https://www.hersoncruz.com/categories/sysadmin/ Recent content in Sysadmin on hersoncruz.com Hugo -- gohugo.io en Fri, 16 Aug 2024 08:12:23 -0600 https://www.hersoncruz.com/posts/automate-it-tasks-like-a-pro/ Fri, 16 Aug 2024 08:12:23 -0600 https://www.hersoncruz.com/posts/automate-it-tasks-like-a-pro/ <img src="https://www.hersoncruz.com/images/covers/task_automation.gif"/> Discover the secrets to automating IT tasks with ease. This guide covers everything from basic scripting to advanced automation tools, helping you streamline your processes and free up valuable time. Perfect for sysadmins, developers, and tech enthusiasts looking to enhance their efficiency. https://www.hersoncruz.com/posts/automating-security-audits-with-bash-scripts/ Sat, 03 Aug 2024 06:05:21 -0600 https://www.hersoncruz.com/posts/automating-security-audits-with-bash-scripts/ <img src="https://www.hersoncruz.com/images/covers/bash.png"/> Learn how to automate security audits using Bash scripts to ensure your systems remain secure and compliant. Perfect for both seasoned and novice sysadmins. https://www.hersoncruz.com/posts/tackling-complexity-environment-drift-devops/ Sat, 03 Aug 2024 05:58:06 -0600 https://www.hersoncruz.com/posts/tackling-complexity-environment-drift-devops/ <img src="https://www.hersoncruz.com/images/covers/eac.png"/> Discover a comprehensive solution to the complex and common problem of environment drift in DevOps. Learn how to implement Environment as Code (EaC) to maintain consistency across environments, ensuring smooth deployments and robust security. https://www.hersoncruz.com/posts/task-automation-tuesday-simplify-user-management-with-ansible/ Tue, 23 Jul 2024 07:43:40 -0600 https://www.hersoncruz.com/posts/task-automation-tuesday-simplify-user-management-with-ansible/ Discover how to simplify and automate user management tasks using Ansible. This guide provides step-by-step instructions for sysadmins to streamline their workflows, reduce errors, and save time. https://www.hersoncruz.com/posts/automate-your-network-monitoring-with-python-and-scapy/ Sat, 20 Jul 2024 07:40:27 -0600 https://www.hersoncruz.com/posts/automate-your-network-monitoring-with-python-and-scapy/ <img src="https://www.hersoncruz.com/images/covers/python_networking.png"/> Discover how to use Python and Scapy for automating network monitoring tasks, perfect for experienced sysadmins looking to enhance their network management capabilities. https://www.hersoncruz.com/posts/essential-security-practices-for-sysadmins/ Sun, 14 Jul 2024 06:53:24 -0600 https://www.hersoncruz.com/posts/essential-security-practices-for-sysadmins/ Welcome to the inaugural post of “Security Sunday” on hersoncruz.com! Every Sunday, we’ll delve into essential security practices and share scripts that will help sysadmins fortify their servers and keep cyber threats at bay. Let’s get started with some foundational security practices and a few handy scripts to automate these tasks. https://www.hersoncruz.com/posts/mastering-server-management-with-tmux/ Sat, 13 Jul 2024 06:02:15 -0600 https://www.hersoncruz.com/posts/mastering-server-management-with-tmux/ Discover the power of tmux, a versatile CLI tool that helps sysadmins automate and manage their servers efficiently. Learn how to use tmux to create persistent sessions, manage multiple windows and panes, and collaborate with team members in real-time. With practical examples and tips, you’ll master server management tasks and enhance your productivity. https://www.hersoncruz.com/posts/howto-install-unifi-controller-on-debian-11/ Tue, 20 Sep 2022 07:03:27 -0600 https://www.hersoncruz.com/posts/howto-install-unifi-controller-on-debian-11/ Install Unifi Controller on Debian 11 with AWS, open ports, and detailed setup instructions. This guide provides step-by-step directions for creating an AWS instance, configuring security groups, upgrading Debian, installing necessary certificates, and running the installation script for Unifi Controller, including optional unattended installation with Let’s Encrypt certificates. https://www.hersoncruz.com/posts/hardening-ssh-service/ Fri, 14 Oct 2016 08:44:01 -0600 https://www.hersoncruz.com/posts/hardening-ssh-service/ Learn how to harden your SSH service with secure configurations and key-based authentication. This guide will walk you through setting up a public-private key pair, creating regular user keys, and configuring your SSH service for enhanced security. By following these steps, you will prevent root login, use non-standard ports, and ensure only key-based authentication is allowed, significantly improving your server’s security. https://www.hersoncruz.com/posts/bash-sequences/ Mon, 12 Oct 2009 09:56:38 -0600 https://www.hersoncruz.com/posts/bash-sequences/ <img src="https://www.hersoncruz.com/images/covers/bash_sequences.png"/> Learn useful Bash expansions for automating tasks, creating folders, files, and more with ease. https://www.hersoncruz.com/posts/mysql-bin-log-files/ Fri, 06 Jun 2008 10:42:11 -0600 https://www.hersoncruz.com/posts/mysql-bin-log-files/ Manage MySQL bin log files efficiently by setting automatic expiration to avoid disk space issues.