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Linux Feed

Linux Support, Oracle Linux, Red Hat Enterprise Linux, SUSE, Oracle Unbreakable Enterprise Kernel and the Oracle Unbreakable Linux Support Program (ULN) resources, news, and support articles.

How to n-up pages in a PDF or PPT file via the command-line

Suppose you downloaded a PowerPoint or a PDF file from slideshare. You liked it so much that you wanted to print it out. But, alas, it was 50 pages long. This tutorial introduces the command-line tools to n-up a PPT or PDF file, i.e., batch multiple pages of the input file onto a single page on the output file. The output file is of the PDF format.To 2-up a file, you place 2 original pages on a single output page. Similarly, to 4-up a file, 4 original pages on a single output page. By n-upping a file, you drastically reduce the number of pages for printing.

Food Keeper App

The FoodKeeper can help consumers use food while at peak quality and reduce waste. The storage times listed are intended as useful guidelines and are not hard-and-fast rules. Some foods may deteriorate more quickly while others may last longer than the times suggested.

Adding a KVM cluster with NSX networking to CloudStack

As KVM seems more and more interesting, at work we wanted to do a Proof-of-Concept. The KVM hypervisor cluster had to be controlled by CloudStack and also integrate with NSX (formerly known as Nicira). NSX is owned by VMware these days and is one of the first Software Defined Networking solutions. At Schuberg Philis we […]

IPoIB working modes

The IPoIB driver supports two modes of operation: Unreliable Datagram (UD) and Connected Mode.
In Unreliable datagram mode, the IB UD (Unreliable Datagram) transport is used and so the interface MTU has is equal to the IB L2 MTU minus the IPoIB encapsulation header (4 bytes).  In QDR, the default NTU value is 2044. In FDR onwards, the default MTU value for Unreliable Datagram is 4096.

What are the F1 through F12 keys?


  • Almost always used as the help key, almost every program opens a help screen when this key is pressed.

Call for Log Samples

There is one big problem in research for better logging methods: no good logging sample repositories exist. Well, not even bad ones... I am currently doing some preliminary steps towards a new, better log normalization system. Among others, it will contain a structure analyzer which will remove much of the manual burden of creating normalization rules. But, guess what: while the project looks very promising, lack of log samples is a real big problem!

Using ibdiagnet to generate topology of the network.

You can use the ibdiagnet to generate the topology of the IB Network simply by using the “-w” switch

node-oracledb 0.4.2 is on NPM (Node.js driver for Oracle Database)

The 0.4.2 version of the href="" >Node.js driver for
Oracle Database is out.

  • Node-oracledb is now officially on the href="" >
    repository. This simplifies the href=""
    >Install instructions by removing the need to manually clone or
    download from GitHub. Thanks to >Tim Branyen for setting this up and handing over stewardship to

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