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The Evolution of FritzFrog: A Persistent Threat Exploiting Log4Shell

In the constantly changing realm of cybersecurity risks, the FritzFrog botnet stands out as a formidable and adept opponent. Recent developments reveal a new variant of FritzFrog leveraging the Log4Shell vulnerability, marking a concerning shift in its tactics. This article explores the evolution of FritzFrog, its advanced techniques, and the imminent threats it poses to…

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Useful Splunk Queries and Windows Event Log

In the world of managing and analyzing data, nothing beats efficiency and precision. Splunk, a leader in log analysis, relies on the Search Processing Language (SPL), a versatile tool that excels in querying, analyzing, and deriving insights from colossal datasets. Understanding SPL: The Language of Splunk At its essence, SPL is a domain-specific language designed…

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Hard Link vs. Soft Link in Linux: When to Choose Each

In the Linux file system, managing files efficiently often involves the use of links. Two common types of links are hard links and soft links (symbolic links). These two mechanisms serve different purposes and have their own set of advantages and use cases. In this article, we’ll explore the differences between hard links and soft…

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Analyzing AWS VPC Flow Logs with Elasticsearch, AWS SQS, and Filebeat

AWS VPC Flow Logs are a goldmine of network data, providing valuable insights into traffic patterns, security threats, and network performance within your Amazon Virtual Private Cloud (VPC). To effectively analyze this data, many choose to utilize Elasticsearch, an open-source search and analytics engine. In this blog post, we’ll walk you through the process of…

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The Versatility of Symbolic Links in Linux: A Guide with Examples

In the world of Linux, symbolic links, often referred to as “soft links,” are a valuable tool for creating flexible references to files and directories. In this article, we’ll explore what symbolic links are, delve into real-world examples, and learn how to find multiple symbolic links pointing to the same file within your filesystem. Understanding…

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The Power of Hard Links in Linux: Unveiling Their Secrets

Have you ever wondered how Linux efficiently manages files while optimizing disk space usage? The answer lies in a powerful and often underappreciated feature called hard links. In this article, we will explore what hard links are, provide real-world examples, and learn how to find multiple hard links pointing to the same file in your…

VM Import/Export to AWS

By: Willio Jean Paul Overview This will take you to the steps to create a copy of an on-premises server on AWS as an Amazon Elastic Compute Cloud (EC2) instance.  We will use the AWS Command Line Interface (AWS CLI) to run a VM Import/Export job.  Upon completion, a copy of the server is created…

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Accelerating transfer of small files with rsync and xargs

Rsync is a great tool for transferring and synchronizing files between computers/servers. It is usually available on the most popular linux distribution. If not installed yet, you can typically use the package manager for installation. Rsync’s drawback lies in its sequential transfer over a single remote connection, resulting in lengthy transfer times for large amount…