martinshjemmeside.dk

Archive

  • Article
    HTC S730

    I recently took delivery of my new work phone, an HTC S730. I’ve previously used an Ipaq to manage my work calendar, and I’ve been looking forward to having all those features in a single device. The phone arrived in a very stylish box. Once I’d removed the dust/promotional sleeve, all that remained was a completely…

  • Article
    Netiquette

    There are many unwritten rules regarding the use of Usenet, but the Danish groups have benefited from a large community of news enthusiasts who have set down some of the most important ones. The Danish hierarchy is far better regulated than many others, resulting in a high degree of order and usability. I therefore…

  • Article
    Disclaimer

    For a while, I included a link to this page in my Usenet signatures to address any questions about who I was representing in my posts I have worked for the current TDC for several years. My duties have been very varied. I have worked as a Windows and ISDN support technician. I have trained support staff and telecoms…

  • Article
    Terms and Conditions for the tele.internet.news service

    Back in the good old .dk days, Christian Mygind posted this satirical charter for the tele.internet.news-service group, a group populated by customers and employees of what was then Tele Danmark Internet. This group was set up so that TDC customers (split across several subsidiary, parent and subsidiary companies to…

  • Article
    Various quotes from Usenet

    The article below is from makr.dk and should be regarded as out of date. It dates from 2001 and has been retained solely for historical reasons. The article contains a number of quotes taken from Usenet and presented completely out of context. “There are some small rubber bands around the edge of a modern CD, and when…

  • Article
    Why does my download speed drop when I’m uploading at the same time?

    It is often the case that you cannot utilise your connection to its full capacity in both directions. This is a characteristic of TCP, which is the protocol used for most internet applications. TCP is a connection-oriented protocol, which means that it keeps track of whether the packets it sends arrive safely at the…

  • Article
    Reverse DNS for TDC customers

    TDC’s customers typically have a reverse DNS entry containing the name of the first router they encounter on their way to the internet. In principle, these routers may be located a long way from the customer’s address, but they can still provide an indication of an IP address’s approximate physical location. For ADSL…

  • Article
    The DOCSIS standard

    Peter Tirsek has written the following very detailed overview of the Docsis standard used to transmit internet via coaxial cables ---

  • Article
    How do you convert from kb/s to kB/s?

    It can be difficult to distinguish between the two terms ‘kilobits per second’ and ‘kilobytes per second’. A byte consists of 8 bits. You should therefore start by dividing the number of kbit by 8. Next, you need to subtract a percentage for overhead, which varies depending on the type of line. For ADSL, this is…

  • Article
    How do I receive email via SMTP on TDC’s residential ADSL lines?

    TDC’s residential ADSL products all block external connections to port 25, which is used for SMTP. SMTP must be used if you wish to run your own mail server and thereby host your own domain. This may be desirable if you need to use a large number of email addresses or similar. This restriction means that other email…

  • Article
    Tele Danmark Internet – Frequently Asked Questions (Slightly out of date)

    When I first started out in Windows support at what was then Tele Danmark Internet, this FAQ was posted in an internal newsgroup. It is probably one of the last of its kind; at any rate, I haven’t come across any more recent ones.