the internet. Can anyone help me with this? -- Regards

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  • Trouble joining Windows Server 2008 to Domain

    - by Jim R
    When I try to join my new server to my existing domain I get the following error: "An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resove DNS names in the target domain." I have tried all of the following already: Successfully pinged the domain controller. Ping the new server from the domain controller by IP address and by DNS name. Ping the DC server from the new server by IP address and by DNS name. Changed the network to DHCP (it was originally static). No joy as static or DHCP. Turned off all firewall settings. Added the domain name to 'hosts' file. Added the server name of the primary domain controller to the 'hosts' file in the new server. Any ideas? Thanks in advance for any help! Jim Update: With help from J. Brian Kelly (Thanks) I have managed to narrow down the problem to a DNS issue. Specifically, UDP/53 packets are being sent (they are seen in Network Monitor), but are not getting to the DNS server. But, I do not yet know why. Update: The quested output from IPCONFIG for the HyperV host and the virtual machine. IPCONFIG from HyperV Server Windows IP Configuration Host Name . . . . . . . . . . . . : HYPER Primary Dns Suffix . . . . . . . : sfi-wfc.com Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : sfi-wfc.com Ethernet adapter Local Area Connection 4: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Primary Network Physical Address. . . . . . . . . : 00-30-48-CA-CC-7A DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::cd16:3ac2:3d4f:e275%679(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.100.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.100.10 DHCPv6 IAID . . . . . . . . . . . : -1476382648 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-10-20-E9-00-30-48-CA-CC-7A DNS Servers . . . . . . . . . . . : 192.168.100.5 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Local Area Connection 3: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : sfi Description . . . . . . . . . . . : Intel(R) 82576 Gigabit Dual Port Network Connection #2 Physical Address. . . . . . . . . : 00-30-48-CA-CC-7B DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPCONFIG from Virtual Machine Windows IP Configuration Host Name . . . . . . . . . . . . : DB Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : sfi Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : sfi Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter Physical Address. . . . . . . . . : 00-15-5D-66-03-02 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.100.128(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Saturday, August 29, 2009 10:44:45 AM Lease Expires . . . . . . . . . . : Tuesday, September 01, 2009 3:08:33 PM Default Gateway . . . . . . . . . : 192.168.100.10 DHCP Server . . . . . . . . . . . : 192.168.100.5 DNS Servers . . . . . . . . . . . : 192.168.102.5 Primary WINS Server . . . . . . . : 192.168.100.5 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter Local Area Connection* 8: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : sfi Description . . . . . . . . . . . : isatap.sfi Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 9: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 02-00-54-55-4E-01 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes

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  • SSL Certifcate Request s2003 DC CA DNS Name not Avaiable.

    - by Beuy
    I am trying to submit a request for an SSL certificate on a Domain Controller in order to enable LDAP SSL, and having no end of problems. I am following the information provided at http://support.microsoft.com/default.aspx?scid=kb;en-us;321051 & http://adldap.sourceforge.net/wiki/doku.php?id=ldap_over_ssl Steps taken so far: Create Servername.inf with the following information ;----------------- request.inf ----------------- [Version] Signature="$Windows NT$ [NewRequest] Subject = "CN=servername.domain.loc" ; replace with the FQDN of the DC KeySpec = 1 KeyLength = 1024 ; Can be 1024, 2048, 4096, 8192, or 16384. ; Larger key sizes are more secure, but have ; a greater impact on performance. Exportable = TRUE MachineKeySet = TRUE SMIME = False PrivateKeyArchive = FALSE UserProtected = FALSE UseExistingKeySet = FALSE ProviderName = "Microsoft RSA SChannel Cryptographic Provider" ProviderType = 12 RequestType = PKCS10 KeyUsage = 0xa0 [EnhancedKeyUsageExtension] OID=1.3.6.1.5.5.7.3.1 ; this is for Server Authentication ;----------------------------------------------- Create Certificate request by running: certreq -new Servername.inf Servername.req Attempt to submit Certificate request to CA by running: certreq -submit -attrib "CertificateTemplate: DomainController" request.req At which point I get the following error: The DNS name is unavailable and cannot be added to the Subject Alternate Name. 0x8009480f (-2146875377) Trouble shooting steps I have taken so far 1. Modify the Domain Controller Template to supply Subject Name in Request restart Certificate Service, include SAN in Request, same error. 2. Re-installed Certificate Services / IIS / Restarted machine countless times Any help resolving the issue would be greatly appreciated.

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