Technical Articles For Oracle Linux Sysadmins
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Tech Article: Using DTrace on Oracle Linux
DTrace is a powerful tool, and it can do some amazing things. But it's not that difficult to get started doing simple things. You can build up from there. In this article, Richard Friedman gives you a high-level overview of DTrace and its major components:providers, modules, functions, and probes. He explains how you can use either one-liner commands on the command line, or write more complex instructions in scripts, using the D language. He provides simple examples for each. It's a great way to get your feet wet.
posted Fri, 07 Jun 2013 16:30:12 +0000
DTrace is a powerful tool, and it can do some amazing things. But it's not that difficult to get started doing simple things. You can build up from there. In this article, Richard Friedman gives you a high-level overview of DTrace and its major components:providers, modules, functions, and probes. He explains how you can use either one-liner commands on the command line, or write more complex instructions in scripts, using the D language. He provides simple examples for each. It's a great way to get your feet wet.
posted Fri, 07 Jun 2013 16:30:12 +0000
Tech Article: Preventing Silent Data Corruption in Oracle Linux
Linux, like any OS, is vulnerable to silent data corruption. It can be caused by a faulty component or sysadmin error. It's nearly impossible to detect. But it's not impossible to prevent. EMC, Emulex, and Oracle partnered up on an end-to-end solution.
posted Thu, 21 Feb 2013 21:22:10 +0000
Linux, like any OS, is vulnerable to silent data corruption. It can be caused by a faulty component or sysadmin error. It's nearly impossible to detect. But it's not impossible to prevent. EMC, Emulex, and Oracle partnered up on an end-to-end solution.
posted Thu, 21 Feb 2013 21:22:10 +0000
Tech Article: How to Update a Linux Kernel Without Rebooting
The uptrack-upgrade command applies patches to your Linux kernel while your system is running. This article explains how to use its variations and how to configure automatic updates.
posted Wed, 20 Feb 2013 22:57:31 +0000
The uptrack-upgrade command applies patches to your Linux kernel while your system is running. This article explains how to use its variations and how to configure automatic updates.
posted Wed, 20 Feb 2013 22:57:31 +0000
Tech Article: How to Use Signed Kernel Modules in Oracle Linux
Loadable kernel modules are cool because they let you add code to a running Linux kernel. But how do you know the code you add won't make your kernel a client of the Death Star? You don't. Unless you use signed kernel modules. Robert Chase explains how.
posted Wed, 02 Jan 2013 23:44:48 +0000
Loadable kernel modules are cool because they let you add code to a running Linux kernel. But how do you know the code you add won't make your kernel a client of the Death Star? You don't. Unless you use signed kernel modules. Robert Chase explains how.
posted Wed, 02 Jan 2013 23:44:48 +0000
Tech Article: The Role of Oracle Solaris Zones and Oracle Linux Containers in a Virtualization Strategy
Oracle Solaris zones are referred to as lightweight virtualization because they impose no overhead on the virtualization layer and the applications running in the non-global zones. As a result, they are a perfect choice for high performance applications. Detlef Drewanz continues his overview of virtualization strategies with a focus on Oracle Linux Containers and Oracle Solaris zones.
posted Mon, 03 Dec 2012 18:47:19 +0000
Oracle Solaris zones are referred to as lightweight virtualization because they impose no overhead on the virtualization layer and the applications running in the non-global zones. As a result, they are a perfect choice for high performance applications. Detlef Drewanz continues his overview of virtualization strategies with a focus on Oracle Linux Containers and Oracle Solaris zones.
posted Mon, 03 Dec 2012 18:47:19 +0000
Tech Article: How I Simplified Oracle Database
11g Installation on Oracle Linux 6
An RPM package available in Oracle Linux 6 automatically downloads and installs software packages required to install Oracle Database 11g on Oracle Linux 6. It also resolves package dependencies and adjusts kernel parameters. All you need to do is install it. Like Ginny did. Similar to a previous article, but updated by Michele Casey and Lenz Grimmer.
posted Mon, 22 Oct 2012 17:05:15 +0000
An RPM package available in Oracle Linux 6 automatically downloads and installs software packages required to install Oracle Database 11g on Oracle Linux 6. It also resolves package dependencies and adjusts kernel parameters. All you need to do is install it. Like Ginny did. Similar to a previous article, but updated by Michele Casey and Lenz Grimmer.
posted Mon, 22 Oct 2012 17:05:15 +0000
Tech Article: Tips for Securing Your Oracle Linux Environment
System logging with logwatch and process accounting with psacct can help detect intrusion attempts and determine whether a system has been compromised. So can using the RPM package manager to verifying the integrity of installed software. These and other tools are described in this second article, which takes a wider perspective and gives you tips for securing your entire Oracle Linux environment.
posted Mon, 10 Sep 2012 16:14:32 +0000
System logging with logwatch and process accounting with psacct can help detect intrusion attempts and determine whether a system has been compromised. So can using the RPM package manager to verifying the integrity of installed software. These and other tools are described in this second article, which takes a wider perspective and gives you tips for securing your entire Oracle Linux environment.
posted Mon, 10 Sep 2012 16:14:32 +0000
Tech Article: How I Use the Advanced Features of the Btrfs File System in Oracle Linux
How to create and mount a Btrfs file system. How to copy and delete files. How to create and manage a redundant file system configuration. How to check the integrity of the file system and its remaining capacity. How to take snapshots. How to clone. And more. In this article Margaret explores the more advanced features of the Btrfs file system.
posted Wed, 15 Aug 2012 19:39:24 +0000
How to create and mount a Btrfs file system. How to copy and delete files. How to create and manage a redundant file system configuration. How to check the integrity of the file system and its remaining capacity. How to take snapshots. How to clone. And more. In this article Margaret explores the more advanced features of the Btrfs file system.
posted Wed, 15 Aug 2012 19:39:24 +0000
Tech Article: Tips for Hardening an Oracle Linux Server
General strategies for hardening an Oracle Linux server. Oracle Linux comes "secure by default," but the actions you take when deploying the server can increase or decrease its security. How to minimize active services, lock down network services, and many other tips. By Lenz Grimmer and James Morris.
posted Tue, 17 Jul 2012 17:42:44 +0000
General strategies for hardening an Oracle Linux server. Oracle Linux comes "secure by default," but the actions you take when deploying the server can increase or decrease its security. How to minimize active services, lock down network services, and many other tips. By Lenz Grimmer and James Morris.
posted Tue, 17 Jul 2012 17:42:44 +0000
Tech Article: How I Got Started With The Btrfs File System for Oracle Linux
The basic capabilities that Margaret Bierman discovered while becoming familiar with the Btrfs file system in Oracle Linux, plus the instructions she used to create a file system, verify its size, create subdirectories, and perform other basic administrative tasks.
posted Thu, 12 Jul 2012 13:00:19 +0000
The basic capabilities that Margaret Bierman discovered while becoming familiar with the Btrfs file system in Oracle Linux, plus the instructions she used to create a file system, verify its size, create subdirectories, and perform other basic administrative tasks.
posted Thu, 12 Jul 2012 13:00:19 +0000
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