I have 2 IIS web servers with my website hosted. I have a 3rd server with IIS for ARR. I have created a server farm with name ABC.com on 3rd server and added the 2 IIS web servers to the farm. Disabled SSL offloading for security purpose.
My website name is https ://www.ABC.com. I have mapped my website name to IP address of 3rd ARR server.
Correct me if I am doing wrong.
I want the request flow to have https throughout the request.
Now in which server should I create CSR request for SSL certificate, and where all should I install the SSL certificate.
Only 1 SSL is required or multiple SSL certificates are needed?
Should I use ABC.com farm name while creating CSR?
After research I found that SSL has to be created on IIS Webserver seperately and IIS ARR server separately. And they have to be installed on the respective servers where created.
Related
I have a website in my local network and the website is not ssl secured.
Many clients can not reach the website because of
"ERR_SSL_VERSION_OR_CIPHER_MISMATCH"
Is there any way to secure websites in a local network with ssl? I am using an Active Directory Server in my network.
There are also a lot of local Websites on a vmware that are not secured. I would like to secure them easily.
• I would suggest you to please install ADCS (Active Directory Certificate Services) role in your Active Directory and create a self-signed SSL certificate through it for your internal use. Since, Active Directory is a trusted public key authentication infrastructure provider, the concerned role installed on it for the said purpose does not need certificates from globally trusted CA (certification authority) and can be thus, used locally. For the time being, if you want to create a self-signed SSL certificate on the concerned server, you will have to install ‘Web Server (IIS)’ role and then open the ‘IIS manager’ console from where you can generate the SSL self-signed certificate and bind the same to the website on that server itself. For this process, kindly refer to the link below which explains in detail the steps to be followed for generating a self-signed certificate and binding it to a website: -
https://www.thewindowsclub.com/create-self-signed-ssl-certificates-in-windows-10
Please note that the above stated process is for that server on which the website is hosted locally. Thus, the self-signed certificate generated will not be useful on other servers in your environment.
• To generate an SSL certificate for a web service/website that is hosted on a cluster of servers configured for the same purpose/website, then you will have to configure an SSL certificate template from a root CA, in your case, an AD server installed with ADCS role will serve as a root CA in your domain environment. Then assign that template to the CA (AD server in your case) for it to authorize the issuing of the configured SSL template to the concerned server where the website for which this SSL certificate is to be installed is hosted. For more detailed information regarding this, please refer to the documentation link below: -
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/dn781428(v=ws.11)#obtain-an-ssl-certificate-from-ad-cs
Please note that the above link states the issuing of the SSL certificate for an ADFS Server. You will need to change the Subject Name of the issued certificate to that website for which you are issuing this certificate.
I have a domain served at server A and I have set up an A-record to server B.
For http://mypage.com all works fine.
But there is also SSL on the domain. On server B there are a few virtual hosts set up. One of which has an SSL virtual host (443), theirpage.com. If I now go to https://mypage.com I end up at theirpage.com.
If I set up mypage.com MUST I have the SSL certificate from server A available for this new specific ssl-virualhost? The provider at server A does not share their ssl-certificates...
Assuming:
Server A - DNS only, no web services.
Server B - Web server.
The following is extreme oversimplification of what actually happens. For simplicity we exclude all caches, networking and application complexity.
What happens on the client:
User navigates to mypage.com (HTTPS)
Browser/OS does a lookup of who mypage.com is; receives the IP
Browser attempts to establish secure connection with IP of a webserver.
It is at this point browser will look at the SSL certificate provided by your web server. That certificate must be signed by trusted authority and have a valid alternate name of mypage.com. Not signed or name does not match to what user typed into the browser you will receive a certificate error.
If the certificate passed:
Browser will complete establishing connection
Browser will request a content named mypage.com
Browser displays content revived from the web server
In this scenario only web server must have a valid certificate, prooving to the client that it is indeed the server client attempts to connect to.
HTTP Scenario is similar, but connection is not secured and site will load. Most of the websites setup redirect request on HTTP calls, forcing the user's browser repeat it's request via HTTPS protocol.
I am quite confused here:
I use DNSMadeeasy to manage my DNS. I have two apps.
One is Heroku hosted, and has https on https://example.com - Heroku has many great tutorials to setup the certificate, it hasn't been a problem.
The other one is a wordpress, hosted in 1and1 (though it shouldn't matter here), and is reachable at http://subdomain.example.com and we want it to be available at https://subdomain.example.com
1and1 does sell SSL certificate, but their automated setup works only when one uses their services for DNS also, as they say. Their support says it should be DNSMadeEasy which should be hosting our SSL certificate. I have the feeling it is not true, because for https://example.com, DNSMadeEasy was never involved.
Questions:
When does certificate querying occurs? Before, After, or in parallel of DNS resolution?
Who is hosting a certificate? The DNS provider? The server (accessible like a sitemap.xml at the root for instance)? A third party?
To enlarge the case, in general if I have a personal server with a fix IP, how can I communicate through https with a valid certificate?
In my case, how can I get my way out of it to make https://subdomain.example.com work?
You are right for not believing the 1and1 suggestion.
To answer your questions:
When does certificate querying occurs? Before, After, or in parallel
of DNS resolution?
A client resolves domain name to an IP address first. So DNS resolution happens first.
Who is hosting a certificate?
The server (in simplistic terms) hosts the certificate.
When a client wants to connect to your site (via HTTPS) it will first establish a secure connection with that IP address on port 443 (this is why usually (without SNI) you can only have one SSL certificate per IP address). As part of this process (which is called handshake) a client can also specify a server name (so-called server name extension) - this is a domain name of your site. This is useful if you have an SSL certificate that is valid for multiple domains.
A good/detailed explanation how it works can be found here
http://www.moserware.com/2009/06/first-few-milliseconds-of-https.html
if I have a personal server with a fix IP, how can I communicate
through https with a valid certificate?
Your server will need to be able to respond on port 443 and have/host an SSL certificate for a domain that resolves to that IP address.
In my case, how can I get my way out of it to make
https://subdomain.example.com work?
You need to purchase a certificate for subdomain.example.com and install it on the wordpress server.
Usually in hosted solution like yours you have 2 options:
Buy the SSL certificate via the provider (1and1 in your case) - a simpler option, they will configure everything for you.
Buy the SSL certificate yourself. Here you will most likely need to login to your 1and1/Wordpress management interface and generate a CSR (essentially a certificate request). Then you purchase the SSL certificate using this CSR and then you can install it via the same management interface.
The process will look similar to this:
http://wpengine.com/support/add-ssl-site/
I have a IIS 7 server hosting a few different sites. Recently I purchased and installed a SSL certificate to one of the site. Both http and https binding are setup with host header xxx.com and www.xxx.com.
But now i discover that other site with no SSL is loading the certificate and show the untrusted cert error when accessing through https.
Can i know how I can stop other non SSL site from loading the certificate?
Thank you.
I assume that
you are using the server on a single IP address
provide service for multiple names on this single IP address
have configured SSL for some of the names but not for others
This means, that
The server is listening on this specific IP address for SSL connections.
The server can only decide after receiving the initial SSL request from the client (ClientHello) which certificate it should use. The Client hash to use SNI (server name indication) to tell the server which hostname it expects. Most newer clients support this but for example IE8/XP does not.
Since the server has to listen for SSL connections on this IP address it can happen, that it receives a SSL request for a hostname, where it has not certificate configured. In this cases a server could do the following:
Use some other certificate it has configured. This is what your server is doing. This results in an error on the client about an invalid certificate since the name in the certificate does not match the expected name.
Simply close the connection or issue some SSL error. This would result in an SSL handshake error on the client which browsers usually display in a way so that end users are not able to understand what's going on. For the browser the situation is simply a server error and the server is not able to give the browser more detailed information (this is not part of the SSL protocol).
If you don't like any of these two problems you must serve the non-SSL hosts from a different IP address than the SSL hosts, so that the server will not even listen on the SSL port for connections for the non-SSL hosts.
I hope this explanation helps with your problem. If you have now specific questions about the configuration of the server to achieve the outlined solution you should ask them at serverfault.com instead.
I'm looking for information on how to configure an HTTP load balancer or proxy server (squid, nginx, HAProxy, etc.) to handle the SSL for my domain as an alternative to adding Heroku's SSL Endpoint add-on for $20/month.
The load balancer or proxy server would terminate the SSL connection and the last leg to the heroku server would be over http.
SSL is now included on all paid dynos. Thus, you pay only the certificate price.
https://blog.heroku.com/ssl-is-now-included-on-all-paid-dynos
A new add-on was added a few short months ago called Expedited SSL. This add-on provides you with both the registration of an SSL certificate along with the endpoint for serving it, whereas SSL Endpoint is only the endpoint used to serve the SSL certificate you've already purchased from an SSL provider.