Forum OpenACS Q&A: Response to Mysterious refusal to connect to localhost by http

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4: Response to Mysterious refusal to connect to localhost by http (response to 1)
Posted by Rocael Hernández Rizzardini on 02/20/02 10:16 PM 
ping to your address won't tell you something interesting because it does that to your network card...

try /sbin/ifconfig and check if you have the loopback running like this:
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:5345 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5345 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0

if you don't see it try restarting your box or check your nsd.tcl as Paul suggested!