If two computer systems are to exchange data, they must agree on a common protocol basis. For example, the selected transport protocol determines how the information is to be transferred. One of the more recent representatives of this protocol division is the Stream Control Transmission Protocol (SCTP), which the IETF (Internet Engineering Task Force) published in 2000 as an alternative to known...
Raspberry Pi is an inexpensive small form factor PC that can behave like a standard computer in many respects. Users can use this innovative mini-computer for all kinds of functions, from setting up an operating system to surfing the web, to using it as a server or a media center, and much more besides. Discover 10 interesting Raspberry Pi projects to try out at home.
If you’re developing a website, it’s important to regularly ensure that all the elements function as intended. Although there are no specific tools required for creating a basic info page with static content, it’s not possible to preview a project containing dynamic elements without some additional tools. The simplest solution is to use an all-in-one development environment like MAMP.
Manually organizing a large local network can be a nerve-wracking and very complicated matter. Without your own DHCP and DNS servers to support you in the distribution of addresses and name resolution, all IPs would have to be entered manually and also updated independently if changes are made in the network. Zeroconf implementations like Bonjour, which connect network components without almost no...
When computer information is sent in TCP/IP networks, it is first decompressed into individual data frames. In this way, you can transfer data of nearly unlimited size. The frames also contain the target system’s MAC address, without which a transmission would not be possible. If the physical address is not known, the sender must first be determined using the ARP Address Resolution Protocol. Here,...
Both the private Raspberry Pi IP address and the public IP address of the internet connection are constantly changing for most users. Such dynamic IP addresses aren’t practical for the use of a minicomputer. But if you want to use server software effectively on your Raspberry Pi, you need a static IP address for the computer in the local network. The internet access used to make the server...
A man-in-the-middle attack is a deceitful espionage attack which aims to listen, record, or manipulate sensitive data being sent between unsuspecting internet users. To do this, hackers rely on methods that enable them to position themselves, unnoticed, between two or more computers communicating with one another. We introduce you to some well-known attack patterns and countermeasures that can be...
If you’re connected to an internet router and power on your computer, it automatically obtains the necessary network parameters, such as the IP address, subnet mask, or DNS server. This is made possible by the Dynamic Host Configuration Protocol (DHCP), which simplifies address assignment when connecting to the internet and makes setting up local networks easy as pie.
Invitations to dinner parties; updates about work; an away day with the college football team: if you’re not using WhatsApp, you run the risk of missing out on important information. With more than a billion worldwide users to date, the app is more popular than almost any other on the market. But this networking comes with its disadvantages too: the main one being that WhatsApp shares user data...
In so far as is possible, the communist state of North Korea has managed to shut itself off from the rest of the world. However a western IT expert recently succeeded in sneaking a peek at their internet domains and as a result we now know that there are only 28 domains for the entire country. From recipes to maritime affairs, here you’ll find an insight into what a North Korean can find online.
