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75 lines
2.0 KiB
Markdown
75 lines
2.0 KiB
Markdown
---
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title: 'Tutorials | Crowdsec'
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---
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!!! quote "What is Crowdsec?"
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Crowdsec is an open source software that detects and blocks attackers using log analysis.
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It has access to a global community-wide IP reputation database.
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[Source](https://www.crowdsec.net)
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## Installation
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Crowdsec supports multiple [installation methods][crowdsec-installation-docs], however this page will use the docker installation.
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### Docker mailserver
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In your `compose.yaml` for the DMS service, add a bind mount volume for `/var/log/mail`. This is to share the DMS logs to a separate crowdsec container.
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!!! example
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```yaml
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services:
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mailserver:
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- /docker-data/dms/mail-logs/:/var/log/mail/
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```
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### Crowdsec
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The crowdsec container should also bind mount the same host path for the DMS logs that was added in the DMS example above.
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```yaml
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services:
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image: crowdsecurity/crowdsec
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restart: unless-stopped
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ports:
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- "8080:8080"
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- "6060:6060"
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volumes:
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- /docker-data/dms/mail-logs/:/var/log/dms:ro
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- ./acquis.d:/etc/crowdsec/acquis.d
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- crowdsec-db:/var/lib/crowdsec/data/
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environment:
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# These collection contains parsers and scenarios for postfix and dovecot
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COLLECTIONS: crowdsecurity/postfix crowdsecurity/dovecot
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TZ: Europe/Paris
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volumes:
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crowdsec-db:
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```
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## Configuration
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Configure crowdsec to read and parse DMS logs file.
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!!! example
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Create the file `dms.yml` in `./acquis.d/`
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```yaml
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---
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source: file
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filenames:
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- /var/log/dms/mail.log
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labels:
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type: syslog
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```
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!!! warning Bouncers
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Crowdsec on its own is just a detection software, the remediation is done by components called bouncers.
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This page does not explain how to install or configure a bouncer. It can be found in [crowdsec documentation][crowdsec-bouncer-docs].
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[crowdsec-installation-docs]: https://doc.crowdsec.net/docs/getting_started/install_crowdsec
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[crowdsec-bouncer-docs]: https://doc.crowdsec.net/docs/bouncers/intro
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