Hacking isn’t a new phenomenon. As the web world keeps expanding, attacks on internet security have become more common. Cybercriminals have become smarter and hacking into computer systems and mobile devices have become more frequent. Hence, it is of paramount importance to protect yourself from cyber attacks and hacking. A few simple steps can go … Read more
Below list of topics are covered in this article What is kdump? Memory requirements Installing kdump Adding Boot Parameters Where to find generated vmcores? Configuring the core collector Enabling the service Testing the kdump configuration Analysing hung task ALSO READ: Things you must keep in mind before you upgrade or downgrade kernel in Linux What … Read more
The setquota command sets and changes the quota limits for a user, a group, or a file set.. Quota Implementation is done in Linux to limit the storage consumption per user/group. Features: Limit storage consumption per user/group Based on disk block usage or inode usage Imposed in 2 stages (thresholds) : soft and hard … Read more
Error: NoValidHost: No valid host was found You get below error message on the console while performing an overcloud deployment from the undercloud director 2018-08-14 06:42:59Z [overcloud.Controller.0.Controller]: CREATE_FAILED ResourceInError: resources.Controller: Went to status ERROR due to “Message: No valid host was found. There are not enough hosts available., Code: 500” 2018-08-14 06:42:59Z [overcloud.Controller.0]: CREATE_FAILED Resource … Read more
Below list of topics are covered in this article Bring up undercloud director Prepare Undercloud for overcloud deployment Phases of overcloud node deployment Registration Introspection Deployment Registering an overcloud node Configure Virtual Bare Metal Controller (VBMC) Configuration Files Register Nodes Introspection of overcloud nodes Check the provisioning state Flavor Details Check the property of the … Read more
Below list of topics are covered in this article Bringup Undercloud setup Verifying undercloud Installation Os-net-config Creating Directories for Templates and Images Install director images Upload overcloud images Setting a Nameserver on the Undercloud’s Neutron Subnet Create VMs for overcloud deployment Bringup Undercloud setup In my last article I had brought up my undercloud setup … Read more
