Update redirected or broken links

Fix these links so they go to the right location.

Author: amyq

doc/settings/configuration.md

@@ -655,11 +655,11 @@ To configure Sentry:
    gitlab_rails['sentry_environment'] = 'production'
    ```
 
-   The [Sentry environment](https://docs.sentry.io/product/sentry-basics/environments/)
+   The [Sentry environment](https://docs.sentry.io/product/sentry-basics/concepts/environments/)
    can be used to track errors and issues across several deployed GitLab
    environments, for example, lab, development, staging, and production.
 
-1. Optional. To set custom [Sentry tags](https://docs.sentry.io/product/sentry-basics/enrich-data/)
+1. Optional. To set custom [Sentry tags](https://docs.sentry.io/product/sentry-basics/concepts/enrich-data/)
    on every event sent from a particular server, the `GITLAB_SENTRY_EXTRA_TAGS`
    an environment variable can be set. This variable is a JSON-encoded hash representing any
    tags that should be passed to Sentry for all exceptions from that server.

doc/settings/logs.md

@@ -77,7 +77,7 @@ The [runit-managed](../architecture/index.md#runit) services in Linux package in
   GitLab last wrote to that file.
 - `zmore` and `zgrep` allow viewing and searching through both compressed or uncompressed logs.
 
-Read the [svlogd documentation](http://smarden.org/runit/svlogd.8.html) for more information
+Read the [svlogd documentation](https://smarden.org/runit/svlogd.8.html) for more information
 about the files it generates.
 
 You can modify svlogd settings via `/etc/gitlab/gitlab.rb` with the following settings:

doc/settings/memory_constrained_envs.md

@@ -122,7 +122,7 @@ always [upgrade to GitLab EE](https://docs.gitlab.com/ee/update/package/convert_
 ## Optimize Puma
 
 WARNING:
-This is an experimental [Alpha feature](https://docs.gitlab.com/ee/policy/alpha-beta-support.html#alpha-features) and subject to change without notice. The feature
+This is an experimental [Alpha feature](https://docs.gitlab.com/ee/policy/experiment-beta-support.html#alpha-features) and subject to change without notice. The feature
 is not ready for production use. If you want to use this feature, we recommend testing
 with non-production data first. See the [known issues](https://docs.gitlab.com/ee/administration/operations/puma.html#puma-single-mode-known-issues)
 for additional details.

doc/settings/microsoft_graph_mailer.md

@@ -15,13 +15,13 @@ DETAILS:
 Prerequisites:
 
 - To use the Microsoft Graph API to send mails, you must first
-  [create an application](https://learn.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-app)
+  [create an application](https://learn.microsoft.com/en-us/entra/identity-platform/quickstart-register-app)
   in the Azure Active Directory, and add the `Mail.Send`
   [application permission](https://learn.microsoft.com/en-us/graph/permissions-reference).
 - Set the application permissions to **App-only access**. Make sure the permissions are not set to **Delegated**.
 
 If you would rather send application emails using [Microsoft Graph API](https://learn.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0&tabs=http)
-with [OAuth 2.0 client credentials flow](https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow),
+with [OAuth 2.0 client credentials flow](https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-client-creds-grant-flow),
 add the following configuration information to `/etc/gitlab/gitlab.rb` and run `gitlab-ctl reconfigure`.
 
 ```ruby

doc/settings/smtp.md

@@ -507,9 +507,9 @@ The API Key you created must be entered in `smtp_password`.
 ### Brevo
 
 This configuration was tested with the Brevo [SMTP relay service](hhttps://www.brevo.com/free-smtp-server/). To grab the
-relevant account credentials via the URLs commented into this example, [log in to your Brevo account](https://account-app.brevo.com/account/login).
+relevant account credentials via the URLs commented into this example, [log in to your Brevo account](https://login.brevo.com).
 
-For further details, refer to the Brevo [help page](https://help.brevo.com/hc/en-us/articles/209462765-What-is-Sendinblue-SMTP).
+For further details, refer to the Brevo [help page](https://help.brevo.com/hc/en-us/articles/209462765-What-is-Brevo-SMTP).
 
 ```ruby
 gitlab_rails['smtp_enable'] = true
@@ -790,7 +790,7 @@ gitlab_rails['smtp_tls'] = true
 ### FastMail
 
 FastMail requires an
-[App Password](https://www.fastmail.help/hc/en-us/articles/360058752854)
+[App Password](https://www.fastmail.help/hc/en-us/articles/360058752854-App-passwords)
 even when two-step verification is not enabled.
 
 ```ruby
@@ -1241,7 +1241,7 @@ gitlab_rails['gitlab_email_from'] = '[email protected]'
 
 ### Feishu mail
 
-Check out more details in the [help page](https://www.feishu.cn/hc/articles/360049068017) of Feishu mail.
+Check out more details in the [help page](https://www.feishu.cn/hc/en-US/articles/360049068017-admin-allow-members-to-access-feishu-mail-using-third-party-email-clients) of Feishu mail.
 
 ```ruby
 gitlab_rails['smtp_enable'] = true
@@ -1375,7 +1375,7 @@ following settings are set:
   gitlab_rails['smtp_tls'] = true
   ```
 
-For more details, read [about the confusion over SMTP ports, TLS, and STARTTLS](https://www.fastmail.help/hc/en-us/articles/360058753834).
+For more details, read [about the confusion over SMTP ports, TLS, and STARTTLS](https://www.fastmail.help/hc/en-us/articles/360058753834-SSL-TLS-and-STARTTLS).
 
 ### Emails not sending when using external Sidekiq