/usr/bin/env: node: No such file or directory
Just after upgrading the npm on our Ubuntu system, npm command stopped working. Suddenly it started showing the error, “/usr/bin/env: node: No such file or directory”.
Install Gnome Desktop on CentOS 7
In this article, we will install Gnome desktop on CentOS 7 Operating System. A few days back we have installed the CentOS 7 on our system from bootable USB key. We installed CentOS 7 without GUI (Graphical User Interface). Now in this post, we will show how to install Desktop on CentOS 7.
Create bootable usb key for CentOS 7 installation
In this tutorial we will learn, how to create bootable usb key for CenOS 7 installation. Currently many laptops/systems are available in market which are without CD/DVD drive.In a short words, technology is changing very fast.
Protect from SSL Drown Attack in AWS ELB – Apache – Nginx
Learn how to protect from SSL Drown Attack in AWS ELB – Apache – Nginx .DROWN, stands for Decrypting RSA using Obsolete and Weakened eNcryption and is a Man-in-the-Middle (MITM) attack against servers running TLS for secure communications.
How to install MySQL Server 5.7 on Ubuntu 14.04 LTS
In this guide we will learn, how to install MySQL Server 5.7 on Ubuntu 14.04 LTS. We always recommend our readers to read release notes of every mysql.
Install Google Chrome on Ubuntu 14.04.3 LTS
In this article, we will learn how to Install Google Chrome on Ubuntu 14.04.3 LTS first time. nstalling the google chrome is a quite easy method.
Upgrade Ubuntu 14.04 LTS to Ubuntu 14.04.3 LTS
In this quick post, we will upgrade Ubuntu 14.04 LTS to Ubuntu 14.04.3 LTS. Keeping the system updated is always a good practice.
setfacl: Option -m: Invalid argument near character 3
When you work with lots of server and setting permission with setfacl command, you may encounter with this error – “setfacl: Option -m: Invalid argument near character 3”.
Install OpenXenManager on Ubuntu 14.04 LTS
Learn how to install OpenXenManager on Ubuntu 14.04 LTS Desktop. After finishing the installation of XenServer, you may be searching how to install xencenter on linux. To connect to XenServer from client machine, we need XenCenter client. Till writing of this post, Citrix team has not introduced XenCenter for linux. Thanks to Open Source world, we have OpenXenManager – the alternate of XenCenter for Linux.
Upgrade firefox on Ubuntu 14.04 LTS Desktop
In this post, we will explain how to install – upgrade firefox on Ubuntu Desktop. After installation of Ubuntu 14.04 LTS in our laptop, we upgraded the firefox to version 29. Now at the time of writing this post, firefox stable verion 43 is available.
WordPress error “Unable to create new image”
After uploading the image, we tried to crop the image but we found this wordpress error “Unable to create new image”.
sdcard not mounted Ubuntu 14.04 LTS Desktop
Learn how to solve the problem of SDCard not mounting to Ubuntu system.
gpg error the following signatures couldn’t be verified
The post explains the quick fix of problem stating “gpg error the following signatures couldn’t be verified”. This issue we encountered while installing a package with apt-get command on Ubuntu 14.04 LTS Server. GPG Error : How To Solve The given below is real error which we found on our server while installing haproxy package,…
vi / vim : Remove space at beginning and end of each lines
In this article, we will learn in vi / vim editor how can we remove all the spaces at the beginning or end of the file. Recently, we have encountered the problem where contents where copied from one file to another file with new file extension. There we found too many uneven spaces in each line at beginning and end.
Nagios monitoring on AWS Autoscaling group instances
Setting Nagios monitoring alerts on instances behind the AWS Elastic Load Balancer (ELB) is always tricky part. In this post, we will learn how we can monitor the instances which are created by autoscaling policy and running behind the ELB. We expect our reader do have good knowledge on scripting, nagios and AWS comptuting. This…