Hint: us­ing sock­ets across jails

I want to use a sock­et (mysql) in mul­tiple jails. Us­ing null­fs to mount it in each jail where you want to use it does not work (bug in null­fs?). Us­ing a hard­link (if the jails reside on the same FS) works. I hope this in­fo safes a little bit of time in case someone tries to do the same.

The host­name MySQL sees in such a con­nec­tion is “loc­al­host”. May­be this is ob­vi­ous to one or an­other, but be­cause jails don’t have a it was not ob­vi­ous to me.

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