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Editorial Team
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Asked: 2026-05-26T12:13:16+00:00

When I do a ping on localhost, I get ping: cannot resolve localhost: Unknown

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When I do a ping on localhost, I get “ping: cannot resolve localhost: Unknown host”. A ping on 127.0.0.1 does work. So I checked my hosts file and everything looks so far correctly:

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1             localhost
fe80::1%lo0     localhost

#Added by XAMPP Control
127.0.0.1 mkn.local

#Added by XAMPP Control
127.0.0.1 mkn.local

I also did a “dscacheutil -flushcache” but I still can’t ping “localhost”. The problem is that right now I can’t debug anymore in eclipse because eclipse contacts localhost (and right now localhost cannot be resolved to 127.0.0.1).

Many thanks for any help in advance!

P.S. I have OSX 10.7.2 (Lion OS)

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1 Answer

  1. Editorial Team

    I restored the hosts file from an older backup. I don’t see any differences between my backuped hosts file and the current file. However, it works now …. magic

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