Skip to content

RabbitMQ ipv6 DNS names Solved

  • by

Last week I was building up a RabbitMQ cluster with shovel from New York to Los Angeles. As we use a dual stack environment ipv4/v6, I expected that RabbitMQ would resolve the ipv6 address  first as normal Linux systems do. So I begun to do my tests and realized, that it didn’t. My publisher  (see… Read More »RabbitMQ ipv6 DNS names Solved

Oracle Linux: A better alternative to CentOS …really?

  • by

Last week I came across this link:  http://linux.oracle.com/switch/centos/ and thought “wow, this might be a very nice alternative to RHEL.” Here is a quote of Oracles site: “FAQ Wait, doesn’t Oracle Linux cost money? Oracle Linux support costs money. If you just want the software, it’s 100% free. And it’s all in our yum repo… Read More »Oracle Linux: A better alternative to CentOS …really?

About

  • by

I work for @AWSCloud & my opinions are my own. Laurent is a Chief Technologist for US Federal Financial Services at Amazon Web Services (AWS). Over the past 20 years, he worked in different roles from leading teams in Product Management, Consulting and IT to working as a Principal Solutions Architect, Consultant and Developer. These… Read More »About

Nagios check_netsnmp_memory and RHEL6

Today I was searching for a nagios check which gets memory information over snmp. So I came across check_netsnmp_memory. It has also a nice php template for pnp4nagios. To test the command I run: # ./check_netsnmp_memory -L “Memory Utilization” -A ‘*’ -H graylog2.domb.net -C public -a ‘total,user,cached,buffer,%used_real,%used_swap,%user_real,%cached_real’ -w ‘,,,500MB,,65%,65%,’  -c ‘,,,800MB,,80%,80%,’ As a result I… Read More »Nagios check_netsnmp_memory and RHEL6

Cleaning a host entry from MySQL DB with puppet 2.7.11-2

  • by

Yesterday I’ve had to clean up a host from the storeconfig mysql database. I ran the puppetstoredconfigclean.rb script and bumped into the following documented Bug http://projects.puppetlabs.com/issues/12405 which will be fixed in version 2.7.12: # ./puppetstoredconfigclean.rb  kvm0.domb.net ################################################################### /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require’: no such file to load — sqlite3 (MissingSourceFile) from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’ from /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:510:in `require’ from /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active_support/dependencies.rb:355:in… Read More »Cleaning a host entry from MySQL DB with puppet 2.7.11-2

EL 6.2 RHEL6.2 Puppet 2.7.9 The Foreman Mcollective RabbitMQ

  • by

This How to will walk you thru the steps of installing Pupppet, The Foreman, RabbitMQ, and MCollective: 1. Add your hostname to /etc/hosts.conf and /etc/sysconfig/network [root@puppet ~]# echo -e “127.0.0.1 puppet.${DOMAIN} puppet foreman.yourdomain.com foreman localhost” > /etc/hosts [root@puppet ~]# echo -e “NETWORKING=yes\nHOSTNAME=puppet.yourdomain.com” > /etc/sysconfig/network [root@puppet ~]# hostname foreman.yourdomain.com 2. First we need to add the… Read More »EL 6.2 RHEL6.2 Puppet 2.7.9 The Foreman Mcollective RabbitMQ

Bitdefender 2012 free for Linux Mint 12

  • by

Today I was searching anti virus software for Linux and I came across Bitdefender. Surprisingly Bitdefender gives away free licenses for home use. Here are the steps to install Bitdefender on Mint 12: 1. Go to their website http://download.bitdefender.com/SMB/Workstation_Security_and_Management/BitDefender_Antivirus_Scanner_for_Unices/Unix/Current/EN_FR_BR_RO/Linux/ and download the file BitDefender-Antivirus-Scanner-7.6-4.linux-gcc4x.i586.deb.run 2. Set the correct permission for BitDefender-Antivirus-Scanner-7.6-4.linux-gcc4x.i586.deb.run # chmod +x BitDefender-Antivirus-Scanner-7.6-4.linux-gcc4x.i586.deb.run… Read More »Bitdefender 2012 free for Linux Mint 12