man mknod

Derek Martin wrote:
> On Sat, Jun 23, 2007 at 09:58:11AM -0700, Russ Allbery wrote:
>   
>> It's a door file.  There are several on Solaris.  For example:
>>
>> Dr--------   1 root     root           0 Jan 23 13:33 rcm_daemon_door
>> Drw-r--r--   1 root     root           0 Jan 23 13:31 syslog_door
>>
>> It's a type of special file found (I believe) only on Solaris and used for
>> IPC.  I don't know how to create them.
>>     
>
> In that case you're on your own.  They're probably similar to sockets,
> which typically need a system call to be created. I would have no idea
> what process would be creating these "door" files (though lsof may
> help with that), or how to interact with them.
>
> You might search for documents describing how to apply the OpenSSH
> chroot patch on Solaris 10, as likely the same issues will apply
> there.  You're probably going to have to modify whatever system
> process is creating these door files, such that it creates and listens
> to another one inside your jail.  Or, if you're very lucky, it will
> have command-line options to tell it to create copies in specified
> locations, like syslogd does with sockets on enlightened systems...
>
>   
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