Mar 19, 2024How to convert qcow2 images to qcow3What if you need to convert an older qcow2 (compat 0.10) image to qcow3 (compat 1.1)? The VM needs to be shut down for this to work, you can’t do it live. The following command converts the image without touching the old one and writes the image to a new…Qcow21 min readQcow21 min read
Sep 14, 2020OpenShift IPI Install: Failed to get power state for node. Error: Redfish exception occurred.What if you are trying to install OpenShift using IPI on bare metal (HPE) and you find that some of your bare metal hosts are failing to register or provision. If you run oc -n openshift-machine-api get bmh you may see the error: Failed to get power state for node…Openshift2 min readOpenshift2 min read
Aug 11, 2020Automate enabling of IPMI over LAN access on HPE iLOWhat if you want to enable IPMI/DCMI over LAN across tens or hundreds of HPE servers? Thankfully with Redfish this is easy! By default on iLO 5 this setting is disabled for security reasons. The Manual Way Login to the iLO Web Interface, and go to Security >Access Settings > under Network and…Redfish2 min readRedfish2 min read
May 30, 2020F5 BIG-IQ VM fails online activationWhat if you are tying to activate a BIG-IQ v7.1.0 VM and the online activation fails and you get no error code? This is likely because your VM can’t reach secure.f5.com over HTTPS (TCP/443). This can be due to a firewall in your environment. If BIG-IQ can’t contact the licensing server at all you won’t get any error in the GUI. I also couldn’t find anything in the logs. If this is your issue you should see the spinning icon below for awhile and eventually it will go away and you’ll be back at the same activation page with no error.F51 min readF51 min read
May 30, 2020F5 BIG-IP or BIG-IQ: Can’t run config tool on CLIWhat if you’re deploying a new F5 BIG-IP or BIG-IQ virtual appliance and you get the following error when running the config² command. MCP must be in the running or base phase to run this script. Examine the output of ‘tmsh show sys mcp-state’ for failures The short answer is you need to wait a few minutes and try again. The appliance hasn’t finished starting all of the necessary processes in the background. If you are running the VM in a lab with a less than ideal CPU or RAM, it can take awhile for everything to start on first boot.F51 min readF51 min read
Feb 6, 2020Encrypting & Decrypting Arista BGP, BMP, & OSPF PasswordsWhat if you need to decrypt a BGP, BMP, or OSPF password in your Arista configuration to migrate the configuration to a different vendor? You may have tried a Cisco Type 7 Reverser and find that it doesn’t work. What if you want to encrypt these passwords beforehand for automation…Arista3 min readArista3 min read
Aug 9, 2019Automatically query the Azure CDN Edge Nodes ListWhat if you need to pull down the list of Azure CDN IP Addresses? If you need to do this once in a while then Microsoft’s Try It button works great to quickly get you the JSON data¹. Quickly parsing that into CIDR notation can be a headache. …Azure2 min readAzure2 min read
Jul 5, 2019Can’t see all images in featured image selectionWhat If you’re writing a Medium story and trying to change the featured image but only 1 of your 3 images is showing up in the image selection? I had this problem and there wasn’t any documentation about the requirements for featured images. I thought maybe it was because I…Medium1 min readMedium1 min read
Jul 5, 2019VMware NSX —Invalid Applied to ValueWhat if you’re trying to perform a publish operation in the VMware NSX distributed firewall and you get the error “Invalid Applied to Value at index 5, rule type LAYER3”? I recently experienced this error when trying to publish rules after we did…Cloud Computing2 min readCloud Computing2 min read
Apr 24, 2019Disable TLS 1.0 on Windows Server 2012 R2 with Remote Desktop Services configuredWhat if you need to disable TLS 1.0 on a Windows Server 2012 R2 machine but you have Remote Desktop Services configured? You might find out when you disable TLS 1.0 that RDP will stop working and the Remote Desktop Connection Broker service will fail to start. After googling around…Microsoft3 min readMicrosoft3 min read