This category contains all the Linux, Solaris and ELK based topics.
In this article, we will look into 10 Popular Examples of sudo command in Linux(RedHat/CentOS 7/8). sudo command in Linux is a program used for non-privileged users to provide privileged access of another user, mostly superuser access. In a real world scenario, when you do not want to provide root credentials to another user to … Read more
In this tutorial, I will take you through 10 Popular Kafka Console Producer and Consumer Examples. Kafka is currently in high demand due to its various use cases. It is widely used as a messaging system, as a storage system and for stream processing. Kafka usually consists of four API Producer API, Consumer API, Streams … Read more
In this tutorial, I will explain about Apache Kafka Architecture in 3 Popular Steps. Kafka was released as an open source project on GitHub in late 2010. As it started to gain attention in the open source community, it was proposed and accepted as an Apache Software Foundation incubator project in July of 2011. Apache … Read more
In this article, I will take you through 9 useful w command in Linux with Examples. w is a very basic command line tool used in Linux to find out the users current logged in to the system and the operations or tasks he is currently performing. You can find this tool automatically installed in … Read more
In this article, I will take you through 12 Most Popular rm command in Linux with examples. Sometimes you might get asked what is the Linux command for removing a directory or what command do you use to delete a file. Answers of all these questions is rm linux command. You might be aware of … Read more
In this article, I will take you through 26 Useful Firewall CMD Examples on RedHat/CentOS 7. firewalld provides a dynamically managed firewall with support for network/firewall “zones” to assign a level of trust to a network and its associated connections, interfaces or sources. It has support for IPv4, IPv6, Ethernet bridges and also for IPSet … Read more
In this article, I will take you through 17 Useful Apache Kafka Examples on Linux(RedHat/CentOS 7/8). For many decades Organizations are using databases to store objects and entities. In a more general term objects and entities state but there were also a separate class of people who started thinking about Object events rather than Object … Read more
In this article, I will take you through 8 Most Popular mkdir command in Linux with Examples. mkdir command is used to create directories in Linux if it does not exists. It can be used to create multiple directories at different locations and can also be used to create directories recursively. You can also set … Read more
In this article, I will take you through what is wget and how to use wget command in Linux(20 Popular wget examples). wget is an interactive command line tool used for downloading files in Linux. This utility can be used in almost all of the Linux Based Environments and find many uses in accomplishing day … Read more
In this article, I will take you through Popular firewalld Examples to open a port on RedHat/CentOS 7. firewall-cmd is the command line tool used to manage firewalld rules. It allows port and services to be opened during runtime and also allows it to be persistent after reboot. Both the options are extensively used in … Read more