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Tested on Red Hat Satellite 6.3 Issue How to change the download policy of all enabled repositories in Satellite 6.3? How to change the repo...

  First check that you have ipmitool installed: [root@lykan ~]# yum provides ipmitool Last metadata expiration check: 0:06:54 ago on Thu 21 ...

A lot of sysadmins, SRE o wherever you want to call us, using native Linux in our laptops have the need to use virtual machines running Wind...

DISCLAIMER: This is not my post is only a copy, in case the original gets deleted or whatever, posting on my personal blog gets easier for m...

  You're working on an XFS filesystem, in this case, you need to use xfs_growfs instead of resize2fs. Two commands are needed to perform...

Sometimes you need to change the password to a user in a qcow2 image, to test locally, or if you are using an infrastructure without cloud-i...

In any kind of distributed system, you will have to choose between consistency, availability, and partitioning, the   CAP theorem   states t...

Monitors can be severely affected by significant clock skews across the monitor nodes. This usually translates into weird behavior with no o...

  I don't recall any reason to do this other than using the same user and auth key to authenticate in different Ceph clusters, like in a...

Suppose that you want to migrate an instance from different infrastructures or you want to hand over an instance information to a client, so...

I think we pass the part about what juju is and how it works, so I'll post direct commands and configurations of how to get the environm...

Let's assume you want to change ownership of volume from Tenant_A to Tenant_B. Step 1: Tenant A will initiate an Ownership Transfer whic...

An architecture trying to respond to at least 10000 concurrent connections per second, is trying to solve the C10K problem, even if this is ...

It’s not a secret that the best and most competitive technologies today exist in the world are based on some Open Source component, maybe th...

If you are using some flavor of Enterprise Linux, eventually will get tired of downloading rpm packages from  Here  BTW, this is a really gr...

Suppose you want to use Linux and OpenSSH to automize your tasks or you just don't want to type the password every time you connect to a...