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Docker Networking Part 2 – what happens in docker stays in docker.
After having created my docker DMZ in part 1, I realized that if I just connected the networks of the docker-containers I wanted to access from the internet to the firewall container, I could avoid exposing their ports to the underlying machine altogether, thereby reducing the number of open ports on the server itself. I…
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A virtualized DMZ with docker
Being somewhat of a minimalist, having only one server at home, but still trying to make a good, secure and stable infrastructure, it bothered me to forward network traffic directly to my server. Granted, most of the services exposed was running in docker, but it still was forwarding it directly into my «red zone». A…
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AI Image Analyzers – a duel between Google Bard and ChatGPT (GPT-4)
Having scanned some 1700 slides of various quality, various age (from 1964 up to the 90’s), and with sometimes dubious labelling and sorting, I decided to do some research into whether the current crop on publically available AIs can be of some help. Both Google Bard and OpenAIs ChatGPT now has image analyzing capabilities, so…
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Microsoft – incompetent or malicious?
A couple of days before christmas, mail sent from my mail server to people hosting their mail in the MS Office365 platform started bouncing: <NN@xyz.no>: host xyz-no.mail.protection.outlook.com[104.47.18.74] said: 550 5.7.511 Access denied, banned sender[X.X.X.X]. To request removal from this list please forward this message to delist@messaging.microsoft.com. For more information please go to http://go.microsoft.com/fwlink/?LinkId=526653. AS(1410) [AM6EUR05FT044.eop-eur05.prod.protection.outlook.com]…
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Changing partitions and zfs disklayout without downtime?
When setting up my SSD zpool – which I basically wanted because I wanted *no* constant disk-access to my disk-based zpool, I was lazy. Laziness almost never pays off. Before starting with ZFS, I had almost my full SSD as an LVM physical volume (except the bootdisk). Then, I added my external disk cabinet and…
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Keeper Password Manager – a small technical review
Last year, the company I work for signed up for Keeper Enterprise. A good password manager was something I’d been vouching for at work for a while, for a few reasons: Security policies often dictate practises that simply isn’t feasible to follow. Even though sharing passwords is discouraged, sometimes it just can’t be helped. There…
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Jeg flytter…hjem!
Etter å ha vært helt ute i skyen noen år, er nå deler av tjenestene mine på vei hjem igjen. Denne bloggen kjører nå på min nye hjemme-server. Serveren er en Intel NUC, med Intel Core i5-8259U, 2.30 Ghz, med 16 GB minne. Opprinnelig ble den innkjøpt for å kjøre Home Assistant, hjemme-automatiseringen min. Ved…