This blog post delves into the process of automatically unlocking a LUKS2 encrypted system partition using Clevis and TPM2. To start with, you need to ensure that Secure Boot and TPM are enabled in your BIOS settings. For Secure Boot, you may need to configure your system to trust third-party certificates, which could involve generating a new key pair and certificate for your system, signing your boot loader and kernel with the new key, and enrolling the key in your system's Secure Boot database.
The blog proceeds to guide you through the installation of the necessary packages for Clevis, using the command `sudo dnf install clevis clevis-luks clevis-dracut clevis-udisks2 clevis-systemd`. Once installed, the TPM2 key has to be bound to Clevis, which creates a key on the TPM2 chip and binds it to the LUKS2 encrypted system partition. You will be prompted to enter your passkey.
The final step involves updating the system files to use Clevis to automatically unlock the system partition...--GPT 4
ZFS is a modern file system with features such as copy-on-write, redirect-on-write, deduplication, and snapshots, making it suitable for large-scale storage and data management scenarios. It operates on the concept of storage pools, where a pool manages disks and provides storage space. Datasets can be created on top of these pools, which don't require allocated space and can utilize the entire storage capacity of the pool. Each dataset is mapped as a directory for file storage and organization.
The blog post provides a detailed guide on how to install ZFS, locate your disk, list sets and pools, and manage pools and sets. It also explains how to use the deduplication property to remove redundant data from your ZFS file systems, resulting in only unique data being stored and common components being shared between files.
Additionally, the blog post discusses the use of snapshots, which record the state of the file system at a specific point in time. This feature allows for easy resto...--GPT 4
本篇博客讨论了一个在Linux设备上使用多个网络接口时遇到的问题,以及如何解决这个问题。在一个数据中心中,作者创建了多个子网,并将Linux设备的两个接口同时连接到这两个子网上。问题在于,当尝试访问互联网时,可能会出现“目标主机不可达”的错误消息。通过运行`ip route list`,作者发现蓝色网络具有较高的优先级,这是问题的根本原因。
为了解决这个问题,首先需要查看当前的路由表,可以使用`ip route list`命令。然后需要删除现有的默认路由,使用`ip route del default`命令。接下来,使用`sudo ip route add default via 172.16.50.1 dev ens160 proto dhcp metric 102`命令为具有较低度量值的网络接口添加新的默认路由。最后,可以使用`ip route get 8.8.8.8`命令询问Linux将使用哪个接口发送数据包到特定的IP地址,或者尝试连接互联网,例如使用`ping www.baidu.com`命令。
总之,如果在Linux设备上有多个默认路由,可以通过删除并使用较低度量值重新添加它们来调整优先级。这样就可以确保在具有多个网络接口的情况下,Linux设备能够正确地访问互联网。--GPT 4