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About FreeSWITCH – The World’s First Cross-Platform Scalable FREE Multi-Protocol Soft Switch. FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. FreeSWITCH also provides a stable telephony platform on which many applications can be developed using a

FreeSWITCH Installation on Linux

About FreeSWITCH – The World’s First Cross-Platform Scalable FREE Multi-Protocol Soft Switch. FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. FreeSWITCH also provides a stable telephony platform on which many applications can be developed using a

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About Asterisk : Asterisk is a software implementation of a telephone private branch exchange (PBX); it allows attached telephones to make calls to one another, and to connect to other telephone services, such as the public switched telephone network (PSTN) and Voice over Internet Protocol (VoIP) services. Here are the installation steps of Asterisk on

Asterisk Installation On Linux

About Asterisk : Asterisk is a software implementation of a telephone private branch exchange (PBX); it allows attached telephones to make calls to one another, and to connect to other telephone services, such as the public switched telephone network (PSTN) and Voice over Internet Protocol (VoIP) services. Here are the installation steps of Asterisk on

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JDK (Java Development Kit) JDK: It’s the full featured Software Development Kit for Java, including JRE, and the compilers and tools (like JavaDoc, and Java Debugger) to create and compile programs. Java Developer Kit contains tools needed to develop the Java programs, and JRE to run the programs. The tools include compiler (javac.exe), Java application launcher (java.exe), Appletviewer, etc…

JDK vs JRE

JDK (Java Development Kit) JDK: It’s the full featured Software Development Kit for Java, including JRE, and the compilers and tools (like JavaDoc, and Java Debugger) to create and compile programs. Java Developer Kit contains tools needed to develop the Java programs, and JRE to run the programs. The tools include compiler (javac.exe), Java application launcher (java.exe), Appletviewer, etc…

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LVM (LogicalVolumeManager) allows administrators to create meta devices in Linux that provide an abstraction layer between a file system and the physical storage that is used underneath. The meta devices (on which file systems are placed) are logical volumes, which use storage from storage pools called volume groups. A volume group is provisioned with one

How to Create LVM in Linux

LVM (LogicalVolumeManager) allows administrators to create meta devices in Linux that provide an abstraction layer between a file system and the physical storage that is used underneath. The meta devices (on which file systems are placed) are logical volumes, which use storage from storage pools called volume groups. A volume group is provisioned with one

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Red Hat offers a typical administrator → engineer → architect certification ladder, which is unique style unlike many other such programs, however, it offers highly-regarded and valued credentials at each rung, along with demanding and hands-on oriented exams and an excellent training curriculum to match. All exams for the following Red Hat certifications are performance

What, Why & How – RHCE

Red Hat offers a typical administrator → engineer → architect certification ladder, which is unique style unlike many other such programs, however, it offers highly-regarded and valued credentials at each rung, along with demanding and hands-on oriented exams and an excellent training curriculum to match. All exams for the following Red Hat certifications are performance

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This blog will explain what actually linux is for those who are curious about it’s definition but not yet ready to dive without initial introduction. Linux is, in simplest terms, an operating system. Now if you have to define the operating system, It is the software on a computer that enables applications and the computer

What is Linux

This blog will explain what actually linux is for those who are curious about it’s definition but not yet ready to dive without initial introduction. Linux is, in simplest terms, an operating system. Now if you have to define the operating system, It is the software on a computer that enables applications and the computer

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The perquisites are to have sufficient memory and to turn off selinux or set it to permissive. Changes to SELinux require a reboot. You also need sudo access, I ran packstack from my control node. # cat /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one

Install OpenStack on RHEL6 Using “packstack”

The perquisites are to have sufficient memory and to turn off selinux or set it to permissive. Changes to SELinux require a reboot. You also need sudo access, I ran packstack from my control node. # cat /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one

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Hard Link vs Soft ( Symbolic ) Link Links in Linux can are very much similar to Pointers in programming languages. The basic difference is that,Pointers in programming languages are used to point to the other variables, likewise Link is a pointer to a file or a directory. Creating a links is very much similar

Hard Link vs Soft ( Symbolic ) Link

Hard Link vs Soft ( Symbolic ) Link Links in Linux can are very much similar to Pointers in programming languages. The basic difference is that,Pointers in programming languages are used to point to the other variables, likewise Link is a pointer to a file or a directory. Creating a links is very much similar

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Each user is associated with a unique numerical identification number called a user ID (UID). Likewise, each group is associated with a group ID (GID). A user who creates a file is also the owner and group owner of that file. The file is assigned separate read, write, and execute permissions for the owner, the

User Management in Linux

Each user is associated with a unique numerical identification number called a user ID (UID). Likewise, each group is associated with a group ID (GID). A user who creates a file is also the owner and group owner of that file. The file is assigned separate read, write, and execute permissions for the owner, the

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Network File System formally knows as NFS is a distributed files system protocol, which allow a linux server to share directories and files with the linux clients over the network. With NFS, users and program can access files on remote systems as if they were stored locally. NFS was developed by SUN MicroSystems in 1984,

Configure NFS on Red Hat Linux ( RHEL6 )

Network File System formally knows as NFS is a distributed files system protocol, which allow a linux server to share directories and files with the linux clients over the network. With NFS, users and program can access files on remote systems as if they were stored locally. NFS was developed by SUN MicroSystems in 1984,

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Let’s Get Started PostgreSQL often knows as “Postgres”, is world most advance Object-relational database management system. PostgreSQL is developed by the PostgreSQL Global Development Group, a diverse group of many companies and individual contributors. It is free and Open source software, released under the terms of the PostgreSQL License, This is the quick guide for installation of

PostgreSQL Installation on RHEL 6

Let’s Get Started PostgreSQL often knows as “Postgres”, is world most advance Object-relational database management system. PostgreSQL is developed by the PostgreSQL Global Development Group, a diverse group of many companies and individual contributors. It is free and Open source software, released under the terms of the PostgreSQL License, This is the quick guide for installation of

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Linux namespaces are somewhat like Solaris zones in many ways from a user perspective but have significant differences under the hood. The term namespace isolation is often used because the purpose of namespaces is to provide a group of processes with the illusion that that they are the only processes on the system. This is

Network Namespaces in RHEL7

Linux namespaces are somewhat like Solaris zones in many ways from a user perspective but have significant differences under the hood. The term namespace isolation is often used because the purpose of namespaces is to provide a group of processes with the illusion that that they are the only processes on the system. This is

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Control groups (cgroups) are a Linux kernel feature that enables you to allocate resources – such as CPU time, system memory, disk I/O, network bandwidth, etc. – among hierarchically ordered groups of processes running on a system. Initially developed by Google engineers Paul Menage and Rohit Seth in 2006 under the name “process containers”, it

Control Group Subsystems in RHEL7

Control groups (cgroups) are a Linux kernel feature that enables you to allocate resources – such as CPU time, system memory, disk I/O, network bandwidth, etc. – among hierarchically ordered groups of processes running on a system. Initially developed by Google engineers Paul Menage and Rohit Seth in 2006 under the name “process containers”, it

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This blog introduces the Linux kernel and Linux operating system, placing them in historical context of Unix. Since the creation of Unix in 1969, the brainchild of Dennis Ritchie and Ken Thompson has become a creature of legends, a system whose design has withstood the test of time with few bruises to its name.

History Of Linux

This blog introduces the Linux kernel and Linux operating system, placing them in historical context of Unix. Since the creation of Unix in 1969, the brainchild of Dennis Ritchie and Ken Thompson has become a creature of legends, a system whose design has withstood the test of time with few bruises to its name.

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