An error is reported when dbca or netmgr class is started in linux.

In linux, when dbca or netmgr class is started, the graphic interface reports an error. Xlib: connectionto & quot;: 0.0 & quot; refusedbyserverXlib: Noprotocolspecified & hellip; solution: www.2cto. comexit is returned to the root user and run the following code: Java Code x linux to start the dbca or netmgr class graphical interface. an error is reported when Xlib: connection to ": 0.0" refused by serverXlib: No protocol specified ...... Solution: exit www.2cto.com and return to the root user. run the following Java code: xhost local: oracle non-network local connections being added to access control list. the screen displays the following content: www.2cto.com Java code non-network local connections being added to access control list xhost: bad hostname "non-network" xhost: bad hostname "local" xhost: bad hostname "connections" xhost: bad hostname "being" xhost: bad hostname "added" xhost: bad hostname "t O "xhost: bad hostname" access "xhost: bad hostname" control "xhost: bad hostname" list "and then su-oracle continues to start the graphic interface. Record the problem many times.