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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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A ssh server is the most common way to access a server which is connected to the internet. Everybody who knows a userid and password or guesses them can access the server if the standard ssh configuration is used. If he succeeds to get root access the server can be compromized by the attacker and will be used as ftp-server, DOS client, mail SPAM sender ... and the owner of the server is liable for any activities of the attacker. That's awkward and can become quite expensive. The following page describeshow to modify the sshd config file to make the ssh server secure and protectagainst any attacks.
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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