Active servers...
Active servers (especially Web and mail servers) may need extra room in /var/ for log files. Mail servers also use this space for the mail queue, and the default mail system also stores incoming mail here (you may also want to consider making /var/mail/ a separate partition in these cases).
Web browsers such as Mozilla use /tmp/ for storing files while they are downloaded. This file system must be big enough to hold any large files that you want to download through there, plus any other files that may be there at the same time.
Note that with the multiuser partitioning scheme, the /home/ partition generally ends up receiving most of the space on larger disks. This usually makes it a good place to "borrow" space from when you want to make other partitions larger. However, because partman (the partitioning tool used by the Debian installer) has already mapped out the partitions, you actually need to delete /home/ and then re-add it after you increase the size of the other partition. If there are other partitions between /home/ and the one that you are increasing in size, you also need to delete them, and then add them back in an appropriate order.
10. If a network connection was not configured during stage 1, you will be given the chance to configure a dial-up PPP connection to an Internet service provider. This is performed using the pppconfig program, which is explained in further detail in the "Dial-Up PPP Connections" section later in this chapter. Keep in mind that the system will try to dial-up once this step has completed.
If you're using a broadband connection that requires PPPoE, press Alt+F2, log in as root, and run the pppoeconf program. You can still finish the system installation if you are unable to connect to the Internet at this time. However, you may later need to manually edit your APT sources mirror list (as described in the "Package Management Using APT" section in this chapter) before all of the packages that you want are available for easy installation.