In the previous post I explained what is the difference between Icinga active and passive checks, why can be interesting to use passive checks, what is the result format Icinga is expecting when processing those checks and the way I use to send those results (instead of using snmp traps).
Now it is time to show how to configure it … Read more
As I posted long time ago for Nagios (Nagios – Using passive checks without agent), it is time to show an easy way to configure Icinga to perform passive checks (without using SNMP traps).
This is the first of two posts. In this I only want to make some theoretical explanations and then in the second I will … Read more
Maybe you have been interested in configuring a scheduled task on a set of servers of your enviroment. Depending on the quantity it can become a tedious… or a reeeaaaaally tedious process (connect to every server, run "scheduled tasks" console, configure…)
So, as we, sysadmins, usually do… let's make the work easier using scripts…
In this example, the goal is … Read more
On a previous post I explained how to Automate Ironport commands / scripts from Windows. At the end of the post I suggested configuring the task scheduler to execute a bat script, for example, to save a backup copy of the configuration… So, here we go!
Example 1: Simple configuration backup via email
Assuming all the necessary preparations … Read more
This post shows a Powershell script I use to monitor the status of my Lync services.
This state can be manually checked on the Lync console (Lync 2010 in my scenario):
And with the Get-CsWindowsService powershell command:
PS C:\> Get-CsWindowsService
Status Name ActivityLevel
------ ---- -------------
Running RTCSRV Incoming Requests per Second=0,Mess...
Running RTCCAA Concurrent Calls=0
… Read more
Sometimes we need to move the profiles to a new folder, drive… due to space requirements for example.
The usual way is via the graphical interface:
But performing this action for a set of users can take us a lot of time and, as a sysadmin should think, the best way to complete this tasks is to work some … Read more
In a previous post (Linux: SSH connection without password (RSA public-key) I showed the way to configure a non-interactive SSH connection from-to a Linux system.
If the target system is a Ironport ESA device, the configuration is almost the same (generation of the key pair and configuration of the private one). But to install the new public key on … Read more
In another post we saw the way to configure a SSH connection to Linux without password via public/private key. To allow SSH connection without interaction (without password) to Cisco Ironport ESA (Email Security Appliance) from a Windows machine is a bit different. These are the different steps:
Generate public/private keys
To generate the keys, we will use Puttygen (PuTTY Key … Read more
The inetd (also known as superserver) is a daemon that provides (commonly on Linux and Unix systems) internet services. The configuration file inetd.conf contains the list of the offered services by the daemon. The clients connect to certain port and inetd launches the corresponding program to process the connection.
This example shows how to setup a service that executes remote … Read more