On 12/01/21 6:30 pm, Reshma V Kumar wrote: > Hi ! > This is the error from cache.log file > 2021/01/11 23:21:07 kid1| idnsSendQuery FD -1: sendto: (0) No error. "-1" is a closed socket. It looks like there is no UDP port open for sending traffic to your DNS server(s). You are starting Squid with root privileges right? Amos