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Commifying Numbers in Linux: Not as Easy as it Looks

Today I had a need to process large numbers of PostgreSQL database tables and report how many rows were in each.  Once I had that information, I needed to do some additional math on this data and then print it out in a nice formatted manner.  And for reasons I won't go into, I had to use shell. But it was all very trivial...until I got to that last part.  It involves commification. Is that even a word?  My browser's spell...

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Commifying Numbers in Linux: Not as Easy as it Looks

Free Udemy Courses! Our Community Resource Just Keeps Going

A while back, we alerted you to a thread on LowEndTalk where community member - and now moderator! - @Arkas shared free courses from Udemy. That thread was started in September and the community is st...

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Free Udemy Courses!  Our Community Resource Just Keeps Going

OpenSSH Suffered a "Near Miss" But is Now Post-Quantum

According to the change log, OpenSSH 9.0 suffered a "near miss" - a potential vulnerability that was found and fixed before anyone could attempt to exploit it: "Near miss in sshd(8): fix an integer ov...

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OpenSSH Suffered a

Ramdisks: Why You Might Enjoy One, Plus a Performance Puzzler

A ramdisk - or if you prefer, RAMdisk - is a method of taking a section of memory and treating it as disk.  If you think about it for a moment, the pros/cons should be obvious: RAM is much faster than...

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Ramdisks: Why You Might Enjoy One, Plus a Performance Puzzler

LowEnd Benchmark Wars Heat Up!

Ok...just kidding.  There are no benchmark wars. But if you're into benchmarking, you should check out LowEndTalk member @Liso's fork of the famous YABS script, which is getting some discussion over t...

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LowEnd Benchmark Wars Heat Up!

Here Today, Gone When You Exit: Proper Tempfiles in Shell Scripts

In the course of my career, I've periodically come across code like this in shell scripts: TEMP_FILE=/tmp/tempfile Or sometimes, slightly more elegantly: TEMPFILE=/tmp/tempfile.$$ The problems with th...

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Here Today, Gone When You Exit: Proper Tempfiles in Shell Scripts

Tutorial: Moving a Proxmox VM to Different Disk

I've setup a home virtualization lab using ProxMox, which is a free and very powerful virtualization host. Prior to ProxMox, I tried: VmWare ESXi: No clones in the free version?  See ya. XCP-ng: Got s...

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Tutorial: Moving a Proxmox VM to Different Disk

Run a $8 Million Mainframe at Home for FREE!

In the mid-70s, my father worked in the American automotive industry in Michigan, and I visited him at work as a small boy.  He took me into the "computer room" (as they used to call datacenters) and...

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Run a $8 Million Mainframe at Home for FREE!

Are You Recyling Old Hardware for Your DIY? The Environment Isn't Thanking You

Do you have a home file server?  Maybe because you want to serve media files to your TV/Roku/etc., share info among family members, backup your devices, etc.  If so, what do you use? LowEnders are usu...

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Are You Recyling Old Hardware for Your DIY?  The  Environment Isn't Thanking You

FREE Root Shells on Linux Servers Thanks to polkitd Vulnerability

A new vulnerability that affects many Linux systems has been revealed: Pwnkit. This attack uses a vulnerability in polkitd to allow any user to escalate his privileges to root.  There are patches for...

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FREE Root Shells on Linux Servers Thanks to polkitd Vulnerability

RHEL 9 Goes Beta

Now that (hopefully?) the CentOS Stream debacle and the subsequent rise of Alma and Rocky Linux is behind us, there's news from RedHat that RHEL 9 has gone beta.  Is this the love child that will fina...

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RHEL 9 Goes Beta

Why Do My Files Have Quotes in the Them When I Use 'ls'?

If you've upgraded to a recent Linux version, you may have noticed a change in the output of your ls commands. Specifically, files that have spaces or other special characters in them are quoted. For...

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Why Do My Files Have Quotes in the Them When I Use 'ls'?

RackNerd Giveaway Video #2 Now on LowEndBoxTV: How to Get Free Udemy Courses!

Would you like some awesome technical education for free? Who wouldn't! Well-known education provider Udemy periodically offers many of their courses for free and LowEndTalk has a thread dedicated to...

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RackNerd Giveaway Video #2 Now on LowEndBoxTV: How to Get Free Udemy Courses!

LowEndSetup: Initializing and Reinitializing Your VPS

If you frequently setup new VPSes or re-initialize them, you may find yourself typing the same commands over and over. There are various technologies to alleviate these hassles and get your environmen...

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LowEndSetup: Initializing and Reinitializing Your VPS

Locking Down Access to Your VPS

There are a number of ways you can restrict access to your VPS. Passwords (specifically, good passwords) is the most basic method. Restricting access to ssh keys only is better. You can use Google Aut...

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Locking Down Access to Your VPS

How to Audit Every Command Run on Your Linux System

Periodically I've had auditors come to me and say "can you tell me what this user on this system did between such-and-such dates/times" and my answer is usually no. By default, Linux systems don't log...

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How to Audit Every  Command Run on Your Linux System

CloudLinux Announces Support for CentOS 8 Through 2025

When IBM announced that they were changing CentOS and introducing "CentOS Stream," one minor detail was a sharply curtailed lifespan for CentOS 8, the final "Classic" version.  IBM has announced that...

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CloudLinux Announces Support for CentOS 8 Through 2025

Udemy Has Free Courses on Python, Linux, SQL, Machine Learning, and More!

Training powerhouse Udemy frequently releases free courses for limited time periods. Obviously, their hope is that you'll try out their instruction, like what you see, and then purchase additional cou...

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Udemy Has Free Courses on Python, Linux, SQL, Machine Learning, and More!

Painless MariaDB Replication with Galera Clusters

Galera is MariaDB's multi-master replication technology which makes it a snap to setup highly-available multi-node MariaDB clusters.  In this tutorial we'll walk through setting up a cluster and also...

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Painless MariaDB Replication with Galera Clusters

Hostigger is Now Hostiger and Has Ferociously Cheap VPS Offers for You! (Kansas City or Istanbul)

Hostigger is now Hostiger and they're bringing some awesome offers: Get a 2GB KVM with 40GB of disk and 2TB of traffic for only $4.99/month! Take 30% off if you buy annually! Larger sizes available to...

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Hostigger is Now Hostiger and Has Ferociously Cheap VPS Offers for You! (Kansas City or Istanbul)

CloudServer Brings Us 2GBLinux KVMs for Only $1.99/Month (on Annual) or Windows KVMs for $3/Month!

We last saw CloudServer back on July 4, 2021.  Now they're back with some more very cool offers for cheap VPS systems - either Linux or Windows: Get a 2GB Linux KVM for only $4/mo (or $1.99/mo on an a...

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CloudServer Brings Us 2GBLinux KVMs for Only $1.99/Month (on Annual) or Windows KVMs for $3/Month!

Debian 11 "Bullseye" Released Today!

Debian 11, code-named Bullseye, was released today.  If it's not already available on your favorite VM provider's panel, I suggest you own a thread on LowEndTalk and complain bitterly. Major new featu...

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Debian 11

iKoula Offers Hosted Synology NAS Servers

Have you used a Synology NAS at home? Do you want one in the cloud? For those unfamiliar, Synology makes a line of inexpensive NAS systems aimed at both the home and small business markets.  They have...

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iKoula Offers Hosted Synology NAS Servers

Get Notified via Email Whenever Someone Logs In To Your VPS

In this tutorial we'll show you how to configure your VPS so that every time someone logs in, you receive an email alerting you to this fact. This is kind of a "lowend intrusion detection system" thou...

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Get Notified via Email Whenever Someone Logs In To Your VPS

Boomer.Host: Free Stickers with Every Order! $7.95/Year for a 1GB VPS!

Hello, Boomer.Host! Some hosts are deadly serious when it comes to their names and some prefer a bit of humor and I don't have to tell you which category Boomer.Host falls into.  However the proprieto...

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Boomer.Host: Free Stickers with Every Order!  $7.95/Year for a 1GB VPS!

How to Stiff-Arm Brutes and Protect Your Server with Fail2Ban

Bruce force attacks are attempts to guess common passwords by repeatedly trying to login to your server.  SSH is the most common target but FTP, IMAP, POP3, and other password-based systems can be tar...

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How to Stiff-Arm Brutes and Protect Your Server with Fail2Ban

Tarsnap: Cloud Backups for the Truly Paranoid

Tarsnap is a cloud backup company that emphasize strong cryptography. It's the brainchild of Dr. Colin Percival, former FreeBSD security officer. Its motto is "online backups for the truly paranoid" a...

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Tarsnap: Cloud Backups for the Truly Paranoid

Celebrate Black Friday in July with LosAngelesVPS's 50% Off Sale!

LosAngelesVPS is back!  We last had them on back on February 26, 2021.  This time they've got some great VPS offers with their Black Friday in July offer! Get  a 1GB VPS with unmetered bandwidth and 1...

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Celebrate Black Friday in July with LosAngelesVPS's 50% Off Sale!
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