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LHB Linux Digest
LHB Linux Digest #25.09: Vim Tips, TCP Proxy, Vagrant Triggers and More
By Abhishek Prakash • 16 May 2025 View in browser
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LHB Linux Newsletter

Hey there,

In the previous edition, I asked your opinion on the frequency of the newsletters. Out of the all the responses I got, 76% members want it on a weekly basis.

Since we live in a democratic world, I'll go with the majority here. I hope the rest 24% won't mind seeing the emails once each week ;)

Here are the highlights of this edition :

  • TCP Proxy with socat
  • Out of memory killer explained
  • Nerdlog for better log viewing
  • And regular dose of tips, tutorials and memes

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📖 Linux Tips and Tutorials

  • Understand what is out of memory killer.
  • Learn how ddrescue command can recover data from failing disks.

A collection of Vim tips and tutorials for all sorts of users.

Start Learning Vim [Tutorial Series]
Start learning Vim by following these Vim tips for beginners and advanced users.
Linux Handbook •Abhishek Prakash

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📚 Docker and DevOps

Explore Vagrant triggers, they help you automate virtual machines events.

Experiment with TCP Proxy with socat.

Set Up a Basic TCP Proxy with socat
socat is a handy utility that lets you establish bidirectional data flow between two endpoints. Let’s see how you can u…
Linux Handbook •LHB Community

💡Quick terminal tip

🚧
Please be extra careful while deleting/rename files using wild card.

You can use the Perl-based rename command, which usually appears in Debian-based distributions like Linux Mint, to rename multiple files in Linux. For example, as per the man page, you can translate uppercase names to lower in the current directory using:

file-rename 'y/A-Z/a-z' ./*

Similarly, you can replace all the spaces in a file name in the current directory to underscore using:

file-rename 'y/ /_/' ./*

Instead of the ./* specify the path to the directory that contains the files to be renamed.

🛠️ Tool discovery

PortNote is an open-source, self-hosted network service discovery tool that helps you keep track of services running on your network.

GitHub - crocofied/PortNote: Keep track of used ports
Keep track of used ports. Contribute to crocofied/PortNote development by creating an account on GitHub.…
GitHub •crocofied

Nerdlog is a lightweight, terminal-based log viewer designed for remote multi-host monitoring with a timeline histogram, offering a quick, setup-free alternative to centralized logging systems like Graylog and Kibana.

GitHub - dimonomid/nerdlog: Nerdlog: fast, remote-first, multi-host TUI log viewer with timeline histogram and no central server
Nerdlog: fast, remote-first, multi-host TUI log viewer with timeline histogram and no central server - dimonomid/nerdlo…
GitHub •dimonomid

📰 Linux news that matters

  • Microsoft has announced a Linux distribution service for its Azure cloud service, making it easier for Linux distributors to release first-class Linux distros on Azure.
  • Red Hat is gearing up for the next major release of its enterprise Linux distribution, RHEL 10.
  • Edera and CIQ are advancing Linux security with hardened tools designed for the modern era of cyber threats, focusing on stronger isolation and proactive threat defense.
  • Sysdig has donated its Stratoshark project to the Wireshark Foundation, aiming to enhance open-source cloud security analysis and visibility.

😂 Geek humor

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