DNS resolution slow on first lookup
This may be pretty n00b, but I couldn't find too much on this problem via the forum search, the documentation, or Google, so I figure I did my official n00b search ;-)
Here is the issue: I have PFsense set up pretty much as an out-of-the box post wizard configuration running on a Soekris net5501 running the 1GB CF card installation. The firewall works awesome. Very nice piece of work. However, the one thing I have noticed is that the initial hit on a web page seems to take 6-10 seconds to get a response. Firefox alerted me that it was in the midst of looking up a site. Hence I went to a terminal on a client machine and did an nslookup of some random real domain. Sure enough the DNS lookup took 6-10 seconds. Subsequent lookups on that domain returned immediately due to the DNS cache. I decided to take this a bit further and tried logging into the SSH shell on my pfsense box and try the nslookup there. Exact same problem. Since I run my own DNS on a Linux machine internally for our company, I tried the nslookup on that machine and it was very fast… usually .2-2 seconds for the initial query (pre-cache).
Is there anything I can do to pfSense configuration to have it return faster for initial queries? Thanks in advance for answers.
GruensFroeschli last edited by
Did you configure your internal DNS server on "system –> general setup" ?
Did you also uncheck the box: "Allow DNS server list to be overridden by DHCP/PPP on WAN"
I've found that it doesn't even auto-configure DNS anymore since the last few nights' updates so this might be related.
DNS from DHCP should be fixed with any snapshot from late Saturday on.