Howtos / Articles

Update time from network time server on Linux

To update the time on a Linux installation, simply run the following command: $ sudo ntpdate <time server address> Replacing <time server address> with a valid NTP time server address. eg: $ sudo ntpdate If you only want to query the time, without updating your system, use the following command: $ ntpdate -q To update the time, without outputting any log information to standard output (handy for a cron job), use the following command: $ sudo ntpdate -s…

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Install VMWare ESXi / vSphere on a Adaptec 3405 RAID card

I recently set out to build a VMWare ESXi / vSphere white box. A white box in this case, is a custom built PC, that may not have all parts on the VMWare supported hardware list. Generally, ESX will work on most hardware, but the two common issues preventing things from working, are network adapters, and storage controllers. After trying to install ESXi / vSphere it became apparent that the onboard network interface and storage controller don’t work with VMWare…

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Connect to a PPTP VPN Server from Ubuntu Linux

This howto outlines how to connect to a PPTP VPN server from a Linux computer running Ubuntu (or a Ubuntu based distribution). It covers the installing of the PPTP VPN client, configuration, and connecting/disconnecting from the VPN connection.…

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Enable and Disable Triggers in Microsoft SQL Server

The Microsoft SQL database server supports the use of Triggers on its tables. Triggers are a special kind of stored procedure that can be executed when records in a table are either inserted, updated, or deleted.…

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Enable and Disable Triggers in Firebird

The Firebird database engine supports the use of Triggers on its tables. Triggers are basically a set of SQL scripts that can be executed when data in a table is either inserted, updated, or deleted. Sometimes you may want to temporarily disable a trigger without completely removing it. The steps to do this, and enable the trigger again, are outlined below. Disable Trigger: ALTER TRIGGER <trigger name> INACTIVE; Enable Trigger: ALTER TRIGGER <trigger name> ACTIVE; Replace <trigger name> with the…

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