#2391: Network.listenOn (PortNumber n) Sometimes Picks IPv6
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Reporter: cjs | Owner: bos
Type: bug | Status: assigned
Priority: normal | Milestone: Not GHC
Component: libraries/network | Version: 6.8.3
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Multiple
Os: Multiple |
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Comment (by cjs):
Actually, the linux code ''incorrectly'' binds to both; this opens up a
security problem, though I can't remember the exact details right now.
This is exactly the reason for the default sysctl setting of
"net.inet6.ip6.v6only = 1", IIRC.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2391#comment:5>
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