While AMD has made quite a comeback on the desktop front with each successful iteration of their Ryzen CPUs based on the Zen architecture, things on the server side is not as rosy, as the market is still largely dominated by Intel. For the longest time I have always wanted a Ryzen-based VPS, because I know how awesome they will be. The hunt ended when I came across BuyVM aka Frantech.
LiteUnit LLC is a Russia-based hosting company that is currently offering VPS hosted in Novosibirsk, a place where it is often more affectionately known as “New Siberia”. It has nothing to do with the Moscow image featured in this article (in fact, the two cities are more than 3,300km apart), but I figure everybody loves a good cliché at the end of the day.
Assuming you had or have been using Linux VPS from second or third-tier vendors, you would have come across the following error message at some point:
W: initramfs-tools configuration sets RESUME=/dev/sda2 W: but no matching swap device is available. I: The initramfs will attempt to resume from /dev/vda2 I: (UUID=03bd7930-a963-4fa7-9db2-8c30eca1ea58) I: Set the RESUME variable to override this.
Aria2 is a headless (command-line based) multi-protocol downloader. It supports the downloading of HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink resources. Many frontends exist for Aria2, they are available either as standalone apps, or browser extensions.
Technically Aria2 can function by itself, but I don’t consider its command-line functionalities to be usable for most. Thanks to its frontend-backend separation architecture, Aria2 can easily be deployed on headless servers, such as a VPS, where you can remotely push download tasks to the backend server. Since the actual download takes place on on the backend server and not your frontend device, you don’t have to worry about leaving your devices on or preventing it from entering sleep/suspend states.
最近与几个大佬闲聊之际，发现很多人都在不约而同地吐槽 Azure 的效能。综合的来的意见不外乎是云盘 I/O 过慢（HDD/SDD 一样卡）、主机响应迟钝没反应、运行更新耗时大半天，期间 CPU 效能满载或时处于半宕机状态等等糟心体验，还贵。贵，是毋庸置疑的，毕竟产品品牌定位就是高端货，不可能做到灵车的价格。但我想说的是很多时候产品本身并无问题，只是食用姿势不对。
Swap in Linux is the equivalent of virtual memory in Windows – a space on a disk that is used when the system runs out of RAM. For some reason unknown, many cloud instances are deployed without any swap.
On a cloud instance with a slow disk, running the dreaded
apt update && apt upgrade could take an eternity. But what if I tell you it may actually not be a disk IOPS issue?
Currently, Cloud DNS name servers return resource record sets in the order in which they were defined.
In alignment with DNS industry practices, Cloud DNS name servers will begin randomizing the order of the resource record sets starting on March 27, 2020. This will apply to both public and private Cloud DNS zones.
Azure’s supplied Linux images come preinstalled with the Azure Linux Agent, a process that manages virtual machine interaction with the Azure Fabric Controller, such as providing the oh-so-useful availability status and the VM name to Azure. It also performs self-updates, by the way.