In addition to MongoDB FastNetMon Advanced has complete support for FerretDB which has following advantages over MongoDB:
- Easy upgrade (no need to upgrade to intermediate major versions)
- Easy maintenance (just single binary)
- Truly free Apache 2 open source license instead of proprietary SSPL
- Transparent and community focused development model
To migrate existing installation from MongoDB to FerretDB you need to export FastNetMon configuration using configuration export / import capability.
This option is supported by FastNetMon starting from 2.0.182 and if you run older version you will need to upgrade at least to 2.0.182.
After that please make full configuration backup:
sudo fcli export_configuration fastnetmon_backup_to_ferretdb_migration.tar
Then you need to stop MongoDB and disable automatic start for it:
sudo systemctl stop mongod.service sudo systemctl disable mongod.service
Then install FerretDB:
wget https://install.fastnetmon.com/installer -Oinstaller sudo chmod +x installer sudo ./installer -ferretdb_only
Then check that FerretDB is running:
sudo netstat -lnpt|grep ferret tcp6 0 0 ::1:27017 :::* LISTEN 5232/ferretdb tcp6 0 0 ::1:8089 :::* LISTEN 5232/ferretdb
After that you will need to upgrade FastNetMon to latest version which has native support for FerretDB as older versions will not work with it.
After finishing upgrade check that fcli can reach FerretDB:
sudo fcli show main enable_ban false
And then check that FastNetMon daemon is working fine with standard configuration:
sudo fcli commit
Then please wait ~60 seconds and check following command to confirm that FastNetMon daemon is running fine:
sudo fcli show license Production license for 10000 mbits valid until 2024-06-12
After that remove default configuration created by FerretDB installer:
sudo fcli create_configuration sudo fcli delete hostgroup global
And import previously saved configuration from MongoDB:
sudo fcli import_configuration fastnetmon_backup_to_ferretdb_migration.tar
And apply configuration:
sudo fcli commit
After that I can recommend doing DDoS drill to ensure that everything works correctly after migration.