Filterdns: host_dns: failed looking up

[cbrunet]

What does this error means? I have full of them into logs, but I cannot figure out where it comes from.

filterdns: host_dns: failed looking up "mailshell.net": hostname nor servname provided, or not known

Charles.

[jimp]

It means you are using that hostname in an alias or IPsec endpoint, and it cannot be properly resolved by your DNS server.

Indeed that hostname does not have a valid record. It comes back empty.

$ ping mailshell.net
ping: cannot resolve mailshell.net: No address associated with name
$ host mailshell.net
$
$ host -t mx mailshell.net       
mailshell.net has no MX record

So wherever you have that hostname, it isn't valid to use, since it must return an IP address to be used in firewall rules.

[cbrunet]

Yes, I understand that. But what I cannot figure out is where those hostnames are registred in pfSense. I though it was in Captive Portal Allowed Hostnames, but I removed all invalid hostnames, and I still get those errors in the logs.

Charles.

[jimp]

It can be anywhere a hostname is allowed: firewall aliases, IPsec endpoints, captive portal allowed hostnames, etc.

It might be easier to download a copy of the config.xml (From Diagnostics > Command) and then search through the file to see where it is.