Dear All At one of installation (Fedora Core 3), requirement arises for squid compilation with --enable-arp-acl. I tried to install squid-2.5-STABLE8. Steps followed -. (1) removed running squid by running - # rpm -e squid (2) untarred the tar ball squid squid-2.5.STABLE8.tar.gz (3) run # make distclean (4) copied the running squid comilation option by running 'squid -v' from a working squid box. Appended --enable-arp-acl in the option list. Thus configured the source as below. ./configure --host=i386-redhat-linux --build=i386-redhat-linux --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --exec_prefix=/usr --bindir=/usr/sbin --libexecdir=/usr/lib/squid --localstatedir=/var --sysconfdir=/etc/squid --enable-poll --enable-snmp --enable-removal-policies=heap,lru --enable-storeio=aufs,coss,diskd,null,ufs --enable-ssl --with-openssl=/usr/kerberos --enable-delay-pools --enable-linux-netfilter --with-pthreads --enable-basic-auth-helpers=LDAP,NCSA,PAM,SMB,SASL,MSNT --enable-ntlm-auth-helpers=SMB,winbind --enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group,winbind_group --enable-auth=basic,ntlm --with-winbind-auth-challenge --enable-useragent-log --enable-referer-log --enable-arp-acl (5) Finally run 'make' and 'make install'. I DIDNOT GET ANY ERROR OR WARNING. COMPLITE LOG ARE ON http://nansari.cjb.net/squid.html PROBLEMS ARE- - THOUGH I AM USING EARLIER WORKING squid.conf (http_port 8080) , AND SQUID IS BEING STARTED BY RUNNING '/usr/sbin/squid -D &' , 'TELNET IP_OF_SQUID 8080' fails - GIVING ERROR " CONNECTION REFUSED". With earlier squid binary it was allowinng the telnet on 8080 port. - Just after running '/usr/sbin/squid -D &' I got below result. [root@test sbin]# ps -e|grep squid 7071 ? 00:00:00 squid BUT after some time - [root@test sbin]#ps -e|grep squid [root@test sbin]# (means squid died). - Nothing is being logged in /val/log/squid/cache.log or /val/log/squid/access.log Seeking help.