Setting up Unison
To use any of Unison's features, you must configure access to at least one Usenet server.
Adding a Usenet server
To add a Usenet server:
- Choose Unison > Servers > Edit Servers...
- Click the + button:

- With the new server selected, fill out the form fields like so:

- Description: A name for this server. You can use any name that makes sense to you.
- Server Address: The internet address of this server, such as news.panic.com. This address, as well as the other following connection details, should be obtained from your Usenet service provider.
- Port: Most Usenet servers use port 119 for standard connections and port 563 for secure connections, but if your server requires the use of a different port, enter it here.
- Use SSL: If the server expects a secure (SSL) connection, check this box
- User Name and Password: If the server requires authentication, enter your user name and password for the server.
- Backup Server: If you subscribe to more than one server, you can configure another server to act as a fallback server for this one in the event that a particular post is not available. If you only use one server, leave this set to None.
- Load headers from Backup Server: If enabled, Unison will request newsgroup headers from the backup server instead of this server. This is desirable in situations where you have a less expensive primary server with poor retention, and a more expensive backup server with better retention, as it will show you all the items you have access to, but only download them from the backup server if they aren't available on this server.
- Connection Limit: Specifies the maximum number of simultaneous network connections that will be made to this server.
- Limit transfers to... If enabled, all transfers to or from this server combined will consume no more than the specified amount of bandwidth, given in kilobytes-per-second.
Deleting a Usenet server
To delete a Usenet server:
- Choose Unison > Servers > Edit Servers...
- Click the server you wish to delete
- Click the - button:

- Click OK when asked for confirmation
Switching servers
To quickly change from one server to another, choose a new server from the Unison > Servers sub-menu.
Configuring a newsgroup to use a specific server
If you use more than one Usenet server, you can choose which server you want to use on a newsgroup-by-newsgroup basis. Refer to the "Changing newsgroup preferences" section of Managing Newsgroups for instructions.