centos

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Adding Pseudo-TTY Support in CentOS

Recently, I had a customer in the banking industry that needed legacy pseudo tty support on their servers. This article describes the process of adding pseudo tty support in the CentOS kernel. In addition, I describe how to create a customer kernel RPM for easy distribution to other servers.

Let's get started:
Download source kernel RPM from http://mirror.centos.org/centos/5/updates/SRPMS
Install the source RPM:

LooperNG and NetCool saves Siemens money.

Siemens, a Global Fortune 500 company, will be saving $20,000 with Pate Consulting and a little open source project named LooperNG. LooperNG is specifically designed to replace NetCool NNM probes. Basically, LooperNG has input modules and output modules. Both types of modules can read/write in multiple formats – SNMP trap, syslog, log file, and NetCool database to name the most common.

Houston Airport System selects Zenoss to monitor Cisco switches, routers, and firewalls.

I recently implemented the Zenoss Enterprise appliance for the City of Houston Airport System to monitor over 250 Cisco network devices located at George Bush Intercontinental (IAH), William P. Hobby (HOU), and Ellington Airport (EFD).
 

CentOS Cluster-DRBD Setup

As part of a MySQL Cluster setup, I recently setup a 2-node web cluster using CentOS's native cluster software suite with a twist. The web root was mounted on a DRBD partition in place of periodic file sync'ing. This article focuses on the cluster setup and does not cover the DRBD setup/configuration. Let's go:

Install "Cluster Storage" group using yum:

[root@host]# yum installgroup "Cluster Storage"

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