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#vps 一年一度的 VirMach 闪购活动以令人哭笑不得得方式落下帷幕。 🐂最后一台VPS是 2222 水牛城传家宝 💬留言 -> “水牛城滞销，帮帮我们” 🐂倒数第二台VPS 是 502水牛城传家宝 💬留言 -> “无限 502 ” 各位mjj终于可以睡个好觉了 VirMach 我们明年再见！（再也不见

#VPS 群友昨晚没合眼，抢到了一台圣何塞的 Virmach，我来做一个简单的评测 👉 配置： 1C 512 MB RAM 15 GB SSD硬盘（raid 10）500GB@1Gbps，💰 $ 8.92 / 年 ip 是圣何塞的，ColorCrossing（cc机房）老实说没啥好感 👉 硬件测试情况： 超售是肯定超售了的，CPU 尤其是内存表现惨不忍睹，io 是祖传的 vir 石头盘速度 👉 路由情况： 移动去程 cogentco，联通去程 he，电信去程 gtt；移动回程动态，联通回程 he，电信回程 gtt；国际方面，ntt、gtt、he、cogentco 多线接入 👉 测试报告： https://paste.ubuntu.com/p/zfDnrNrSdy/ 频道：@NewlearnerChannel

Still a Windows user? Know a Windows user? Consider switching to Linux for these possible reasons. https://fosspost.org/7-reasons-to-switch-to-linux-from-windows/ #Linux#Windows#OpenSource

http://www.aparat.com/v/Lw4Zg 08 Crawling The Web _ 04 Crawling The Web Definition ‏ #request #urllib #os

http://www.djangocrew.com/blog/how-startstopget-google-compute-instance-python/ In this post we gonna tell you about How to start/stop/get for the #google compute instance with python. Sometimes we don’t want (or need) a compute engine instance running 24hs every day but we need to run #task/s periodically. To solve this we can have an app engine task runing using cron service to start the VM instance. Once the VM has started, it can have a startup script that runs the actual task it was needed for and then stops the machine. #REST#Linux#Windows#requests

Take the following quiz about the #Linux command line (20 questions) and see how much you would score in these very basic questions! https://quiz.fosspost.org/quiz/introduction-to-linux-command-line-quiz/

Take the following quiz about software management in #Linux! Learn the basics of apt/dnf/zypper/rpm/dpkg in few minutes: https://quiz.fosspost.org/quiz/software-management-from-the-command-line/

Linux Kernel 5.9 was released, get to know the new features from Kernel Newbies website: https://kernelnewbies.org/Linux_5.9 #Linux

Umbrel An interesting #Linux#distro to self-host open-source software: https://itsfoss.com/umbrel-review/ @itsfoss_official #umbrel#selfhost#cloud

#Linux devices have a unique identifier called machine-id. Here is how to change it. Posted on February 24, 2021 What is a machine-id, and why should you randomize it? From the machine-id man pages, it is defined as: This ID uniquely identifies the host. It should be considered “confidential”, and must not be exposed in untrusted environments, in particular on the network. If a stable unique identifier that is tied to the machine is needed for some application, the machine ID or any part of it must not be used directly. https://www.man7.org/linux/man-pages/man5/machine-id.5.html In an effort to promote privacy, having a unique and unchanging identifier tied to your device seems like the wrong approach. It’s quite possible that poorly coded or even maliciously coded software could fetch this ID from your system. Let’s make sure that even if that does happen, that the value is constantly changing so that your device can not be uniquely identified as your device. This is an incredibly simple and quick adjustment to your default Linux system. What we’re doing is showing you how to either adjust this value manually by hand, or by running a cronjob to change this value every minute with a new, randomized value. Before we begin, a disclaimer: We’ve tested this on our own work desktops and development environments and I’ve tested it on my daily driver desktop. We have not found that anything has ‘broken’ because of this, but this is untested in many environments and may not be suitable for your use. It’s always reversible if you later wish to continue with a single, uniquely identifying ID attached to your device(s). Debian / Ubuntu systems To check your machine-id, open up your terminal and enter the following: cat /etc/machine-id The output should look a little something like this: a9976154f0084a3782892638656ad9fd You’ll note that this value is also stored in /var/lib/dbus/machine-id and that a symlink between the two exist. Any change to one file, will be reflected in the other. me@virtbox-testing:~$ cat /etc/machine-id a9976154f0084a3782892638656ad9fd me@virtbox-testing:~$ cat /var/lib/dbus/machine-id a9976154f0084a3782892638656ad9fd If you reboot your device, you’ll notice that this value remains unchanged. So, let’s change it ourselves! Method 1: Manually. Method 2 is automatically, every minute, as ran by a cron-job. If you don’t want to fully commit to that, you can change your machine-id by hand manually whenever you feel like it. Step 1, remove the old machine-id file. sudo rm /etc/machine-id Step 2, recreate the machine-id file. sudo systemd-machine-id-setup Step 3, confirm that /etc/machine-id (and /var/lib/dbus/machine-id) now show a new value, different from the original. cat /etc/machine-id && cat /var/lib/dbus/machine-id That’s it! You should see two lines in your output with matching IDs that differ from the original machine-id you had in the beginning. me@virtbox-testing:~$ cat /etc/machine-id && cat /var/lib/dbus/machine-id a78badce3e73beced163bbef7e55232a a78badce3e73beced163bbef7e55232a You’ve changed your device’s uniquely identifying machine-id. This change will survive device reboots and will remain the same until you create a new one. Method 2: Changing every 1 minute, automatically. If the above didn’t satisfy your needs, than feel free to automate the creation of a new machine-id by creating a cronjob entry that will generate a new ID every minute. Step 1, open up your crontab file. sudo crontab -e Step 2, enter at the bottom of the file the following: */1 * * * * sudo rm /etc/machine-id && sudo systemd-machine-id-setup Save and Exit. Step 3, wait a minute and confirm that your machine-id value has changed: cat /etc/machine-id && cat /var/lib/dbus/machine-id You should see two new matching values, that differs from the original value you had at the start. Wait a minute and run the step 3 command again, and you’ll see that these values have changed.