The CZ.NIC Staff Blog

Sentinel View report – February 2023

In February, we saw about a 10% decrease in the number of unique attackers, but they were more active. Usually, we see attackers come and go, but in February, although it was fewer attackers in total, we had on average, more attackers blocked every day. This means that those attackers stayed active longer than in January.

Sentinel View Turris Turris project

Michal Hrušecký

12.3.2023 at 10:49

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The 20th annual Safer Internet Day – a look back

Safer Internet Day is celebrated in more than 180 countries around the world, always on the second Tuesday of February. This year, this day fell on February 7 and was celebrated for the 20th time. The coordinator of this day for the Czech Republic is the National Safer Internet Center, managed by the CZ.NIC Association.

Safer Internet

Martin Kožíšek

7.3.2023 at 12:21

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Sentinel View report – January 2023

In January, we encountered slightly more attackers than in December. But overall, behavior stays the same. The number of attackers per device and victims per attacker didn’t change much. Looking back at our first report, we also had about the same amount of victims per attacker but more attackers per device. The trend for the last three months is to target about 20 Turris devices on average if you are an attacker.

Sentinel View Turris project

Michal Hrušecký

8.2.2023 at 10:47

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Sentinel report

Cyber security feature measurment Security statistics Turris Turris MOX Turris Omnia Turris project

Filip Hron

22.12.2022 at 9:15

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Why we improve e-mail security and why it may break message redirection

In the Turris project, we are currently improving e-mail communication security. If you use our infrastructure for sending notifications from Turris devices, it also applies to you. It strengthens your protection but may “break” the redirection of messages to another address.

DKIM DMARC DNSSEC e-mail Security SPF Turris project

Lukáš Jelínek

19.12.2022 at 11:50

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BIRD Journey to Threads. Chapter 4: Memory and other resource management.

BIRD is mostly a large specialized database engine, storing mega/gigabytes of Internet routing data in memory. To keep accounts of every byte of allocated data, BIRD has its own resource management system which must be adapted to the multithreaded environment. The resource system has not changed much between v2 and v3, yet it deserves a short chapter.

Maria Matějka

17.10.2022 at 10:00

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Sentinel View v1.2.0: Better Check Your Passwords Tonight

With all the data we collect (as you can read in details in my previous article) the challenge is not to figure out what to do with the data, but the implementation of the idea itself. When we have access to so many passwords, it was only a matter of time to implement some kind of search for passwords that show up in incident records. And this one wasn’t so complex either. We bring to you today a Password Checker with brand new release v1.2.0 of Sentinel View.

password protection Sentinel View Turris MOX Turris Omnia Turris Shield

Filip Hron

14.9.2022 at 15:20

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Dynamic Firewall View in Sentinel View v1.1.0

You may have read some of our previous articles about Turris Sentinel and it’s companion – Sentinel View. Today we would like to share yet another cool feature that is available and that gives you even better feel how dangerous the internet really is.

Honeypot Sentinel Sentinel View Turris MOX Turris Omnia Turris project

Filip Hron

5.9.2022 at 14:25

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uCollect is dead, long live Turris Sentinel!

If you follow what we do, you might have noticed that we recently announced the end of Turris OS 3.X. It was first released in 2016 and it was with us for quite some time. But in the end we managed to debug the migration to Turris OS 5.x and migrated everybody over. But this blog post is not about that. This post is about deprecation one of the parts, that was replaced by a newer and better system – uCollect.

Sentinel Turris project

Michal Hrušecký

8.4.2022 at 11:12

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STOPonline.cz in 2021

If we try to compare the past two years, we can say that in terms of the number of processed incoming reports, the STOPonline.cz line was much more successful, if we can call it that.

Kateřina Vokrouhlíková

16.3.2022 at 10:57

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