systemctlandserviceare command-line tools used to manage services in Linux. However, they are associated with different init systems. Init is the initialization process, the first process that starts when the computer boots up. It is responsible for initializing the system and starting other process...
Before we go further, we need to verify if ouropensshserver is working or not. How to do that? You can try to connect to theopensshserver from yourlocalhostthrough youropenssh clientor do aportscanwithnmap, but I like to use a small tool callednetcat, also known as theTCP/IPSwiss a...
In this tutorial I will use two systemsServerandlinuxclientfrom our LAB environment. I will configure OpenSSH Server onServersystem and OpenSSH client onlinuxclientsystem. If you want to check the network topology used in this article please check following article.Lab set up for RHEL practice....
This is where network configuration can become very complicated. For this reason, we’ll begin this chapter by looking at the layers in very simple networks. You’ll learn how to view your own network settings, and when you understand the basic workings of each layer, you’ll be ready to ...
There are several ways to automatically configure networks in Linux-based systems. The most widely used option on desktops and notebooks is NetworkManager. Other network configuration management systems are mainly targeted for smaller embedded systems, such as OpenWRT’s netifd, Android’s ConnectivityMan...
Step 1: Configure the Proxy Server Installing and configuring Squid on Linux Run the following command on the proxy server to install Squid: yum -y install squid Run the following command to back up the Squid configuration file: cp -a /etc/squid/squid.conf /etc/squid/squid.conf.bak ...
When you started a Linux target server after the migration succeeded, message "SELinux targeted" was displayed.The SELinux configuration is incorrect.Do not modify the SE
In conclusion, hardening the SSH server in Linux is essential to maintain the system’s security and integrity. In this article, we discussed the numerous security strategies to reduce the risk of unauthorized access and security breaches.
Step 2: Check whether the IP address that is specified in the machine group is the same as the IP address that is obtained by Logtail Note Logtail obtains a Linux server IP address by using one of the following methods: If the hostname of the server is not mapped to an IP...
5.After you’ve made the proper changes to the VNC service file, reload the systemd system initialization program to pick up the new vnc configuration file and start theTigerVNCserver. Also, check theVNCservice status and enable the VNC daemon system-wide by issuing the below commands. ...