In the organizations where the OpenStack is used aggressively, so in such organizations application and database teams can come up with requirement that their application and database instances are required to launch either on same compute nodes (hypervisor) or different compute nodes. So, this requirement … Read more
Sometimes, you may have tasks that need to be performed on a regular basis or at certain predefined intervals. Such tasks include backing up databases, updating the system, performing periodic reboots and so on. Such tasks in linux are referred to as cron jobs (Crontab). … Read more
In the previous article, we demonstrated how to install Nagios Core on CentOS 8 / RHEL 8 server. In this guide, we will dive deeper and add Linux and Windows hosts to the Nagios Core server for monitoring. Adding a Remote Windows Host to Nagios … Read more
In this blog post, we will show you how to enable timestamp in history command output. If you’re a command-line enthusiast, you probably use the history command regularly to recall past commands. It’s a handy feature that allows you to review your actions, streamline your … Read more
Rsyslog is a free and opensource logging utility that exists by default on CentOS 8 and RHEL 8 systems. It provides an easy and effective way of centralizing logs from client nodes to a single central server. The centralization of logs is beneficial in two … Read more
In this article, we will demonstrate how to install epel repository on RHEL 9 and RHEL 8 system. EPEL Stands for Extra Packages for Enterprise Linux, it is a free and open-source additional packages repository available for RHEL, CentOS Stream, AlmaLinux and Rocky Linux servers. … Read more
A VNC (Virtual Network Computing) Server is a GUI based desktop sharing platform that allows you to access remote desktop machines. In Centos 8 and RHEL 8 systems, VNC servers are not installed by default and need to be installed manually. In this article, we’ll … Read more
Cockpit is a Web based server management tool available for CentOS and RHEL systems, recently CentOS 8 and RHEL 8 are released where cockpit is kept as default server management tool. Its package is available in the default CentOS 8 and RHEL 8 package repositories. … Read more
After RHEL 8 release, CentOS community has released its most awaited Linux distribution as CentOS 8. It is released into two forms: CentOS stream – It is designed for the developers where they will get the updates quite frequently. CentOS – It is RHEL 8 … Read more
SFTP stands for Secure File Transfer Protocol / SSH File Transfer Protocol, it is one of the most common method which is used to transfer files securely over ssh from our local system to remote server and vice-versa. The main advantage of sftp is that … Read more
Metricbeat is a lightweight shipper (or agent) which is used to collect system’s metrics and application metrics and send them to Elastic Stack Server (i.e Elasticsearch). Here system’s metrics refers to CPU, Memory, Disk and Network Stats (IOPS) and application metrics means monitoring and collecting … Read more
Elastic stack widely known as ELK stack, it is a group of opensource products like Elasticsearch, Logstash and Kibana. Elastic Stack is developed and maintained by Elastic company. Using elastic stack, one can feed system’s logs to Logstash, it is a data collection engine which … Read more
