Enviromnent Preparation Before configuring the name service, ensure the underlying operating system is ready. Disable firewalls and SELinux temporarily to avoid interference during setup. # Stop firewall service dsystemctl stop firewalld # Set SELinux to permissive mode setenforce 0 # Install BIND p...
Identifying Active Network Hardware List available interfaces and their current state: nmcli device status Typical output includes the local loopback (lo at 127.0.0.1/8), physical adapters such as ens192 or enp0s3, and virtual devices like Docker bridges or VLAN sub-interfaces. Physical adapters hen...
Note: The multiple IP addresses must be in the same subnet to avoid multi-gateway issues. For example, if the subnet is 192.168.1.0/24 with gateway 192.168.1.1, you can assign IP addresses like 192.168.1.2 through 192.168.1.254. To configure multiple IP addresses on a single network interface in Cen...
Network File System (NFS) ConfigurationInstall the required NFS server packages:sudo apt install nfs-kernel-server nfs-commonCreate a directory to act as the shared resource:sudo mkdir -p /srv/nfs_shareDefine the access rules in the configuration file:sudo nano /etc/exports # Append the following li...
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....