SSL and its successor, TLS, are encryption and authentication protocols that encrypt the full contents of a TCP connection, as well as potentially verifying the identities of the devices making the connection.

learn more… | top users | synonyms

93
votes
5answers
57k views

Multiple SSL domains on the same IP address and same port?

This is a Canonical Question about Hosting multiple SSL websites on the same IP. I was under the impression that each SSL Certificate required it's own unique IP Address/Port combination. But the ...
16
votes
4answers
1k views

SSL certificate selection based on host-header: is it possible?

Is it possible for a web server to select an SSL certificate to use based on the host-header of the incoming connection, or is that information that is only available after the SSL connection is ...
21
votes
9answers
15k views

Multiple domains with SSL on same IP

I know that a dedicated IP is needed for setting up SSL. What happens if we add SSL for domains sharing an IP ? (Namevirtualhost)
29
votes
2answers
10k views

SSL password on apache2 restart

I setup wildcard SSL certificate from Godaddy on Apache2. Whenever the server restarts it asks for the passphrase for the SSL certificate's private key. What's the best way to remove this obstacle ...
7
votes
2answers
742 views

Difference between SSL products

I'm looking into getting a few SSL certificates for domains to cover the following: autodiscover.example.com remote.example.com www.example.com Wildcard certificates are too expensive, so I'm ...
130
votes
8answers
128k views

How to force or redirect to SSL in nginx?

I have a signup page on a subdomain like: https://signup.mysite.com It should only be accessible via HTTPS but I'm worried people might somehow stumble upon it via HTTP and get a 404. My ...
10
votes
2answers
6k views

SSL site not using the correct IP in Apache and Ubuntu

I'm trying to set up an apache-ubuntu-php webserver. My webserver will host multiple SSL sites, each SSL site will have it's own IP address (unless there's a better way to do this). So I suppose the ...
30
votes
1answer
38k views

Configure custom SSL certificate for RDP on Windows Server 2012 in Remote Administration mode?

So the release of Windows Server 2012 has removed a lot of the old Remote Desktop related configuration utilities. In particular, there is no more Remote Desktop Session Host Configuration utility ...
6
votes
1answer
1k views

How to stop HTTPS requests for non-ssl-enabled virtual hosts from going to the first ssl-enabled virtualhost (Apache-SNI)

I hope that title is clear. How do I prevent HTTPS requests for non-ssl-enabled virtual hosts from going to the first ssl-enabled virtualhost (setup is Apache-SNI). For example, using my abbreviated ...
1
vote
1answer
177 views

Understand ssl setup

Goals: If the user support SNI and hit myurl1.server.com (https) or myurl2.server.com (https) it will match the right vhost. (the last 2 vhosts) If the user does not support SNI and hit ...
2
votes
1answer
649 views

Weird http -> https redirection although not configured

I am running Apache 2.2.15 (CentOS 6.6) with a HTTP-only domain demo.xml-director.info Using wget I can retrieve the content properly wget -S http://demo.xml-director.info --2015-01-05 13:31:41-- ...
28
votes
3answers
41k views

stop apache from asking for SSL password each restart [duplicate]

Using instructions from this site but varying them just a little i created a CA using -newca, i copied cacert.pem to my comp and imported as trusted issuer in IE. I then did -newreq and -sign (note: i ...
41
votes
7answers
34k views

Wildcard SSL certificate for second-level subdomain

I'd like to know if any certificates support a double wildcard like *.*.example.com? I've just been on the phone with my current SSL provider (register.com) and the girl there said they don't offer ...
22
votes
7answers
12k views

Can I be my own trusted CA via an signed intermediate certificate?

Can I get a certificate from a root CA that I can then use to sign my own web server certificates? I would, if possible, use a signed certificate as an intermediate to sign other certs. I know that I ...
31
votes
3answers
31k views

SSL Certificate Location on UNIX/Linux

Is there any standard or convention for where SSL certificates and associated private keys should go on the UNIX/Linux filesystem? Thanks.
17
votes
8answers
37k views

How do I disable SSLv3 support in Apache Tomcat?

I am trying to reconfigure my Apache Tomcat server to only use TLSv1. However, it is still falling back to SSLv3 using certain browsers. I setup the <connector> tag with the following settings: ...
13
votes
4answers
58k views

How can I see what version of SSL a web server is currently using?

I believe I have disabled SSL 2.0 on my web server (Windows Server 2003). To make sure that it is now using SSL 3.0, how can I check this? What is the correct way to disable 2.0 and enable 3.0 on a ...
19
votes
2answers
26k views

SSL routines:SSL23_WRITE:ssl handshake failure

I'm trying to use OpenSSL to connect to an SSL server. When I run: openssl s_client -connect myhost.com:443 The following SSL client configurations work just fine: Windows (OpenSSL 0.9.83e 23 ...
2
votes
2answers
379 views

Stop default SSL response on Shared IP using SNI

Previously I asked a question here: Single domain SSL presented for all domains on Shared IP about setting up secure and non-secure domains on a single IP. Opinions were mixed, but it appears SNI ...
10
votes
4answers
39k views

SSH issues: Read from socket failed: Connection reset by peer

I compiled OpenSSH_6.6p1 on one of our server. I am able login via SSH to the upgraded server. But I am not able to connect to other servers running OpenSSH_6.6p1 or OpenSSH_5.8 from this. While ...
17
votes
7answers
70k views

Apache VirtualHost with mod-proxy and SSL

I am trying to setup a server with multiple web applications which will all be served through apache VirtualHost (apache running on the same server). My main constrain is that each web application ...
45
votes
5answers
14k views

How to decide where to purchase a wildcard SSL certificate?

Recently I needed to purchase a wildcard SSL certificate (because I need to secure a number of subdomains), and when I first searched for where to buy one I was overwhelmed with the number of choices, ...
10
votes
1answer
10k views

Apache SSL VirtualHosts on a single IP using UCC/SAN certificate

I need to host several Apache virtual hosts with SSL from a single IP. Now - I understand that because SSL wraps around the HTTP request, there's no way to know which host is being requested until a ...
10
votes
5answers
16k views

How to create a multi-domain self-signed certificate for Apache2?

I've got a little private webserver where I have several virtualhosts. I know that it's impossible to assign a certificate to each individual virtualhost, because the server finds out which ...
17
votes
1answer
3k views

How to mitigate POODLE but keep SSLv3 support for old clients

How do I mitigate the POODLE attack, but still keep support for old clients such as IE6 on Windows XP or an e-mail client. I've noticed that google does this: ...
15
votes
3answers
22k views

How to disable SSLv2 or SSLv3?

Anyone know how to disable certain SSL versions and only enable others in IIS 7.5?
30
votes
2answers
10k views

Must CSRs be generated on the server that will host the SSL certificate?

Is it necessary to generate the CSR (Certificate Signing Request) on the same machine that will host my web application and SSL certificate? This page on SSL Shopper says so, but I'm not sure if ...
8
votes
4answers
20k views

Need help trouble shooting Https webserver error - SSL Handshake failed

I followed this guide: http://hints.macworld.com/article.php?story=20041129143420344 Here is my virtual host definition <VirtualHost *:443> SSLEngine on SSLProxyEngine On ...
7
votes
2answers
11k views

sendmail rejecting some connections with handshake failure: SSL alert number 40

My sendmail server on CentOS 5 started to reject some connections with the following message logged: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c:1092:SSL alert ...
5
votes
1answer
6k views

Can nginx listen on port 80, but send upstream to backend using SSL on 443?

For PCI compliance, my application is forced to use a secure/encrypted connection between the reverse proxy server and backend app server, whereas the connection coming into the reverse proxy is on ...
4
votes
1answer
899 views

For enabling SSL for a single domain on a server with muliple vhosts, will this configuration work?

I just purchased an SSL certificate to secure/enable only ONE domain on a server with multiple vhosts. I plan on configuring as shown below (non SNI). In addition, I still want to access phpMyAdmin, ...
8
votes
2answers
22k views

Stunnel won't work with SSLv3 from some hosts

WARNING: SSLv3 is obsolete. Consider disabling it altogether. I'm trying to set up Stunnel to server as SSL cache. Everything was smooth, and mostly it works as designed. Then I encountered errors ...
3
votes
5answers
5k views

How to install a single SSL certificate for www and non-www

I have purchased an SSL certificate and I should be able to configure IIS 7 to use that certificate for both https://domainname and https://www.domainname I have looked online but didn't find a ...
1
vote
5answers
8k views

Outlook SSL Error after New Certificate Installation

Recently replaced the SSL cert on our Exchange 2010 box with a new wildcard cert. Assigned services, reconfigured all URL's for external and internal access to be identical (previous cert was a SAN ...
6
votes
3answers
3k views

The site is using outdated security settings that may prevent future versions of Chrome from being able to safely access it

We're using an AWS ELB to do SSL termination and are having an issue where Chrome is displaying "https" in red with a strikethrough. It says "The site is using outdated security settings that may ...
3
votes
2answers
610 views

Disabling SNI for specific virtualhost on Apache

We have a web server with a couple of internet IPs. I have successfully set up SNI name based virtualhosts, it's working great. What I'd like to do though is have our main site NOT use SNI and use ...
2
votes
2answers
2k views

Setting up SSL virtual hosts in Apache

I'm trying to set up SSL, with SNI, in my apache and am getting the often-seen "ssl_error_rx_record_too_long" error in Firefox when accessing the site (https://test.me.dev.xxxx.net), from which I can ...
1
vote
2answers
7k views

CentOS PHP cURL NSS error 5938

Having a strange issue with cURL and PHP on a couple of CentOS boxes. Locally, I'm running CentOS 6.3. Remote is CentOS 5.9 Locally, the box receives a request, scp's a file to the remote server, ...
213
votes
12answers
71k views

Is it bad to redirect http to https?

I just installed an SSL Certificate on my server. It then set up a redirect for all traffic on my domain on Port 80 to redirect it to Port 443. In other words, all my http://example.com traffic is ...
32
votes
2answers
66k views

Apache ProxyPass with SSL

I want to proxy requests from an SSL site via a non-SSL site. My Apache httpd.conf looks like this: <VirtualHost 1.2.3.4:80> ServerName foo.com ProxyPass / https://bar.com/ ...
42
votes
8answers
77k views

On IIS, how do I patch the SSL 3.0 POODLE vulnerability (CVE­-2014­-3566)?

How do I patch CVE­-2014­-3566 on a Windows Server 2012 system running IIS? Is there a patch in Windows Update, or do I have to do a registry change to disable SSL 3.0?
18
votes
3answers
3k views

choosing the right SSL certificate

We're looking to purchase some SSL certificates to secure the login pages of ecommerce sites. It is not required to secure the actual payment process as this is protected by a third party with its own ...
47
votes
3answers
39k views

How to fix 'logjam' vulnerability in Apache (httpd)

Recently, a new vulnerability in Diffie-Hellman, informally referred to as 'logjam' has been published, for which this page has been put together suggesting how to counter the vulnerability: We ...
28
votes
5answers
9k views

Functional implications of differences in SSL and TLS

I know that TLS is essentially a newer version of SSL, and that it generally supports transitioning a connection from unsecured to secured (commonly through a STARTTLS command). What I don't ...
15
votes
7answers
5k views

For an intranet server would you buy a ssl cert or use a self signed cert?

We have a webservice that our application uses and the developers require https connections to the webservice. Since this is an internal webservice would you use a self signed cert?
14
votes
5answers
11k views

Redirect to SSL only if browser supports SNI

I have Apache 2.2 with mod_ssl and a bunch of sites in HTTPS on the same IP/port with VirtualHosting, so client must support SNI to connect to those virtual hosts. I would like to configure my server ...
20
votes
10answers
117k views

SSL Error - unable to read server certificate from file

I've been setting up SSL for my domain today, and have struck another issue - I was hoping someone could shed some light on.. I keep receiving the following error messages: [error] Init: Unable to ...
15
votes
5answers
25k views

How do I Install Intermediate Certificates (in AWS)?

I have installed private key (pem encoded) and public key certificate (pem encoded) on Amazon Load Balancer. However, when I check the SSL with site test tool, I get the following error: Error ...
9
votes
3answers
28k views

How to create certificate .cer file?

I would like to work with certificates and the third part authority send me values: -----BEGIN CERTIFICATE----- [...]Many letters and digits[...] -----END CERTIFICATE----- -----BEGIN RSA PRIVATE ...
10
votes
5answers
5k views

Remove “www” and redirect to “https” with nginx

I want to create a rule in nginx that does two things: Removes the "www." from the request URI Redirects to "https" if the request URI is "http" There are plenty of examples of how to do each of ...