Tag Archives: Red Hat Enterprise Linux

Compiling and Installing mod_wsgi 4.5.6 on RHEL/CentOS 6

Just a quick note in addition to the troubleshooting post I provided; When compiling mod_wsgi from source (which is Graham Dumpleton’s serious recommendation), you may choose to compile the module with a different version of Python than that which is … Continue reading

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Troubleshooting Apache httpd and mod_wsgi with Anaconda Python 3.5 on RHEL/CentOS 6

Man, I have spent many hours over the last few days figuring out why, exactly, I am having so much trouble getting mod_wsgi to do so much as present a simple test application.  The issues I have encountered have seemed … Continue reading

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Installing and Configuring the Microsoft SQL Server Driver for unixODBC on Red Hat Enterprise Linux 7.2

General Procedure Up Front 1.  Install unixODBC in RHEL 7.2 $ sudo dnf install unixODBC 2.  Download and install the Microsoft ODBC Driver 13 (Preview) for SQL Server on Linux These instructions are actually good enough. 3.  Create and configure … Continue reading

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Installing PL/R on RHEL/CentOS 6 with PostgreSQL 9.4

It’s pretty simple, but it involves building software from source and the lack of any explicit documentation for a typical RHEL/CentOS 6 system using the PostgreSQL RPMs was something of a pain in the butt, so here’s the process: First, make sure you take … Continue reading

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Index of Literature: Using cgroups to manage libvirt/QEMU/KVM guest domains

Introduction to Linux Control Groups (sysadmincasts) Introduction to Control Groups (RHEL 7) Subsystems and Tunable Parameters (RHEL 6 – at least theoretically relevant to modern Fedora/RHEL/CentOS systems) cgroups (Kernel.org) virsh manual (libvirt – under construction – I may contribute, though … Continue reading

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Troubleshooting DLNA Discovery: Plex Media Server on a KVM/QEMU Emulated Fedora 22 Server

TL;DR:  If you’re running a Plex Media Server in a guest domain on a KVM/QEMU/libvirt-based hypervisor platform, make sure that the bridge you use to provide network access to the guest domain (such as macvtap) is configured in the host … Continue reading

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Troubleshooting R Package Installation on Red Hat Enterprise Linux 6

I thought I’d take the opportunity to work through an example to demonstrate a basic problem-solving method for R on RHEL: When attempting to install the R packages “ggmap” and its dependent package “jpeg,” one might encounter output with the … Continue reading

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