Check_MK Werk 5526: check_dns: Do not pass off the host's IP address as a default DNS server address

ID: 5526 Title: check_dns: Do not pass off the host's IP address as a default DNS server address Component: Checks & agents Level: 1 Class: Bug fix Version: 1.5.0i2 Previously, in case of the DNS server address not being specified, Check_MK would fill it in with the host's IP address, causing the check to time out. This has been fixed. Thanks to Björn Müller for the patch!