I have installed and configured Squid 3 Stable 6, with the following options: ./configure --prefix=/usr/local/squid --enable-linux-netfilter --enable-arp-acl --enable-ssl --enable-snmp make all make install It works correctly and completely for days and even weeks, but all of a sudden, and without reason it stops working, and there is nothing I can do to put it again. I have tried with the following aids, but nothing happens. /usr/local/squid/sbin/squid -k reconfigure /usr/local/squid/sbin/squid -k parse /usr/local/squid/sbin/squid Even when I execute "ps ax | grep squid" the process of squid does not appear. I have even restarted the server and executed squid from zero, but it never comes. That is why I have had to format and reinstall Linux and Squid. Any suggestion?