How to extract modern Ubuntu initramfs
Just to remember, there is an explanation here, from which the following directive can be taken: (cpio -id; zcat | cpio -id) < /path/to/initrd.img
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Disk Storage | Laptop | Linux
Ubuntu 18.04 and TPM2 encrypted system disk
*** EDIT *** : An updated version of this post can be found here: https://run.tournament.org.il/ubuntu-20-04-and-tpm2-encrypted-system-disk/ When you encrypt your entire disk, you are required to enter your passphrase every time you boot your computer. The TPM device has a purpose – keeping your secrets secure (available only to your running system), and combined with SecureBoot,…
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HA ZFS NFS Storage
I have described in this post how to setup RHCS (Redhat Cluster Suite) for ZFS services, however – this is rather outdated, and would work with RHEL/Centos version 6, but not version 7. RHEL/Centos 7 use Pacemaker as a cluster infrastructure, and it behaves, and configures, entirely differently. This is something I’ve done several times,…
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USB Auto mapping to Windows VM under KVM does not work
Let me first say, that it does work for Linux guest. It doesn’t work on Windows guest because there is a know bug (/issue) with the default hardware layout – made of i440FX BIOS. VirtManager would not allow us to replace the settings, so we need to create the VM ourselves using XML. You can…
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Auto mapping USB Disk on Key to KVM VM using libvirt and udev
I was required to auto map a USB DoK to a KVM VM (specific VM, mind you!), as a result of connecting this device to the host. I’ve looked it up on the Internet, and the closest I could get there was this link. It was almost a complete solution, but it had a few…
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The StartTLS replacement for the old telnet to SMTP server on port 25
When you need to troubleshoot SMTP issues, it is a known fact that a simple telnet to port 25 of the SMTP server in question would get you far. It will get you to see the problems. When connecting to Office365 (outlook.com) to relay mail, and you want to check how things work, you can…