Red Hat Certified System Administrator in Red Hat OpenStack exam tests the Openstack management skills of candidate. Before you start preparing for this exam you should understand basic Linux. Redhat recommends skills of at least the level of RHCSA-RHEL. And this level is important as it’s a lab exam and you have to answer the questions by doing them practically.
If you are a newbie on linux and want to quickly master linux you can check Learn Linux course on Udemy.
Here I am listing few Linux commands and topics which you should know before sitting for the Redhat Openstack exam.
Continue reading “How to prepare for EX210 – RHCSA in Red Hat OpenStack Exam”
If you are using wordpress you may have seen that when you post something in a category, you may end up seeing at the top of the page something like “CATEGORY : EXAMPLE” .
To avoid this login to your WordPress Dashboard
Go to Appearance> Themes> Edit Themes >Additional CSS
Continue reading “Solved: How to remove category title from wordpress posts”
Most of the services provided by different cloud providers are same as what you do in on-premises setup, they just have a different name in cloud. Below is comparison of major services offered by different cloud providers and what they mean in simple laymen terms. Hope this is helpful to you.
Continue reading “AWS VS AZURE VS OPENSTACK”
What is the smallest and largest subnet in Azure?
The smallest subnet in Azure is /29. So theoretically you have 8 IPs in subnet but Azure reserve 5 IPs so you will only get 3 IPs for yourself.
While the largest subnet in Azure is /8 . 5 IPs are reserved in this also.
Refer this post to know how to calculate the total number of IPs available in a subnet.
You can get more details on this page of Azure site .
example.com currently unable to handle this request. HTTP ERROR 500
Above error is general and can be related to multiple things. Here we will look at a step by step approach to troubleshoot this. Login to your linux server.(If it’s AWS instance refer How to login to AWS EC2 Linux Instance )
Continue reading “Solved: HTTP ERROR 500 example.com currently unable to handle this request.”