Hi, use something like 'tcpdump' to see if the packets really arrive on your squid port. regards, --- Jan -----Original Message----- From: ning luwen [mailto:ningluwen@xxxxxxxxx] Sent: Mittwoch, 16. Juni 2010 07:56 To: squid-users@xxxxxxxxxxxxxxx Subject: help while using squid Hi, the problem goes: squid server ip like 211.83.105.* the client ip like 121.49.127.* the two machine can ping each other the squid.conf i change to : http_port 3128 acl all src 0.0.0.0/0 http_access allow all and this simply do not work, what should i do? ps: the system i use is ubuntu 10.04, and squid version is 3.0 regards, luwening