How to use cloudspace on Linux

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If you want to use webdav space with Linux there exist various ways to connect this space to a Linux system.

How to protect a ssh server from internet attacks

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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.
 

How to debug rewrite rules without Apache access ?

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Apache rewrite rules are very powerful to rewrite URLs of a website by using the .htccess file. Unfortunately there is no way to debug these rulesif you don't have any access to the Apache installation. That's a common issue of users of managed servers. YOu have to execute a trial and error cycle in order to get your rules right. If you follow some rules you will be successfull to create your rules and don't affect any visitors of your website.

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How to create a secure OpenVPN on Raspberry

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Raspberry PI owners should make sure access to their Pi from the internet is secure. It's possiblet o use ssh tunneling but the most secure and universal method is to use OpenVPN. That way all ports on Pi can be accessed from a remote client via the internet in a secure way. The following article describes how to install and configure OpenVPN on Pi and how to install and configure an OpenVPN client to access your Pi from the internet on a secure way. This configuration uses the simple variant which only allows one client at a time to connect and is suffient in most cases. The client configuration description covers Linux and Windows7.

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