Xlib: connection to: 0.0 "refused by Server

Xlib: connection to ": 0.0" refused by server original address: http://wcx337.blog.sohu.com/129360267.html2009-08-11 14: 28 xlib: connection to ": 0.0" refused by Server
Xlib: no protocol specified

Error: can t open display: 0.0

This is an old problem, but this time it is a little different for me. If you want to install oracle10 on your own Ubuntu, the newly added Oracle user cannot run the X program.

Check the information and manual, log on to the user who is used for daily work, and run the command in shell.
Xhost local: Oracle
Non-network local connections being added to access control list

Then the Oracle Identity can run the X program.

There is such a section in man xhost

A complete name has the syntax ''family: name'' where the families are as follows:

Inet Internet host (IPv4)
Inet6 Internet host (IPv6)
Dnet decnet host
NIS secure RPC network name
Krb Kerberos V5 principal
Local contains only one name, the empty string
Si server interpreted

The local one is used to solve the problem of different users accessing X on the same machine.