A long-running app server was sitting on nearly 2 GB of swap with a swappiness of only 30. Nothing felt slow, but the number looked wrong. This is a walkthrough of how I traced it from “the swap looks full” to a concrete one-line fix in the service definition — and a reminder that resident memory only tells you half…
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Symptoms New SSH connections hang immediately after the TCP connection is established. The client shows the connection open and then stalls before the server banner (e.g. stops right after Local version string … with ssh -vvv). The same hang occurs over loopback (ssh user@127.0.0.1), confirming the problem is local to the host, not the network or the client. sshd logs…
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Modernizing a Legacy WordPress Database to InnoDB and utf8mb4 Many long‑running WordPress sites still use a mix of MyISAM tables and legacy charsets such as utf8/utf8mb3 or even latin1_swedish_ci. Updating these to InnoDB and utf8mb4 improves reliability, Unicode/emoji support, and consistency across environments. This article describes a practical, repeatable process using a sample database named example, but the same steps…
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Using NVM (Recommended for Developers) Node Version Manager (NVM) lets you install and switch between multiple versions of Node.js and npm on the same machine — useful when different projects require different Node versions. Download and run the NVM installation script: curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash Apply the changes to your current shell session: source ~/.bashrc Install the latest Long-Term…
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There are a couple of valid methods, but don’t do what I did and mix them. If you install Duo two-factor authentication for Unix systems. There are four files that are needed and differ in the approach on how they are installed pending on the path you had taken. Once again, I stress, don’t mix them. The four files, pam_duo.so,…
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Nearly 20 years ago, I came upon a VB script that would recursively traverse through a folder tree and create a M3U playlist for each folder respectively. I slightly modified the script over the years to fit my requirements, and have since ported it to PowerShell. This script will look for MP3 and WMA files and create a M3U playlist…
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If you’d prefer not to sign in to Windows with a Microsoft account, you can switch to a local account at any time. Once you’ve made the switch, the option to remove the Microsoft account entirely will become available. Step 1: Switch to a Local Account Open Settings with Win + I Go to Accounts → Your info Under Account…
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ProjectSend is a self-hosted file sharing application for users or clients that avoids handing control over to a third-party service. It runs on standard web infrastructure, keeps data local, and focuses on managing uploads, access, and downloads in a straightforward way. The accompanying install script exists for the same reason. Instead of locking the system to a specific PHP release…
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When installing Go (Golang) on Enterprise Linux systems, the default package repositories are usually behind the official Go release cycle. This can cause compatibility issues when compiling modern projects or building statically linked binaries. This guide walks through a proper, official installation method using the Go project’s own binaries. The result is a clean, system-wide Go installation that is safe…
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This shell loop queries Proxmox for the IPv4 addresses of all currently running virtual machines by leveraging the QEMU Guest Agent. It first lists running VMs using qm list, extracts their VMIDs, and then iterates over each one. For every VM, the command qm guest cmd <vmid> network-get-interfaces asks the guest agent inside the VM to report its network interfaces…
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What to Fix After Migration — and Best-Practice Proxmox VM Settings Migrating virtual machines from VMware to Proxmox is usually straightforward: convert the disk, boot the VM, and confirm it runs. But a VM that boots is not necessarily a VM that is correct, stable, or future-proof. This article documents real-world migration issues and the correct cleanup process after moving…
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After upgrading to Windows 11 24H2, users may encounter issues accessing network shares on other devices such as Synology NAS systems. When attempting to access shared folders, the following error message appears: You can’t access this shared folder because your organization’s security policies block unauthenticated guest access. This issue occurs because Windows 11 24H2 implements stricter security policies that block…
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In modern Linux systems, both users and groups are assigned numeric IDs. Users have UIDs, and groups have GIDs. By convention, system accounts typically use IDs below 1000, while regular user accounts use IDs 1000 and above. When a user account is created, a corresponding group with the same name is usually created as the user’s primary group. To identify…
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Installing Jellyfin on Ubuntu If you’ve been running Jellyfin on a RHEL-based Linux distribution like Rocky Linux, you’ve probably run into a frustrating limitation: the available packages are often outdated. This becomes a real problem when clients like the Fire TV Stick require a recent version of Jellyfin to function properly. Ubuntu, on the other hand, supports the latest packages,…
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There is an mp4 video that will play flawlessly in some applications and not others. Using the tools of ffmpeg, I was able to determine the problem and remove it. By executing the following command, the problem(s) became easily identifiable. ffprobe -hide_banner -analyzeduration 1G -probesize 1G -i bad.mp4 The truncated results of the output are below. This is the first…
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The following solution was tested on a Windows 10 Professional workstation joined to an Active Directory domain. When a domain-joined PC loses its secure channel with the domain controller, you’ll see this error at login. Rather than removing and re-joining the machine to the domain (the traditional fix), you can resolve it quickly using PowerShell — no reboot required. Step…
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While using rsync on ESXi 7 to copy files and directories from one ESXi datastore to another remote ESXi datastore, the screen fills with “rekeyed outbound cipher rekeyed inbound cipher” messages about every 10 seconds. There is a way to fix this. There is a setting in /etc/ssh/sshd_config that I commented out and changed to RekeyLimit default none. # vPP…
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