When you open KRN, for the first time, you will be taken step by step through configuring your personal details. Don't worry if you get this wrong, or don't understand what's being asked, the entries you make here can be changed at any time through the options dialogs.
The first dialog box you will see says "Please enter your email address". This is the email address that will be shown on your posts as the From address. Press the OK button when you are done.
The next dialog is entitled "Please enter your real name". Again, this is the name that your posts will be shown as coming from. Different newsgroups have different ideas on what is suitable, whether entering your real name, or a "handle" (nickname). Press the OK button when you are done.
Please enter your organization's name is the next question. You may consider this optional. Press the OK button when you are done.
Now for the important part. The next dialog asks you to Please enter your NNTP server name. This information you should get from your ISP, unless you are using LeafNode or a similar application to provide a local newsserver. In that case, you could enter "localhost". Press the OK button when you are done.
The next question is "Please enter your SMTP server name". This is the address of your outgoing mail server, not the news server. This is used when you reply privately to a newsgroup poster, and you should already know the name of your mail server from setting up your email client. The most usual entry here is smtp.yourisp.com or something similar, or if you have sendmail or another local mail server application running, you may need to enter the address of your own machine, or localhostPress the OK button when you are done.
At this point you're done with the initial setup, and in most cases you're ready to start reading news. Fine tuning the configuration, and additional options that you may want or need to configure is covered in the Options section. In the meantime, we'll move on to the user interface, and how to use KRN