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# Polling configuration
The GitLab UI polls for updates for different resources (issue notes, issue
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# Pseudonymizer **(ULTIMATE)**
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/5532) in [GitLab Ultimate](https://about.gitlab.com/pricing/) 11.1.
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# Doctor Rake tasks **(CORE ONLY)**
This is a collection of tasks to help investigate and repair
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# Geo Rake Tasks **(PREMIUM ONLY)**
The following Rake tasks are for [Geo installations](../geo/index.md).
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# GitHub import **(CORE ONLY)**
> [Introduced]( https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/10308) in GitLab 9.1.
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# Maintenance Rake tasks **(CORE ONLY)**
GitLab provides Rake tasks for general maintenance.
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# Repository storage Rake tasks **(CORE ONLY)**
This is a collection of Rake tasks to help you list and migrate
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# Uploads migrate Rake tasks **(CORE ONLY)**
There is a Rake task for migrating uploads between different storage types.
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# Uploads sanitize Rake tasks **(CORE ONLY)**
In GitLab 11.9 and later, EXIF data is automatically stripped from JPG or TIFF image uploads.
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# Set up Postfix for incoming email
This document will take you through the steps of setting up a basic Postfix mail
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# How to restart GitLab
Depending on how you installed GitLab, there are different methods to restart
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# Signing outgoing email with S/MIME
Notification emails sent by GitLab can be signed with S/MIME for improved
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# Debugging Tips
Sometimes things don't work the way they should. Here are some tips on debugging issues out
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# Troubleshooting Elasticsearch
To install and configure Elasticsearch, and for common and known issues,
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# Troubleshooting a GitLab installation
Below are some resources to help you troubleshoot a GitLab installation
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# Parsing GitLab logs with `jq`
We recommend using log aggregation and search tools like Kibana and Splunk whenever possible,
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# Navigating GitLab via Rails console
At the heart of GitLab is a web application [built using the Ruby on Rails
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# Troubleshooting Sidekiq
Sidekiq is the background job processor GitLab uses to asynchronously run
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