2019

A NomadBSD look for OpenBSD

       215 words, 2 minutes

The other day, I stumbled upon NomadBSD ; a live system for USB drives. I don’t use FreeBSD… but I liked to look of that “(…) desktop system that works out of the box (…)”. So I decided to give a little make up to my already-running-out-of-the-box OpenBSD.

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Renew the Let’s Encrypt certificate for Synology using SSH

       52 words, 1 minutes

When for some reasons, the Let’s Encrypt certificate has not be renewed on your Synology and those bloody stupid Web browsers won’t let you connect to the DSM for “Security Reasons”, you can still count on SSH to solve the problem.

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Protect the ESXi virtual machines with OpenBSD

       813 words, 4 minutes

I own a server at Online.net which now runs VMware ESXi free edition. The thing is VMs have to access the Wild Wild Web and provide public services while still being protected. So let’s configure OpenBSD to do so.

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Enforce IP filtering on ESXi

       475 words, 3 minutes

My ESXi is provided by Online.net and accessible from Internet. Reading the VMware documentation, one can see: ESXi includes a firewall that is enabled by default. At installation time, the ESXi firewall is configured to block incoming and outgoing traffic, except traffic for services that are enabled in the host’s security profile. But the default security profile is way too loose! So here’s how to harden it a bit.

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Upgrade VMware ESXi 6.5 to 6.7 using the esxcli console tool

       410 words, 2 minutes

I decided to run VMware ESXi on my Online/Scaleway Start-2-L server. Using the online.net installer, you can “only” get ESXi 6.5.0d (64BITS). So here’s how to upgrade to 6.7.

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