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Author Archives: alex

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Technology Insights

Dell OMSA Repo Install Error On CentOS: Command line error: no such option: –disableplugin

InsightsBy alexMarch 17, 2010Leave a comment

I wrote another article recently about an issue when attempting to install the srvadmin-all RPM package provided by the Dell OMSA repository. It is likely that when you are installing the OMSA repository that you will receive an error on CentOS and possibly on other versions of Linux. The yum OMSA repository is installed via…

Technology Errors

Error: failure: srvadmin-meta/srvadmin-all-6.2.0-1.5.el5.i386.rpm from dell-omsa-specific: [Errno 256] No more mirrors to try.

ErrorsBy alexMarch 16, 20106 Comments

I installed some packages today for a client that uses a third party collocation provider to manage the hardware aspects of their servers. We handle all of the software installations and day to day management of the servers but this other company replaces hard drives and any other hardware that is necessary. Anyhow the third…

Technology Insights

Verify PHP Compiled With curl And libcurl Support On A CentOS Linux Server

InsightsBy alexMarch 15, 20101 Comment

Every now and then you will probably install an application that has a certain amount of prerequisites that you should verify on your server before beginning installation. Today I needed to verify that PHP was compiled with curl and/or libcurl support to install an application on a CentOS Linux server. I also needed to verify…

Technology Insights

CentOS Linux: PHP Fatal error: Call to undefined function imagetypes()

InsightsBy alexMarch 14, 2010Leave a comment

After moving a WordPress site from one server to a brand new server I ran into an issue with one of the WordPress plugins called MM-Forms. The MM-Forms WordPress plugin allows you to easily create contact forms that will either email filled out forms to you, store those forms in the MySQL database, or both…

Technology Errors

make: *** No rule to make target -largtable2, needed by ../../bin/linux/release/CUDA-Multiforcer. Stop.

ErrorsBy alexMarch 13, 2010Leave a comment

When attempting to compile the CUDA Multiforcer on CentOS Linux I ran into an error because the argtable2 package was not installed on the server. The CUDA Multiforcer application is a security audit tool used to check the strength of MD4, MD5, NTLM, and SHA1 password hashes. The CUDA Multiforcer attempts to brute force one…

Technology Insights

Delete Gmail Messages, Delete All Messages That Match A Specific Search In Gmail

InsightsBy alexMarch 12, 201017 Comments

A company I work with uses Gmail to log exception emails from our Ruby on Rails application. This allows us to always capture issues with the application and keep a lengthy history of all the issues without using up disk space on the server itself. Sometimes if there is an issues on a development server…

Technology Errors

Error Building Pyrit On CentOS: cpyrit/_cpyrit_cpu.c:26:18: error: pcap.h: No such file or directory

ErrorsBy alexMarch 11, 20102 Comments

When building pyrit, which is an application that uses GPU power to run dictionary attacks against WPA handshake captures, on CentOS Linux I ran into an error. The error was related to the pcap.h library which was not found by the pyrit setup.py python script. Resolving the problem is easy by simply installing the libpcap-devel…

Technology Errors

Error: Missing Dependency: libffi.so.5 is needed by package python26-2.6.2-2.i386

ErrorsBy alexMarch 10, 20105 Comments

One of the annoying things about CentOS Linux is the current dependency on Python version 2.4. Typically I install Python version 2.6 and compile new programs using the 2.6 version of python instead of the 2.4 version. Recently on a server I had just installed CentOS 5.4 on I had a dependency issue when attempting…

Technology Errors

/usr/include/gnu/stubs.h:7:27: error: gnu/stubs-32.h: No such file or directory

ErrorsBy alexMarch 9, 20104 Comments

When compiling an application called pyrit on a new CentOS Linux server I ran into an issue with some libraries. Pyrit is an application used to perform dictionary attacks against WPA handshakes and can be really useful for security auditing. The error below is easily resolved on any version of Linux by simply installing the…

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