Can I have EV SSL for my main domain (say www.example.com) and Wilcard SSL for my subdomains (say eb1.example.com, eb2.example2 etc)?
If yes, then can you please let me know how to configure it?
If not, then please suggest me alternate methods.
All the subdomains and the domain will be hosted on Amazon and will have one IP.
Yes, you can purchase an EV SSL Certificate for your main domain and wildcard SSL certificate for the sub domain names.
Please ensure that the Main domain has a dedicated IP Address and it is not shared with the sub domains.
You can have use multiple certificates at the same time which overlap in the subjects like in your case. To have multiple certificates for the same IP address the serve and client must support SNI. Most modern server and browsers do. But older browser like IE8 on XP do not and support within non-browser application is mixed.
Related
I have a domain(GoDaddy), say example.com and standard SSL certificate to protect it. The combo works fine to setup a secured website hosted in Apache2 at https://www.example.com
Can the same SSL certificate be used for more subdomains like https://api.example.com and https://learn.example.com?
Standard SSL certificate can only secure single domain name for example example.com but it can secure api.example.com, learn.example.com but for that you will have to purchase separate standard SSL certificate for each sub domain.
So in this case Wildcard SSL certificate will remain the best option to secure first level of unlimited sub domains of the main domain name (example.com) like api.example.com, learn.example.com,payment.example.com etc. etc.
If you want to protect multiple sub domains like https://api.example.com and https://learn.example.com, you need a wildcard SSL Certificate which can cover unlimited number of sub domains.
Additionally, if you want to protect both multiple domains or sub domains, you can use multi domain wildcard SSL Certificate.
I have Wild Card SSL Certificate and i need to implement it on multiple domains. on first it is being implemented and on second i have to implement. Is it possible that i can implement the same certificate on Two Domains. Domains are hitting the same IP Address, means hosted on same server. But having different Domains first is like: https://erp.example.com and Second is http://app.example.com. Both application are differently hosted on IIS.
Please suggest.
If the certificate is a *.example.com cert, then yes, you can. That is, after all, the whole point of a wild card certificate: to support any domain combination of the base domain.
We do it ourselves.
I'm unsure if that is your actual question though.
If you have enabled your Wildcard SSL certificate for your domain *.example.com then yes you can secure both subdomains erp (.dot) example.com and app (.dot) example.com.
Below resources will help you to install Wildcard SSL certificate on IIS server very easily:
https://knowledge.geotrust.com/support/knowledge-base/index?page=content&id=SO19990
https://www.clickssl.net/blog/how-to-install-wildcard-ssl-certificate-in-iis-7
You are questioning about two domains, but actually you have two sub-domains under single domain and if you already have Wildcard SSL certificate, your all sub-domains will be protected. Wildcard SSL issued on *.example.com will automatically secure unlimited number of sub-domains. It does not really matter your sub-domains are hosted on same server or differently, you can secure all with Wildcard Certificate.
What will be secured with single Wildcard SSL;
https://app.example.com
https://erp.example.com
https://anything.example.com
Ps: Wildcard certificate will help you secure sub-domain only first level.
I have one website will be accessed by multiple different domains and will have separate SSL certificates for each.
Is it possible?
IF no then Is there any work around to install multiple certificates for single web site?
Instead of having separate SSL certificate for each domain you can go for Multi domain certificate using Subject Alternative Names (SAN). It will be single certificate with multiple domains. Following image shows SAN certificate.
Image Courtesy : DigiCert
SSL Certificate can only be issued to a FQDN (fully qualified domain name).
You better have elaborated your question with examples. By the way, let me guess and try to answer. As you said “You have one website – will be accessed by multiple different domains” - if I'm not wrong your are talking about one website which may be www.domain.com and multiple domains may be sub-domains like, blog.domain.com, photos.domain.com or anything.domain.com. If I have hit bulls eye, you don't need to get different SSL Certificates because all this domain can be secured with single Wildcard SSL Certificate. Wildcard SSL works on asterisk, so it will issued on *.domain.com and anything in place of asterisk will be covered.
But make a note, Wildcard SSL can work only on single level so something like blog.photos.domain.com will not be secured if you have got certificate for *.domain.com
Different Scenario: If you have something like this, domain.com, domain.co.uk, domain.com.eu etc. and it can be secured with different certificates. It may be costly deal if you have 20-30 or more domains, ideally you can get one multi-domain certificate to secure all these. Visit this article which will help you understand difference between Wildcard SSL and SAN functionality more deeply.
I've let cloudflare manage the DNS of my example.com
I have created id.example.com for country's specific customer. I've done it by created cname id with alias example.com
I need to create customer portal: my.id.example.com. How?
In Cloudflare, open the DNS records for domain.example
Create a A record for example.id and enter the IP where my.id.domain.example will be hosted, and add record
Setup the site my.id.domain.example at the IP you specified
If domain.example is on Cloudflare and the Cloudflare nameservers have propagated, the sub-sub domain propagation should be more or less instant
As correctly noted by ThorSummoner and user296526, this will work on the Cloudflare free plan if you aren't using SSL.
If you want to have a sub sub domain with SSL on Cloudflare, you need to a dedicated Cloudflare dedicated SSL certificate which is available as a paid plan. To quote from the Cloudflare site:
Cloudflare Dedicated Certificate with Custom Hostname: $10 per domain
per month
Includes all benefits mentioned above for Dedicated Certificates
Protects your domain, subdomains (*.example.com), as well as up to 50
additional hostnames Can extend protection beyond first-level
subdomains (*.www.example.com, not just *.example.com) Dedicated SSL
certificates typically provision within a few minutes but can take up
to 24 hours.
Full details here
The accepted answer works fine only if you are not using SSL. As mentioned by #ThorSummoner, cloudflare wildcard SSL certificate is only valid for your domain example.com and *.example.com. It is NOT valid for *.*.example.com (Sub Subdomains or fourth level subdomains).
In order to have SSL for your fourth level subdomains, you will have to be on a paid cloudflare plan and will also need to buy a dedicated SSL certificate from within cloudflare control panel.
Please refer to below pages for more info:
https://support.cloudflare.com/hc/en-us/articles/219453397-Can-I-use-CloudFlare-SSL-certificates-on-my-fourth-level-subdomain-
https://support.cloudflare.com/hc/en-us/articles/228009108-Dedicated-SSL-Certificates
You need to create the subdomains at your hosting provider first, then you would come to your CloudFlare DNS settings and enter in the DNS records so that it resolves.
CloudFlare doesn't support true subdomains (i.e., subzones with nameserver delegation). But it does support what you want, i.e. specific records within a subdomain served by the same zone.
Simply create your record as you would any other record, and use my.id as the name (note the dot.) Lookup will work as you would expect it.
AFAIK, SSL is assigned to a single domain name (maybe several subdomains via wildcard).
On the other hand i heard that the webserver does not see the domain before it serves the ssl?
If I have multiple domains running as vhosts on one IP address:
Q1: Can the webserver serve the appropriate respective SSL to the sites?
Q2: Is there a way to have only one multi-domain SSL serving two domains on one IP?
Illuminate me out of confusion brought upon me by this seemingly self-contradictory quote:
Regular SSL Certificates are issued for a single FQDN (Fully Qualified
Domain Name). The domain using the certificate has to have its own
unique external IP address from which to be served. In practice, this
means that if you have multiple domains on a single IP address/server,
then you had to install a separate certificate on each domain you
wanted to secure.
The reason for this is the use of 'Host-Headers'. They allow a
web server to use a single IP address to serve many separate sites
with different FQDNs. They do this by identifying the incoming request
for a webpage, and routing it to the correct site accordingly.
When an SSL connection is initiated, the server must send a
certificate to the client - before it knows the host-header of the
request. The only identifying piece of data it has is the requested IP
address. As such, two or more sites on one IP address cannot use
different SSL certificates....
Q1> the web server doesn't need to know the domains embedded in an SSL cert. only the browser does since it's the one making sure the domain in the certificate matches the domain in the address bar. The web server just serves up the cert bound to the ip address, regardless of what domain is in the certificate.
Q2> what you describe is a SAN or UC certificate. They are designed to do what you stated, namely allow multiple domains to share one cert on one ip address. Check out this link on Subject alternative names for more info