> squid -v > Squid Cache: Version 2.5.STABLE13 > configure options: --prefix=/usr --exec_prefix=/usr --bindir=/usr/sbin > --sbindir=/usr/sbin --libexecdir=/usr/lib/squid --sysconfdir=/etc/squid > --localstatedir=/var/spool/squid --datadir=/usr/share/squid > --enable-async-io --with-pthreads --enable-storeio=ufs,aufs,diskd,null > --enable-linux-netfilter --enable-arp-acl > --enable-removal-policies=lru,heap --enable-snmp --enable-delay-pools > --enable-htcp --enable-poll --enable-cache-digests --enable-underscores > --enable-referer-log --enable-useragent-log > --enable-auth=basic,digest,ntlm --enable-carp --with-large-files - You have a typical Redhat RPM based install; the disadvantage that they come with all configure options enabled; this can lead to effective unwanted complexity when dealing with problems, such as you are experiencing. I advise to make your own BUILD and install of Squid; at the configure-stage, use only those options which you need. While you are at it; take the opportunity to fetch the latest STABLE release before starting. M.