Hi, I'm Phil.

I’m a software engineer from Germany, living in Connecticut, USA. I build and maintain ntfy.sh, an open source push notification service, and I have spent the last two decades around Linux, backups, synchronization and infrastructure.

This site collects my writing (since 2008), my projects, and a few papers from university days. You can find me on GitHub and LinkedIn.

Writing

2021-10-19 Lossless MySQL semi-sync replication and automated failover
2021-06-20 elastictl: Import, export, re-shard and performance-test Elasticsearch indices
2020-12-17 Snippet 0x0F: Recursive search/replace tool "re"
2020-12-13 Go: Calculating public key hashes for public key pinning in curl
2020-10-08 Reliably rebooting Ubuntu using watchdogs
2019-11-19 Providing remote access to devices via SSH tunnels
2019-09-18 Image based upgrades: Upgrading software and OS of 80k servers every two weeks
2019-07-22 Deduplicating NTFS file systems (fsdup)

All 71 posts →