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While practicing with certificates reqeust using FreeIPA, I came across this duplicated certificates for the first time. This happened because I also practiced the same thing a few weeks ago. Here is how to re-produce this message: [root@client ~]# ipa-getcert request \ -f /etc/vsftpd/certs/cert.pem \ -k /etc/vsftpd/certs/cert.key \ -K ftp/client.lab.example.net \ -D client.lab.example.net Certificate at same location is already used by request with nickname "20201008131445". Because I’m still not familiar yet with FreeIPA on this certificate topic, I turned to Google search and found very useful information on this blog post: Dealing with Duplicate SSL certs from FreeIPA....

Lenovo just released a new BIOS firmware for its ThinkPad P1 Gen 1, v1.32. This version fixes a few issues, as well as update the CPU microcode. Here is the changes from Lenovo’s website. CHANGES IN THIS RELEASE Version 1.32 [Important updates] - Addresses CVE-2020-8696, CVE-2020-8698 - Addresses CVE-2020-8694, CVE-2020-8695 [New functions or enhancements] - Updated the CPU microcode. [Problem fixes] - Fixed an issue where system might hang up at POST when some KVM device was connected....

After many and many weeks, I finally got libvirt working on this Gentoo machine. Before revealing how I’ve fixed this problem, let’s go through what the issues were. On this Gentoo I run Firewalld with nftables as backend. An alternative to nftables is iptables, but since nftables is newer and is becoming the default backend for more and more distribution including Fedora, I think it’s a good thing to adobt it early....

Apart from being an aparent Linux user, I’m also a fan of FreeBSD. A few years ago I challenged myself to perform all work related tasks on a FreeBSD machine for 6 months. It turned out that FreeBSD’s been working out quite well as a general usage work desktop. Today, I’d like to share a quick solution to a small annoying issue that may or may not affect you when you’re using FreeBSD....

“Bad boys, whatcha want. Watcha want, whatcha gonna do when the root is full?” Actually, what are you gonna do when the journald taking up lots of space? For example, during the operating system upgrade on my desktop, the free space on / is not sufficient. Error Summary ------------- Disk Requirements: At least 5643MB more space needed on the / filesystem. So, I check how much space the systemd-journald log was consuming:...

Just found out that Dell just released the a new firmware, 1.10.1, for the Latitude 7400 series. This firmeware was released since 10 Sep 2020. Fixes: Firmware updates to address the Intel Technical Advisory INTEL-TA-00404 (CVE-2020-8758). Fixed the issue where an error message stating Key Mapping for Console Redirection BIOS is displayed before the Dell logo screen, Enhancements: Updated the Embedded Controller Engine firmware. I’m running Fedora 32 on this laptop....

Nothing excites me than being able to solve a problem on Linux just before bed time. Well, there could be other things, but I couldn’t think of any right now. Right now, I’m preparing for my next exam - Red Hat Certified Specialist in Identity Management (EX362), and one of the topics is about setting up automated home directory using IdM (or IPA). I tried to follow the course material, but I had troubles getting it working....

ZFS is one of my favorite file systems. I use it at home on my nas server (running FreeBSD) as well as my Fedora 32 desktop. Today, I’m going to show you (and my future self) how to replace a (faulty) disk in a Zpool. The server I’ll be working on is nas2 and the pool is tank. List the status of the current pool. Password: root@nas2:~ # zpool status tank pool: tank state: DEGRADED status: One or more devices could not be opened....

Just a few a days ago, I wrote a blog post about Pairing Bluetooth Mouse on Command Line on a Fedora laptop. So why do I need to write another post about doing the same thing on Gentoo? Well, as it turned out, I need a bit more than just turning on the bluetooth service and pairing the mouse. My Gentoo’s installation is very minimal, and I think this gives me an excuse to document on how I’d solve or get this working on Gentoo....

One of my virtual machines runs out of disk space in the root (/) partition, and I want to remove the /home partition and using this free space to resize the root partition. Nowadays, for any serious systems, I’d use LVM with XFS on top. However, for this test VM, I have a virtual disk with 4 partitions without LVM. Managing partition on LVM is much easier than working the disk partition directly....