Welcome to another Sysadmin & DBA Tips, in this post I’ll explain how install and configure Mod_Security, an open source web application firewall, that protect your personal/business Web Applications. (more…)
Apache Security – ModSecurity
Welcome to another Sysadmin & DBA Tips, in this post I’ll explain how install and configure Mod_Security, an open source web application firewall, that protect your personal/business Web Applications. (more…)
Oracle Restart – Changing Hostn...
Welcome to another Sysadmin & DBA Tips, in this post I’ll explain how change the hostname of your cloned Oracle 11.2 VMs thats running on ASM with Oracle Restart. (more…)
Nagios Tuning
Welcome to another Sysadmin & DBA Tips, in this entry I’ll explain how increase your Nagios performance installation in case that your monitoring system check a large number (> 1,000) of hosts and services. (more…)
JobScheduler Installation and Configu...
JobScheduler
Welcome to another Sysadmin & DBA tips, in this post I’ll explain how install, configure and create your first Job with the OpenSource JobScheduler tool.
(more…)
Getting started with CFEngine
Welcome to another Sysadmin & DBA tips, in this post I’ll explain how install, configure, and getting started with CFEngine. (more…)
How to join two RRD files
In this case I bring a python utility to merge to rrd files, a very useful utility if you need conserve the old data with your new RRD files. (more…)
Conditions in bash scripting (if stat...
Hello for everybody, in this post I’ll summarize the most important conditions in bash scripting (if statements).
I hope you find it useful
1. File-based conditions:
Condition
True if
Example/explanation
[ -a existingfile ]
file ‘existingfile’ exists.
if [ -a tmp.tmp ]; then
rm -f tmp.tmp # Make sure we’re not bothered by an [...]
Integrate Nagios with JIRA
Hello to everybody and welcome to other sysadmin tip. In this case I’ll explain how integrate the Monitor System Nagios with the issue tracking JIRA, the idea is that when a CRITICAL problem occur in some monitoring system, the Nagios server create a JIRA issue with the description problem. (more…)
Mysql: Multi-Master Replication
Greeting to all readers, the first thing is to apologize for not write time ago but I have been studying the LPIC-2 Certification .
In this article I’ll explain how mount a Mysql Multi-Master replication, this system consist in two databases running in separate servers, the production machine, with read/write access, and the read-only [...]
Samba 3 trust Relationship with Activ...
In a previous post I explained How install and Configure Samba4, unfortunately in this moment Samba4 not support a Trust RelationShip with Samba3. This integration with Samba3 is a requisite to implement the Vmware View (VDI) solution that we are implementing in the University of Navarra, where I work. For this reason, while the developers o [...]
