Werk #13170: check_dns: added option to use default DNS server
| Component | Checks & agents |
| Title | check_dns: added option to use default DNS server |
| Date | Oct 27, 2021 |
| Checkmk Edition | Checkmk Raw (CRE) |
| Checkmk Version | 2.0.0p14 2.1.0b1 |
| Level | Trivial Change |
| Class | New Feature |
| Compatibility | Compatible - no manual interaction needed |
If no DNS server is specified the error message "CRITICAL - Plugin timed out while executing system call" could have been reported. The reason for this error is that the check_dns option "-s" is used with the hostname as DNS server. The host might not be a DNS server and a timeout occurs.
The new option "Use default DNS server" will omit the option "-s" for check_dns. In this case the default DNS server of the checkmk server will be used and no timeout occurs any more.
