--- stage: none group: unassigned info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments --- # GitLab.com settings **(FREE SAAS)** This page contains information about the settings that are used on [GitLab.com](https://about.gitlab.com/pricing/). ## SSH host keys fingerprints Below are the fingerprints for GitLab.com's SSH host keys. The first time you connect to a GitLab.com repository, one of these keys is displayed in the output. | Algorithm | MD5 (deprecated) | SHA256 | |------------------|------------------|---------| | ED25519 | `2e:65:6a:c8:cf:bf:b2:8b:9a:bd:6d:9f:11:5c:12:16` | `eUXGGm1YGsMAS7vkcx6JOJdOGHPem5gQp4taiCfCLB8` | | RSA | `b6:03:0e:39:97:9e:d0:e7:24:ce:a3:77:3e:01:42:09` | `ROQFvPThGrW4RuWLoL9tq9I9zJ42fK4XywyRtbOz/EQ` | | DSA (deprecated) | `7a:47:81:3a:ee:89:89:64:33:ca:44:52:3d:30:d4:87` | `p8vZBUOR0XQz6sYiaWSMLmh0t9i8srqYKool/Xfdfqw` | | ECDSA | `f1:d0:fb:46:73:7a:70:92:5a:ab:5d:ef:43:e2:1c:35` | `HbW3g8zUjNSksFbqTiUWPWg2Bq1x8xdGUrliXFzSnUw` | ## SSH `known_hosts` entries Add the following to `.ssh/known_hosts` to skip manual fingerprint confirmation in SSH: ```plaintext gitlab.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAfuCHKVTjquxvt6CM6tdG4SLp1Btn/nOeHHE5UOzRdf gitlab.com ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCsj2bNKTBSpIYDEGk9KxsGh3mySTRgMtXL583qmBpzeQ+jqCMRgBqB98u3z++J1sKlXHWfM9dyhSevkMwSbhoR8XIq/U0tCNyokEi/ueaBMCvbcTHhO7FcwzY92WK4Yt0aGROY5qX2UKSeOvuP4D6TPqKF1onrSzH9bx9XUf2lEdWT/ia1NEKjunUqu1xOB/StKDHMoX4/OKyIzuS0q/T1zOATthvasJFoPrAjkohTyaDUz2LN5JoH839hViyEG82yB+MjcFV5MU3N1l1QL3cVUCh93xSaua1N85qivl+siMkPGbO5xR/En4iEY6K2XPASUEMaieWVNTRCtJ4S8H+9 gitlab.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFSMqzJeV9rUzU4kWitGjeR4PWSa29SPqJ1fVkhtj3Hw9xjLVXVYrU9QlYWrOLXBpQ6KWjbjTDTdDkoohFzgbEY= ``` ## Mail configuration GitLab.com sends emails from the `mg.gitlab.com` domain by using [Mailgun](https://www.mailgun.com/), and has its own dedicated IP address (`192.237.158.143`). The IP address for `mg.gitlab.com` is subject to change at any time. ### Service Desk custom mailbox On GitLab.com there's a mailbox configured for Service Desk with the email adress: `contact-project+%{key}@incoming.gitlab.com`. To use this mailbox, configure the [custom suffix](../project/service_desk.md#configuring-a-custom-email-address-suffix) in project settings. ## Backups [See our backup strategy](https://about.gitlab.com/handbook/engineering/infrastructure/production/#backups). To back up an entire project on GitLab.com, you can export it either: - [Through the UI](../project/settings/import_export.md). - [Through the API](../../api/project_import_export.md#schedule-an-export). You can also use the API to programmatically upload exports to a storage platform, such as Amazon S3. With exports, be aware of [what is and is not](../project/settings/import_export.md#exported-contents) included in a project export. GitLab is built on Git, so you can back up just the repository of a project by [cloning](../../gitlab-basics/start-using-git.md#clone-a-repository) it to another computer. Similarly, you can clone a project's wiki to back it up. All files [uploaded after August 22, 2020](../project/wiki/index.md#create-a-new-wiki-page) are included when cloning. ## Alternative SSH port GitLab.com can be reached by using a [different SSH port](https://about.gitlab.com/blog/2016/02/18/gitlab-dot-com-now-supports-an-alternate-git-plus-ssh-port/) for `git+ssh`. | Setting | Value | |------------|---------------------| | `Hostname` | `altssh.gitlab.com` | | `Port` | `443` | An example `~/.ssh/config` is the following: ```plaintext Host gitlab.com Hostname altssh.gitlab.com User git Port 443 PreferredAuthentications publickey IdentityFile ~/.ssh/gitlab ``` ## GitLab Pages Below are the settings for [GitLab Pages](https://about.gitlab.com/stages-devops-lifecycle/pages/). | Setting | GitLab.com | Default | |---------------------------|------------------------|------------------------| | Domain name | `gitlab.io` | - | | IP address | `35.185.44.232` | - | | Custom domains support | **{check-circle}** Yes | **{dotted-circle}** No | | TLS certificates support | **{check-circle}** Yes | **{dotted-circle}** No | | Maximum size (compressed) | 1 GB | 100 MB | The maximum size of your Pages site is regulated by the artifacts maximum size, which is part of [GitLab CI/CD](#gitlab-cicd). ## GitLab CI/CD Below are the current settings regarding [GitLab CI/CD](../../ci/index.md). Any settings or feature limits not listed here are using the defaults listed in the related documentation. | Setting | GitLab.com | Default | |-------------------------------------|------------|---------| | Artifacts maximum size (compressed) | 1 GB | 100 MB | | Artifacts [expiry time](../../ci/yaml/index.md#artifactsexpire_in) | From June 22, 2020, deleted after 30 days unless otherwise specified (artifacts created before that date have no expiry). | deleted after 30 days unless otherwise specified | | Scheduled Pipeline Cron | `*/5 * * * *` | `3-59/10 * * * *` | | [Max jobs in active pipelines](../../administration/instance_limits.md#number-of-jobs-in-active-pipelines) | `500` for Free tier, unlimited otherwise | Unlimited | | [Max CI/CD subscriptions to a project](../../administration/instance_limits.md#number-of-cicd-subscriptions-to-a-project) | `2` | Unlimited | | [Max pipeline schedules in projects](../../administration/instance_limits.md#number-of-pipeline-schedules) | `10` for Free tier, `50` for all paid tiers | Unlimited | | [Scheduled Job Archival](../../user/admin_area/settings/continuous_integration.md#archive-jobs) | 3 months | Never | | Max test cases per [unit test report](../../ci/unit_test_reports.md) | `500_000` | Unlimited | | [Max registered runners](../../administration/instance_limits.md#number-of-registered-runners-per-scope) | `50` per-project and per-group for Free tier,
`1_000` per-group for all paid tiers / `1_000` per-project for all paid tiers | `1_000` per-group / `1_000` per-project | ## Account and limit settings GitLab.com has the following [account limits](../admin_area/settings/account_and_limit_settings.md) enabled. If a setting is not listed, it is set to the default value. If you are near or over the repository size limit, you can either [reduce your repository size with Git](../project/repository/reducing_the_repo_size_using_git.md) or [purchase additional storage](https://about.gitlab.com/pricing/licensing-faq/#can-i-buy-more-storage). | Setting | GitLab.com | Default | |-------------------------------|------------|---------| | [Repository size including LFS](../admin_area/settings/account_and_limit_settings.md#repository-size-limit) | 10 GB | Unlimited | | Maximum import size | 5 GB | Unlimited ([Modified](https://gitlab.com/gitlab-org/gitlab/-/issues/251106) from 50MB to unlimited in GitLab 13.8. | | Maximum attachment size | 10 MB | 10 MB | NOTE: `git push` and GitLab project imports are limited to 5 GB per request through Cloudflare. Git LFS and imports other than a file upload are not affected by this limit. ## IP range GitLab.com uses the IP ranges `34.74.90.64/28` and `34.74.226.0/24` for traffic from its Web/API fleet. This whole range is solely allocated to GitLab. You can expect connections from webhooks or repository mirroring to come from those IPs and allow them. GitLab.com is fronted by Cloudflare. For incoming connections to GitLab.com you might need to allow CIDR blocks of Cloudflare ([IPv4](https://www.cloudflare.com/ips-v4) and [IPv6](https://www.cloudflare.com/ips-v6)). For outgoing connections from CI/CD runners, we are not providing static IP addresses. All GitLab runners are deployed into Google Cloud Platform (GCP). Any IP-based firewall can be configured by looking up all [IP address ranges or CIDR blocks for GCP](https://cloud.google.com/compute/docs/faq#find_ip_range). ## Hostname list Add these hostnames when you configure allow-lists in local HTTP(S) proxies, or other web-blocking software that governs end-user computers. Pages on GitLab.com load content from these hostnames: - `gitlab.com` - `*.gitlab.com` - `*.gitlab-static.net` - `*.gitlab.io` - `*.gitlab.net` Documentation and Company pages served over `docs.gitlab.com` and `about.gitlab.com` also load certain page content directly from common public CDN hostnames. ## Webhooks The following limits apply for [Webhooks](../project/integrations/webhooks.md): | Setting | GitLab.com | Default | |----------------------|------------|---------| | [Webhook rate limit](../../administration/instance_limits.md#webhook-rate-limit) | `120` calls per minute for GitLab Free, unlimited for GitLab Premium and GitLab Ultimate | Unlimited | | [Number of webhooks](../../administration/instance_limits.md#number-of-webhooks) | `100` per project, `50` per group | `100` per project, `50` per group | | Maximum payload size | 25 MB | 25 MB | ## Shared runners GitLab has shared runners on GitLab.com that you can use to run your CI jobs. For more information, see [choosing a runner](../../ci/runners/index.md). ## Sidekiq GitLab.com runs [Sidekiq](https://sidekiq.org) with arguments `--timeout=4 --concurrency=4` and the following environment variables: | Setting | GitLab.com | Default | |----------------------------------------|------------|-----------| | `SIDEKIQ_DAEMON_MEMORY_KILLER` | - | `1` | | `SIDEKIQ_MEMORY_KILLER_MAX_RSS` | `2000000` | `2000000` | | `SIDEKIQ_MEMORY_KILLER_HARD_LIMIT_RSS` | - | - | | `SIDEKIQ_MEMORY_KILLER_CHECK_INTERVAL` | - | `3` | | `SIDEKIQ_MEMORY_KILLER_GRACE_TIME` | - | `900` | | `SIDEKIQ_MEMORY_KILLER_SHUTDOWN_WAIT` | - | `30` | | `SIDEKIQ_LOG_ARGUMENTS` | `1` | `1` | NOTE: The `SIDEKIQ_MEMORY_KILLER_MAX_RSS` setting is `16000000` on Sidekiq import nodes and Sidekiq export nodes. ## PostgreSQL GitLab.com being a fairly large installation of GitLab means we have changed various PostgreSQL settings to better suit our needs. For example, we use streaming replication and servers in hot-standby mode to balance queries across different database servers. The list of GitLab.com specific settings (and their defaults) is as follows: | Setting | GitLab.com | Default | |:--------------------------------------|:--------------------------------------------------------------------|:--------------------------------------| | `archive_command` | `/usr/bin/envdir /etc/wal-e.d/env /opt/wal-e/bin/wal-e wal-push %p` | empty | | `archive_mode` | on | off | | `autovacuum_analyze_scale_factor` | 0.01 | 0.01 | | `autovacuum_max_workers` | 6 | 3 | | `autovacuum_vacuum_cost_limit` | 1000 | -1 | | `autovacuum_vacuum_scale_factor` | 0.01 | 0.02 | | `checkpoint_completion_target` | 0.7 | 0.9 | | `checkpoint_segments` | 32 | 10 | | `effective_cache_size` | 338688MB | Based on how much memory is available | | `hot_standby` | on | off | | `hot_standby_feedback` | on | off | | `log_autovacuum_min_duration` | 0 | -1 | | `log_checkpoints` | on | off | | `log_line_prefix` | `%t [%p]: [%l-1]` | empty | | `log_min_duration_statement` | 1000 | -1 | | `log_temp_files` | 0 | -1 | | `maintenance_work_mem` | 2048MB | 16 MB | | `max_replication_slots` | 5 | 0 | | `max_wal_senders` | 32 | 0 | | `max_wal_size` | 5GB | 1GB | | `shared_buffers` | 112896MB | Based on how much memory is available | | `shared_preload_libraries` | pg_stat_statements | empty | | `shmall` | 30146560 | Based on the server's capabilities | | `shmmax` | 123480309760 | Based on the server's capabilities | | `wal_buffers` | 16MB | -1 | | `wal_keep_segments` | 512 | 10 | | `wal_level` | replica | minimal | | `statement_timeout` | 15s | 60s | | `idle_in_transaction_session_timeout` | 60s | 60s | Some of these settings are in the process being adjusted. For example, the value for `shared_buffers` is quite high, and we are [considering adjusting it](https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/4985). ## Puma GitLab.com uses the default of 60 seconds for [Puma request timeouts](https://docs.gitlab.com/omnibus/settings/puma.html#worker-timeout). ## GitLab.com-specific rate limits NOTE: See [Rate limits](../../security/rate_limits.md) for administrator documentation. When a request is rate limited, GitLab responds with a `429` status code. The client should wait before attempting the request again. There are also informational headers with this response detailed in [rate limiting responses](#rate-limiting-responses). The following table describes the rate limits for GitLab.com, both before and after the limits change in January, 2021: | Rate limit | Before 2021-01-18 | From 2021-01-18 | From 2021-02-12 | |:--------------------------------------------------------------------------|:----------------------------|:------------------------------|:------------------------------| | **Protected paths** (for a given **IP address**) | **10** requests per minute | **10** requests per minute | **10** requests per minute | | **Raw endpoint** traffic (for a given **project, commit, and file path**) | **300** requests per minute | **300** requests per minute | **300** requests per minute | | **Unauthenticated** traffic (from a given **IP address**) | No specific limit | **500** requests per minute | **500** requests per minute | | **Authenticated** API traffic (for a given **user**) | No specific limit | **2,000** requests per minute | **2,000** requests per minute | | **Authenticated** non-API HTTP traffic (for a given **user**) | No specific limit | **1,000** requests per minute | **1,000** requests per minute | | **All** traffic (from a given **IP address**) | **600** requests per minute | **2,000** requests per minute | **2,000** requests per minute | | **Issue creation** | | **300** requests per minute | **300** requests per minute | | **Note creation** (on issues and merge requests) | | **300** requests per minute | **60** requests per minute | More details are available on the rate limits for [protected paths](#protected-paths-throttle) and [raw endpoints](../../user/admin_area/settings/rate_limits_on_raw_endpoints.md). ### Rate limiting responses For information on rate limiting responses, see: - [List of headers on responses to blocked requests](../admin_area/settings/user_and_ip_rate_limits.md#response-headers). - [Customizable response text](../admin_area/settings/user_and_ip_rate_limits.md#response-text). ### Protected paths throttle GitLab.com responds with HTTP status code `429` to POST requests at protected paths that exceed 10 requests per **minute** per IP address. See the source below for which paths are protected. This includes user creation, user confirmation, user sign in, and password reset. [User and IP rate limits](../admin_area/settings/user_and_ip_rate_limits.md#response-headers) includes a list of the headers responded to blocked requests. See [Protected Paths](../admin_area/settings/protected_paths.md) for more details. ### IP blocks IP blocks can occur when GitLab.com receives unusual traffic from a single IP address that the system views as potentially malicious. This can be based on rate limit settings. After the unusual traffic ceases, the IP address is automatically released depending on the type of block, as described in a following section. If you receive a `403 Forbidden` error for all requests to GitLab.com, check for any automated processes that may be triggering a block. For assistance, contact [GitLab Support](https://support.gitlab.com/hc/en-us) with details, such as the affected IP address. #### Git and container registry failed authentication ban GitLab.com responds with HTTP status code `403` for 1 hour, if 30 failed authentication requests were received in a 3-minute period from a single IP address. This applies only to Git requests and container registry (`/jwt/auth`) requests (combined). This limit: - Is reset by requests that authenticate successfully. For example, 29 failed authentication requests followed by 1 successful request, followed by 29 more failed authentication requests would not trigger a ban. - Does not apply to JWT requests authenticated by `gitlab-ci-token`. No response headers are provided. ### Pagination response headers For performance reasons, if a query returns more than 10,000 records, GitLab doesn't return the following headers: - `x-total`. - `x-total-pages`. - `rel="last"` `link`. ### Visibility settings If created before GitLab 12.2 (July 2019), these items have the [Internal visibility](../../public_access/public_access.md#internal-projects) setting [disabled on GitLab.com](https://gitlab.com/gitlab-org/gitlab/-/issues/12388): - Projects - Groups - Snippets ### SSH maximum number of connections GitLab.com defines the maximum number of concurrent, unauthenticated SSH connections by using the [MaxStartups setting](http://man.openbsd.org/sshd_config.5#MaxStartups). If more than the maximum number of allowed connections occur concurrently, they are dropped and users get [an `ssh_exchange_identification` error](../../topics/git/troubleshooting_git.md#ssh_exchange_identification-error). ### Import/export To help avoid abuse, project and group imports, exports, and export downloads are rate limited. See [Project import/export rate limits](../../user/project/settings/import_export.md#rate-limits) and [Group import/export rate limits](../../user/group/settings/import_export.md#rate-limits) for details. ### Non-configurable limits See [non-configurable limits](../../security/rate_limits.md#non-configurable-limits) for information on rate limits that are not configurable, and therefore also used on GitLab.com. ## GitLab.com Logging We use [Fluentd](https://gitlab.com/gitlab-com/runbooks/tree/master/logging/doc#fluentd) to parse our logs. Fluentd sends our logs to [Stackdriver Logging](https://gitlab.com/gitlab-com/runbooks/tree/master/logging/doc#stackdriver) and [Cloud Pub/Sub](https://gitlab.com/gitlab-com/runbooks/tree/master/logging/doc#cloud-pubsub). Stackdriver is used for storing logs long-term in Google Cold Storage (GCS). Cloud Pub/Sub is used to forward logs to an [Elastic cluster](https://gitlab.com/gitlab-com/runbooks/tree/master/logging/doc#elastic) using [`pubsubbeat`](https://gitlab.com/gitlab-com/runbooks/tree/master/logging/doc#pubsubbeat-vms). You can view more information in our runbooks such as: - A [detailed list of what we're logging](https://gitlab.com/gitlab-com/runbooks/-/tree/master/docs/logging#what-are-we-logging) - Our [current log retention policies](https://gitlab.com/gitlab-com/runbooks/-/tree/master/docs/logging#retention) - A [diagram of our logging infrastructure](https://gitlab.com/gitlab-com/runbooks/-/tree/master/docs/logging#logging-infrastructure-overview) ### Job Logs By default, GitLab does not expire job logs. Job logs are retained indefinitely, and can't be configured on GitLab.com to expire. You can erase job logs [manually with the Jobs API](../../api/jobs.md#erase-a-job) or by [deleting a pipeline](../../ci/pipelines/index.md#delete-a-pipeline). ## GitLab.com at scale In addition to the GitLab Enterprise Edition Omnibus install, GitLab.com uses the following applications and settings to achieve scale. All settings are publicly available at [chef cookbooks](https://gitlab.com/gitlab-cookbooks). ### Elastic Cluster We use Elasticsearch and Kibana for part of our monitoring solution: - [`gitlab-cookbooks` / `gitlab-elk` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab-elk) - [`gitlab-cookbooks` / `gitlab_elasticsearch` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab_elasticsearch) ### Fluentd We use Fluentd to unify our GitLab logs: - [`gitlab-cookbooks` / `gitlab_fluentd` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab_fluentd) ### Prometheus Prometheus complete our monitoring stack: - [`gitlab-cookbooks` / `gitlab-prometheus` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab-prometheus) ### Grafana For the visualization of monitoring data: - [`gitlab-cookbooks` / `gitlab-grafana` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab-grafana) ### Sentry Open source error tracking: - [`gitlab-cookbooks` / `gitlab-sentry` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab-sentry) ### Consul Service discovery: - [`gitlab-cookbooks` / `gitlab_consul` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab_consul) ### HAProxy High Performance TCP/HTTP Load Balancer: - [`gitlab-cookbooks` / `gitlab-haproxy` · GitLab](https://gitlab.com/gitlab-cookbooks/gitlab-haproxy)