final fixes

misc/install.func

@@ -101,6 +101,30 @@ network_check() {
       exit 1
     fi
   fi
+
+  # DNS resolution checks for GitHub-related domains (IPv4 and/or IPv6)
+  GIT_HOSTS=("github.com" "raw.githubusercontent.com" "api.github.com" "git.community-scripts.org")
+  GIT_STATUS="Git DNS:"
+  DNS_FAILED=false
+
+  for HOST in "${GIT_HOSTS[@]}"; do
+    RESOLVEDIP=$(getent hosts "$HOST" | awk '{ print $1 }' | grep -E '(^([0-9]{1,3}\.){3}[0-9]{1,3}$)|(^[a-fA-F0-9:]+$)' | head -n1)
+    if [[ -z "$RESOLVEDIP" ]]; then
+      GIT_STATUS+="$HOST:($DNSFAIL)"
+      DNS_FAILED=true
+    else
+      GIT_STATUS+=" $HOST:($DNSOK)"
+    fi
+  done
+
+  if [[ "$DNS_FAILED" == true ]]; then
+    fatal "$GIT_STATUS"
+  else
+    msg_ok "$GIT_STATUS"
+  fi
+
+  set -e
+  trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
 }
 
 # This function updates the Container OS by running apt-get update and upgrade