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docs/install/debian.md

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+# Debian package
+## Install
+1. Donwload the [latest release](https://github.com/kamax-io/mxisd/releases/latest)
+2. Run:
+```
+dpkg -i /path/to/downloaded/mxisd.deb
+```
+## Files
+| Location                          | Purpose                                      |
+|-----------------------------------|----------------------------------------------|
+| /etc/mxisd                        | Configuration directory                      |
+| /etc/mxisd/mxisd.yaml             | Main configuration file                      |
+| /etc/mxisd/signing.key            | Default location for mxisd signing keys      |
+| /etc/systemd/system/mxisd.service | Systemd configuration file for mxisd service |
+| /usr/lib/mxisd                    | Binairies                                    |
+| /var/lib/mxisd                    | Data                                         |
+
+## Control
+Start mxisd using:
+```
+sudo systemctl start mxisd
+```
+
+Stop mxisd using:
+```
+sudo systemctl stop mxisd
+```
+
+## Troubleshoot
+All logs are sent to `STDOUT` which are saved in `/var/log/syslog` by default.  
+You can:
+- grep & tail using `mxisd`:
+```
+tail -n 99 -f /var/log/syslog | grep mxisd
+```
+- use Systemd's journal:
+```
+journalctl -f n 99 -u mxisd
+```