Sometimes, you can't use NTP to adjust your server time, you can change it by a command line. [root@rac1 ~]# date -s '2017-02-18 17:30:00' Sat… Read More »How Linux Set Date Time Command
When I retrieved a file from a remote host, ftp aborted the transfer immediately....ftp> get alertORCL.log200 PORT command successful.150 Opening data connection for alertORCL.log (3347200… Read More »426 Transfer aborted. Data connection closed.
After you copied one directory to another like this:$ cp -rp /path/to/source/directory /path/to/target/or mirrored the source directory to the target one.$ rsync -av /path/to/source/directory/ /path/to/target/directory/You… Read More »How to Compare Contents of Two Directories
Check /etc/cron.deny first If there's no /etc/cron.allow in your system, please make sure the user (e.g. oracle) that we would like to authorize it here… Read More »How to Authorize Users to Use Crontab
Backup RMAN Configuration RMAN can backup almost everything at any state of execution time, includes data, archive logs, even control file and spfile, but I… Read More »How to Backup RMAN Configuration Daily