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Login via console to your failed openstack deployment This is a copy of a blog that I wrote where I work at Octopus Computer Solutions   While installing Redhat Openstack on Baremetal with lots of complicated networking, you might need to access Linux via the console.  Redhat images do not come with a default username and …

Continue reading “How to set a root password for your Openstack images”

Have you been feeling like Ai apps respond like 5 year olds? Medicine is based on statistics not theory. after eight years of waiting with little in the way of results, several doctors told IEEE Spectrum that they’re getting fed up — bad news for IBM, but also a potential inflection point for the AI …

Continue reading “Doctors Are Losing #Faith in IBM #Watson’s #AI. But does predict breakfast choice.”

Not so charming, mega spam! Tip #6: Using Public Anti-Spam Blacklists There are spam emails that are sent from servers that has a valid hostname, valid PTR record and can pass through grey listing. In this case, you can use blacklisting to reject spam. There are many public anti-spam blacklists online. You can use multiple …

Continue reading “6 Effective Tips for Blocking Email Spam with Postfix SMTP Server”

Openstack sets your hostname with cloud init on each boot. When you create the instance, you should assign it a name with full FQDN. This is absolutely required by Openshift. I did the following:   Check out the Original of this article from my blog at work:  Octopus Computer Solutions   Hostnames and FQDN are often …

Continue reading “OpenStack keeps resetting my hostname”

Install Dnsmasq which is the lightweight DNS forwarder and DHCP Server Software. [1] Install Dnsmasq. [root@dlp ~]# yum -y install dnsmasq [2] Configure Dnsmasq. [root@dlp ~]# vi /etc/dnsmasq.conf # line 19: uncomment (never forward plain names) domain-needed # line 21: uncomment (never forward addresses in the non-routed address spaces) bogus-priv # line 41: uncomment (query with each …

Continue reading “CentOS 7 : Dnsmasq : Install : Server World”

YAML Files YAML files are central to installing and upkeep of the Openstack.  YAML stands for Yet Another Markup Language. It is considered to be human readable too. Columns for subcategories on new lines are set spaces. Non-standard characters can also cause errors. It is not always clear what the errors are. Openstack scripts run …

Continue reading “Validate Yaml Template Files”

Open Virtual Switch was initially conceived in a university environment, with a flow-based model providing the development primitive, and a central controller determining what those flows actually looked like. The use of OVS as a virtual switch in the IaaS market (and to be specific, in the OpenStack IaaS market) came about because the resources …

Continue reading “Battle of the Switches – Open Virtual Switch vs. Linux Bridge”

Understanding and confuting Image Streams is central for getting Openshift to work as you need it to work, with images and code that you desire. Over the course of the past few weeks, I have been gathering feedback around Image Streams. This feature can cause a lot of misunderstanding and confusion, even for long-time users. …

Continue reading “How to Simplify Container Image Management in Kubernetes with OpenShift Image Streams – Red Hat OpenShift Blog”

Here are some common concepts  that need to be running on your systems, in order to be relavent: Openshift microservices docker kubernetes pods   Work with Docker as microservices saves compute recources, However, it requires re-thinking how development is done. Microservices also enable Continuous Integration of changes to large applications. Red Hat OpenShift is an open …

Continue reading “בלוגים – Test whether your Openshift is installed and working”

Hostnames and FQDN are often far from what you desire. Very often in the cloud, be it Openstack, Amazon, Azure or GC, The default hostname is not what you need. When you change the name, it often reverts after reboot. This is due to Cloud Init run at every boot. Change a Red Hat Openstack …

Continue reading “בלוגים – Howto: Set FQDN of a Redhat Linux cloud instance”

The directions at the link below were great. I am seeking employment and the employers to see how they will benefit from my vast knowledge!!! The standard twentyseventeen WordPress theme only shows the entire article, even when you chose excerpts. The theme editor didnt work correctly. This is what I did: I made a child …

Continue reading “How to show excerpt instead of full post in Twenty Seventeen? – WordPress Information Center”