This article describe howto get a 1-wire humidity probe to work with Nagios or op5 Monitor.
In an earlier article I have described a 1-wire temperature plugin.
Pre requriments
To get it working you need:
1-wire humidity probe i.e. this, it is based on DS2438 & HIH-4000
A working owfs installation, instructions can be found here
Nagios or op5 [...]
Most unix or Linux admins come across regular expressions occasionally. It is very powerful to handle text with and if you have understood it once it is handy to have an on-line reference source to quickly to lookup the syntax for what you want todo. My problem is that I always forget the syntax [...]
This article describe howto monitor an Asterisk server with Nagios or op5 Monitor. Pre-req to get it running is a working Nagios or op5 Monitor installation and an Asterisk
Theory
In my implementation of Asterisk I have a couple of softphones, 2 hardphones and connections to two SIP providers. I want to monitor [...]
The most common way if keeping track of the time in a computer is by counting the seconds since the day Unix was born, i.e. Jan 1 1970. This is called Unix Epoch and is used in all Posix system, including Windows.
Feb 13 23:31:30 UTC is it 1234567890 seconds since Epoch, this is worth celebrating [...]
It-Slav.net is proud to announce as one of the temperature providers to temperatur.nu
It-slav.net provides temperature measurement for STHLM/Huddinge area in Sweden to the very popular site temperatur.nu
The measurment is done by a 1-wire temperature probe DS18S20.
I’ve got a hint from a partner to take a peak at http://folk.uio.no/trondham/software/check_openmanage.html
It describes How-To monitor Dell hardware with Nagios, of course it works perfectly well with op5 Monitor aswell.
My firewall get alot of failed ssh logins.
This is a typical log message in /var/log/authlog
Feb 9 20:15:49 pedro sshd[30934]: Failed password for root from 67.205.85.119 port 35603 ssh2
Feb 9 20:15:49 pedro sshd[2656]: Received disconnect from 67.205.85.119: 11: Bye Bye
Feb 9 20:15:51 pedro sshd[15299]: Failed password for root from 67.205.85.119 port 35753 ssh2
Feb 9 20:15:51 pedro [...]
Today I had to do some electrical work at home. The consequence was that my internet connection was down for about 20 minutes because my ADSL modem did not have any power.
My Nagios based op5 Monitor system discovered this directly and reported to me. I forgot to schedule this as planed downtime so I have [...]
This guide describe howto install and configure SNMP on Ubuntu.
In an earlier article I have described howto set it up on RHES or CentOS, it is slightly different in Ubuntu.
1.Installation
root@ibsen:~# sudo apt-get install snmpd
Reading package lists… Done
Building dependency tree
Reading state information… Done
The following packages were automatically installed and are no longer required:
libmpich1.0gf libdc1394-22 genisoimage [...]
Sometimes I ask myself why does not person X living in country Y not answer the phone or email. When I try the switchboard nobody answer.
Maybe they have a holiday in that part of the world. A tool to find that out is “Earth Calendar”
http://www.earthcalendar.net/
So mabe the reason that my blog dropped from approx [...]
At my home the most critical system is the MythTV system and a MythTV downtime will create a revolt at home. This article will describe howto make sure that a MythTV backend can be surveillanced with Nagios or op5 Monitor.
I have in earlier articles described howto install and configure both the backend and the frontend.
To [...]
