How to enable Firewall/Iptables?
Iptables is a user-space utility application for configuring the IP packet filter rules of the enable firewall in the linux kernel firewall, which are implemented as separate Netfilter modules. The filters are structured in separate tables, each of which has a set of rules for how network traffic packets should be handled. Currently, separate kernel... Continue Reading
How to disable non essential services that are prone to exploitation?
Disabling unneeded services is a wise practice. As a result, fewer ports are available for exploitation in case of unwanted services running on the server of the nonessential service. Install the systemd package: sudo apt-get install systemd See which non essential services are running: systemctl list-units Recognize which services may expose your system to potential... Continue Reading
How can root login and password authentication for SSH be disabled?
The root user is enabled by default on most Linux servers, and hackers frequently attempt to get access to it by guessing its password. As a result, it’s a good idea to turn off the root account. First, make sure you have an admin user account so you can use the sudo special privileges access... Continue Reading
How do you install Virtualmin on Redhat or CentOS?
Virtualmin is a web hosting control panel for Linux and BSD systems that is both powerful and adaptable. Virtualmin is the cost-effective and complete solution to virtual web hosting administration, available in an Open Source community-supported version as well as a more feature-rich version with premium support. To install the control panel, we must first... Continue Reading
How to resolve CentOS 8 / RHEL 8’s ifconfig command not being found?
ifconfig is a command-line utility that displays network interfaces associated to Linux Servers as well as network information like IP addresses, netmask, and so on and network interfaces have been assigned to them. It also shows the number of transmitted and received network packets, as well as the number of error and dropped packets. When... Continue Reading