Category Archives: Operations

Nagios Plugin Developed@NagiosExchange

Long ago, while working in one of the previous organization, there were lots of components like services and servers running in production environment. I had deployed all products one by one from scratch and the count kept on increasing. There … Continue reading

Posted in ARTICLES, Container, DevOps, FOSS, Monitoring, Operations, Programming, Virtualization | Tagged , , , , | Leave a comment

Chef Recipe: Oracle DB 11gR2 EE silent deploy

Chef provides a lot of flexibility and greater choice for infrastructure automation and I prefer it over others. We should design our recipe in such a way that the our recipes without being modified can be used in any environment … Continue reading

Posted in ARTICLES, DevOps, HOWTO, Operations, Private Cloud, Programming, Public Cloud, TUTORIALS | Tagged , , , | Leave a comment

xend Error: Acquire running lock failed: 256

Recently I encountered this issue in OVMM 3.2.9  while starting a vm with xm create <vm.cfg path> The reason behind this found was : the vm was not shutdown properly  and the lock file is still there even if VM … Continue reading

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Docker Private Registry Setup

We can create our own secure private  docker repository where we can store our images and can be accessed from remote machine. 1. Goto /var/lib/docker in server and Create certificate using the domain name: cd /var/lib/docker && mkdir certs mkdir … Continue reading

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Using Docker – Part 1

In this part we will go through some simple usage of docker command. Use -D with docker for debug mode. Docker images are Immutable and Containers are Ephemeral. How to get help ?? docker help docker <command> help 1. Check … Continue reading

Posted in ARTICLES, Container, DevOps, HOWTO, Operations, TIPS & T RICS, TUTORIALS, Uncategorized | Tagged , , , , , , | Leave a comment