[dnsdist] dnsdist restrict udp source port
remi.gacogne at powerdns.com
Thu May 11 10:35:45 UTC 2023
On 11/05/2023 10:47, Mahdi Adnan via dnsdist wrote:
> Is it possible to restrict dnsdist to a certain port range, something
> similar to what pdns have "udp-source-port-min, udp-source-port-max,
> or udp-source-port-avoid"? I couldn't find such an option on the man
> page or in the documentation.
I'm afraid there is no such option, dnsdist is relying on the operating
system to get random source ports.
In theory you could set a source port in addition to an address in the
'source' parameter of "newServer" when defining a backend and then only
this port will be used to reach the backend, but this will not not work
if you want to use more than one source port using the 'sockets'
parameter, and more importantly will prevent dnsdist from opening more
than one TCP connection to the backend which is very likely not what you
PowerDNS.COM BV - https://www.powerdns.com/
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 488 bytes
Desc: OpenPGP digital signature
More information about the dnsdist