Tag: Linux
How To Filter Spam Email
Introduction
Email. We all use it, and we all have spam issues from time to time. Whether you use Gmail, Outlook, Hotmail, Apple Mail, or another type of webmail software, spam is an annoyance that robs us of precious time that should be made available for more worthwhile pursuits. This article will demonstrate multiple methods for filtering out a significant portion of bothersome and inconvenient spam from our inbox.
How To Set up and Use Active Directory
Introduction
This article will discuss the importance of Active Directory (AD), along with what it is, what it does, installation, and configuration. We must state in advance that there have been entire books written about AD. While we will touch on the significant aspects of its functionality, more in-depth information can be found online.
How To Install and Configure Vault
What is Vault?
Vault protects and secures access to multiple types of confidential data. It stores and manages sensitive password information, API keys, and access tokens that exist in a low trust environment and generates dynamic access to authenticate users to ensure they have authorized ingress and availability to a file, location, service, or application.
Threat Stack Intrusion Detection System
Introduction
This article will review some of the more technical aspects of Threat Stack. Threat Stack is a platform-independent intrusion detection system (IDS) designed to provide users with a unique view into various integrated server security functions. It monitors both Linux and Windows servers as well as Kubernetes or other container-based server infrastructures to observe behaviors and detect malicious, uncommon, and risky activity.
How to Install and Configure Django on CentOS 8
Introduction
In this article, we will discuss what Django is, its purpose, and how to install and configure it on CentOS 8.
What is SIEM?
Security Information and Event Management (or SIEM) is a subset of the computer security field, where applications and services join forces with security event management and security information management. When united, these disciplines provide significantly improved real-time statistical data and threat analysis of alerts generated by the related applications. The 2021 Internet Security Threat Report from Sophos denotes that are not only the number of attacks on the rise but also the diverse nature of methodologies and vectors of incursions used. This necessitates the fact that adding a SIEM is especially warranted at this time.
KernelCare Retirement
The KernelCare Linux kernel patching service is a system offered by CloudLinux. This product provides ongoing security patches for many Linux kernel versions. Updates are installed live without requiring a system reboot, which is a tremendous incentive when running an active server. Because CloudLinux offers a free symlink (symbolic link) protection patch for servers running CentOS 6 and 7, Liquid Web is replacing existing versions of KernelCare with this free version.
How to Install and Configure Zabbix on Ubuntu 20.04
Introduction
Zabbix is an open-sourced tool used to monitor various IT components such as servers and hardware that they are running, cloud services, whole networks, etc. Zabbix can monitor the network health and integrity of your servers. All monitoring can be done through Zabbix’s web-based frontend. This means that you can quickly check the status of your servers from anywhere! This article describes how to install the Zabbix monitoring tool, create a database, and configure the frontend on Ubuntu 20.04.
How to Troubleshoot SMTP Errors: Part 2
In part one of How to Troubleshoot SMTP Errors, we reviewed email status codes, internal reasons for email issues, and troubleshooting steps to address those issues. In part two of this series, we will examine some of the external reasons for email issues.
How to Troubleshoot SMTP Errors: Part 1
What is SMTP?
The Simple Mail Transfer Protocol (SMTP) is a communication protocol used to transmit email between corresponding email servers. Using an email client like Mac Mail, Outlook, Thunderbird, or web clients like Gmail or Windows Live, SMTP can send messages to an email server. Although SMTP was initially designed as an email transport and delivery system, it later encompassed the email submission protocols that are now in use by both the Post Office Protocol (POP) and the Internet Message Access Protocol (IMAP). The above-noted email clients use these protocols to retrieve email from an email server. When this system fails, it provides the means to identify and resolve SMTP errors.
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