Linux

Issue: I have my Jenkins master and slave setup on AWS instance. I am build i have a maven deploy task to upload a large artifact to nexus. During which the upload is getting timed out and i am getting “Slave went offline during the build” error. How do i solve this issue. This issue […]

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I am trying to create a volume in Glusterfs and  I am getting an error saying “Volume creation Failed: gdata is already part of a volume”. How can i rectify this problem? Glusterfs: already part of a volume Error This error normally occurs when traces of metadata and configs are present it the brick you have created. […]

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How do I install the latest mongoDB database server and components in Redhat 7 or a centos 7 box? There are no Mongodb packages available in the default yum repository. You need to add the mongoDb repository and then install and configure it. Follow the guide given below which has the steps for the same. […]

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When you do an ssh to a remote server, you might see a welcome message with the OS name, Team name or the Company name. This can be configured to show our own welcome messages. Linux Welcome Message using motd The welcome message is called motd (message of the day). You can put custom messages […]

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By default vagrant mounts the host folder to /vagrant directory of the Virtual machine where you have the vagrantfile. This allows us to share files and codebase to the virtual machine without dealing with file transfer utilities or SCP command. But you might face error sometimes that it does not mount the host directory to […]

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If you are running mission critical applications on servers, it is important to monitor and notify the administrators about the disk usage. There are many monitoring tools which do the monitoring and integrated with various notification services. But let’s say you are running a single server and you don’t have a monitoring solution in place. […]

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Linux is a multitasking system, which means it can run multiple tasks (process) at a time. Basically, a process is a running program or a task or a command on your Linux system. Linux Process Management for Developers When you are developing applications on Linux, you will be using a web server, database server etc..At times, you might […]

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Note: In Linux, everything is treated as files. Even folders are treated as files. There will be situations where you might probably want to find a file in your Linux system. You can find files and folders in Linux using the following commands Which Whereis Locate Find Which: Which command returns the location of the […]

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Why should you learn Linux? Linux is an awesome OS to work with. It is very malleable and it is really really fun to work with linux OS. Am not going to elaborate on this. Just read the article published by redhat and You will understand why you should learn Linux. Read: why should you […]

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When you interrupt yum installation and try to reinstall the package again , you are likely to get a transaction lock. You can rectify this issue using the following methods. 1. Remove the db files and rebuild those files again using the following commnds. Sudo rm -f /var/lib/rpm/__db.00* Sudo rpm –rebuilddb Once you executed the […]

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Even though you can check the disk , directory information and usage using graphical user interface, it is important to now the terminal commands to check the disk information and usage of a Linux machine. In this tutorial am going to explain the important commands to check the disk and directory information in Linux systems. There are two basic […]

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Before understanding what hardlinks and softlinks are, you must have an idea about innodes in Linux Innode is related with hardlinks and softlinks. What is an Innode? Innode is a Unix data structure which stores the information about a file or a folder. But innode does not hold the name of the file or a […]

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