DNS Setup/View external website internally

Greetings all - trying to set up a Mac server from scratch for the first time. Been managing one for a while but didn't actually set it up myself.
I have the beginnings of DNS setup all squared away, but am still looking to figure out how to properly set up my website. Here's my setup. We used to have a joint Windows 2003/10.5 server environment. Windows handled Exchange and DNS, the Leopard box handled everything else (DHCP, web, file sharing, etc). We're transitioning everything to the Mac box in preparation for setting up Kerio MailServer and just to ditch the windows box.
I own companyname.net - that domain is hosted externally by Network Solutions. It's forwarded to my static IP.
Our old internal DNS was hosted by a Windows 2003 box - it had zones for companyname.ltd (the private internal domain) and companyname.net. companyname.ltd was the nameserver. There were two A records handling the website for internal clients - one with a blank name, and one with www. Both pointed to the IP of the Mac server (the current box that I'm transitioning everything to). Everything was hunky dory - internal pings to the web address went to the internal ip, externally it went to the external IP, and everything worked just great.
So in setting up the new DNS on the Leopard box, here's what I have so far.
Primary zone: companyname.net
A Record: macpro : 192.168.1.3 (this is the name of the server)
A Record: mail : 192.168.1.2 (our mail server)
Alias : ichat : macpro.winstongroup.net
The checkhostname thing works fine, Kerberos is up and running, as is Open Directory.
Now, I do not know how to set up our website so that internal clients can view the external website. I tried creating an A record to the server for www, but then that overrides the macpro A record that is the host of the whole thing. I also tried creating A records to the external IP, but then when I pinged it just pinged once, then it seemed like the firewall kicked in and stopped it. I tried creating aliases to companyname.net but every time I did that, Server Admin kept adding on an additional companyname.net to the end of the name (so it would read like companyname.netcompanyname.net). That didn't make much sense to me.
I'm sure there's other people who can view internally hosted sites from the lan - so any help would be very much appreciated!

One minor other question. I prefer the url of our site to be companyname.net instead of www.companyname.net. So now, while www is set up as a server alias, it wouldn't direct to companyname.net, even though that URL was set up in the web services panel in Server Admin. I then created a new alias that was "companyname.net", without the trailing period so it was not a FQDM, directed it at the same web server, and everything seemed to work. Does that seem right - it's working, so it seems to be somewhat right at least!

Similar Messages

Server DNS same as external website?

Apologies if this is a basic question, but I'm finding that tutorials on the subject unhelpful or too specific. You may guess that my knowledge of DNS is shaky.
When a contractor set up our OSX server, he made the domain of the server the same as the address we use for email and the like. So we have company.com.au registered as a domain on the internet with mail handled by an external provider. Our file server here in the office is known as xserve3.company.com.au.
It all seems to work ok, but the server isn't connected to the internet in any meaningful way, other than being a machine on our LAN with an internal IP address (192.168.1.9).
Is this setup going to cause me grief if I wanted to start enabling services such as mail or web serving? Will it simply just be known on the internet as xserve3.company.com.au whereas the externally hosted stuff will be company.com.au?

From your description it's unlikely that any remote (i.e. internet) user will be able to get to this machine at all, regardless of what services are running on it.
You could fire up anything you like and no one outside the office will notice any difference.
Since the server has the IP address of 192.168.1.9 it's clear that it's running in a private network behind some firewall or other NAT device.
In order to make this machine accessible to the outside world you will need to make some changes to that firewall to permit incoming traffic to get routed to the xserve.
In addition, once you do that the server can have any name you like on the outside world. It's entirely possible to setup DNS such that 'www.company.com.au' on the public side gets routed to xserve3.company.com.au on the internal network - no one on the outside world needs to know the real hostname of the machine that 'www.company.com.au' points to.
So, in general, no one in the outside world should ever see any 192.168.x.x address in the public DNS and you configure your router/firewall to forward whatever traffic you do want to go to whichever internal machine you like.
Without knowing more about your setup it's impossible to tell you much more, like where you need to make the DNS changes, etc.

Follow up - DNS (internal domain has same name as external website)

Hi,
I am following up with on previous blog entry about resolving an domain internal name to an external website found here:
https://social.technet.microsoft.com/Forums/windowsserver/en-US/4d97325b-ff3a-4f46-ba6e-dc3f4ff978e1/dns-internal-domain-has-same-name-as-external-website
On October 30, 2014
HayashiTech provided a response suggesting the use of netsh interface portproxy on the DC's to resolve this issue. There has been no feedback to this suggestion and I am very curious what opinions are out there for this suggestion as it appears to be the
best option provided yet.
Thank you in advance as well for all the great guidance I have found provided by Ace and his followers.

Interesting question. I've not seen that solution before, but having done a test on my lab setup it certainly seems to work as expected. Eg, using :
netsh interface portproxy add v4tov4 listenport=80 listenaddress=dc1.abc.com connectport=80 connectaddress=www.abc.com
on my DC where I've setup a working external domain name with the www record pointing to the website, and the non-www record pointing to the DC, requests to the non-www address are successfully being redirected to the www address (after confirming it didn't
happen prior to adding the portproxy).
So on the face of it that does look like a workable solution. I haven't used it myself in anger obviously, but the two downsides I can think of immediately to this solution are :
1) This operates as a proxy, so unlike the IIS method that Ace mentioned where it would tell the client to go to the www address instead (so the client connects direct), this method keeps your DC acting as a middle man, eg all communications to that address
go through your DC rather than direct from the client to the website. Depending on what they're doing on the website this may or may not be an issue for you.
2) Since the client is continuing to connect to the DC throughout, if you ever did need the have something on the DC responding to port 80 then you could have issues. That said, according to
https://technet.microsoft.com/en-us/library/cc731068(v=ws.10).aspx the portproxy listenaddress can be a FQDN rather than IP, so that could mitigate any issues there.

Setup WSUS - Now My External Website Cannot be Accessed via Domain Machines

Hi all,
I recently set up a WSUS server for my company so I can manage updates to domain computers. I got it working and each domain computer now looks to the server (192.168.0.101) for updates. In addition, I have a DC on this machine as well which has DHCP and
DNS setup on it too.
After I installed WSUS, Windows set up a IIS server so it could send out updates to computers. Unfortunatly, local domain (prorepmktg.com) computers stopped being able to access our external website (found at http://www.prorepmktg.com) this is hosted by
a 3rd party and is not a part of our network. I assume this is a DNS issue, but since it is also probably connected with WSUS, I need some help being able to allow access to our external website without disrupting any WSUS functions.
I apologize if this issue is simple to fix, but I am stretching my knowledge of DNS and WSUS here. I am running Windows Server 2012 R2.

I have a DC on this machine as well which has DHCP and DNS setup on it too.
I am running Windows Server 2012 R2.
This is your very first challenge. Have you researched the implications and requirements for installing WSUS on a Windows Server 2012/2012R2 Domain Controller?
Unfortunatly, local domain (prorepmktg.com) computers stopped being able to access our external website (found at http://www.prorepmktg.com)
I'm fairly certain that the mere act of installing WSUS and/or IIS would not have impacted your ability to access external domains.
Does this issue ONLY affect THIS external domain or ALL external domains?
If only THIS external domain, then it also begs the question of what you configured in DNS to allow your internal clients to get to that external domain.
Also relevant is this question: What is the Active Directory Domain Name of your internal domain? I'm much more inclined to think this issue began when you installed/configured DNS, not when you installed WSUS.
Lawrence Garvin, M.S., MCSA, MCITP:EA, MCDBA
SolarWinds Head Geek
Microsoft MVP - Software Packaging, Deployment & Servicing (2005-2014)
My MVP Profile: http://mvp.microsoft.com/en-us/mvp/Lawrence%20R%20Garvin-32101
http://www.solarwinds.com/gotmicrosoft
The views expressed on this post are mine and do not necessarily reflect the views of SolarWinds.

What is my DNS for my new website setup?

What is my DNS for my new website setup?
I am registering my new Domain name with an outside website service (not iWeb). Namecheap.com
What Mac OS X 10.8.2 DNS do I use for my server setup with thru their business? They have asked me this question. Or do I use their default servers as they suggest?
Please help. Thank you in advance for your advice.

It's not entirely clear what you're asking. Are you asking what data you have to provide to your domain registrar? Or are you asking for some configuration data for your machine?
Are you planning/hoping to use your Mac OS X Server as the authoritative DNS server for your domain? (this is usually a bad idea unless you really know what you're doing).
If you're setting up the remote domain on your registrar's servers then there's nothing you need to do for your machine. For simplicity's sake you don't need to do any DNS for your domain on your own server - let the service provider do that. If you want to setup your domain internally as well, then I'd recommend disconnecting your public records (hosted by your service provider) from your private ones (running on your own machine) since you will likely want to hide your internal network addresses from the public.

How to configure DNS server to redirect all web traffic to one external website?

I'd like to use the DNS service on my OS X Server as a way to force all all web traffic to one specific, external website. Not quite sure how to go about configuring it, though - any recommendations?
(BTW, this is, obviously, not our primary DNS server; I intend to silently update the preferred DNS server for users who fail to complete their timesheets in order to force the issue)

Web clients don't generate uniquely-identifiable DNS queries; there's no SRV request or related traffic that you could select on and spoof. So if you do implement this, everything querying the spoofing DNS server will get the spoofed host, or you'll have to spot specific queries that are likely web queries; Facebook, Google, Bing, etc.
If you still want to implement this, then I'd probably replace the DNS server with a runt DNS server (maybe hack dnsmasq or maraDNS, or create yourself a trivial DNS server) and have that always return the specified IP address. This avoids having to hack BIND to be universally authoritative, which is probably on par with hacking a simpler DNS server to always return a fixed IP address, and the latter is probably easier to undo.
A firewall can spot TCP port 80 and port 443 traffic, unlike a DNS server. Firewalling outbound port 80 traffic is more typical of these requests, and either trap that traffic to a specific web page based on the capabilities of the firewall, or the web proxy approach that Camelot suggests. There are folks that tie access into the web proxies into external authentication and related; that'd be able to do what you want. Web proxies are usually combined with firewall blocks, as most sites want only the web proxy to have external access, too. But this is also rather more pieces than a DNS redirect, too.

2008 R2 DNS does not resolve external websites until I clear DNS cache

Do I need to apply this hotfix
http://support.microsoft.com/kb/2508835/en-us
MCSE Certified

Thank you for posting the ipconfig /all, but we can't use it since the relevant data that we need to evaluate has been blocked out. I can understand if you have a strong security policy.
The Conditional Forwarders shouldn't be causing you to not to resolve specific domain names.
How long has this been going on?
What exactly occurs? Does DNS stops totally responding when you test it with nslookup, or are you just testing it with Internet Explorer?
If you have nslookup tests and responses, it may be helpful to see them, but if your security policy prevents you from posting them, I understand.
I'm curious about this part that you posted:
> "And as suggested by microsoft
> earlier,we have blocked few DNS
> Domains by creating conditional
> forwarders , pointing to
> our another domain."
Did you open a ticket with Microsoft support that provided this suggestion? If yes, you can email your support engineer that assisted you.
Or did you post this in this forum or elsewhere that you received this suggestion? If a forum post, do you have a link?
Without specifics, it may be difficult to assist. However, what I can provide are the following hotfixes. The second one you had already installed. I suggest and recommend to install the others.
1. DNS Server service does not use root hints to resolve external names in Windows Server 2008 R2
Post Windows 2008 R2 SP1 HOTFIX available.
APPLIES TO •Windows 2008 R2 Datacenter •Windows 2008 R2 Ent •Windows 2008 R2 Std.
Requires a restart.
http://support.microsoft.com/kb/2616776
2. DNS Server service does not resolve some external DNS names after it works for a while in Windows Server 2008 R2
Hotfix release - (released 4/15/2011)
http://support.microsoft.com/kb/2508835
3. Windows 2008 -
DNS queries for external domains are not resolved when you use Conditional Forwarding in Windows Server 2008
Post Windows 2008 SP2 Hotfix available
Requires a restart.
http://support.microsoft.com/kb/2625735/
4. DNS server stops responding to DNS queries from client computers in in Windows Server 2003, in Windows Server 2008 or in Windows Server 2008 R2 - Post Service Pack Hotfix available.
Does not require a restart.
http://support.microsoft.com/kb/2655960
If the above do not help or provide improvements, I highly suggest to contact Microsoft Support for specific assistance. Here's the link if you decide that you need to go with this option:
http://support.microsoft.com/contactus/
Ace Fekay
MVP, MCT, MCSE 2012, MCITP EA & MCTS Windows 2008/R2, Exchange 2013, 2010 EA & 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php
This posting is provided AS-IS with no warranties or guarantees and confers no rights.

Snow Leopard Server DNS setup

Where is there a step by step setup for making my Snow Leopard Server with DNS? Essentially, I am looking to setup a mail server but seem to be missing what information I need to gather from the folks that host my domain and how to point traffic to my network.

When I started setting up my first Mac OS X Servers a few years ago I had to completely retrain my brain because the MacOS does not follow the traditional nomenclature of Windows Active Directory and DNS setup. That being said like AD for Windows MacOS relies very very heavily on a healthy and properly running DNS system, both internally and externally. So one great resource I found was about 10+ hours of training on Leopard Server over to Lynda.com. I think you can sign up for a month long membership but it's well worth the investment if your looking for some basics thru advanced setup of Leopard Server. Now SLS is much much easier at the setup and deployment and some of the fundamentals of the setup interface have changed greatly (as an improvement) but the videos are still very applicable.
Basically it comes down to the following steps in order to get your website/e-mail/wiki services working.
1. Purchase your .whatever with a registrar, godaddy, doster, network solutions ect...
2. Make sure you have a fully routable PUBLIC IP address from your ISP that you can assign to the WAN (internet side of your router)
3. Contact your ISP and ask then to create an rDNS entry for your .something to the IP address they assigned you. Usually this will look like xxx.xxx.xxx ---> mail.mydomain.com when you test later on.
4. Modify the DNS records with your registrar to point the MX & A record to your new IP. You will log in create an A record for mail.mydomain.com ---> xxx.xxx.xxx (your public IP on router) and then you will create an MX record for e-mail which will simply be mail.mydomain.com with a value of 10 (there is usually a screen for this).
5. Once all the DNS is setup and working properly (Can take several days for these changes to take affect and be visible by your ISP) then you can begin the configuration of your router. You will need to determine what IP internally you want your Mac to be. Usually 10.0.0.1 or 192.168.1.1 or other and document that. Program your router to port forward ports 25,110, 80, 143 to the IP that you decided your Mac will be at so those services will be publicly available to you to user. Otherwise nobody will ever be able to send you e-mail or visit your site.
6. This is a good time to check your work and settings by visiting www.mxtoolbox.com and you verify your rDNS (setup by ISP) and your DNS (Setup by you) before beginning your setup of OS X SLS. If everything checks out then start the install if not STOP HERE and fix it because it will haunt you in the long run.
7. Start the install of SLS and at some point the system will get you to the screens at which you input your domain information. If all was setup properly up to now SLS will auto-populate the domain and local hostname of your Mac Server. U can change the local hostname if you wish but the domain name information should reflect your rDNS and A record information of mail.mydomain.com and you can hit next and proceed with the rest of the install.
8. Once up and running you will need to make a small adjustment to the alias of your e-mail. For some reason the engineers at Apple left a flaw in (my opinion) that is as such. Whenever you send e-mail it will go as [email protected] instead of what you really want which is [email protected]. So follow this post below and you will be all fixed up in a jiffy.
http://discussions.apple.com/message.jspa?messageID=10110723#10110723
Hope this helps.

DNS not querying/ recognizing/ resolving internal domain name using nslookup

I've setup a virtual lab for practice purpose on VMware 8 workstation.
I have already asked this question in vm community but still got no answers hence asking it here.
In my vmware workstation 8, for practice lab purpose my setup is as follows:-
1] Win 2k8R2 Enetrprise edi.vm as my DC with DNS & DHCP configured and working perfect. DNS is getting resolved internally via NSLOOKUP. Server has manual ip assigned...192.168.1.xx series.
2] Win xp vm as my Client and getting dhcp lease address from the above DC and also the DNS is getting resolved internally via NSLOOKUP.
Now that these two vms are communicating perfectly with each other, I thought about connecting them to my physical internet.
So, in the Virtual network editor, I added a Host-only type network named
VMnet 04 with Use local dhcp service checkbook Disabled and on each of these vms, in network adapter settings, selected specific virtual network and pointed it to
VMnet 04 in both vms.
Now, in both the vms, an additional network connection got added and hence was successfully able to browse internet from both vms.
Now the REAL problem:--
After the above configuration, when I do NSLOOKUP on the DC, the DNS doesnt resolves external sites on the internet.
I havent specified any kind of conditional forwarding etc.., its a simple DNS setup.
I want it to resolve to the internal domain and also be connected to the internet .
What setting do I need to do in DNS or in VM network?
I tried almost all types of settings in vm virtual network editor by specifying dns manually and so on but none worked.

Sorry my bad.... slight mistake in my question...Here is my corercted query--
After successfully connecting to the internet, when I do NSLOOKUP on the DC, the DNS doesnt resolve my internal domain/site but instead resolves external sites on the internet.
My computer FQDN is nri.wwe.com
Domain dns name is wwe.com
The above should get resolve internally but it searches on the internet.
This is how it should work
& it works perfect when I disable the other NAT network adapter (i.e. disable internet connectivity on my virtual DC)
C:\>nslookup nri.wwe.com
Server: nri.wwe.com
Address: 192.168.1.11
Name:    nri.wwe.com
Address: 192.168.1.11
But when I again enable internet connectivity, this it what happens.
C:\nslookup www.wwe.com
DNS request timed out.
    timeout was 2 seconds.
Server: UnKnown
Address: 192.168.12.2
DNS request timed out.
    timeout was 2 seconds.
Non-authoritative answer:
DNS request timed out.
    timeout was 2 seconds.
Name:    www.wwe.com.nsatc.net
Address: 64.152.0.124
Aliases: www.wwe.com
And when I again nslookup, this is what I get,
C:\>nslookup www.wwe.com
DNS request timed out.
    timeout was 2 seconds.
Server: UnKnown
Address: 192.168.12.2
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
*** Request to UnKnown timed-out
Now this 192.168.12.2 is VM assigned DNS via VM Natting with its own DHCP. If we do it manually, none of the virtual machines can connect to the internet. So I cannot fiddle with it anymore as I have already that as well.

Small Business Server 2008 IIS trying to authenticate an external website logon???????

I have a problem accessing an external website portal on the internet, when i select the link on the website it prompts for the username and password i then get an internal IIS authentication error ???
The website is not hosted by us but the error is defiantly from my IIS server.
I have checked everything that i can think of but no luck.
Also it seems to be only this particular website as i can log into other portals like MYOB, ATO ect without a problem.

Thanks for the reply.
When i ping i get a reply from the external IP Address of the website that i am attempting to log on to.
No totally different domain name than our domain name.
The bindings for the default website is only http
The error page i receive after typing in my credentials to the dialog box that prompts me is below.
You are not authorized to view this page
You do not have permission to view this directory or page using the credentials that you supplied.
Please try the following:
Contact the Web site administrator if you believe you should be able to view this directory or page.
Click the Refresh button to try again with different credentials.
HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.
Internet Information Services (IIS)
Technical Information (for support personnel)
Go to Microsoft Product Support Services and perform a title search for the words HTTP and 401.
Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Authentication, Access Control, and About Custom Error Messages.

10.4 dns setup correct but not working

i was working with a client to set-up VPN on an Xserve running 10.4 server; the server has been running fine for over a year and a half. We followed Apple instruction to connect the cable modem to one ethernet port (PCI), and left the internal network on the built-in. this seemed to work ok, but after running thru the Gateway Setup Assistant DNS no longer answers requests for the internal network.
I've checked the named.conf file and everything there is correct and as it was before. the same with the zone files in /var/named.
the only thing that seemed odd to me was that the resolv.conf file points to the external dns servers and not the internal server. I don't remember what they were wet-up with before, so i'm not sure if this is correct.
the server points to itself for dns in the network system preference on the internal network, but the external network gets its information via dhcp.
the only other thing we changed was to turn on the firewall and vpn.
since dns isn't working neither is kerberos even though the service is running. I'm assuming this is related and will work again once the DNS issues are resolved.
any thougths?

If this machine is a nameserver for internal, then port 53 will need to be open on the firewall for the internal interface, and the external interface will have to allow responses from port 53 both TCP and UDP.
Roger

DNS Setup for Lion.

I'm a little confused with the DNS setup for Lion Server.
My scenario is this.
I have a router, IP 10.0.0.1.
Server running DNS is manually set to 10.0.0.253.
FQDN for the server is server1.mycompany.net (it is proper registered and live domain name I have used)
Externally I use Dyndns to point external folks to mycompany.net, and through the correct ports I can hit the router/gateway with the URL. This confirms that Dyndns is working.
I have forwarded POrt 80 on the router to 10.0.0.253.
Currently I have set DNS to have a zone of mycompany.net. Within the zone I have a machine record server1.mycompany.net set to 10.0.0.253
I think I have set the reverse lookup correctly, but the way it is shown in the DNS record looks strange (IP address looks backwards and says something about ARPA.
Web Server is running on the server.
Currently if I go to a web browser inside the LAN and use either www.server1.mycompany.net or www.mycompany.net (or the same without the www) I get an error message. The same occurs outside the lan on an internet connected machine.
If I enter 10.0.0.253 from inside the lan, I get the Mac WebServer default screen, showing the server is working fine.
I'm guessing I have made a mess of setting up DNS.
I'm looking at some point set up a small website, just to prove to myself I can get this working, but I can't work out what I have done wrong.
Can anyone suggest where to look?
TIA

Right now down to diagnostics
in terminal on server type
william:~ william$ dig www.wenatcheefirst.org
below is what i get copy what you get
; <<>> DiG 9.7.3-P3 <<>> www.wenatcheefirst.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29412
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 6, ADDITIONAL: 0
;; QUESTION SECTION:
;www.wenatcheefirst.org.                    IN          A
;; ANSWER SECTION:
www.wenatcheefirst.org.          3600          IN          CNAME          wenatcheefirst.org.
wenatcheefirst.org.          3600          IN          A          205.186.154.164
;; AUTHORITY SECTION:
org.                              126088          IN          NS          a2.org.afilias-nst.info.
org.                              126088          IN          NS          d0.org.afilias-nst.org.
org.                              126088          IN          NS          b0.org.afilias-nst.org.
org.                              126088          IN          NS          a0.org.afilias-nst.info.
org.                              126088          IN          NS          c0.org.afilias-nst.info.
org.                              126088          IN          NS          b2.org.afilias-nst.org.
;; Query time: 430 msec
;; SERVER: 192.168.88.250#53(192.168.88.250)
;; WHEN: Fri Apr 13 20:08:06 2012
;; MSG SIZE rcvd: 208

Hyperlink from MY website to a specific area on EXTERNAL website

i was hoping to use an HTML snippet to accomplish this on iWeb. i've spent several hours on google, and this forum too but found NOBODY addressing this:
i need to create a hyperlink from MY website to an external url. the external page needs to open at a very specific area on the page. i see that this is done on hand-coded websites.
most iWeb discussions were about hyperlinking to lower down on the same page or within the same website where 'anchors' can be used. obviously that can't be done when linking to an external website.

Cyclosaurus i appreciate your quick advice.
the external site i am targeting is:
http://www.tcg.org/international/events/festivals.cfm
scrolling down the page, i want to land on this sub-headline beginning at "Rome, Italy"
i.e.
Rome, Italy
IL VATICANO CADE: The English title of this play by American writer Frank J. Avella is Vatican Falls, but the fi............
if that site is coded so that it can work, i would so greatly appreciate it if you can indicate the actual HTML to put inside the snippet --- i'm an artist, and the rigid 'science' of code is always a challenge. thanks again

Mail Configuration in Split DNS Setup

I am a new Snow Leopard Server admin. Was wondering about proper configuration for Mail Service in a split DNS set up. Thanks in advance for your assistance!
Here are the basic configuration details (with questions to follow):
Server's fully qualified domain name: server.domain.private
Server has a private IP address which is NATted behind the public IP address on an Airport Extreme.
Mail Service: Has public IP address on Airport Extreme and uses mail.domain.com as the internet host name. The internet domain name is domain.com
Questions:
1. In Workgroup Manager, for the mail configuration tab for each LDAP user, should the mail server be listed as the fully qualified domain name for the server (server.domain.private) or the mail service's internet host name (mail.domain.com)?
2. In Squirrel Mail server settings, should the IMAP and the SMTP local host names be the fully qualified domain name for the server (server.domain.private) or the mail service's internet host name (mail.domain.com)?
3. In Server Admin - Mail - Settings - Advanced - Security: Are the options to use or require SSL certs for SMTP and IMAP/POP only for connection between mail clients on the network and the mail server? Do they impact server to server connections for mail traffic going to a recipient outside the network?
4. In the configuration described above, is the server (server.domain.private) serving as a virtual host for the internet mail host (mail.domain.com)? If so, do we need to enable virtual hosting in Server Admin - Mail - Advanced - Hosting?
Many thanks for your assistance!

The following (a) assumes you are running internal or using VPN to access the boxes, or (b) assumes you're not using a VPN and are using remote access.
1a: I'd use the internal name here; the direct path, and not sending traffic via public DNS and NAT.
1b: external, though that sends via public DNS and NAT when you're internal, unless you have split-horizon DNS running. If you have split horizon, you'd have example.com inside and outside, but with different IP addresses depending on which DNS server you're using; usually public static IP for your public DNS and private static for private DNS names.
2a: again, internal.
2b: again, external
3: Your clients should always use an authenticated path, which may or may not include TLS/SSL. The public path is non-secure, but can and should verify the reverse path for the sending server and that reverse verification can block even your own clients operating from a dynamic remote address.
4: If you're receiving mail for multiple domains, you need be a virtual host or an alias. I tend to go virtual here, as it provides the ability to have name collisions across the domains.
5: If the server is public, then it wants/needs a public DNS translation and the requisite matching forward and reverse DNS, and it wants/needs to be the MX server, or you need to configure it to use an authorized relay. That's usually through your ISP. If you go this route, this is the external path (the "b" path) described above.

I need to select and upload a image and corresponding url from an external website using file upload control in MVC4. Please help

I need to select and upload a image and corresponding url from an external website using file upload control in MVC4.
Please help
Latheesh K Contact No:+91-9747369936

This forum supports .NET Framework setup.
As your issue appears to have nothing to do with .NET Framework setup, please ask in the MVC forums for best support.
http://forums.asp.net/1146.aspx/1?MVC

DNS Setup/View external website internally

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