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Accessing the hidden & unsupported ESXi console so it can be accessed remotely is pretty easy to do, but there's no easy way to find it without guidance. 1. First you must go to the console of the server as you cannot access this ...

To find out what package a file belongs to, you can use the rpm command. To do so, just run rpm -qf /path/to/the/file. Ex. #rpm -qf /bin/ls coreutils-5.97-23.el5_4.2

Sometimes communication errors occur and cups stops. To prevent this from happening, you can adjust the ErrorPolicy to use an alternate behavior. In /etc/cups/printers.conf look for ErrorPolicy. It's likely set to stop-printer. ...

When the cups server is in a stopped state with the StateMessage /usr/lib/cups/backend/lpd failed, you can review the file /var/log/cups/error_log. . What caused this? Well, I am not really sure, however the cups server error logs ...

If you're looking to find a particular column name on your MySQL server, you can use a query like the following: select table_schema, table_name, column_name from information_schema.columns where column_name like 'my_column_name'; where ...

Using rsync to keep a local copy or migrate data is very useful because it picks up where it left off if you ever had to kill it or it aborted. 1. When you use rsync, it's always a good idea to test it with a "--dry-run" first to ...

The following script can be used to create a mysqldump by schema name: #!/bin/bash TODAY=$(date +%m"-"%d"-"%Y) HOSTNAME=$(hostname -s) for db in $(echo "show databases;" | /usr/bin/mysql -uroot | egrep -v "+|^Database"); ...

1. Install MySQL (mysql-server) on the master and slave servers if it's not already installed. You can do so using 'yum install mysql-server'. 2. On the master server, add the following to the /etc/my.cnf file towards the top ...

To find active queries in your Oracle database, you can use the following command: SELECT SID, Serial#, UserName, Status, SchemaName, Logon_Time FROM V$Session WHERE Status=‘ACTIVE’ AND UserName IS NOT ...

Having SQLPlus installed on your Mac is very handy! Follow the steps below to install it. 1. First you'll need to go to Oracle's website (http://www.oracle.com/technetwork/topics/intel-macsoft-096467.html) to download the following ...