Hybrid cloud infrastructures have emerged as powerful tools for organizations aiming to experience the scalability of public clouds and easy control of private cloud services.

However, while this mix provides much-needed flexibility, it presents unique security challenges. These include visibility gaps that make it difficult for businesses to monitor user activities, detect threats, and ensure compliance.

An organization can employ various measures to address these challenges and prevent data breaches. However, log monitoring has proven to be a crucial tool that provides a detailed account of all events happening within a hybrid cloud infrastructure.

Install ELK stack: Manage logs with Elasticsearch, Logstash & Kibana

ELK stack is a popular, open source log management platform. It is used as a centralized management for storing , analysing & viewing of logs. Centralized management makes it easier to study the logs & identify issues if any for any number of servers.

Basically ELK stack is a combination of three open source tools,

Elasticsearch is a NoSQL database that is used for storing the logs,

Logstash is a…

Sysbench is a free & open source benchmarking tool that is used for evaluation OS parameters like CPU usage, memory usage, Disk IO & MySQL performance. Especially it becomes extremely important to benchmark these parameters when running load intensive database.

In this tutorial, we will learn to install Sysbench & will also learn how to use it with the help of some examples.

(Recommended Read: Mo…

Logs are very useful, especially when you are troubleshooting an issue. Logs have information about all the events for a service or for whole server. We have all kinds of logs for the servers & separate logs for the services also, like web server or MySQL etc.

These logs ought be managed as they keep on growing in size with time, which not only makes it difficult to analyze them but they also…

Glances is an open source real time Linux monitoring system that aims at providing as much as information possible in as minimum as space possible. Glances is like top command but more refined with many more features & much more real time information of your Linux system. Glances provide information regarding memory, CPU, Disk IO , file system, Uptime, processes, interfaces, alerts & many other…

Easy guide to setup Nagios monitoring using SSH (check_by_ssh)

In our earlier tutorials, we have discussed how to install Nagios server & add Linux client for monitoring using NRPE plugin & also to add Windows clients for monitoring using NSClient++. But those are not the only ways to connect clients to Nagios server for monitoring, we can also allow Nagios server to monitor Linux machines by ssh using the check_by_ssh plugin.

In this tutorial, we will learn…

How to install WireShark on Linux (CentOS/Ubuntu)

In our previous tutorial, we have learned about using tcpdump command to collect network packets for analysing/troubleshooting. But it can be a tiresome task to analyse all these network logs via CLI. But that’s not the only option, we can also install Wireshark, which has a GUI along with lots of features & makes it easy to capture & analyse the network packets.

Wireshark is free & Open source…

Learn how to use tcpdump command with examples

Tcpdump command is a famous network packet analysing tool that is used to display TCP\IP & other network packets being transmitted over the network attached to the system on which tcpdump has been installed. Tcpdump uses libpcap library to capture the network packets & is available on almost all Linux/Unix flavors.

Tcpdump command can read the contents from a network interface or from a…