hi i was configuring squid-2.5.STABLE5-4.fc2 /usr/sbin/squid -z after typing this command. an error message came up. below is the error message. FATAL: Could not determine fully qualified hostname. Please set 'visible_hostname' Squid Cache (Version 2.5.STABLE5): Terminated abnormally. CPU Usage: 0.009 seconds = 0.006 user + 0.003 sys Maximum Resident Size: 0 KB Page faults with physical i/o: 0 Aborted thanks for your help. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.772 / Virus Database: 519 - Release Date: 10/1/2004