ProFTPD 1.2 README - UnixWare

Using ProFTPD with UnixWare 7.1
UnixWare 7.x has an odd problem involving TCP sockets inside of a chroot(), as used with DefaultRoot and <Anonymous> logins. Apparently, due to the UnixWare XTI code, socket operations initially attempt to open a few devices, including /dev/tcp, /dev/udp, /dev/zero and /dev/ticotsord. This is most likely caused by the networking libraries, and is completely out of the control and/or scope of ProFTPD.

UnixWare 7.1 users wishing to use ProFTPD will have to do something like the following in their anonymous or otherwise chroot'ed directories: 

  [ !!NOTE!! Do not use the major/minor device numbers below verbatim.
  Solaris on different archs will use different major/minors.  Check
  your OS documentation first before doing this. ]

  mkdir dev
  mknod dev/tcp c 7 37
  mknod dev/zero c 39 1

  # the following is necessary to allow proftpd to create a socket
  # when in non-low-port mode (such as during passive transfers)
  chmod 0666 dev/tcp
Failure to create these files will result in "socket() failed in inet_create_connection(): No such file or directory" when a user logs in anonymously and attempts to transfer data of any type (including a simple directory listing).

If you receive errors such as "socket() failed in inet_create_connection(): Permission denied", you need to chmod 0666 your dev/tcp device.

Additionally you will need to create the file etc/netconfig or you'll get the following error message: _s_match: setnetconfig failed 

  mkdir etc
  cp /etc/netconfig etc/netconfig