Sometime during the weekend, the ftp server on www2 decided that its license had expired. Until a new license could be obtained, the standard ftp server (wu-ftpd) was run. This led to some slow response (wu-ftpd operates under the xinetd master daemon) for much of the day. The vendor provided a new license key at 4:30 PM. This was installed, and ftp service was restored to normal.