>From your post and like i have 3.5.20 i should fine with this version. Like i have worker > 1 its an SMP setup , correct? Probably i should be missing the -n, that config is the config file of the first instance, the other instance is more or less the same, but: pid_filename (/var/run/squid.pid vs /var/run/squid81.pid) http_port (80 vs 81) visible_hostname (squid_80_${process_number} vs squid_81_${process_number}) access_log (/var/log/squid-80/access80_${process_number} vs /var/log/squid-81/access81_${process_number} ) cache_log (/var/log/squid-80/cachelog80_${process_number} vs /var/log/squid-81/cachelog81_${process_number}) In RHEL i start squid with systemctl start squid.service and systemctl start squid81.service. This is multi-instance, correct? i think i followed https://wiki.squid-cache.org/MultipleInstances. Can you confirm that in squid config is OK? You pointed to me "-n" i don't have it anywere... In /usr/lib/systemd/system/squid.service (i have another squid81.service) i have: ... EnvironmentFile=/etc/sysconfig/squid ExecStart=/usr/sbin/squid $SQUID_OPTS -f $SQUID_CONF ... the EnvironmentFile: # default squid options SQUID_OPTS="" ... # default squid conf file SQUID_CONF="/etc/squid/squid.conf" If understood what you said i must put in SQUID_OPTS "-n squid" and "-n squid81" in the other instance startup script. Did i understand correctly? Thanks, Carlos -- Sent from: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-Users-f1019091.html _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users