There may be scenarios, when you need to use a custom DNS server for your Instances. So if you are deploying your application on an CentOS 7 on AWS, lets see how can set a custom DNS server such as 8.8.8.8 and 8.8.4.4 Edit the following file, vim /etc/sysconfig/network-scripts/ifcfg-eth0 change the line PEERDNS="yes" to PEERDNS="no" Now, Edit the ...
As a Linux System admin, we always love to work on CentOS and RHEL. In my case i had to launch a CentOS7 instance from the AWS Marketplace again. When we set the hostname with hostnamectl and reboot, yes the Instance comes with the default hostname again. So i have thought of documenting it here, so ...
Issue You are trying to install vmware-tools on RHEL / CentOS 7 You are stuck with the below error. The path "" is not a valid path to the 3.10.0-327.el7.x86_64 kernel headers. Solution You have to install the below two packages, kernel-headers and kernel-devel You can run the below command to install those via yum. ...
We often need to add or modify a disk to a running server. In this article, we will see how you can Add new LUN or Disk, or Resize the LUN or Disk on a Linux without a reboot Scenario 1 – Add a new Disk or LUN You have added a new disk / ...
