Hi all, I get squid-3.0.STABLE8 working well on centos 5.2 except trying to PURGE cached objects. The squid.conf is: [root@squid1 ~]# cat /usr/local/squid-3.0.STABLE8/etc/squid.conf | grep -v "#" | grep -v "^$" acl manager proto cache_object acl localhost src 127.0.0.1/32 acl PURGE method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny CONNECT http_access allow localhost PURGE http_access deny PURGE http_access allow all http_port 10.20.15.115:80 vhost vport http_port 10.20.15.113:80 vhost vport cache_peer 127.0.0.1 parent 80 0 no-query originserver hierarchy_stoplist cgi-bin ? access_log /usr/local/squid-3.0.STABLE8/var/logs/access.log squid refresh_pattern -i \.txt$ 60 90% 1440 reload-into-ims refresh_pattern -i \.html$ 60 90% 1440 reload-into-ims refresh_pattern -i \.jpg$ 60 90% 1440 reload-into-ims refresh_pattern -i \.bmp$ 60 90% 1440 reload-into-ims negative_ttl 0 visible_hostname squid1.example.com coredump_dir /usr/local/squid-3.0.STABLE8/var/cache when I issue [root@squid1 ~]# /usr/local/squid-3.0.STABLE8/bin/squidclient -p80 -m PURGE http://www.example.com/01.jpg HTTP/1.1 501 Method Not Implemented Date: Fri, 05 Sep 2008 15:15:09 GMT Server: Apache/2.2.9 (Unix) Allow: GET,HEAD,POST,OPTIONS,TRACE Content-Length: 213 Connection: close Content-Type: text/html; charset=iso-8859-1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>501 Method Not Implemented</title> </head><body> <h1>Method Not Implemented</h1> <p>PURGE to /01.jpg not supported.<br /> </p> </body></html> I compile the squid with [root@squid1 ~]# ./configure --prefix=/usr/local/squid-3.0.STABLE8 --with-large-files --with-filedescriptors=4096 --enable-snmp && make all && make install Can anyone help with the " HTTP/1.1 501 Method Not Implemented" ERROR? I remember that the configuration on squid-2.6.STABLE19 works fine. Thank you in advance. Yours, Xu Feng