diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh index 4c75f246..837e1778 100755 --- a/advanced/Scripts/piholeDebug.sh +++ b/advanced/Scripts/piholeDebug.sh @@ -922,16 +922,20 @@ dig_at() { # s/\/.*$//g; # Removes CIDR and everything thereafter (e.g., scope properties) addresses="$(ip address show dev "${iface}" | sed "/${sed_selector} /!d;s/^.*${sed_selector} //g;s/\/.*$//g;")" - while IFS= read -r local_address ; do - # Check if Pi-hole can use itself to block a domain - if local_dig=$(dig +tries=1 +time=2 -"${protocol}" "${random_url}" @"${local_address}" +short "${record_type}"); then - # If it can, show success - log_write "${TICK} ${random_url} ${COL_GREEN}is ${local_dig}${COL_NC} on ${COL_CYAN}${iface}${COL_NC} (${COL_CYAN}${local_address}${COL_NC})" - else - # Otherwise, show a failure - log_write "${CROSS} ${COL_RED}Failed to resolve${COL_NC} ${random_url} on ${COL_RED}${iface}${COL_NC} (${COL_RED}${local_address}${COL_NC})" - fi - done <<< "${addresses}" + if [ -n "${addresses}" ]; then + while IFS= read -r local_address ; do + # Check if Pi-hole can use itself to block a domain + if local_dig=$(dig +tries=1 +time=2 -"${protocol}" "${random_url}" @"${local_address}" +short "${record_type}"); then + # If it can, show success + log_write "${TICK} ${random_url} ${COL_GREEN}is ${local_dig}${COL_NC} on ${COL_CYAN}${iface}${COL_NC} (${COL_CYAN}${local_address}${COL_NC})" + else + # Otherwise, show a failure + log_write "${CROSS} ${COL_RED}Failed to resolve${COL_NC} ${random_url} on ${COL_RED}${iface}${COL_NC} (${COL_RED}${local_address}${COL_NC})" + fi + done <<< "${addresses}" + else + log_write "${TICK} No IPv${protocol} address available on ${COL_CYAN}${iface}${COL_NC}" + fi done <<< "${interfaces}" # Finally, we need to make sure legitimate queries can out to the Internet using an external, public DNS server