Category: Linux/Unix

FileSystem has duplicate UUID can’t mount in Linux (Amazon AWS)

Issue FileSystem has duplicate UUID can’t mount when the root volume of an instance attached to another instance to fix an issue with an /etc/fstab file in Amazon AWS. See the below screenshots for more information. The /var/log/messages shows the below error. Short Description In Amazon AWS, a RHEL7 machine didn’t come up after a reboot. When […]

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OpenSwan – Connecting two VPC’s of different Regions in Amazon AWS

As of now today, Amazon AWS doesn’t have any in-built solution to enable the connectivity between VPC’s of two different regions unlike VPC peering between VPC’s of the same region. So we need to build a custom VPN solution to establish the connectivity between the region VPC’s. OpenSwan IPSec VPN is one of the best […]

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A Quick Insight on Vagrant

Vagrant is a tool enables users to create and configure lightweight, reproducible, and portable development environments and controlled by a single consistent workflow to help maximize the productivity and flexibility of you and your team. Vagrant became part of the HashiCorp Tools list and it is developing and maintained by HashiCorp team. It’s a CLI-based tool for […]

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