It is advised to import the root CA certificate of the DoH server you have chosen to use for increased security. Currently DoH is not compatible with FWD type static entries, in order to utilize FWD entries, DoH must not be configured. Its main goal is to provide privacy by eliminating the man in the middle attacks (MITM). DoH uses HTTPS protocol to send and receive DNS requests for better data integrity. Starting from RouterOS version v6.47 it is possible to use DNS over HTTPS (DoH). Note: regexp entries are case sensitive, but since DNS requests are not case sensitive, RouterOS converts DNS names to lowercase, you should write regex only with lowercase letters. This will fordward all subdomains of "" to server ip dns static> add regexp=".*\\.example\\.com\$" forward-to=10.0.0.1 It is also possible to forward specific DNS requests to a different server using FWD type. To add a static DNS entry for to be resolved to 10.0.0.1 IP ip dns static> add name= ip dns static> printįlags: D - dynamic, X - disabled, R - regexp Regular expression matching is significantly slower than of the plain entries, so it is advised to minimize the number of regular expression rules and optimize the expressions themselves. For example, if you need to match anything within domain but not all the domains that just end with, like use regexp=".*\\.example\\.com\$" Remember that the meaning of a dot (.) in regular expressions is any character, so the expression should be escaped properly. You can, however, add an additional plain record with the same IP address and specify some name for it. Reverse DNS lookup (Address to Name) of the regular expression entries is not possible. Available values are: A, AAAA, CNAME, FWD, MX, NS, NXDOMAIN, SRV, TXT Regular expressions are checked first, then the plain records.ĭNS name to be resolved to a given IP address. The list is ordered and is checked from top to bottom. In case an entry does not conform with DNS naming standards, it is considered a regular expression and marked with ‘R’ flag. The server is capable of resolving DNS requests based on POSIX basic regular expressions, so that multiple requets can be matched with the same entry. For example, resolving any DNS request for a certain set of domains (or for the whole Internet) to your own page. This feature can also be used to provide fake DNS information to your network clients. It allows you to link the particular domain names with the respective IP addresses and advertize these links to the DNS clients using the router as their DNS server. The MikroTik RouterOS has an embedded DNS server feature in DNS cache. Other record types may have different contents of the data field (like hostname or arbitrary text) This menu provides a complete list with all DNS records stored on the serverĭNS data field.
This menu provides a list with all address (DNS type "A") records stored on the server To set 159.148.60.2 as the primary DNS server and allow the router to be used as a DNS server, do the ip dns> set servers=159.148.60.2 \ Note: If allow-remote-requests is used make sure that you limit access to your server over TCP and UDP protocol. When both static and dynamic servers are set, static server entries are more preferred, however it does not indicate that static server will always be used (for example, previously query was received from dynamic server, but static was added later, then dynamic entry will be preferred). List of dynamically added DNS server from different services, for example, DHCP. Shows the currently used cache size in KiB Servers ( list of IPv4/IPv6 addresses Default: ) Note that this setting must be configured taking into account query-server-timeout and number of used DNS server. Specifies how long to wait for query response in total. Specifies how long to wait for query response from one server Max-udp-packet-size ( integer Default: 4096) Specifies how much concurrent TCP sessions are allowed Max-concurrent-tcp-sessions ( integer Default: 20) Specifies how much concurrent queries are allowed Max-concurrent-queries ( integer Default: 100) Shorter TTL received from DNS servers are respected.Ĭache-size ( integer Default: 2048) In other words, cache records will expire unconditionally after cache-max-ttl time. Specifies whether to allow network requests
When the remote requests are enabled, the MikroTik router responds to TCP and UDP DNS requests on port 53.ĭNS facility is used to provide domain name resolution for router itself as well as for the clients connected to it.Īllow-remote-requests ( yes | no Default: no) Moreover, MikroTik router can be specified as a primary DNS server under its dhcp-server settings. A MikroTik router with DNS feature enabled can be set as a DNS server for any DNS-compliant client.
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