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Browse the latest tutorials, guides, and practical examples across Linux, DevOps, security, databases, and programming on GoLinuxCloud.

Explore the latest tutorials and guides across Linux, DevOps, programming, and more.

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2233 articles

Java Math Class Explained [Easy Examples]

Java Math class has methods for performing more advanced math calculations. abs, ceil, floor, max, min, round, random methods in math class

By Bashir Alam · 11 min read · programming

Java string method explained [Easy Examples]

Concatenate Java strings, Finding length of String, Index and positioning of java strings, Comparing Java strings, change Java strings to upper case or lower …

By Bashir Alam · 10 min read · programming

grep Command in Linux Explained with Practical Examples

Learn how to use the grep command in Linux with practical examples. This guide explains common grep options such as recursive search, counting matches, matching …

By Rohan Timalsina · 12 min read · cheatsheet

SQL Union Operator Explained [Easy Examples]

SQL Union Operator or clause is a one of the SQL Set operators which is used to merge or combine two or more SQL Select Query results into single result set.

By Falguni Thakker · 8 min read · databases

Java Operators Explained [Easy Examples]

There are a total of eight java operators. Arithmetic, Rational, Logical, Bitwise, Assignment, Shift, Unary, Ternary operators

By Bashir Alam · 11 min read · programming

Secure OpenLDAP with TLS, MTLS, STARTTLS in Rocky Linux

Step by Step instructions to configure OpenLDAP over SSL/TLS using self signed certificates or Third party Root CA signed certificates using OpenSSL in Rocy …

By Deepak Prasad · 12 min read · system-administration

Java Type Casting Explained [Easy Examples]

The Java type casting is a method or process that converts a data type into another data type in both ways manually and automatically.

By Bashir Alam · 8 min read · programming

Install Graylog on Rocky Linux 8

Step by step instructions to install graylog on rocky Linux 8. Install and configure elasticsearch, mariadb, java and graylog server

By Deepak Prasad · 8 min read · linux

Different Java data types explained with Examples

In the Java programming language, there are basically two main types of data types that are primitive and non-primitive data types. Primitive data types again …

By Bashir Alam · 11 min read · programming

How to manually expire any certificate OpenSSL

Step by Step instructions to manually expire any certificate using openssl. Different commands and methods to generate an expired certificate

By Deepak Prasad · 8 min read · security

Kali Linux Repositories Explained [With Examples]

Kali Linux repositories are found in the /etc/apt/sources.list file. There are 3 different branch i.e. Kali-rolling branch, Kali-last snapshot branch, Kali- …

By Deepak Prasad · 4 min read · security