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Vincent's Blog

Pleasure in the job puts perfection in the work (Aristote)

Category: Firewall

Hardening your openbsd machine.

Posted on 2018-07-13 12:42:00 by Vincent in OpenBSD Firewall

You have selected OpenBSD because this is one of the most secured OS (maybe the most secured :-) ), but people around you ask to go further. Your current machine is directly facing internet and some people fear that this machine could be compromised. In this blog I will explain what I did to secure one of my machine.

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Log2table to protect your machines from intrusions

Posted on 2017-05-27 20:41:00 by Vincent in OpenBSD Firewall

Log2table allows you to continuously monitor your logfiles. You can trigger actions when a specific message comes in your audited logfiles or when a specific number of occurences are present.

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Block bad visitors with PF

Posted on 2016-11-06 17:04:00 by Vincent in OpenBSD Firewall

Those days, when you fire-up a new machine, it takes few hours that bad persons are trying to connect to your machine via ssh, try default URL with default passwords, ... This post will explain how OpenBSD can easily helps you to ban those persons out of your machine for quite a long time.

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How I've tuned OpenBSD to become my house's firewall

Posted on 2016-07-14 15:25:00 by Vincent in OpenBSD Firewall

In this post I'll explain what I did to filter the internet access in my house. You will see that the access is based on simple rules and is not the same for every users.

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Build a Read only system with OpenBSD

Posted on 2016-07-12 12:06:00 by Vincent in OpenBSD Firewall Nas

When you have machines that must run 24x7, you must take into account the problem of powercut. To my eyes there is 2 possible solutions: - use an UPS - have a readonly operating system In this post, I'll describe how you can easily transform your OpenBSD machine into a Read-only system.

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