I'm working on an EN store for a client, which is on a separate domain from the original language (and this second domain does not - yet - have a valid SSL certificate).
When sending emails, the images are visible on yahoo. However, on gmail they are missing (404). The image URLs generated by gmail look like this:
https://ci4.googleusercontent.com/proxy/A_CCC-sd3OA3rSPyxMwmVMzZQrdMke4_UkaB1B7QZO_J-#https://www.bla-bla.com/images/en/discounts.jpg
https://www.bla-bla.com/images/en/discounts.jpg works fine if copied in a separate tab, but not in gmail.
Is it possible that the images are not shown because of the missing SSL certificate ? I'm not sure where I can find some documentation on these rules.
Related
I built a website some time ago with Flask. Now all of a sudden when I try to navigate there I get the following:
NET::ERR_CERT_COMMON_NAME_INVALID
Your connection is not private
Attackers might be trying to steal your information from www.mysite.org (for example, passwords, messages, or credit cards). Learn more
Does anyone know what's going on?
The error means: The host name you use in the web browser does not match one of the names present in the subjectAlternativeName extension in the certificate.
If your server has multiple DNS entries you need to include all of into the certificate to be able to use them with https. If you access the server using it's IP address like https://10.1.2.3 then the IP address also have to present in the certificate (of course this only makes sense if you have a static IP address that never changes).
The certificate subject alternative name can be a domain name or IP address. If the certificate doesn’t have the correct subjectAlternativeName extension, users get a NET::ERR_CERT_COMMON_NAME_INVALID error letting them know that the connection isn’t private. If the certificate is missing a subjectAlternativeName extension, users see a warning in the Security panel in Chrome DevTools that lets them know the subject alternative name is missing.
https://support.google.com/chrome/a/answer/7391219?hl=en
For Chrome 58 and later, only the subjectAlternativeName extension, not commonName, is used to match the domain name and site certificate. So, if you are missing the Subject Alternative Name in your certificate then you will experience the NET::ERR_CERT_COMMON_NAME_INVALID error.
In order to have a Subject Alternate Name (SAN) on an SSL certificate, you must first edit your OpenSSL configuration. On Ubuntu/Debian, that can be found at /etc/ssl/openssl.cnf Find the section of that file with the heading [ v3_ca ], you can add the line with your SAN there:
subjectAltName = www.example.com
I'd like to connect to my website via https urls also if at the moment I don't have any certificate. I want to do this to test the URL structure on all pages. Is this possible?
If I digit https://www.example.com I see a blank page.
There is no way to get around needing a certificate for an https connection, however you can go for the free option of a self-signed certificate. Have a look into a service such as http://www.selfsignedcertificate.com/ to get the key and certificate created for your website.
I'm trying to send AJAX requests to the REST API website that uses self-signed certificate.
The problem is that when I first visit that website it is complaining about this certificate issue. When I do an AJAX request (without accepting this certificate first) it fails silently.
The question is what to do in this case? Should I ask the user to go to this website and accept this certificate? Is there a way to do that in elegant way? I know that this certificate should have been signed in the first place, but I don't have an access to that website. Using http is not an option.
I have had this same problem several times. The best I could come up with was something like this: check for a cookie, if they have it, do nothing, if they do not have it, issue a re-direct to the site that generates the cert warning, user accepts the self-signed cert, then the user just needs to go back to your site. If you had any control over the api side, you could probably make it so that you have a bounce back url or something that ends up getting the user back to your site. There really is no elegant way to handle this short of just getting a real SSL cert. On another site, we ended up having to put a link to the service on our page for this very reason, fortunately it was temporary as we had control over the server side too, and planned on replacing the self-signed cert with a real one.
This is security doing its job. It may not being doing a good job as far as handling what the user is supposed to do, but you really should sign your certificate with a valid CA instead.
We are getting security message like this while executing url:
There is a problem with this website's security certificate. The security certificate presented by this website was not issued by a trusted certificate authority.
Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server. We recommend that you close this webpage and do not continue to this website. Click here to close this webpage. Continue to this website (not recommended).
More information
Same type of security alerts with message like this
This page is accessing information that is not under its control. This poses security rish, DO you want to continue?
How to avoid them through code either javascript, jsp or any way. We can not ask each user to modify their internet options. Please let me know if there is any solutions for this
That's browser behavior that you can't and shouldn't be allowed to modify using JavaScript, or anything else for that matter. In fact, these security alerts are there to warn the user that something is (potentially) wrong. If you could disable them, there would be no point in having them, right?
Fix whatever problems you have with the security certificate and you'll be fine. I'll guess here that your certificates are self-signed - buy one. They are not that expensive.
You need to install a current, valid certificate on your web server.
There is a problem with this website's security certificate could mean you need to check that the clock is set correctly.
Host all content on an https website. not an http one. You do not need a certificate then.
1> The security certificate presented by this website was not issued by a trusted certificate authority.
This message indicates that the page is using a HTTPS-based resource which has a certificate which does not chain to a globally trusted root certificate. If you don't know what resources/URLS are causing this, open the F12 Developer Tools and look at the Console tab, or run Fiddler and watch for the warning popup.
2> This page is accessing information that is not under its control. This poses security risk, DO you want to continue?
This message is shown when you attempt to use an XMLHTTPRequest object to request data from a cross-domain location (e.g. www.domain.com tries to grab data from domain.com). That operation is a violation of Same-Origin-Policy.
By default in IE, this is blocked, but inside the Intranet Zone, this feature is set to Prompt and thus you see this message instead.
To fix this, either change the request URL so that it does not go to a different domain, or use XDomainRequest, or use a serverside proxy page to make the cross-origin data request from the server rather than the client.
The Problem:
I am creating a vb6 application that will connect to a particular web service located on a a HTTPS site. The problem is, the HTTPS site I'm accessing requires all request to accept it's certificate policy. (as its a self-signed ssl certificate)
Basically I need the application to accept security certificate dialog boxes automatically. A sample security dialog is shown below:
Cheers in advance.
#EDIT:
I Cant' post an image yet as i am a new user... Please see the url below for a sample image:
http://oit.nd.edu/network/nomad/images/ie_certs.gif
Look for a property named Silent.
You will have to catch some other event, to reply to that dialog box. Although, I am not sure what is the behavior, if you set the Silent to true (i.e does it assume it to be Yes or otherwise?).
Most of HTTPS sites I know use self-signed certificates.
I don't know VB6 APIs for HTTPS, but for example in Java you should provide it a copy of the site certificate beforehand. That is:
export a copy of the certificate, for example from your browser certificate repository (in Firefox: Tools->Options->Advanced->Encryption->View Certificates etc.) - supposing you have have already visited the site with your browser;
detect which certificate repository your HTTPS API points to (there certainly is one)
import certificate into that repository
execute your program