Yesterday evening, Med did a routine restart of squid on chloe and squid wouldn't restart. It turned out DNS wasn't working. Actually, DNS wasn't working on all 3 Paris machines.
1) DNS input was firewalled, apparently 2) DNS servers were set to servers in Florida, through ppp tunnel (didn't work)
So I temporarily set up the machine to: 1) not firewall stuff 2) Used lost-oasis DNS servers