Vallum block base on DNS resolved to underlying IP

Vallum application firewall
kiresp
Posts: 1
Joined: Tue Oct 11, 2016 7:08 am

Vallum block base on DNS resolved to underlying IP

Postby kiresp » Tue Oct 11, 2016 7:28 am

Your application is very easy to use and I've been trying to do some configurations on one particular app.
The app accesses a URL which is on a Domain on Dynamic DNS.
I have blocked access to Everyone, and attempted to add the Allowed Address, for example abcxyz.dyndns.dk.
This then appears to add the IP address it resolved at the time, not the address itself, so this rule will work only until the Dynamic DNS is updated ? I'll keep this rule for a while and see how it goes. Anyone else come across this ?

hany
Posts: 373
Joined: Wed Dec 10, 2014 5:20 pm

Re: Vallum block base on DNS resolved to underlying IP

Postby hany » Wed Oct 12, 2016 3:40 pm

This then appears to add the IP address it resolved at the time, not the address itself


that's true, Vallum never stores names, it only deals with real IP addresses, so every time you add a hostname Vallum resolves it and stores the IP address inside the app rule set. In case of dynamic addresses, unfortunately, if the related IP address changes, Vallum rule set will not reflect that change.
Consider it as a Vallum limitation. We may improve that in future releases :)


Return to “Vallum”

Who is online

Users browsing this forum: No registered users and 1 guest