avahi-utils Zeroconf support libdb-4.1 is an old package not easily found. I downloaded the file libdb4.1-4.1.25-9mdk.i586.rpm and then used the program alien to convert the rpm package to a debian package using the command: sudo alien -c libdb4.1-4.1.25-9mdk.i586.rpm. To install the debian package I used the command: sudo dpkg -i libdb4.1-4.1.25-10_i386.deb.