Managing port level security in OpenStack 

Hits: 53I am investigating why dpdk doesn’t work inside an instance.   The OpenStack platform, specifically Neutron (the networking component), uses the concepts of “ports” in order to connect the various cloud instances to different networks and the corresponding virtual networking devices like Neutron routers, firewalls etc. The default security on these ports is quite restrictive (and …

Running the AWS CLI and Python on Windows 10 in a Linux Bash shell – 4sysops

Hits: 86Enable the Windows Subsystem for Linux ^ Before we start anything and install the Linux distribution package for WSL, make sure you enable the “Windows Subsystem for Linux” optional feature on your machine. Running the following command from your PowerShell console will enable this feature. Open PowerShell as an administrator and run: 1 Enable-WindowsOptionalFeature -Online …

How to show the “Position” column in the new Google Search Console Performance Report?

Hits: 80In order to show the position column in Google Search Console, simply click on the Average position square towards the top. Then it will magically appear   How to show the “Position” column in the new Google Search Console Performance Report?   Source: How to show the “Position” column in the new Google Search …

Edit config files inside containers of Openstack Queens or RHOSP 13

Hits: 85Edited  config files inside Docker containers of OpenStack get overwritten when the container is restarted. The config file is mounted from a file in the server where it resides, like in the controller, computes, ceph, swift, etc.   The files are often found at: /var/lib/config-data/puppet-generated/ /etc/puppet/hieradata/ /usr/share/openstack-tripleo-heat-templates/docker/services/neutron-ovs-agent.yaml /usr/share/openstack-tripleo-heat-templates/docker then restart the container with HUP …

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

Hits: 111Have 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: 182Not 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 …

OpenStack  SR-IOV – configure an instance

Hits: 117SR-IOV is single root input/output virtualization. In Openstack we use it for Network Functions Assuming that you have configured the Compute nodes properly with SR-IOV , you will need to configure networks and flavors slightly differently than a regular OpenStack installation.   6.5.1. Procedure – be sure to create aggregates Ensure that the AggregateInstanceExtraSpecFilter value is …

Chapter 5. Customizing the Ceph Storage Cluster – Red Hat Customer Portal

Hits: 129I was asked to fic journal size and max open files for ceph within Redhat  TripleO openstack templates. I will try to put it in Network environment template. parameter_defaults: CephConfigOverrides: journal_size: 2048 max_open_files: 131072 This will result in the following settings defined in the configuration file of your Ceph cluster: [global] journal_size: 2048 max_open_files: …

Director dnsmasq proccesses

Hits: 120Sometime one of these dies, both need to be running process in order for the director to install an overcloud. [root@director ~]# ps -ef | grep dnsm nobody 1524 1 0 2018 ? 00:00:04 /sbin/dnsmasq –conf-file=/etc/ironic-inspector/dnsmasq.conf nobody 17046 1 0 2018 ? 00:00:43 dnsmasq –no-hosts –no-resolv –strict-order –except-interface=lo –pid-file=/var/lib/neutron/dhcp/690af74d-ed11-4b43-89e1-8a725e4f0311/pid –dhcp-hostsfile=/var/lib/neutron/dhcp/690af74d-ed11-4b43-89e1-8a725e4f0311/host –addn-hosts=/var/lib/neutron/dhcp/690af74d-ed11-4b43-89e1-8a725e4f0311/addn_hosts –dhcp-optsfile=/var/lib/neutron/dhcp/690af74d-ed11-4b43-89e1-8a725e4f0311/opts –dhcp-leasefile=/var/lib/neutron/dhcp/690af74d-ed11-4b43-89e1-8a725e4f0311/leases –dhcp-match=set:ipxe,175 …

Getting drive device output for ceph from undercloud introspection 

Hits: 157In order to prepare the template for mapping ceph drives for the Redhat Openstack Overcloud run the following. openstack baremetal introspection data save <UUID>1a4e30da-b6dc-499d-ba87-0bd8a3819bc0 | jq “.inventory.disks” (undercloud) $ openstack baremetal introspection data save 1a4e30da-b6dc-499d-ba87-0bd8a3819bc0 | jq “.inventory.disks” Source: Deploying an Overcloud with Containerized Red Hat Ceph – Red Hat Customer Portal