pparidans

Via: http://lena.franken.de/nagios/hosts_without_ping.html

Some hosts are not pingable. There is a firewall in front of them preventing that. Although all services from this hosts are running, the host itself is assumed to be down.

The solution is to check the "host-alive-status" with another service.

Define a new nagios-command

echolon:/etc/nagios/echolon# cat checkcommands.cfg 
# checkcommands.cfg - Nagios configuration file for local user changes

pparidans

Via: http://serverfault.com/questions/48530/nagios-define-as-service-for-all-the-members-of-a-group-except-some-hosts

We're using nagios to check our ssh server is running. We have the check_ssh group defined for all members of a certain group. We have other services defined for that group as well. Everything is fine. However for 2 of the members of this group, they listen for ssh on a different port. Hence I have to make a new service for them. Which is fine, but then nagios complains that I'm defining the SSH service twice for the same host.

Can I change the original ssh service to include all the members of group A, but exclude hosts X and Y?



# Use the host_name directive in the service definition with an exclamation before the name of the host. For example:
define service{

pparidans

preg_replace('/(https?:\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.-]*(\?\S+)?)?)?)/i', ' <a href="$1">$1</a> ', $str);

pparidans

Symbolic link to the 'public' directory

ln -s /webapps/mycook/public /websites/phusion/rails

Into the apache config

RackBaseURI /rails                   # <-- These lines have
<Directory /websites/phusion/rails>   # <-- been added.
    Options -MultiViews               # <--

<--

pparidans

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
	display: block;
}
* {
	margin: 0;
	padding: 0;
}
html, body {

pparidans

require 'net/ftp'
ftp=Net::FTP.new
ftp.connect(URL,21)
ftp.login(username,passwd)
ftp.chdir(directory)
ftp.getbinaryfile(filename)
ftp.close

pparidans

# Update, upgrade and install development tools:
apt-get update
apt-get -y upgrade
apt-get -y install build-essential git-core libssl-dev

# Install rbenv
RBENV_ROOT=/opt/rbenv

git clone https://github.com/sstephenson/rbenv.git $RBENV_ROOT

pparidans

SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('MD5', <key>)), 3, 32) FROM <table>

pparidans

git log --numstat --pretty="%H" --author="Your Name" commit1..commit2 | awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d, -%d\n", plus, minus)}'

pparidans

info tables;

info columns for <table>;