Install Tomcat 7 and Java 1.7 on CentOS 6 RHEL 6

In this post we will cover how to install the Apache Tomcat 7 and jre 1.7 on CentOS 6 and RHEL 6. This process doesn’t use the rpm’s from the Redhat repositories, but uses the latest tar balls from Apache and Oracle. We will also be using service accounts to control Tomcat and its processes. Download latest Tomcat from Version 7.0.40 is the curent... read more

How To Fix RHEL / CentOS 6.4 LDAP MD5 Cert Error

Recently we updated to the latest RHEL 6.4 which caused LDAP to stop using our MD5 signed  certificate. This was due to the nss-3.14.0 update that now deems MD5 as unsecure. This change caused authentication of users using LDAP to fail. If the account had a local password (such as root), they were able to login. Since creating / updating the MD5 certificate was not an immediate solution for us we had to... read more

How To Install MySQL Community Edition on RHEL 6 x86_64

Recently had the need to install the latest Community edition of MySQL on a RHEL 6.3 x86_64 server. For most purposes the included version of MySQL works but if you want the latest version you will need to install the Community edition. First download the latest Community Edition MySQL from here. At the time of this post 5.6.10 is the current version. From the drop down select Oracle & RedHat Linux 6.... read more

How to Create RPM’s from CPAN modules using Cpan2rpm

You know how it is sometimes working on corporate servers that are in DMZ’s and have firewalls blocking them from accessing Internet and getting to modules, programs and such. You can’t directly and you find ways around to get the files to the systems, that’s a good thing and just part of being an admin. Thus is the case in this instance with installing a CPAN program on an RHEL server.... read more

Epson Perfection 4490 Photo scanner on Fedora 17

The Epson Perfection 4490 Photo scanner is not supported in Fedora 17 by sane. In a previous post I describe how to install this scanner on Ubuntu. The process is similar except for the package names and commands. To get the scanner to work in Fedora you must download and install third party software. This how to describes how I was able to install it on Fedora 17 64-bit. Make sure sane and xsane are... read more

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