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Category: VPS
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Safely upgrade from Debian 9 to Debian 10
It is jarring when you come across VPS providers in mid-2020 and they only provide up to Debian 9 (or Debian 8) for the OS image. Fortunately, it can be easily upgraded via a few commands, as depicted in this article.
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BuyVM/FranTech Ryzen VPS and Storage Slab review
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…
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LiteUnit LLC KVM-512 VPS Review
[Update Aug 2020] My VPS has been offline since the end of June and support tickets are no longer answered since. 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…
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RESUME variable error during system updates
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…
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Installing the latest version of Aria2 in Ubuntu 18.04 LTS
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…
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如何使用共享IP虚拟主机而不失霸气
本文会探讨一下不使用端口映射的情况下如歌使用共享 IP 主机。 关于独享与共享：有些特定场景是必须独享 IP 的，比如基于 SIP 协议的 VoIP 语音系统或 H.323/T.120 的网络视频会议设备都不能在共享公网 IP 的场景下运作。但其实很多时候你并不需要独享 IP 的主机。
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Azure 乞丐版 B1ls 的正确食用姿势 —— 压榨极致性能
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。
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Adding Swap Space in Linux
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.
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Apt update slow? Try this fix
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?
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Google Cloud DNS will serve randomized records from 27 Mar 2020
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.