DNS - Slow Resolve Issue
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Hey All,
Odd issue happening and would love some help on where to start troubleshooting. I'm getting very slow response times for DNS lookups (browsing to google.com, etc.). I can fix this when I reboot pfSense and all works fine for about 5 minutes, then the same issues starts happening again. DNS is set to my local DNS server, however I ruled that out as the issue as it's the same problem if I originate from that machine.
Also the other odd thing is that if I change my DNS to 8.8.8.8 everything seems to work fine again. This seems like an issue/setting with pfSense due to the fact that when I reboot the box it works just fine using my internal DNS for about 5 minutes, then it slows way down again.
Anyone have an idea?
Cheers,
Miscue. -
Also to add:
- WAN connection is fine - good up/down speeds.
- Internet becomes sluggish when trying to brows from behind pfSense. This is after there DNS slowness appears as well.
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Added some Firewall blocking logs I'm seeing. Not sure if they are related.
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I don't think it's the above firewall issues. Another important update that I found while searching the forums. I'm using PPPOE for the WAN connection (DSL modem in bridge mode on the other end). If I disconnect/reconnect that interface (Gets another IP address) the connection works fine again.
Symptoms come back after about 5 minutes again …
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So you have pfsense using what for its own dns? And where do your clients point to pfsense or your some other dns? Is this a forwarder or a resolver?
Clearly those are just out of state, but pfsense can not resolve them via ptr.. which I would hope your own local IP 172.16.10.105 should have a ptr.. What is your dhcp pfsense or something else? That 17.110 does not resolve but its owned by apple
;; QUESTION SECTION:
;218.229.119.17.in-addr.arpa. IN PTR;; AUTHORITY SECTION:
17.in-addr.arpa. 7200 IN SOA gridmaster-ib.apple.com. hostmaster.apple.com. 2010092746 1800 900 2592000 7200
