Addendum OSI model / PDUs

I would  like to make a small addendum to my previous post about the OSI model and PDUs. What was named quickly in the Network+ videos was what protocols actually function on which layers, which I found interesting. So let me enrich you with a few examples! To clarify a little bit, after mentioning the…

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OSI model and PDUs

Two concepts from my Network+ study: the OSI model and PDU. OSI stands for Open Systems Interconnect and is used as a conceptual model to ease data transmission and communication. Read more about it here and here. PDU stands for Protocol Data Unit and describes the unit that is being used on a particular layer…

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CentOS 7 FTP server setup

I needed FTP access to my VPS since there was a WordPress update and I didn’t feel like it to do it manually: FTP / SFTP / SCP to your server and do the update from there. Fortunately installing and configuring it is easy. After configuration you can immediately login with an admin user that…

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