I need some direction for projects i made.
I have an existing node-red in local server that send data using websocket to my domain in my hosting. Everything is working fine over http but the problem occured when i used https for my domain. I used websocket ws: before then i changed it wss: to work over https but it still did not work because i realize i need SSL certificate for my local server too. Then, I used self-signed certificate for my local server. It works but i have to manually input my local server DDNS in my browser to allow wss first then back to my hosting domain, i can't expect the users to do this.
I used DDNS on my local server because i have no static IP. I try to call for my ISP for provide static IP but it can't be done in the near future.
Because i have no static IP i can't register domain and i can't use CA Certificate for local server SSL.
My question is:
Is there a way to allow ws to work over https?
If not, is there a way to allow unsafe wss on my domain page over a button or a prompt when user go to my page? so user don't have to manually input my local server DDNS.
Or other way you may suggest.
No, Websocket connections are bootstrapped over HTTP, Secure Websocket connections over HTTPS. The TLS session is setup by the HTTPS connection.
It's not clear what you are asking here. But the only way to get a self signed certificate to work with a websocket connection is to install that certificate into the browsers trusted certificate store before trying to access the site. The browser will not prompt to trust a certificate for a websocket connection.
You can use Letsencrypt with a proper Dynamic DNS setup. This is where you have a fixed domain name and a script on your machine that updates the IP address the domain name points at. The hostname will stay the same so the certificate issued will always have the correct CN/SAN entry. Letsencrypt certificates are signed by a trusted CA certificate that will already be present in your browser.
Related
I am new to server management and all that HTTP stuff. I am setting up an internal server for my home to serve websites internally, my website needs to register a service worker and for that, I'll need an SSL Certificate and HTTP connection, which seems impossible in my case as all localhost or internal IPs are served over HTTP with untrusted SSL Certificates.
If anyone could suggest a way around serving websites over HTTPS with trusted certificates so that service worker can be used.
Note: I'll be using Xampp Apache for my Linux server with a static internal IP.
If you need 'trusted cert for any client', I may say "no way".
But if you need 'trusted cert for your client only', you have a way to do that.
I guess you published self-ssl cert for your Apache. In the case, you just install the cert into your client.
example: The following link tell us the case of client = Chrome on Windows.
https://peacocksoftware.com/blog/make-chrome-auto-accept-your-self-signed-certificate
If you use any programming language as a client, you may need another way to install the cert.
My server has a main site which have SSL certificate installed. There is also a linux management panel which runs on port 8080 that does not support SSL. What I want is that the traffic from the client to CloudFlare is encrypted with CloudFlare's certificate, but leave the connection from CDN to my VPS server non-secure. Right now the SSL/TLS encryption mode is set to flexible, edge certificates shows active, and also I've turned off "always use https". When i tried to access the 8080 port with https prefix however I couldn't get through. Can someone offer me a way to acheive this: traffic from client to CDN encrypted, while CDN connects unsecured to my server. PS: I'm using the free plan of CloudFlare and since it's a personal site and I do not want to induce extra cost, hope I can solve this with in the free plan.
There are two ways to solve your problem using Cloudflare without any additional cost.
First of all turn ON always use HTTPS
Changing Flexible to Full in SSL/TLS setting in Cloudflare (Simple Way, No need any other setup in your server).
Which will encrypt the data transfer from Cloudflare to your server using a self-signed certificate.
Changing Flexible to Full(Strict) in SSL/TLS setting in Cloudflare (Need some work in your server).
For Full(Strict), Go to your origin server tab in SSL/TLS and press create a certificate to get your SSL Certificate. But this certificate is only valid between your server and cloudflare.
Then you need to install those certificates on your server.
Additional Steps(As you don't have an HTTPS setup in your VPS):
As you are using the port in your Webserver. So reverse proxy your application running on port 8080 using Apache, Nginx on the port 443. Check this answer for some idea.
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.