As we just dipped our pinky into 2023 the articles about Cyber Security in 2023 started to pop up on the internet. Some of them are exploring the the field as a career path and others talk about the new threats and vulnerabilities. I will review what I see about these topics.
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Here is the winter holiday season and a lot of people travel and use apartments, hotel rooms, AirBNB etc. Hidden cameras and sound recording devices are small and stealthy. There is no way to be 100% sure that our room is not “wired”, but we can look around in the network if we use it…
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LVM stands for Logical Volume Manager, it is a tool for file system and disk management on Linux. It can work in different ways like allocating whole devices, but the general usage is putting the LVM on a partition. One of the most common System [Engineer|Administrator] and DevOps interview topic is creating and resizing LVM…
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The UNIX/Linux systems have a powerful tool for scheduling tasks while the computer is running. The daemon that is responsible for initiating the tasks (called cronjobs) is called cron, while the tool that lets us edit the configuration is the crontab. Once we understand the basics of cron we can easily master editing the cron…
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If we installed a Debian WSL distro on our computer, there is a chance that in 6-9 months a new release will come out. We want to keep our system updated, so a distribution upgrade should happen in our WSL ecosystem.
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Linux supports multiple users and groups on the system to log in, create, modify and delete files and folders. System files and folders must be protected from the ordinary users to avoid accidental deletion or modification. Configuration files can contain sensitive data like passwords and certificates. Our home user directory can contain our private secrets…
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Backing up and restoring WSL distros are easy! Simply exporting the stopped distro into an archive file works pretty well. The archive can be moved on an external disk or cloud share. Restoring a backup is importing back the generated archive. Moreover we can add multiple instances of the same distro with exporting then importing…
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I find it much easier to create a venv with the same packages than renaming one. I found magic sed commands and directory traversal scripts, but they did a half work or nothing. I found out that recreating an env is easier and faster.
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The expected outcome is:
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Pre-Installation steps
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I try out the systems I advise to the people. I am a Linux user with a significant background in debugging and solving errors in the system. Being a Debian user since the Woody/Sarge times I welcomed Ubuntu Linux early when it was released the first time. It was a solid, user friendly system for…
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TryHackMe is a great site to learn Cyber Security with practical lab exercises. I just finished their penetration tester path to refresh my knowledge. They provide a nice certificate after finishing the path and a short “test”.
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2022 was a busy year for the IT professionals with the defense against the increased number of security threats. As the world has been hit by COVID-19, and many companies introduced a remote work scheme, the attack surface grew exponentially. Most companies stayed with the hybrid work model after the lockdowns, so the issue will…
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A lot of people are talking about the future of the IT, the traditional operations work, and they are trying to guess whether they will have a job in IT in the future. As I see most IT colleagues feel some uncertainty about their jobs. Different positions (and position names) come and go at the…
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I’ve been using the Keepass password vault for years. I don’t remember when I started to keep my secrets in it, but it can be easily a decade ago. Though I always liked Keepass, and its features are strong, times have changed and I looked for something fresher and more elegant. My choice is KeepassXC.…
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