SSL refers to Secure Sockets Layer, a security protocol that has been replaced by Transport Layer Security (TLS). TLS is still commonly referred to as SSL.

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226
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6answers
421k views

How to save a remote server SSL certificate locally as a file

I need to download an SSL certificate of a remote server (not HTTPS, but the SSL handshake should be the same as Google Chrome / IE / wget and curl all give certificate check fail errors) and add the ...
210
votes
20answers
299k views

How do I list the SSL/TLS cipher suites a particular website offers?

How can I retrieve a list of the SSL/TLS cipher suites a particular website offers?I've tried openssl, but if you examine the output:$ echo -n | openssl s_client -connect www.google.com:443 ...
74
votes
2answers
28k views

Why do some websites show the company name next to the URL?

Some websites show the company name next to the URL (in Chrome) and some don't.How do I set this up for my website? Is there a reason why or why I wouldn't want to do this?
66
votes
12answers
46k views

Why won't OS X trust GitHub's SSL certificate?

When I go to any github.com page in Chrome, I get a big ugly error:You attempted to reach github.com, but the server presented acertificate issued by an entity that is not trusted by your ...
63
votes
5answers
160k views

Add permanent SSL certificate exception in Chrome (Linux)

I have a problem with a website that has an SSL certificate which doesn't correspond to the website domain. Chrome gives me a warning for this website (and rightly so), which I have to ignore manually....
62
votes
5answers
58k views

What is the difference between a certificate and a key with respect to SSL?

Whenever I try to understand anything about SSL I always have a hard time keeping track of what "key" and "certificate" refer to. I fear many people use them incorrectly or interchangeably. Is there ...
47
votes
4answers
14k views

Firefox “Untrusted Connection” warnings when visiting reputable HTTPS sites when using child's account

When using Firefox on Windows, I see an "Untrusted Connection" warning when visiting any HTTPS site, including very reputable ones such as https://www.google.com and https://search.yahoo.com. The ...
47
votes
3answers
81k views

How to create my own certificate chain?

I would like to setup my own OCSP Responder (just for testing purposes). This requires me to have a root certificate and a few certificates generated from it.I've managed to create a self-signed ...
42
votes
3answers
36k views

Can the telnet or netcat clients communicate over SSL?

I would like to test client connections with IMAP over SSL, HTTPS, and other secure text-based Internet protocols over SSL/TLS, the same way I would using telnet or netcat if they were not tunneled ...
35
votes
3answers
90k views

Can I use another port other than 443 for SSL communication?

I have an application that communicates via SSL, however, Port 443 is already in use by an IIS instance on that same server. Can I use another port other than 443 for SSL communication?
34
votes
5answers
186k views

Enable TLS 1.1 and 1.2 for Clients on Java 7

Java 7 disables TLS 1.1 and 1.2 for clients. From Java Cryptography ArchitectureOracle Providers Documentation:Although SunJSSE in the Java SE 7 release supports TLS 1.1 and TLS1.2, neither ...
31
votes
1answer
41k views

How to easily create a SSL certificate and configure it in Apache2 in Mac OS X?

I'd like to use my Mac OS X with https for local development tests.How can I easily make Apache2 respond to ssl, just for test proposes - I don't want a real certificate, just a fake to make local ...
31
votes
1answer
49k views

How do SSL chains work? [closed]

Why are intermediate certificate authorities required? When would an intermediate certificate be used? How do I verify the chain from the intermediate certificate to the root certificate? What are ...
28
votes
2answers
89k views

Windows 7 will not install a root certificate

I have a web service that uses a self-signed certificate, so I need to install the certificate as a Trusted Root so that I can avoid all the security errors that having a self-signed certificate ...
26
votes
2answers
6k views

What is the superfish SSL certificate and where did it originate

I recently bought a new laptop, every https:// connection I do to any site regardless of browser chain back to a root certificate issued by "superfish, inc". I have had a dig around but I can't seem ...

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