Oleg

Oleg

03
Oct
My Take on CVE-2025-10725 (Red Hat OpenShift AI)

My Take on CVE-2025-10725 (Red Hat OpenShift AI)

Have you heard about the CVE-2025-10725 already? If not, let me walk you through. This vulnerability was recently found in
2 min read
17
Feb
Copying multi-arch image from DockerHub to Quay.io

Copying multi-arch image from DockerHub to Quay.io

$ skopeo login quay.io $ skopeo copy --multi-arch all docker://<organization>/<repo>:latest docker://quay.io/<
14
Oct
Navigating Complex Systems: A Small Conversation with a Skilled Penetration Tester

Navigating Complex Systems: A Small Conversation with a Skilled Penetration Tester

I recently had a chance to catch up over coffee with my colleague who is quite skilled in penetration testing.
2 min read
15
May
How to preserve backslashes when using sed command

How to preserve backslashes when using sed command

Today I faced an interesting task. I wanted to generate a bunch of yaml files with different names to test
1 min read
12
Apr
Tar general arguments

Tar general arguments

Can't remember how to create or extract an archive? This short article can help you to refresh your
2 min read
05
Oct
Running a container with Nmap in Kubernetes/OpenShift

Running a container with Nmap in Kubernetes/OpenShift

Have you ever faced a situation when you need to check which ports are open in the pod with your
2 min read
03
Oct
Sniffing traffic on a pod in Kubernetes/OpenShift

Sniffing traffic on a pod in Kubernetes/OpenShift

It's such a pain when you have a container without root permissions and you can't install
1 min read
13
Apr
Multiple dispatch in python

Multiple dispatch in python

“It would be cool to have the same function name, but to have different code executed depending on what is
2 min read
30
Jul
A bit of Knowledge Management

A bit of Knowledge Management

“Capture, reuse and improve” principle, how to improve knowledge management in your team and how to avoid possible problems
4 min read
17
Jun
Test cases: decide what to automate in 4 steps

Test cases: decide what to automate in 4 steps

I think every tester faces a situation when he gets a new feature, then he identifies test cases (or test
2 min read