How to use a Synology to boot Raspberries with Netboot / PXE

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Raspberries can boot with netboot. Some folks also say per PXE, but in a strict sense it's not PXE, just netboot.

Anyhow, I own multiple Raspberries and starting with RPi3 they can boot with netboot. I did some evaluation on this and asked for support on the raspberrypi forum in this thread. Who is interested on this topic should read the thread. RonR helped me in the thread with his netboot expertise. In addition he also wrote a nice tool which helps to setup a netboot environment quickly on a Raspberry.

How to link from insided one shared folder into another shared folder on Synology DSM

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DriveSync is used to synchronize files from a mobile device into a team folder on DSM. The setup works reliably.

In some cases, it is useful to access the same data through an additional path inside a different shared folder. This can be achieved on Linux/DSM using a bind mount, which creates an alternative access point to the same underlying directory.

The steps below describe the setup in detail.

Read more: How to link from insided one shared folder into another shared folder on Synology DSM

bash redirections - how to

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I just stumbled upon a very nice and detailed article, which explains bash redirections very detailed. When you finish reading the article you know everything about redirections. This article is one of a sequence of five 'bash one-liners' articles - Working with files, working with strings, working with history and navigating around, which are also very interesting and helpful.

screen - a useful tool for the commandline

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Some time ago somebody told me about 'screen' in an irc chat. He just started to use screen and enjoyed the power of this command and wanted to share this experience with me. I now use this tool very often when I work on a remote system and other people should be able to follow the command I entered and which results I get. This was in particular useful when people asked for help because they had issues with Linux and they allowed me to access their system. That way they easily were able to follow all the activities I executed on their system. But it's also for other tasks very helpful and I now use it quite often.
I just checked the man page of screen and detected there are much more features available. I summarize the features on the following pages and list useful keyboard shortcuts.
 

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