Freaks City

System Preparation To streamline the installation process on Ubuntu 24.04, organize the required binary distributions and the IK Analysis plugin into a unified archive. Ensure the following files are prepared in your working directory: elasticsearch-8.13.4-linux-x86_64.tar.gz kibana-8.13.4-linux-x86_64.tar.gz elasticsearch-anlaysis-ik-8.13.4.z ...

Package Management in Different Linux Distributions Linux distributions utilize distinct package managers for software installation, updating, and removal. Administrative (root) privileges are required for these operations. CentOS / RHEL (yum) The yum package handler is the standard tool for Red Hat-based distributions. To install a network uti ...

Troubleshooting Case: MongoDB Service Fails to Start After Reboot After a server reboot, mongod failed to start automatically despite being enabled with systemctl enable mongod. The systemd journal reported: ExecStart=/usr/local/mongodb/bin/mongod -f /etc/mongod.conf (code=exited, status=48) The MongoDB logs showed: failed Cannot assign reques ...

Kylin Linux V10 operates on a Linux kernel, making it largely compatible with CentOS and RHEL operational procedures. However, identifying the specific system version requires specific commands, as standard release files may not provide complete kernel details. To determine the appropriate MySQL package, examine the kernel version using the fol ...

Node Exporter is a monitoring agent designed to gather system-level metrics such as CPU, memory, disk, and network usage, exposing them for Prometheus to collect and analyze. Prometheus serves as a powerful monitoring solution that relies on exporters like Node Exporter to fetch data from various systems. Installing Rocky Linux Refer to the fol ...

User Account Management Creating New Users CentOS/RHEL Systems: USERNAME=admin adduser ${USERNAME} echo securePass123 | sudo passwd ${USERNAME} --stdin &>/dev/null usermod -aG wheel ${USERNAME} && usermod -aG docker ${USERNAME} Debian/Ubuntu Systems: USERNAME=admin useradd -d /home/${USERNAME} -s /bin/bash -m ${USERNAME} echo &q ...

Configuring a Chrony time server on Linux ensures precise and consistent time synchronization across networked systems. As a modern alternative to NTP, Chrony is efficient in handling variable network conditions and provides high accuracy. Below is a comprehensive guide to deploying Chrony as a time server. Install Chrony Begin by installing ...

Overview The timedatectl command is a modern utility available in RHEL/CentOS 7 and Fedora 21+ systems. It serves as part of the systemd system and service manager, replacing the traditional date command used in sysvinit-based Linux distributions. This command allows you to query and modify the system clock, configure time settings, set timezon ...

Installing Docker CE on air-gapped KylinOS V10 (aarch64) systems requires a binary-based deployment. Follow the steps below to manually configure the daemon and its dependencies. 1. Acquire Binary Distribusion Download the official static binary package for the ARM64 architecture: mkdir -p /opt/docker_install wget https://mirrors.ustc.edu.cn/do ...

Understanding cgroups Before addressing the configuration issue, it's essential to understand what cgroups represents in the Linux kernel. cgroupfs is a virtual filesystem type developed to provide user-facing operations for control groups. It presents the cgroup hierarchy to users, communicates kernel changes requested by users, and handles al ...