Sometime happens you need to manually mount the cdrom to be able to install the Parallels Tools. Follow these instructions to do that: 1) Start the virtual machine. When the guest OS boots up, choose Install Parallels Tools from the Virtual Machine menu. At this point, the prl-tools-lin.iso image file will be connected to the….
Sometime is needed to install different JVM on Ubuntu server due to application compatibility or software development purposes. To switch between different JVM in ubuntu from command line, use this command: sudo update-alternatives –config javasudo update-alternatives –config java and this menu will appear: There are 2 choices for the alternative java (providing /usr/bin/java). Selection….
If the database is running, probably the database hasn’t registered yet with the listener. This occurs when the database or listener just starts up. To fix, connect as sysdba: SHOW parameter LOCAL listenershow parameter local listener If something or nothing appears, reset it with: ALTER system SET local_listener='(address=(protocol=tcp)(host=localhost)(port=1521))’; ALTER system register;alter system set local_listener='(address=(protocol=tcp)(host=localhost)(port=1521))’; alter….
Just use md5sum with no options: echo ‘String’ | md5sumecho ‘String’ | md5sum
To fix this issue, open the apt.conf configuration file: vi /etc/apt/apt.confvi /etc/apt/apt.conf Add this row or check it if already exists: Acquire::http::proxy “http://proxy.localdomain:8080/”;Acquire::http::proxy “http://proxy.localdomain:8080/”;
To be able to admin Oracle instance from sqlplus command line on Ubuntu server, for first you need to set the enviroment variables: source /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.shsource /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh At this point, is possible to login as sysdba using: sqlplus / as sysdbasqlplus / as sysdba if you get insufficient privileges error, you need to add your user….
To install Orace 11gR2 Express Edition, please take a look to this tutorial (tutorial? THE TUTORIAL!) https://forums.oracle.com/forums/thread.jspa?threadID=2301639