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Learn how to resize images from the command line on MacOS using built-in tools like sips and third-party tools like ImageMagick for various use cases.

Learn how to uninstall a Homebrew formula along with its dependencies on MacOS, ensuring a clean removal and freeing up disk space.

Learn about the optimal UEFI BIOS settings for the Asus ROG STRIX Z590-E GAMING WIFI motherboard, including configurations for RAM, power management, virtualization, and more.

Discover the availability of the official CentOS 8 Stream Docker image on quay.io, and learn about the transition from Docker Hub and its implications.

Learn how to remove geo-localization and EXIF data from photos using ImageMagick on Linux, ensuring privacy before sharing images publicly.

Learn how to run JMX monitoring in a Docker image, including the necessary Java parameters and configuration for connecting to JMX consoles like VisualVM or Jconsole.

Learn about the creation and optimization of a CentOS 8 Stream Docker image, including steps to squash the image and ensure it is suitable for production workloads.

Discover the age and update frequency of various official Docker images, and learn why it’s important to keep your base images up to date for security and performance.

I had stragne statistics on one memcached servers. I had to look what it’s doing there. I found such commands that may be used to sniff, extract and make statistics from running memcached server. Debug GET commands tcpflow -c dst port 11211 | cut -b46- | grep ^get cut command will remove 46 bytes at beginning of every string (src, dst, port). You may need to adjust numeric parameter for cut to leave commands only. Output should look like: ...

It happen to me all the time that one of developers notifies me about some kind of problem that I can’t confirm from my account. Sometimes it was because of bad ssh keys configuration, other times file permissions, mostly such stuff. It’s sometimes convenient to “enter into someone’s shoes” to see what’s going on there. If you’re root on machine you may do that like this: su developer - Easy one but that’s not enough for all cases. When you use bastion host (or similar solutions) sometimes users have connection problems and it’s harder to check. When such user have ForwardAgent ssh option enabled you may stole this session to check login problems. After you switch to such user, you may wan’t to hide history (it’s optional 😉 ) - disable history like that: ...