HI Guys, I have a problem where the helpers are exiting after a period of time in an external_acl_type setup. The acl is defined as follows: external_acl_type portal_page ipv4 children-idle=5 children-startup=5 ttl=60 negative_ttl=0 concurrency=20 %SRC /usr/local/bin/portal-authenticator portal-authenticator is a Golang program that runs indefinitely. I have turned on debug_options ALL,1 82,9 but that has not indicated why the helper exits. If i run the helper manually I can leave it for days without it exiting. I have bumped up debug_options to ALL,9 to see whether there is anything else I can see but so far nothing. Here is an extract from cache.log (the last log entry been related to the bug 3751): 2013/09/26 11:44:37.017 kid1| WARNING: portal_page #5 exited 2013/09/26 11:44:37.017 kid1| Too few portal_page processes are running (need 1/15) 2013/09/26 11:44:37.017 kid1| Starting new helpers 2013/09/26 11:44:37.017 kid1| helperOpenServers: Starting 1/15 'portal-authenticator' processes 2013/09/26 11:44:37.017 kid1| WARNING: no_suid: setuid(0): (1) Operation not permitted thanks -- .warren