Server Name Indication is an extension of Transport Layer Security which allows multiple secure web sites to be hosted at the same IP address.

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65
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5answers
39k 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 ...
8
votes
5answers
3k 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 ...
7
votes
3answers
332 views

Upgrade HTTP connection to SSL/TLS

I currently have a server which automatically redirects all HTTP requests to the equivalent HTTPS site. The problem is that is seems like some browsers do not accept the SSL certificate (StartSSL.com) ...
5
votes
1answer
6k views

“Server should be SSL-aware but has no certificate configured [Hint: SSLCertificateFile]” error

After recently upgrading Apache2 to version 2.2.31 I found a strange behaviour in SSL VirtualHost setup. A few of the website I'm hosting were showing the certificate for the default host even if the ...
5
votes
1answer
189 views

Does SNI represent a privacy concern for my website visitors?

Firstly, I'm sorry for my bad English. I'm still learning it. Here it goes: When I host a single website per IP address, I can use "pure" SSL (without SNI), and the key exchange occurs before the ...
4
votes
1answer
216 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 ...
4
votes
1answer
589 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, ...
3
votes
1answer
2k views

How can I detect if a server is using SNI for HTTPS?

I'm looking for a simple way to know if a server is using the Server Name Indication SSL extension for its HTTPS certificate on a website. A method that uses either a browser or Unix command line is ...
3
votes
3answers
2k views

Problems with multiple SSL on same IP, but only in select clients

I know there are tons of posts about multiple SSL on same IP, but I promise I'm not beating a dead horse. My question is very clear. First, a little background... Our organization has several ...
3
votes
3answers
7k views

Upgrading OpenSSL in CentOS 5.3

I want to use one IP to host many domains with individual SSL certificates (requires SNI). In CentOS 5.3, the latest version of OpenSSL I can find an RPM for is 0.9.8e, which does not support SNI. I ...
2
votes
2answers
711 views

nginx, multiple domains, ssl support for clients without SNI

I want to support SSL for clients which lack of SNI support (IE/FF/Safari on win XP, Android < 2.2, and others). The solution I picked was to have nginx listen on separate port for each ...
2
votes
3answers
873 views

What percentage of web users are running on browsers/OSes that support SNI? [closed]

Has anyone done any analysis (or know where I can find some!) on what proportion of internet users are using a browser/operating system combination that support SNI (Server Name Indication) SSL/TLS ...
2
votes
2answers
3k views

Jenkins reports reverse proxy setup incorrect with Apache using virtual hosts with SNI

I'm setting up a Jenkins server, to run under Tomcat behind Apache. I'm using virtual hosts with SSL using SNI so I can access it at https://jenkins.example.com, and serve something else on, say, ...
2
votes
1answer
262 views

Resolve a many-SSL-to-one IP for clients browsers that doesn't support SNI

Whoa, acronyms :) So according to this question you can have multiple SSL subdomains on one IP address as long as your server supports TLS (which Apache 2.2x does). Another answer to that question ...
2
votes
2answers
2k views

Why does apache httpd tell me that my name-based virtualhosts only works with SNI enabled browers (RFC 4366)

Why does apache give me this error message in my logs? Is it a false positive? [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) I ...
2
votes
1answer
100 views

Separate SSL certificate selection from virtual host configuration in apache

Currently, my apache configuration includes one SSL certificate (with all domains listed as Alternative Subject Names). I furthermore have one virtual host configuration per domain that serves both ...
2
votes
2answers
593 views

SNI windows xp workaround

Is there some workaround so I can get SNI working for IE on windows xp ?
2
votes
2answers
583 views

Windows Vista Wrong Certificate With SNI

I'm setting up SNI on an apache server and I thought things were going well. I have two URLs from different domains that point at the same site. I have one virtual host setup for each with the ...
2
votes
1answer
233 views

What happens when a browser does not support SNI

A seemingly simple question, but valid nonetheless. What exactly happens when a browser which does not support SNI attempts to visit a site configured to force SSL via SNI. Thanks
2
votes
1answer
868 views

How to define which SSL certificate nginx sends first with SNI?

I use nginx 1.2.7 with OpenSSL 0.9.8o on Debian Squeeze for about 30 domains. On two of them I enabled SSL which works fine on both. The SSL config is use for both domains: listen 443 ssl; ...
2
votes
2answers
390 views

Have Nginx reject unknown server names over HTTPS

I have an Nginx instance using SNI to serve multiple HTTPS domains from a single IP. The only glitch with the setup is that Nginx responds with the first (acting as default) domain whenever a URL for ...
2
votes
1answer
1k views

How to configure SNI so as to have benifits of SNI

How can i configure SNI to get the benifts ...........I am using openssl 1.0.0 beta5 and apache 2.2.14. Can anyone tell me the complete procedure . I am configuring virtual host in ssl.conf files and ...
2
votes
1answer
66 views

What does this notice mean “SNI: extension not received from the client”, in stunnel log

I am working on multiple domain certificates using stunnel. I have two domains test.int and test1.int and given multiple certificates to each domain and one default certificate. I used sni option of ...
2
votes
1answer
131 views

Using SNI on Windows Server 2012 R2 not working

I am trying to get both my sites running with their seperate certificates on a Windows Server 2012 R2. Should this not be possible? On the last added site www.c1get.net I get the certificate from ...
2
votes
0answers
85 views

SNI and wildcard SSL certificates on the same server with IIS

I'd like to host a website that should listen to subdomains (e.g. sub.domain.com) together with multiple websites that live just under a second-level domain (e.g. domain2.com, domain3.com) with IIS ...
2
votes
0answers
145 views

Debugging incorrect certificate with SNI for some clients

I have a number of domains with SSL certificates served by Haproxy (using Haproxy 1.5's support for SSL). For the most part the correct certificates are being served, but a particular user is ...
1
vote
2answers
2k views

Can't turn off SNI on apache

When I go to: http://web-sniffer.net/ and check the headers of my site (https://www.example.org), I get a status code 200 But when I use the radio button HTTP/1.0 (without Host header), I get a ...
1
vote
1answer
1k views

Is it possible to get a wildcard cert and use SNI?

I'd like to make setting up new subdomains easy (at least for the development side) and getting one wildcard cert, setting up a wildcard dns (which is done and works great) and setting up SNI (Server ...
1
vote
1answer
136 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 ...
1
vote
3answers
1k views

Apache SNI namevhosts always route to first VirtualHost entry

Update So for some strange reason, the problem seems to have resolved itself. Perhaps it's some sort of strange caching issue or something (though I have apache2ctl stop/start/restart and sudo ...
1
vote
1answer
2k views

Setting up default SSL site on IIS8

I have setup few websites on IIS8 all using the same wildcard SSL certificate. Some of the sites need to be accessible to older browsers and operating systems, therefore I cannot use the "Require ...
1
vote
1answer
1k views

Set default TLS SNI vhost for Apache 2.2 on CentOS 6

I have a CentOS 6 server with Apache (httpd-2.2.15-15.el6.centos.x86_64). Now I configured TLS SNI using OpenSSL and that was pretty easy. Now I have two TLS vhosts on the same ip and I want to ...
1
vote
2answers
33 views

Correct configuration for SSL over 3 domains on same IP in nginx

I have been working on this for several hours now, to no fruition. Right now I have three domains, for example domain1.com, domain2.org, and domain3.net. These domains are all using the same IP ...
1
vote
1answer
96 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 ...
1
vote
1answer
418 views

HTTPS vhost multiplexing with upstream client certificate auth with nginx

Let's say I have two Apache servers (one per vhost) behind an nginx server. The problem is that I'd like Apache to do the authentication of client certificates. Would it be possible for nginx to do ...
1
vote
1answer
911 views

Why is Firefox on XP reporting “Connection is Untrusted”

To those of you familiar with the RFC 4366 TLS "Server Name Indication" (SNI) extension, which allows multiple SSL certificates on the same IP address, here’s the scenario: URL: ...
1
vote
1answer
433 views

Setup Apache 2.2 With SNI Under Ubuntu 8.04

I am trying to setup SNI on a server running Ubuntu 8.04 with openssl 0.9.8g and apache 2.2.8. I know that I need either mod_gnutils or openssl 0.9.8j (I think) to support SNI. Is it possible to do ...
1
vote
0answers
97 views

SNI error over SSL on some Android devices

I am getting an SNI error: Hostname X provided via SNI, but no hostname provided in HTTP request On some Android phones when making SSL requests to my domain. This is despite ensuring that the Host ...
1
vote
0answers
71 views

Apache2 conditional section based on port

I don't know much about if statements in apache configuration, and I'm wondering if I can have a section of the configuration applied only if the request is received on a certain port. In short, this ...
1
vote
1answer
1k views

How to configure Apache with gnutls [closed]

I'm wanting SNI on my CentOS 5.5 dev server and since it looks like I'm out of luck with the current repo versions of openssl and apache, before I go compiling custom RPMs I thought I'd see if I could ...
0
votes
1answer
162 views

Setup SSL for only a Single website on Linux server with Multiple vhosts

Without configuring apache to support SNI, can I purchase a SSL cert and use on a Centos Linux server that has 2 name-based Vhost? I'm only interested in securing ONE of the two domains. Could this be ...
0
votes
3answers
71 views

Strict SNI matching for Apache

I have multiple SSL vhosts and non-SSL vhosts served from a single server. If one of the non-ssl vhosts is accessed using "https", the first SSL directive is used. Is there some setting to make it so ...
0
votes
1answer
57 views

Understanding XP users accessing a UCC certificate on IIS8

I have a single IIS website which hosts 3 different websites all using the same UCC SSL certificate. (The code of my site examines the host header itself to decide which variation of the site to ...
0
votes
1answer
316 views

nginx and SNI: is it possible to automatically resolve SSL certificate by domain name

I need to setup a server that will server same content over SSL using different domain names. The problem is that I need an ability to add new domain names as easily as possible. Assuming that all ...
0
votes
2answers
66 views

Apache SNI, 2 domains, 2 certs, resolves to same document root

I am currently following the following guide: https://www.digitalocean.com/community/articles/how-to-set-up-multiple-ssl-certificates-on-one-ip-with-apache-on-ubuntu-12-04 Setup so far has been ...
0
votes
2answers
427 views

using nginx with SNI

By now I've not used SNI with nginx yet. But as IP address pools are quite filled and commercial XP support is about to cease (finally) I'm thinking about converting a few sites to SNI. I'm aware of ...
0
votes
0answers
30 views

Apache mod_proxy with HTTPS without key material (using SNI)

I would like to have an Apache 2.4 proxy which redirects port 80 and 443 requests to different machines in the local network, depending on the host name. I used mod_proxy and it works fine with port ...
0
votes
0answers
21 views

Configuring uwsgi and SNI with main domain and one subdomain

SNI is quite underdocumented feature of uwsgi Can anyone provider pointers how uwsgi config https directive sni directives should be set with domains example.com, subdomain.example.com when both ...
0
votes
0answers
11 views

Sftp virtualhosting based on the SNI server name?

I am thinking on the possibility of the virtualhosting of sftp based on the server name, which was given by the client with SNI. Is it possible? Does any similar already exist there?
0
votes
0answers
23 views

Multiple SSL sites on one IP with SNI - non-matching hosts go to first site? [duplicate]

I've got a server hosting a handful of websites with ISPConfig, and a few require SSL - I've set it up with SNI and it works, but if any of the other sites on the server without SSL are accessed via ...