A small tool to view real-world ActivityPub objects as JSON! Enter a URL
or username from Mastodon or a similar service below, and we'll send a
request with
the right
Accept
header
to the server to view the underlying object.
{
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{
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"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"blurhash": "toot:blurhash",
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"@id": "toot:focalPoint"
},
"Hashtag": "as:Hashtag"
}
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"id": "https://mastodon.social/users/appassionato/statuses/113531011828663432",
"type": "Note",
"summary": null,
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"published": "2024-11-23T07:09:21Z",
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"content": "<p>Mastering Linux Security and Hardening: A Practical Guide to Protecting Your Linux System From Cyber Attacks 3e by Donald A. Tevault, 2023</p><p>Gain a firm practical understanding of how to secure your Linux system from intruders, malware attacks, and other cyber threats.</p><p>The third edition is an updated, comprehensive introduction to implementing the latest Linux security measures, using the latest versions of Ubuntu and AlmaLinux. </p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://a.gup.pe/u/bookstodon\" class=\"u-url mention\">@<span>bookstodon</span></a></span> <br /><a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a> <br /><a href=\"https://mastodon.social/tags/Linux\" class=\"mention hashtag\" rel=\"tag\">#<span>Linux</span></a> <br /><a href=\"https://mastodon.social/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a></p>",
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"name": "In this new edition, you will learn how to set up a practice lab, create user accounts with appropriate privilege levels, protect sensitive data with permissions settings and encryption, and configure a firewall with the newest firewall technologies. You’ll also explore how to use sudo to set up administrative accounts with only the privileges required to do a specific job, and you’ll get a peek at the new sudo features that have been added over the past couple of years. You’ll also see updated information on how to set up a local certificate authority for both Ubuntu and AlmaLinux, as well as how to automate system auditing. Other important skills that you’ll learn include how to automatically harden systems with OpenSCAP, audit systems with auditd, harden the Linux kernel configuration, protect your systems from malware, and perform vulnerability scans of your systems. As a bonus, you’ll see how to use Security Onion to set up an Intrusion Detection System. By the end of this new edition, you will confidently be able to set up a Linux server that will be secure and harder for malicious actors to compromise. \nWhat you will learn Prevent malicious actors from compromising a production Linux system Leverage additional features and capabilities of Linux in this new version Use locked-down home directories and strong passwords to create user accounts Prevent unauthorized people from breaking into a Linux system Configure file and directory permissions to protect sensitive data.",
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