Not long ago I noticed this message when booting one of my home systems: "TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x22 (or later)" I wasn't having any issues with the system, but this sounded like something I should correct. But doing a microcode upgrade sounded risky - couldn't brick my CPU? And while an apt-cache search quickly found a package called intel-microcode, it was listed as n...
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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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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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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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In the world of database systems, SQL has been the king since it took off in the early 80s. It was conceived, developed, and codified in the 1970s but really hit its stride once developers had worked...
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In a previous tutorial, we showed you how to setup Galera replication for MariaDB so you could have multi-node, multi-master clusters. We also saw how MariaDB painlessly replicates data. In this tut...
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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...
Read MoreRecently I was doing some discovery at work of some systems we inherited. I didn't yet have access but wanted to determine what type of OS was involved so I could coordinate with the proper teams. Yo...
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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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When new provider submit offers, one of the many checks we perform is to see if their WHMCS license is valid (assuming they're using WHMCS of course). Generally about once a month we get an offer from...
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With the rise of Chia farming, many hard drives provisioned in LowEnd dedicated servers are arriving having suffered phenomenal (ab)use. Sure, your dedi provider is usually on the hook to replace if...
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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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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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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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Dropbox is a folder synchronization product that takes a folder (eponymously called Dropbox) and makes sure it's identical across all devices. This folder is also available on the web and there are r...
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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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This article was contributed by the folks at RackNerd - a provider of shared hosting, reseller hosting, VPS hosting, dedicated servers, DRaaS, colocation, and more. If you are looking for an affordabl...
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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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This article was contributed by the folks at RackNerd - a provider of shared hosting, reseller hosting, VPS hosting, dedicated servers, DRaaS, colocation, and more. If you are looking for a VPS with f...
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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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Hosting a game server may not be easy through a terminal, though even experienced cannot handle the game servers through Command Line Interface when hosting a large number of game servers. In this cas...
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This article was contributed by Dustin Cisneros at RackNerd, a web hosting and infrastructure as a service provider which was recently voted #1 by the LowEndTalk community! If you are looking for a Li...
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If you've wanted to run your own DNS server but were a bit intimidated by BIND, this is the video for you. We take you through installing and configuring a 2-node DNS server setup using NSD, including...
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If you need a highly available database configuration where the loss of one node doesn't result in loss of service and changes on one node are replicated to other nodes, you would probably reach for M...
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Like many of my fellow LowendTalk readers, I sometimes post images on LET and other boards. To do that, I need an image hosting service. Going through the work of logging into a web page, uploading...
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The ability to run programs automatically is one of the great liberating powers of computers. In Unix, it's common for users to schedule jobs using cron or at (or with systemd, timers). But what if yo...
Read MoreSince very early in its history, Unix systems have supported file and directory permissions. This security mechanism allow users to make their files private from other users, and for administrators to...
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