Merge branch 'pages-refactor-ssl-documentation' into 'master'

Docs: Pages - refactor "Custom domain / SSL" documentation

Closes #47585, #60612, #44606, and #63753

See merge request gitlab-org/gitlab-ce!30363
This commit is contained in:
Achilleas Pipinellis 2019-07-15 08:02:34 +00:00
commit 39544c7383
29 changed files with 456 additions and 338 deletions

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@ -14,7 +14,7 @@
= _("Require users to prove ownership of custom domains")
.form-text.text-muted
= _("Domain verification is an essential security measure for public GitLab sites. Users are required to demonstrate they control a domain before it is enabled")
= link_to icon('question-circle'), help_page_path('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= link_to icon('question-circle'), help_page_path('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: '4-verify-the-domains-ownership')
%h5
= _("Configure Let's Encrypt")
%p

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@ -8,6 +8,6 @@
Domain: #{link_to @domain.domain, project_pages_domain_url(@project, @domain)}
%p
If this domain has been disabled in error, please follow
= link_to 'these instructions', help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= link_to 'these instructions', help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: '4-verify-the-domains-ownership')
to verify and re-enable your domain.
= render 'removal_notification'

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@ -7,7 +7,7 @@ Domain: #{@domain.domain} (#{project_pages_domain_url(@project, @domain)})
If this domain has been disabled in error, please follow these instructions
to verify and re-enable your domain:
= help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
If you no longer wish to use this domain with GitLab Pages, please remove it
from your GitLab project and delete any related DNS records.

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@ -7,5 +7,5 @@
Domain: #{link_to @domain.domain, project_pages_domain_url(@project, @domain)}
%p
Please visit
= link_to 'these instructions', help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= link_to 'these instructions', help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.

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@ -5,5 +5,5 @@ Project: #{@project.human_name} (#{project_url(@project)})
Domain: #{@domain.domain} (#{project_pages_domain_url(@project, @domain)})
Please visit
= help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.

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@ -10,6 +10,6 @@
Until then, you can view your content at #{link_to @domain.url, @domain.url}
%p
Please visit
= link_to 'these instructions', help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= link_to 'these instructions', help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.
= render 'removal_notification'

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@ -7,7 +7,7 @@ Unless you take action, it will be disabled on *#{@domain.enabled_until.strftime
Until then, you can view your content at #{@domain.url}
Please visit
= help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.
If you no longer wish to use this domain with GitLab Pages, please remove it

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@ -9,5 +9,5 @@
content at #{link_to @domain.url, @domain.url}
%p
Please visit
= link_to 'these instructions', help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= link_to 'these instructions', help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.

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@ -6,5 +6,5 @@ Domain: #{@domain.domain} (#{project_pages_domain_url(@project, @domain)})
No action is required on your part. You can view your content at #{@domain.url}
Please visit
= help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
= help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: 'steps')
for more information about custom domain verification.

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@ -1,4 +1,4 @@
- docs_link_url = help_page_path("user/project/pages/getting_started_part_three.md", anchor: "adding-certificates-to-your-project")
- docs_link_url = help_page_path("user/project/pages/custom_domains_ssl_tls_certification/index.md", anchor: "adding-an-ssltls-certificate-to-pages")
- docs_link_start = "<a href=\"%{docs_link_url}\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"text-nowrap\">".html_safe % { docs_link_url: docs_link_url }
- docs_link_end = "</a>".html_safe

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@ -53,7 +53,7 @@
.input-group-append
= clipboard_button(target: '#domain_verification', class: 'btn-default d-none d-sm-block')
%p.form-text.text-muted
- link_to_help = link_to(_('verify ownership'), help_page_path('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record'))
- link_to_help = link_to(_('verify ownership'), help_page_path('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: '4-verify-the-domains-ownership'))
= _("To %{link_to_help} of your domain, add the above key to a TXT record within to your DNS configuration.").html_safe % { link_to_help: link_to_help }
%tr

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@ -256,7 +256,7 @@ world. Custom domains and TLS are supported.
### Custom domain verification
To prevent malicious users from hijacking domains that don't belong to them,
GitLab supports [custom domain verification](../../user/project/pages/getting_started_part_three.md#dns-txt-record).
GitLab supports [custom domain verification](../../user/project/pages/custom_domains_ssl_tls_certification/index.md#steps).
When adding a custom domain, users will be required to prove they own it by
adding a GitLab-controlled verification code to the DNS records for that domain.

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@ -1,5 +1,5 @@
---
redirect_to: '../user/project/pages/getting_started_part_three.md'
redirect_to: '../user/project/pages/custom_domains_ssl_tls_certification/index.md'
---
This document was moved to [another location](../user/project/pages/getting_started_part_three.md).
This document was moved to [another location](../user/project/pages/custom_domains_ssl_tls_certification/index.md).

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@ -834,7 +834,7 @@ including (but not restricted to):
- [CI/CD variables](../ci/variables/README.md)
- [Kubernetes / GCP integration](../user/project/clusters/index.md)
- [Custom Pages domains](../user/project/pages/getting_started_part_three.md)
- [Custom Pages domains](../user/project/pages/custom_domains_ssl_tls_certification/index.md)
- [Project error tracking](../user/project/operations/error_tracking.md)
- [Runner authentication](../ci/runners/README.md)
- [Project mirroring](../workflow/repository_mirroring.md)

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@ -0,0 +1,95 @@
---
type: concepts
---
# DNS records overview
_Read this document for a brief overview of DNS records in the scope
of GitLab Pages, for beginners in web development._
A Domain Name System (DNS) web service routes visitors to websites
by translating domain names (such as `www.example.com`) into the
numeric IP addresses (such as `192.0.2.1`) that computers use to
connect to each other.
A DNS record is created to point a (sub)domain to a certain location,
which can be an IP address or another domain. In case you want to use
GitLab Pages with your own (sub)domain, you need to access your domain's
registrar control panel to add a DNS record pointing it back to your
GitLab Pages site.
Note that **how to** add DNS records depends on which server your domain
is hosted on. Every control panel has its own place to do it. If you are
not an admin of your domain, and don't have access to your registrar,
you'll need to ask for the technical support of your hosting service
to do it for you.
To help you out, we've gathered some instructions on how to do that
for the most popular hosting services:
- [Amazon](http://docs.aws.amazon.com/gettingstarted/latest/swh/getting-started-configure-route53.html)
- [Bluehost](https://my.bluehost.com/cgi/help/559)
- [CloudFlare](https://support.cloudflare.com/hc/en-us/articles/200169096-How-do-I-add-A-records-)
- [cPanel](https://documentation.cpanel.net/display/ALD/Edit+DNS+Zone)
- [DreamHost](https://help.dreamhost.com/hc/en-us/articles/215414867-How-do-I-add-custom-DNS-records-)
- [Go Daddy](https://www.godaddy.com/help/add-an-a-record-19238)
- [Hostgator](http://support.hostgator.com/articles/changing-dns-records)
- [Inmotion hosting](https://my.bluehost.com/cgi/help/559)
- [Media Temple](https://mediatemple.net/community/products/dv/204403794/how-can-i-change-the-dns-records-for-my-domain)
- [Microsoft](https://msdn.microsoft.com/en-us/library/bb727018.aspx)
If your hosting service is not listed above, you can just try to
search the web for `how to add dns record on <my hosting service>`.
## `A` record
A DNS A record maps a host to an IPv4 IP address.
It points a root domain as `example.com` to the host's IP address as
`192.192.192.192`.
Example:
- `example.com` => `A` => `192.192.192.192`
## CNAME record
CNAME records define an alias for canonical name for your server (one defined
by an A record). It points a subdomain to another domain.
Example:
- `www` => `CNAME` => `example.com`
This way, visitors visiting `www.example.com` will be redirected to
`example.com`.
## MX record
MX records are used to define the mail exchanges that are used for the domain.
This helps email messages arrive at your mail server correctly.
Example:
- `MX` => `mail.example.com`
Then you can register emails for `users@mail.example.com`.
## TXT record
A `TXT` record can associate arbitrary text with a host or other name. A common
use is for site verification.
Example:
- `example.com`=> TXT => `"google-site-verification=6P08Ow5E-8Q0m6vQ7FMAqAYIDprkVV8fUf_7hZ4Qvc8"`
This way, you can verify the ownership for that domain name.
## All combined
You can have one DNS record or more than one combined:
- `example.com` => `A` => `192.192.192.192`
- `www` => `CNAME` => `example.com`
- `MX` => `mail.example.com`
- `example.com`=> TXT => `"google-site-verification=6P08Ow5E-8Q0m6vQ7FMAqAYIDprkVV8fUf_7hZ4Qvc8"`

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@ -0,0 +1,257 @@
---
last_updated: 2019-07-04
type: reference, howto
redirect_from: 'https://docs.gitlab.com/ee/user/project/pages/getting_started_part_three.html'
---
# Custom domains and SSL/TLS Certificates
Setting up GitLab Pages with custom domains, and adding SSL/TLS certificates to them, are optional features of GitLab Pages.
To use one or more custom domain names with your Pages site, you can:
- Add a [custom **root domain** or a **subdomain**](#set-up-pages-with-a-custom-domain).
- Add [SSL/TLS certification](#adding-an-ssltls-certificate-to-pages).
## Set up Pages with a custom domain
To set up Pages with a custom domain name, read the requirements
and steps below.
### Requirements
- A GitLab Pages website up and running, served under the default Pages domain
(`*.gitlab.io`, for GitLab.com).
- A custom domain name `example.com` or subdomain `subdomain.example.com`.
- Access to your domain's server control panel to set up DNS records:
- A DNS A or CNAME record poiting your domain to GitLab Pages server.
- A DNS TXT record to verify your domain's ownership.
### Steps
Follow the steps below to add your custom domain to Pages. See also
this document for an [overview on DNS records](dns_concepts.md).
#### 1. Add a custom domain to Pages
Navigate to your project's **Setting > Pages** and click **+ New domain**
to add your custom domain to GitLab Pages. You can choose whether to:
- Add an [SSL/TLS certificate](#adding-an-ssltls-certificate-to-pages).
- Leave it blank (it can be added later).
Click **Create New Domain**.
![Add new domain](img/add_certificate_to_pages.png)
#### 2. Get the verification code
Once you have added a new domain to Pages, the verification code will be prompted to you. Copy the values from GitLab and paste them in your domain's control panel as a TXT record on the next step.
![Get the verification code](img/get_domain_verification_code_v12_0.png)
#### 3. Set up DNS records for Pages
Read this document for an [overview of DNS records for Pages](dns_concepts.md).
If you're familiar with the subject, follow the instructions below
according to the type of domain you want to use with your Pages site:
- [For root domains](#for-root-domains), `example.com`.
- [For subdomains](#for-subdomains), `subdomain.example.com`.
- [For both](#for-both-root-and-subdomains).
##### For root domains
Root domains (`example.com`) require:
- A [DNS A record](dns_concepts.md#a-record) pointing your domain to the Pages server.
- A [TXT record](dns_concepts.md#txt-record) to verify your domain's ownership.
| From | DNS Record | To |
| ---- | ---------- | -- |
| example.com | A | 35.185.44.232 |
| _gitlab-pages-verification-code.example.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
For projects on GitLab.com, this IP is `35.185.44.232`.
For projects living in other GitLab instances (CE or EE), please contact
your sysadmin asking for this information (which IP address is Pages
server running on your instance).
![DNS A record pointing to GitLab.com Pages server](img/dns_add_new_a_record_example_updated_2018.png)
CAUTION: **Caution:**
Note that if you use your root domain for your GitLab Pages website
**only**, and if your domain registrar supports this feature, you can
add a DNS apex `CNAME` record instead of an `A` record. The main
advantage of doing so is that when GitLab Pages IP on GitLab.com
changes for whatever reason, you don't need to update your `A` record.
There may be a few exceptions, but **this method is not recommended**
as it most likely won't work if you set an [`MX` record](dns_concepts.md#mx-record) for your root domain.
##### For subdomains
Subdomains (`subdomain.example.com`) require:
- A DNS [CNAME record](dns_concepts.md#cname-record) record pointing your subdomain to the Pages server.
- A DNS [TXT record](dns_concepts.md#txt-record) to verify your domain's ownership.
| From | DNS Record | To |
| ---- | ---------- | -- |
| subdomain.example.com | CNAME | namespace.gitlab.io |
| _gitlab-pages-verification-code.subdomain.example.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
Note that, whether it's a user or a project website, the `CNAME`
should point to your Pages domain (`namespace.gitlab.io`),
without any `/project-name`.
![DNS CNAME record pointing to GitLab.com project](img/dns_cname_record_example.png)
##### For both root and subdomains
There are a few cases where you need point both subdomain and root
domain to the same website, for instance, `example.com` and `www.example.com`.
They require:
- A DNS A record for the domain.
- A DNS CNAME record for the subdomain.
- A DNS TXT record for each.
| From | DNS Record | To |
| ---- | ---------- | -- |
| example.com | A | 35.185.44.232 |
| _gitlab-pages-verification-code.example.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
|---+---|
| www.example.com | CNAME | namespace.gitlab.io |
| _gitlab-pages-verification-code.www.example.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
If you're using CloudFlare, check
[Redirecting `www.domain.com` to `domain.com` with Cloudflare](#redirecting-wwwdomaincom-to-domaincom-with-cloudflare).
> **Notes**:
>
> - **Do not** use a CNAME record if you want to point your
`domain.com` to your GitLab Pages site. Use an `A` record instead.
> - **Do not** add any special chars after the default Pages
domain. E.g., don't point `subdomain.domain.com` to
or `namespace.gitlab.io/`. Some domain hosting providers may request a trailling dot (`namespace.gitlab.io.`), though.
> - GitLab Pages IP on GitLab.com [was changed](https://about.gitlab.com/2017/03/06/we-are-changing-the-ip-of-gitlab-pages-on-gitlab-com/) in 2017.
> - GitLab Pages IP on GitLab.com [has changed](https://about.gitlab.com/2018/07/19/gcp-move-update/#gitlab-pages-and-custom-domains)
from `52.167.214.135` to `35.185.44.232` in 2018.
#### 4. Verify the domain's ownership
Once you have added all the DNS records:
1. Go back at your project's **Settings > Pages**.
1. Locate your domain name and click **Details**.
1. Click the **Retry verification** button to activate your new domain.
![Verify your domain](img/retry_domain_verification_v12_0.png)
As soon as your domain becomes active, your website will be available
through your domain name.
CAUTION: **Caution:**
Considering GitLab instances with domain verification enabled,
if the domain cannot be verified for 7 days, it will be removed
from the GitLab project.
> **Notes:**
>
> - Domain verification is **required for GitLab.com users**;
for GitLab self-managed instances, your GitLab administrator has the option
to [disabled custom domain verification](../../../../administration/pages/index.md#custom-domain-verification).
> - [DNS propagation may take some time (up to 24h)](http://www.inmotionhosting.com/support/domain-names/dns-nameserver-changes/domain-names-dns-changes),
although it's usually a matter of minutes to complete. Until it does, verification
will fail and attempts to visit your domain will respond with a 404.
> - Once your domain has been verified, leave the verification record
in place: your domain will be periodically reverified, and may be
disabled if the record is removed.
### Adding more domain aliases
You can add more than one alias (custom domains and subdomains) to the same project.
An alias can be understood as having many doors leading to the same room.
All the aliases you've set to your site will be listed on **Setting > Pages**.
From that page, you can view, add, and remove them.
### Redirecting `www.domain.com` to `domain.com` with Cloudflare
If you use Cloudflare, you can redirect `www` to `domain.com` without adding both
`www.domain.com` and `domain.com` to GitLab. This happens due to a [Cloudflare feature that creates
a 301 redirect as a "page rule"](https://gitlab.com/gitlab-org/gitlab-ce/issues/48848#note_87314849) for redirecting `www.domain.com` to `domain.com`. In this case,
you can use the following setup:
1. In Cloudflare, create a DNS `A` record pointing `domain.com` to `35.185.44.232`.
1. In GitLab, add the domain to GitLab Pages.
1. In Cloudflare, create a DNS `TXT` record to verify your domain.
1. In Cloudflare, create a DNS `CNAME` record pointing `www` to `domain.com`.
## Adding an SSL/TLS certificate to Pages
Read this document for an [overview on SSL/TLS certification](ssl_tls_concepts.md).
### Requirements
- A GitLab Pages website up and running accessible via a custom domain.
- **A PEM certificate**: it is the certificate generated by the CA,
which needs to be added to the field **Certificate (PEM)**.
- **An [intermediate certificate](https://en.wikipedia.org/wiki/Intermediate_certificate_authority)**: (aka "root certificate"), it is
the part of the encryption keychain that identifies the CA.
Usually it's combined with the PEM certificate, but there are
some cases in which you need to add them manually.
[CloudFlare certs](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/)
are one of these cases.
- **A private key**, it's an encrypted key which validates
your PEM against your domain.
### Steps
- To add the certificate at the time you add a new domain, go to your
project's **Settings > Pages > New Domain**, add the domain name and the certificate.
- To add the certificate to a domain previously added, go to your
project's **Settings > Pages**, locate your domain name, click **Details** and **Edit** to add the certificate.
![Pages project - adding certificates](img/add_certificate_to_pages.png)
1. Add the PEM certificate to its corresponding field.
1. If your certificate is missing its intermediate, copy
and paste the root certificate (usually available from your CA website)
and paste it in the [same field as your PEM certificate](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/),
just jumping a line between them.
1. Copy your private key and paste it in the last field.
NOTE: **Note:**
**Do not** open certificates or encryption keys in
regular text editors. Always use code editors (such as
Sublime Text, Atom, Dreamweaver, Brackets, etc).
## Force HTTPS for GitLab Pages websites
> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/28857) in GitLab 10.7.
To make your website's visitors even more secure, you can choose to
force HTTPS for GitLab Pages. By doing so, all attempts to visit your
website via HTTP will be automatically redirected to HTTPS via 301.
It works with both GitLab's default domain and with your custom
domain (as long as you've set a valid certificate for it).
To enable this setting:
1. Navigate to your project's **Settings > Pages**.
1. Tick the checkbox **Force HTTPS (requires valid certificates)**.
<!-- ## Troubleshooting
Include any troubleshooting steps that you can foresee. If you know beforehand what issues
one might have when setting this up, or when something is changed, or on upgrading, it's
important to describe those, too. Think of things that may go wrong and include them here.
This is important to minimize requests for support, and to avoid doc comments with
questions that you know someone might ask.
Each scenario can be a third-level heading, e.g. `### Getting error message X`.
If you have none to add when creating a doc, leave this section in place
but commented out to help encourage others to add to it in the future. -->

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@ -0,0 +1,75 @@
---
type: concepts
---
# SSL/TLS Certificates
_Read this document for a brief overview of SSL/TLS certificates in
the scope of GitLab Pages, for beginners in web development._
Every GitLab Pages project on GitLab.com will be available under
HTTPS for the default Pages domain (`*.gitlab.io`). Once you set
up your Pages project with your custom (sub)domain, if you want
it secured by HTTPS, you will have to issue a certificate for that
(sub)domain and install it on your project.
NOTE: **Note:**
Certificates are NOT required to add to your custom
(sub)domain on your GitLab Pages project, though they are
highly recommendable.
Let's start with an introduction to the importance of HTTPS.
## Why should I care about HTTPS?
This might be your first question. If our sites are hosted by GitLab Pages,
they are static, hence we are not dealing with server-side scripts
nor credit card transactions, then why do we need secure connections?
Back in the 1990s, where HTTPS came out, [SSL](https://en.wikipedia.org/wiki/Transport_Layer_Security#SSL_1.0.2C_2.0_and_3.0) was considered a "special"
security measure, necessary just for big companies, like banks and shoppings sites
with financial transactions.
Now we have a different picture. [According to Josh Aas](https://letsencrypt.org/2015/10/29/phishing-and-malware.html), Executive Director at [ISRG](https://en.wikipedia.org/wiki/Internet_Security_Research_Group):
> _Weve since come to realize that HTTPS is important for almost all websites. Its important for any website that allows people to log in with a password, any website that [tracks its users](https://www.washingtonpost.com/news/the-switch/wp/2013/12/10/nsa-uses-google-cookies-to-pinpoint-targets-for-hacking/) in any way, any website that [doesnt want its content altered](http://arstechnica.com/tech-policy/2014/09/why-comcasts-javascript-ad-injections-threaten-security-net-neutrality/), and for any site that offers content people might not want others to know they are consuming. Weve also learned that any site not secured by HTTPS [can be used to attack other sites](https://krebsonsecurity.com/2015/04/dont-be-fodder-for-chinas-great-cannon/)._
Therefore, the reason why certificates are so important is that they encrypt
the connection between the **client** (you, me, your visitors)
and the **server** (where you site lives), through a keychain of
authentications and validations.
How about taking Josh's advice and protecting our sites too? We will be
well supported, and we'll contribute to a safer internet.
## Organizations supporting HTTPS
There is a huge movement in favor of securing all the web. W3C fully
[supports the cause](https://w3ctag.github.io/web-https/) and explains very well
the reasons for that. Richard Barnes, a writer for Mozilla Security Blog,
suggested that [Firefox would deprecate HTTP](https://blog.mozilla.org/security/2015/04/30/deprecating-non-secure-http/),
and would no longer accept unsecured connections. Recently, Mozilla published a
[communication](https://blog.mozilla.org/security/2016/03/29/march-2016-ca-communication/)
reiterating the importance of HTTPS.
## Issuing Certificates
GitLab Pages accepts certificates provided in the [PEM](https://support.quovadisglobal.com/kb/a37/what-is-pem-format.aspx) format, issued by
[Certificate Authorities (CAs)](https://en.wikipedia.org/wiki/Certificate_authority) or as
[self-signed certificates](https://en.wikipedia.org/wiki/Self-signed_certificate). Note that [self-signed certificates are typically not used](https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/self-signed-certificates-secure-so-why-ban/)
for public websites for security reasons and to ensure that browsers trust your site's certificate.
There are various kinds of certificates, each one
with a certain security level. A static personal website will
not require the same security level as an online banking web app,
for instance.
There are some certificate authorities that
offer free certificates, aiming to make the internet more secure
to everyone. The most popular is [Let's Encrypt](https://letsencrypt.org/),
which issues certificates trusted by most of browsers, it's open
source, and free to use. See our tutorial on [how to secure your GitLab Pages website with Let's Encrypt](../lets_encrypt_for_gitlab_pages.md).
Similarly popular are [certificates issued by CloudFlare](https://www.cloudflare.com/ssl/),
which also offers a [free CDN service](https://blog.cloudflare.com/cloudflares-free-cdn-and-you/).
Their certs are valid up to 15 years. See the tutorial on
[how to add a CloudFlare Certificate to your GitLab Pages website](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/).

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@ -1,314 +1 @@
---
last_updated: 2019-06-25
type: concepts, reference, howto
---
# GitLab Pages custom domains and SSL/TLS Certificates
Setting up GitLab Pages with custom domains, and adding SSL/TLS certificates to them, are optional features of GitLab Pages.
These steps assume you've already [set your site up](getting_started_part_two.md) and it's served under the default Pages domain `namespace.gitlab.io`, or `namespace.gitlab.io/project-name`.
## Adding your custom domain to GitLab Pages
To use one or more custom domain with your Pages site, there are two things
you should consider first, which we'll cover in this guide:
1. Either if you're adding a **root domain** or a **subdomain**, for which
you'll need to set up [DNS records](#dns-records)
1. Whether you want to add an [SSL/TLS certificate](#ssltls-certificates) or not
To finish the association, you need to [add your domain to your project's Pages settings](#add-your-custom-domain-to-gitlab-pages-settings).
Let's start from the beginning with [DNS records](#dns-records).
If you already know how they work and want to skip the introduction to DNS,
you may be interested in skipping it until the [TL;DR](#tldr) section below.
### DNS Records
A Domain Name System (DNS) web service routes visitors to websites
by translating domain names (such as `www.example.com`) into the
numeric IP addresses (such as `192.0.2.1`) that computers use to
connect to each other.
A DNS record is created to point a (sub)domain to a certain location,
which can be an IP address or another domain. In case you want to use
GitLab Pages with your own (sub)domain, you need to access your domain's
registrar control panel to add a DNS record pointing it back to your
GitLab Pages site.
Note that **how to** add DNS records depends on which server your domain
is hosted on. Every control panel has its own place to do it. If you are
not an admin of your domain, and don't have access to your registrar,
you'll need to ask for the technical support of your hosting service
to do it for you.
To help you out, we've gathered some instructions on how to do that
for the most popular hosting services:
- [Amazon](http://docs.aws.amazon.com/gettingstarted/latest/swh/getting-started-configure-route53.html)
- [Bluehost](https://my.bluehost.com/cgi/help/559)
- [CloudFlare](https://support.cloudflare.com/hc/en-us/articles/200169096-How-do-I-add-A-records-)
- [cPanel](https://documentation.cpanel.net/display/ALD/Edit+DNS+Zone)
- [DreamHost](https://help.dreamhost.com/hc/en-us/articles/215414867-How-do-I-add-custom-DNS-records-)
- [Go Daddy](https://www.godaddy.com/help/add-an-a-record-19238)
- [Hostgator](http://support.hostgator.com/articles/changing-dns-records)
- [Inmotion hosting](https://my.bluehost.com/cgi/help/559)
- [Media Temple](https://mediatemple.net/community/products/dv/204403794/how-can-i-change-the-dns-records-for-my-domain)
- [Microsoft](https://msdn.microsoft.com/en-us/library/bb727018.aspx)
If your hosting service is not listed above, you can just try to
search the web for `how to add dns record on <my hosting service>`.
#### DNS A record
In case you want to point a root domain (`example.com`) to your
GitLab Pages site, deployed to `namespace.gitlab.io`, you need to
log into your domain's admin control panel and add a DNS `A` record
pointing your domain to Pages' server IP address. For projects on
GitLab.com, this IP is `35.185.44.232`. For projects living in
other GitLab instances (CE or EE), please contact your sysadmin
asking for this information (which IP address is Pages server
running on your instance).
**Practical Example:**
![DNS A record pointing to GitLab.com Pages server](img/dns_add_new_a_record_example_updated_2018.png)
CAUTION: **Caution:**
Note that if you use your root domain for your GitLab Pages website
**only**, and if your domain registrar supports this feature, you can
add a DNS apex `CNAME` record instead of an `A` record. The main
advantage of doing so is that when GitLab Pages IP on GitLab.com
changes for whatever reason, you don't need to update your `A` record.
There may be a few exceptions, but **this method is not recommended**
as it most likely won't work if you set an `MX` record for your root domain.
#### DNS CNAME record
In case you want to point a subdomain (`hello-world.example.com`)
to your GitLab Pages site initially deployed to `namespace.gitlab.io`,
you need to log into your domain's admin control panel and add a DNS
`CNAME` record pointing your subdomain to your website URL
(`namespace.gitlab.io`) address.
Note that, whether it's a user or a project website, the `CNAME`
should point to your Pages domain (`namespace.gitlab.io`),
without any `/project-name`.
**Practical Example:**
![DNS CNAME record pointing to GitLab.com project](img/dns_cname_record_example.png)
#### DNS TXT record
Unless your GitLab administrator has [disabled custom domain verification](../../../administration/pages/index.md#custom-domain-verification),
you'll have to prove that you own the domain by creating a `TXT` record
containing a verification code. The code will be displayed after you
[add your custom domain to GitLab Pages settings](#add-your-custom-domain-to-gitlab-pages-settings).
If using a [DNS A record](#dns-a-record), you can place the TXT record directly
under the domain. If using a [DNS CNAME record](#dns-cname-record), the two record types won't
co-exist, so you need to place the TXT record in a special subdomain of its own.
If the domain cannot be verified for 7 days, it will be removed from the GitLab project.
#### TL;DR
For root domains (`domain.com`), set a DNS `A` record and verify your
domain's ownership with a TXT record:
| From | DNS Record | To |
| ---- | ---------- | -- |
| domain.com | A | 35.185.44.232 |
| domain.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
For subdomains (`subdomain.domain.com`), set a DNS `CNAME` record and
verify your domain's ownership with a TXT record:
| From | DNS Record | To |
| ---- | ---------- | -- |
| subdomain.domain.com | CNAME | namespace.gitlab.io |
| _gitlab-pages-verification-code.subdomain.domain.com | TXT | gitlab-pages-verification-code=00112233445566778899aabbccddeeff |
> **Notes**:
>
> - **Do not** use a CNAME record if you want to point your
`domain.com` to your GitLab Pages site. Use an `A` record instead.
> - **Do not** add any special chars after the default Pages
domain. E.g., **do not** point your `subdomain.domain.com` to
`namespace.gitlab.io.` or `namespace.gitlab.io/`.
> - GitLab Pages IP on GitLab.com [was changed](https://about.gitlab.com/2017/03/06/we-are-changing-the-ip-of-gitlab-pages-on-gitlab-com/) in 2017.
> - GitLab Pages IP on GitLab.com [has been changed](https://about.gitlab.com/2018/07/19/gcp-move-update/#gitlab-pages-and-custom-domains)
from `52.167.214.135` to `35.185.44.232` in 2018.
### Add your custom domain to GitLab Pages settings
Once you've set the DNS record, you'll need navigate to your project's
**Setting > Pages** and click **+ New domain** to add your custom domain to
GitLab Pages. You can choose whether to add an [SSL/TLS certificate](#ssltls-certificates)
to make your website accessible under HTTPS or leave it blank. If you don't add a certificate,
your site will be accessible only via HTTP:
![Add new domain](img/add_certificate_to_pages.png)
Once you have added a new domain, you will need to **verify your ownership**
(unless the GitLab administrator has disabled this feature). A verification code
will be shown to you; add it as a [DNS TXT record](#dns-txt-record), then press
the "Verify ownership" button to activate your new domain:
![Verify your domain](img/verify_your_domain.png)
Once your domain has been verified, leave the verification record in place -
your domain will be periodically reverified, and may be disabled if the record
is removed.
You can add more than one alias (custom domains and subdomains) to the same project.
An alias can be understood as having many doors leading to the same room.
All the aliases you've set to your site will be listed on **Setting > Pages**.
From that page, you can view, add, and remove them.
Note that [DNS propagation may take some time (up to 24h)](http://www.inmotionhosting.com/support/domain-names/dns-nameserver-changes/domain-names-dns-changes),
although it's usually a matter of minutes to complete. Until it does, verification
will fail and attempts to visit your domain will respond with a 404.
### Redirecting `www.domain.com` to `domain.com` with Cloudflare
If you use Cloudflare, you can redirect `www` to `domain.com` without the need of adding both
`www.domain.com` and `domain.com` to GitLab. This happens due to a [Cloudflare feature that creates
a 301 redirect as a "page rule"](https://gitlab.com/gitlab-org/gitlab-ce/issues/48848#note_87314849) for redirecting `www.domain.com` to `domain.com`. In this case,
you can use the following setup:
- In Cloudflare, create a DNS `A` record pointing `domain.com` to `35.185.44.232`
- In GitLab, add the domain to GitLab Pages
- In Cloudflare, create a DNS `TXT` record to verify your domain
- In Cloudflare, create a DNS `CNAME` record pointing `www` to `domain.com`
## SSL/TLS Certificates
Every GitLab Pages project on GitLab.com will be available under
HTTPS for the default Pages domain (`*.gitlab.io`). Once you set
up your Pages project with your custom (sub)domain, if you want
it secured by HTTPS, you will have to issue a certificate for that
(sub)domain and install it on your project.
>**Note:**
Certificates are NOT required to add to your custom
(sub)domain on your GitLab Pages project, though they are
highly recommendable.
Let's start with an introduction to the importance of HTTPS.
Alternatively, jump ahead to [adding certificates to your project](#adding-certificates-to-pages).
### Why should I care about HTTPS?
This might be your first question. If our sites are hosted by GitLab Pages,
they are static, hence we are not dealing with server-side scripts
nor credit card transactions, then why do we need secure connections?
Back in the 1990s, where HTTPS came out, [SSL](https://en.wikipedia.org/wiki/Transport_Layer_Security#SSL_1.0.2C_2.0_and_3.0) was considered a "special"
security measure, necessary just for big companies, like banks and shoppings sites
with financial transactions.
Now we have a different picture. [According to Josh Aas](https://letsencrypt.org/2015/10/29/phishing-and-malware.html), Executive Director at [ISRG](https://en.wikipedia.org/wiki/Internet_Security_Research_Group):
> _Weve since come to realize that HTTPS is important for almost all websites. Its important for any website that allows people to log in with a password, any website that [tracks its users](https://www.washingtonpost.com/news/the-switch/wp/2013/12/10/nsa-uses-google-cookies-to-pinpoint-targets-for-hacking/) in any way, any website that [doesnt want its content altered](http://arstechnica.com/tech-policy/2014/09/why-comcasts-javascript-ad-injections-threaten-security-net-neutrality/), and for any site that offers content people might not want others to know they are consuming. Weve also learned that any site not secured by HTTPS [can be used to attack other sites](https://krebsonsecurity.com/2015/04/dont-be-fodder-for-chinas-great-cannon/)._
Therefore, the reason why certificates are so important is that they encrypt
the connection between the **client** (you, me, your visitors)
and the **server** (where you site lives), through a keychain of
authentications and validations.
How about taking Josh's advice and protecting our sites too? We will be
well supported, and we'll contribute to a safer internet.
### Organizations supporting HTTPS
There is a huge movement in favor of securing all the web. W3C fully
[supports the cause](https://w3ctag.github.io/web-https/) and explains very well
the reasons for that. Richard Barnes, a writer for Mozilla Security Blog,
suggested that [Firefox would deprecate HTTP](https://blog.mozilla.org/security/2015/04/30/deprecating-non-secure-http/),
and would no longer accept unsecured connections. Recently, Mozilla published a
[communication](https://blog.mozilla.org/security/2016/03/29/march-2016-ca-communication/)
reiterating the importance of HTTPS.
## Issuing Certificates
GitLab Pages accepts certificates provided in the [PEM](https://support.quovadisglobal.com/kb/a37/what-is-pem-format.aspx) format, issued by
[Certificate Authorities (CAs)](https://en.wikipedia.org/wiki/Certificate_authority) or as
[self-signed certificates](https://en.wikipedia.org/wiki/Self-signed_certificate). Note that [self-signed certificates are typically not used](https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/self-signed-certificates-secure-so-why-ban/)
for public websites for security reasons and to ensure that browsers trust your site's certificate.
There are various kinds of certificates, each one
with a certain security level. A static personal website will
not require the same security level as an online banking web app,
for instance.
There are some certificate authorities that
offer free certificates, aiming to make the internet more secure
to everyone. The most popular is [Let's Encrypt](https://letsencrypt.org/),
which issues certificates trusted by most of browsers, it's open
source, and free to use. See our tutorial on [how to secure your GitLab Pages website with Let's Encrypt](lets_encrypt_for_gitlab_pages.md).
Similarly popular are [certificates issued by CloudFlare](https://www.cloudflare.com/ssl/),
which also offers a [free CDN service](https://blog.cloudflare.com/cloudflares-free-cdn-and-you/).
Their certs are valid up to 15 years. See the tutorial on
[how to add a CloudFlare Certificate to your GitLab Pages website](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/).
### Adding certificates to Pages
Regardless the CA you choose, the steps to add your certificate to
your Pages project are the same.
#### Requirements
1. A PEM certificate
1. An intermediate certificate
1. A private key
![Pages project - adding certificates](img/add_certificate_to_pages.png)
These fields are found under your **Project**'s **Settings** > **Pages** > **New Domain**.
#### Certificate types
- A PEM certificate is the certificate generated by the CA,
which needs to be added to the field **Certificate (PEM)**.
- An [intermediate certificate](https://en.wikipedia.org/wiki/Intermediate_certificate_authority) (aka "root certificate") is
the part of the encryption keychain that identifies the CA.
Usually it's combined with the PEM certificate, but there are
some cases in which you need to add them manually.
[CloudFlare certs](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/)
are one of these cases.
- A private key is an encrypted key which validates
your PEM against your domain.
#### Add the certificate to your project
Once you've met the requirements:
- Your PEM certificate needs to be added to the first field.
- If your certificate is missing its intermediate, copy
and paste the root certificate (usually available from your CA website)
and paste it in the [same field as your PEM certificate](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/),
just jumping a line between them.
- Copy your private key and paste it in the last field.
NOTE: **Note:**
**Do not** open certificates or encryption keys in
regular text editors. Always use code editors (such as
Sublime Text, Atom, Dreamweaver, Brackets, etc).
## Force HTTPS for GitLab Pages websites
> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/28857) in GitLab 10.7.
To make your website's visitors even more secure, you can choose to
force HTTPS for GitLab Pages. By doing so, all attempts to visit your
website via HTTP will be automatically redirected to HTTPS via 301.
It works with both GitLab's default domain and with your custom
domain (as long as you've set a valid certificate for it).
To enable this setting, navigate to your project's **Settings > Pages**
and tick the checkbox **Force HTTPS (requires valid certificates)**.
This document was moved to [another location](custom_domains_ssl_tls_certification/index.md).

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@ -22,7 +22,7 @@ Optional Features:
1. **Optional**: an SSL/TLS certificate so your custom
domain is accessible under HTTPS.
The optional settings, custom domain, DNS records, and SSL/TLS certificates, are described in [Part 3](getting_started_part_three.md)).
The optional settings, custom domain, DNS records, and SSL/TLS certificates, are described in [GitLab Pages custom domains and SSL/TLS Certificates](custom_domains_ssl_tls_certification/index.md)).
## Project
@ -169,4 +169,4 @@ baseurl: ""
## Custom Domains
GitLab Pages supports custom domains and subdomains, served under HTTP or HTTPS.
See [GitLab Pages custom domains and SSL/TLS Certificates](getting_started_part_three.md) for more information.
See [GitLab Pages custom domains and SSL/TLS Certificates](custom_domains_ssl_tls_certification/index.md) for more information.

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@ -101,7 +101,7 @@ To get started with GitLab Pages, you can either:
1. Select **Create from Template**.
1. Choose one of the templates starting with **Pages**:
![Project templates for Pages](img/pages_project_templates_11-8.png)
![Project templates for Pages](img/pages_project_templates_v11_8.png)
1. From the left sidebar, navigate to your project's **CI/CD > Pipelines**
and click **Run pipeline** to trigger GitLab CI/CD to build and deploy your
@ -115,8 +115,8 @@ will run a new pipeline to publish your changes to the server.
_Advanced options:_
- [Use a custom domain](getting_started_part_three.md#adding-your-custom-domain-to-gitlab-pages)
- Apply [SSL/TLS certification](getting_started_part_three.md#ssltls-certificates) to your custom domain
- [Use a custom domain](custom_domains_ssl_tls_certification/index.md#set-up-pages-with-a-custom-domain)
- Apply [SSL/TLS certification](custom_domains_ssl_tls_certification/index.md#adding-an-ssltls-certificate-to-pages) to your custom domain
## Availability
@ -142,7 +142,7 @@ To learn more about configuration options for GitLab Pages, read the following:
| [GitLab CI/CD for GitLab Pages](getting_started_part_four.md) | Understand how to create your own `.gitlab-ci.yml` for your site. |
| [Exploring GitLab Pages](introduction.md) | Requirements, technical aspects, specific GitLab CI's configuration options, Access Control, custom 404 pages, limitations, FAQ. |
|---+---|
| [Custom domains and SSL/TLS Certificates](getting_started_part_three.md) | How to add custom domains and subdomains to your website, configure DNS records and SSL/TLS certificates. |
| [Custom domains and SSL/TLS Certificates](custom_domains_ssl_tls_certification/index.md) | How to add custom domains and subdomains to your website, configure DNS records and SSL/TLS certificates. |
| [CloudFlare certificates](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/) | Secure your Pages site with CloudFlare certificates. |
| [Let's Encrypt certificates](lets_encrypt_for_gitlab_pages.md) | Secure your Pages site with Let's Encrypt certificates. |
|---+---|

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@ -18,9 +18,9 @@ To follow along with this tutorial, we assume you already have:
- Created a [project](getting_started_part_two.md) in GitLab which
contains your website's source code.
- Acquired a domain (`example.com`) and added a [DNS entry](getting_started_part_three.md#dns-records)
- Acquired a domain (`example.com`) and added a [DNS entry](custom_domains_ssl_tls_certification/index.md#set-up-pages-with-a-custom-domain)
pointing it to your Pages website.
- [Added your domain to your Pages project](getting_started_part_three.md#add-your-custom-domain-to-gitlab-pages-settings)
- [Added your domain to your Pages project](custom_domains_ssl_tls_certification/index.md#steps)
and verified your ownership.
- Cloned your project into your computer.
- Your website up and running, served under HTTP protocol at `http://example.com`.

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@ -23,7 +23,7 @@ describe Emails::PagesDomains do
is_expected.to have_body_text(domain.domain)
is_expected.to have_body_text domain.url
is_expected.to have_body_text project_pages_domain_url(project, domain)
is_expected.to have_body_text help_page_url('user/project/pages/getting_started_part_three.md', anchor: 'dns-txt-record')
is_expected.to have_body_text help_page_url('user/project/pages/custom_domains_ssl_tls_certification/index.md', anchor: link_anchor)
end
end
end
@ -50,6 +50,7 @@ describe Emails::PagesDomains do
describe '#pages_domain_enabled_email' do
let(:email_subject) { "#{project.path} | GitLab Pages domain '#{domain.domain}' has been enabled" }
let(:link_anchor) { 'steps' }
subject { Notify.pages_domain_enabled_email(domain, user) }
@ -60,6 +61,7 @@ describe Emails::PagesDomains do
describe '#pages_domain_disabled_email' do
let(:email_subject) { "#{project.path} | GitLab Pages domain '#{domain.domain}' has been disabled" }
let(:link_anchor) { '4-verify-the-domains-ownership' }
subject { Notify.pages_domain_disabled_email(domain, user) }
@ -72,6 +74,7 @@ describe Emails::PagesDomains do
describe '#pages_domain_verification_succeeded_email' do
let(:email_subject) { "#{project.path} | Verification succeeded for GitLab Pages domain '#{domain.domain}'" }
let(:link_anchor) { 'steps' }
subject { Notify.pages_domain_verification_succeeded_email(domain, user) }
@ -82,6 +85,7 @@ describe Emails::PagesDomains do
describe '#pages_domain_verification_failed_email' do
let(:email_subject) { "#{project.path} | ACTION REQUIRED: Verification failed for GitLab Pages domain '#{domain.domain}'" }
let(:link_anchor) { 'steps' }
subject { Notify.pages_domain_verification_failed_email(domain, user) }