Hits: 689Have 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 …
6 Effective Tips for Blocking Email Spam with Postfix SMTP Server
Hits: 6757Not 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 …
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OpenStack keeps resetting my hostname
Hits: 489Openstack 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 …
Disconnected Registry for Red Hat Openstack and Openshift
Hits: 2824Setup disconnected Docker registry for Rhosp Setup disconnected Docker registry for Rhosp 13 Pre-requisites:1. Server for registry that has 2 nics to connect to internet and disconnected servers2. Director configured with latest minor release3. Current Redhat subscription 4. Hundreds of GB free, preferably a TB. It is wise to have /var as a separate mounted …
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CentOS 7 : Dnsmasq : Install : Server World
Hits: 2440 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 …
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Validate Yaml Template Files
Hits: 282YAML 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 …
Battle of the Switches – Open Virtual Switch vs. Linux Bridge
Hits: 354Open 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 …
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How to Simplify Container Image Management in Kubernetes with OpenShift Image Streams – Red Hat OpenShift Blog
Hits: 2756 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 …
בלוגים – Test whether your Openshift is installed and working
Hits: 322Here 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 …
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בלוגים – Howto: Set FQDN of a Redhat Linux cloud instance
Hits: 387Hostnames 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 …
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How to show excerpt instead of full post in Twenty Seventeen? – WordPress Information Center
Hits: 4750The 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 …
How to get a Shell Prompt from multiple servers and run commands on them ? Clush
Hits: 771 When you have a bunch of servers that are configured the same and need to run the same task on them you will need a tool that does that. There are several Open Source tools. I was asked to write such a script but quickly fell upon several really popular scripts. The perfect …
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Check out my new repository project. CharmingSteve/Centos-docker-tomcat-mongo-pythong
Hits: 833 The project puts 3 applications inside a single Docker Container. These are MongoDB, Tomcat and Python. The first 2 usually conflict with standard containers that usually run one of them in the “foreground” which only one can do. Official containers have just one. Centos incorporated SystemD into its official container, but it’s a …