This option enables or disables (default setting) the sending of SYSLOG messages in the case of DNS requests.
Note: This switch is independent of the global switch in the SYSLOG module under . If you enable this option to log DNS requests, the DNS server in the device sends the corresponding SYSLOG messages to a SYSLOG server even if the global SYSLOG module is disabled.
Each DNS resolution (ANSWER record or ADDITIONAL record) generates a SYSLOG message with the following structure PACKET_INFO: DNS for IP-Address, TID {Hostname}: Resource-Record.
The parameters have the following meanings:
- The TID (transaction ID) contains a 4-character hexadecimal code.
- The {host name} is only part of the message if the DNS server cannot resolve it without a DNS request (as in the firewall log, as well).
- The resource record consists of three parts: The request, the type or class, and the IP resolution (for example www.mydomain.com STD A resolved to 193.99.144.32)
- SNMP ID:
- 2.17.20.1
- Console path:
- Setup > DNS > Syslog
- Possible values:
- No
- Disables the logging of DNS requests and responses.
- Yes
- Enables the logging of DNS requests and responses.
- Default:
- No
