April 2021 - Page 57 of 66

How To Optimize Your Tomcat Installation on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Optimize Your Tomcat Installation on Ubuntu 14.04

Tomcat is a popular implementation of the Java Servlet and JavaServer Pages technologies. It is released by the Apache Software Foundation under the popular Apache open source license. Its powerful features, favorable license, and great community makes it one of the best and most preferred Java servlets.

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Ubuntu 20.04 — awl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — awl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4539-1 Related CVEs: CVE-2020-11728 Upstream summary: Andrew Bartlett discovered that DAViCal Andrew's Web Libraries (AWL) did not properly manage session keys. An attacker could possibly use this issue to impersonate […]

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How To Install WordPress with LAMP on Debian 9 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress with LAMP on Debian 9

WordPress is the most popular CMS (content management system) on the internet. It allows you to easily set up flexible blogs and websites on top of a MariaDB backend with PHP processing. In this guide, we’ll focus on getting a WordPress instance set up on a LAMP stack (Linux, Apache, MariaDB, and PHP) on a Debian 9 server.

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How to Join RHEL 10 to Active Directory with realmd — step-by-step RHEL 10 tutorial on Progressive Robot

How to Join RHEL 10 to Active Directory with realmd

Introduction Setting up join rhel 10 to active directory with realmd on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Join RHEL 10 to Active Directory with realmd, with all the commands you need, the SELinux and firewalld considerations to keep […]

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How To Install the Anaconda Python Distribution on Ubuntu 20.04 — step-by-step AI And Machine Learning tutorial on Progressive Robot

How To Install the Anaconda Python Distribution on Ubuntu 20.04

This tutorial will guide you through installing the Python 3 version of Anaconda on an Ubuntu 20.04 server. Anaconda is an open-source package manager, environment manager, and distribution of the Python and R programming languages. It is commonly used for data science, machine learning, large-scale data processing, scientific computing, and predictive analytics.

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Ubuntu 18.04 — salt — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — salt — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6948-1 Related CVEs: CVE-2020-16846 CVE-2020-17490 CVE-2020-25592 CVE-2020-28243 CVE-2020-28972 CVE-2020-35662 CVE-2021-25281 CVE-2021-25282  +9 more Upstream summary: It was discovered that Salt incorrectly handled crafted web requests. A remote attacker could possibly […]

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Ubuntu 16.04 — mc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — mc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5160-1 Related CVEs: CVE-2021-36370 Upstream summary: It was discovered that Midnight Commander would not check server fingerprints when establishing an SFTP connection. If a remote attacker were able to intercept […]

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How To Install and Use Logwatch Log Analyzer and Reporter on a VPS — step-by-step DevOps tutorial on Progressive Robot

How To Install and Use Logwatch Log Analyzer and Reporter on a VPS

Following in the footsteps of our previous articles on Linux system hardening, security monitoring and emailing alerts, in this the cloud provider article we will talk about Logwatch: a very powerful log parser and analyzer which can make any dedicated system administrator’s life a little bit easier when tackling application related tasks and issues.

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SLES 12 — stunnel — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — stunnel — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0772-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-20230 CVE-2013-1762 CVE-2011-2940 CVE-2014-0016 CVE-2015-3644 Upstream summary: A flaw was found in stunnel before 5.57, where it improperly validates client certificates when it is configured […]

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Cara Membangun Paginasi Khusus dengan React — step-by-step Javascript tutorial on Progressive Robot

Cara Membangun Paginasi Khusus dengan React

Metode untuk menangani set data besar terkait tampilannya adalah menggunakan teknik guliran yang tak terbatas – ketika banyak data dimuat dalam potongan seiring pengguna terus menggulir hingga sangat dekat dengan akhir halaman. Ini adalah teknik yang digunakan untuk menampilkan hasil pencarian di Google Images. Dalam tutorial ini, kita akan melihat cara membangun komponen paginasi khusus dengan React untuk melakukan paginasi pada set data yang besar. Kita akan membangun tampilan terpaginasi dari

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