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Is there a possibility to create a hard link for an unix socket? I'm creating a jail and symbolic links won't work, so I'm looking for a solution, how to provide an unix socket inside chrootted environment.

The only idea I'm coming across is to use something like netcat but is there any reliable possibility?

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marked as duplicate by MichelZ, Rex, Ward, mdpc, Jenny D Apr 19 at 16:51

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1 Answer 1

Linux at least would allow you to use a bind mount to make either a directory or alternatively a single file available at multiple places. Not tested, but in theory it should work...

  mount -t bind /var/MySQL.sock /chroot/var/MySQL.sock 
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Bind works only for directories, so it doesn't solve the problem. –  eRIZ Apr 17 at 20:26
    
In the words of the man page One can also remount a single file (on a single file), and I have no problems accessing the MySQL daemon through the socket in the bind mount. But I don't have any chroot set up to test more. –  HBruijn Apr 18 at 12:57
    
Parameter list consist on two directories. I mean mounting a link directly, without separated directory. Could you provide your command line I can test against? Is this the above you cited? I tried to make it happen but this doesn't work. –  eRIZ Apr 18 at 17:56
    
You can also put the socket in a directory created for this purpose, and bind mount that. –  Falcon Momot Apr 18 at 18:43
    
@FalconMomot, I know but I want to solve problem. I'm aware of a workaround. [; –  eRIZ Apr 18 at 21:55

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