Newer Linux system ship bothdigandnslookuputilities by default. However, older Linux systems may not. The two come bundled inside thebind-utilspackage. Let’s see how we can install DNS troubleshooting utilities in Linux. On this page: Installing dig & nslookup in CentOS/RHEL Installing dig &...
The process of whitelisting IP addresses will vary from one firewall to another. As an example, this guide focuses on updatingiptablesrules. For other popular firewalls, refer to our articles onHow to Use firewalld on CentOS 7andHow to Set Up UFW on Ubuntu. To allow incoming connections f...
nslookupcomes preinstalled on all major operating systems. If you need to install it again on Ubuntu or another Linux distro featuring theAPT package manager, install thednsutilspackage: sudo apt install dnsutils On CentOS, Fedora, and Red Hat,nslookupis part of thebind-utilspackage. Install i...
In the line which has NS: localhost. – This is defining the Name server for the domain (NS). We have to change this to the fully qualified domain name of the name server. Change it to “ns.thegeekstuff.net.”. Make sure you have a “.” at the end. Next, define the A record...
sudo dnf install curl # CentOS/RHEL sudo yum install curl # Arch Linux sudo pacman -S curl After installation, want to make sure everything's working? Just run: curl --version If you see a version number, give yourself a high five! You're ready to roll! Step 2: Insta...
OpenVPNSetup And Configure OpenVPN Server On CentOS 6.5 Cisco IPsec VPN /IKEv2 VPN使用Strongswan搭建IPSEC VPN PPTPHow To Setup Your Own VPN With PPTP L2TPIPSEC L2TP VPN on CentOS 6 常用的VPN教程已给出,本文不再做赘述。 ###服务器到服务器端VPN Traffic Redirect ...
, the ‘nmap’ command comes pre-installed. However, if it’s not, you can install it in Debian based distributions like Ubuntu, using the commandsudo apt-get install nmap. For distributions like CentOS that use RPM package manager yum, you would run the commandsudo yum install nmap....
Recommended Read:How to Install a Kubernetes Cluster on CentOS 8 For this tutorial, we will walk-through a multi-nodeKubernetescluster installation onCentOS 7Linux. This tutorial is command-line based so you will need access to your terminal window. ...
Install Python 3.6 or newer. Set Up the Example App Supervisor is usually configured to run important components of your project’s software. The example in this guide is simplified so that it just illustrates Supervisor’s functions: Log into your CentOS 8 server. Create the directory that the...
How to Install the Silver Searcher Depending on your Linux distribution, use one of the following methods to install The Silver Searcher. OnDebianandUbuntu, use the following command: sudo apt install silversearcher-ag OnAlmaLinux,CentOS 8or later, andFedora, use the following command: ...