Scientific Linux

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Install Munin Tracking & Monitoring System (RedHat/CentOS/Ubuntu/SUSE)

Munin Monitoring System is one of the popular computer system, network and infrastructure monitoring tool. With Munin, real-time information about the servers, applications, services, SANs, network and many more resources is available in graphs through a web [...]

Update & Add CA Certificates Bundle in RedHat & CentOS

Red Hat Enterprise Linux (RHEL), CentOS, Fedora, Scientific Linux and other Linux distributions derived from RHEL provides the system-default legacy classic CA certificate trust bundle Mozilla root CA list, where they have classic file names and are [...]

List All Packages Installed by a Specific Repo in CentOS / RedHat with YUM

Red Hat Enterprise Linux (RHEL), Fedora, CentOS and Scientific Linux allows administrators to add and enable multiple repositories (repos) to install software packages that are not included in the default base and updates repositories. Over time, the [...]

Cannot Retrieve Metalink for Repository: EPEL

When using yum to install or update software packages through "yum install" or "yum update" commands, the following stop error occurred: Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile Error: Cannot retrieve metalink for repository: [...]

Create & Migrate Existing Working RedHat / CentOS System to RAID 1 / RAID 10

Linux system has built-in support for software RAID, through MD devices aka Linux Software RAID. Most Linux distributions such as Red Hat Enterprise Linux (RHEL) and CentOS allows you to easily set up RAID arrays while installing [...]

Install DDclient Dynamic DNS (DDNS) Update Client in CentOS

DDclient is a Perl-based DDNS client used to update dynamic DNS records for domains. DDClient, most commonly used in Linux, Unix and FreeBSD, has the same function with DNS-O-Matic in Windows platform. DDClient supports multiple DDNS services [...]

MariaDB: Webmin MySQL Startup Script /etc/rc.d/init.d/mysqld Was Not Found

MariaDB, the enhanced in-place upgrade of MySQL database management system, is getting more popular each passing day. We decide to upgrade from MySQL, which comes preinstalled in CentOS, to MariaDB 5.5, and subsequently to MariaDB 10, the [...]

Install Odoo 8 (OpenERP) in CentOS & Red Hat Enterprise Linux

Odoo, previously known as OpenERP, is an open source traditional ERP (Enterprise Resource Planning) business apps which also comes with many additional modules that help to manage the tasks such as building e-commerce websites, point of sales [...]

Sync RHEL / CentOS Server Time with Authoritative Time Server Automatically

In Linux server running Red Hat Enterprise Linux (RHEL) or CentOS, the time of the server may become incorrect and differ from official real clock after some time due to clock drift, as not all clocks is [...]

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