There is IT in Helsinki

There is IT in Helsinki

#centos Articles

Lustre 2.5 + CentOS6 Test in OpenStack

Reason: Testing to Lustre 2.5 from a clean CentOS 6.5 install in an openstack. Three VMs: two servers, one MDS, one OSS and one Client. CentOS65 on all. An open internal ethernet network for the lustre traffic (don't forget firewalls). Yum updated to latest kernel. Two volumes presented …

Setup a 3 Node Lustre Filesystem

Introduction Lustre is a filesystem often used by clusters because many computers can mount the filesystem simultaneously. This is a small log/instruction for how to setup Lustre in 3 virtualized machines (one metadata server, one object storage server and one client). Basic components: VMWare Workstation 3 x CentOS 6 …
  • 2012-06-13
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Red Hat Certification – RHCE - Course Outline

Howdy! In case you saw my previous posts I've been prepping for a RHCE course the last couple of weeks. Here are the posts based on the objectives: http/https dns ftp nfs smb smtp ssh ntp Odds are quite high that I've missed something or not gone deep enough …
  • 2012-06-08
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Red Hat Certification – RHCE – Network Services – NTP

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-06-06
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Red Hat Certification – RHCE – Network Services – ssh

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-06-04
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Red Hat Certification – RHCE – Network Services – e-mail

1st post System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-05-14
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Red Hat Certification – RHCE – Network Services – NFS

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-05-14
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Red Hat Certification – RHCE – Network Services – SMB

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-05-12
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Red Hat Certification – RHCE – Network Services – FTP

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …
  • 2012-05-08
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Red Hat Certification – RHCE – Network Services – DNS

1st post - System Management and Configuration Objectives Network services Network services are an important subset of the exam objectives. RHCE candidates should be capable of meeting the following objectives for each of the network services listed below: Install the packages needed to provide the service. Configure SELinux to support the …