Host Engineering Forum
General Category => Do-more CPUs and Do-more Designer Software => Topic started by: plcnut on November 25, 2013, 02:47:07 PM
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I have a DNSLOOKUP for my e-mail that was not working. Everything was working fine for several weeks, and then I started getting an unknown error from my PING. I checked the IP address and it was all zeroes, so I took a look at the DNSLOOKUP and realized it would set the ip address to all zeroes even though it set the success flag. I could load the identical rung in my Simulator and it worked fine.
in my frustration I stumbled upon the idea of changing the l to a L (just because the l (ell) looked so much like a 1 (one) in dataview) in "aspmx.L.google.com" and now it works fine.
Either way works when using the DNS lookup under the Tools menu. Any ideas?
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The Preferred DNS Server may not be available to resolve the Name to IP Address.
Try a new DNS server to resolve the Name to IP Address.
Usually the local PC network DNS should work, but not all local pc networks have a DNS server.
Here is a current list of free ones from http://pcsupport.about.com/od/tipstricks/a/free-public-dns-servers.htm
Free & Public DNS Servers (Updated December 2013)
Provider Primary DNS Server Secondary DNS Server
Level31 209.244.0.3 209.244.0.4
Google2 8.8.8.8 8.8.4.4
Securly3 184.169.143.224 184.169.161.155
Comodo Secure DNS 8.26.56.26 8.20.247.20
OpenDNS Home4 208.67.222.222 208.67.220.220
DNS Advantage 156.154.70.1 156.154.71.1
Norton ConnectSafe5 198.153.192.40 198.153.194.40
GreenTeamDNS6 81.218.119.11 209.88.198.133
SafeDNS7 195.46.39.39 195.46.39.40
OpenNIC8 216.87.84.211 23.90.4.6
Public-Root9 199.5.157.131 208.71.35.137
SmartViper 208.76.50.50 208.76.51.51
Dyn 216.146.35.35 216.146.36.36
censurfridns.dk10 89.233.43.71 89.104.194.142
Hurricane Electric11 74.82.42.42
puntCAT12 109.69.8.51