This guide outlines the steps to deploy a private GitLab instance on a CentOS 7 system. Prerequisites Install required dependencies: sudo yum install curl policycoreutils openssh-server openssh-client sudo systemctl enable sshd sudo systemctl start sshd sudo yum install postfix sudo systemctl enable...
Add a new physical disk to the system. The system should detect it as /dev/sdb. Create a physical volume (PV) from the new disk: pvcreate /dev/sdb Verify the PV was created: pvs Display detailed PV information: pvdisplay Extand the existing volume group (VG) by adding the new PV: vgextend vg_templat...
Allocate a minimum of 8GB RAM to the CentOS 7 virtual machine to ensure sufficient memory for the Docker containers. System Preparations Map the required service hostnames by appending the following entries to the /etc/hosts file: cat <<EOF >> /etc/hosts 127.0.0.1 adhoc-1 adhoc-2 namenod...
Prerequisites A virtual machine running CentOS 7 is required for this setup. Installing Docker 17.09.0-ce Remove Existing Docker Components Uninstall any previously installed Docker packages: yum remove docker\* Remove the container-selinux package to avoid conflicts: yum remove container-selinux-1....
Deploying Cacti requires specific system prerequisites to ensure stability and performance. The target environment must run CentOS 7 or higher with stable network connectivity. PHP version 7.x or later is required, along with a database backend such as MariaDB or MySQL version 5.7 or newer. Deployme...
When executing yum install -y lrzsz, you may encounter an error indicating a failure to connect to the repository mirrror. The output typically encludes: [root@centos ~]# yum install -y lrzsz Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile Could not retrieve mirro...
Docker Installation on CentOS 7 System Preparation Update the package manager: sudo yum update -y Install required dependencies: sudo yum install -y yum-utils device-mapper-persistent-data lvm2 Add the Docker repository: sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/doc...
FreeTDS is an open-source implemantation of the Tabular Data Stream (TDS) protocol used by Microsoft SQL Server and Sybase. It provides command-line utilities (such as tsql) and client libraries for applications. Project site: https://www.freetds.org Stable source tarball: http://ibiblio.org/pub/Lin...
Fixing yum/rpm failures during package installation (e.g., vsftpd) caused by unfinished transactions, duplicate packages, or a stuck RPM database lock. Symptom Attempting too install vsftpd fails with messages about unfinished transactions and duplicate packages: $ sudo yum install vsftpd Loaded plu...