Author Archives: hedscratchers

About hedscratchers

A UK ex-pat now living in the USA.

CentOS6.4 – X11 Forwarding session using SSH fails

Posted on September 27, 2013

From time to time I use X11 forwarding to connect to various web management interfaces on remote servers, I had just done a new install of CenOS6.4 64-bit minimal to try out Backuppc, went to run the webGUI by doing … Continue reading →

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Samba troubleshooting tips & tricks

Posted on September 25, 2013

You are having problems getting samba to do your beck and call, and it’s not working as it should, well here a few things to help you diagnose things – it’s assumed you have the basic already configured. First, crank … Continue reading →

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Rolling back Samba to an older version on RHEL

Posted on September 25, 2013

I recently had the need to downgrade the version of samba that comes with RHEL6.4 64-bit, I had authentication issues within our domain environment with the newer versions, older versions of samba seem to work fine, so I needed to … Continue reading →

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Creating a SELinux policy for the named daemon in a chrooted BIND9 configuration

Posted on September 5, 2013

I recently configured chrooted BIND9 slave on RHEL6.4 64-bit, with SELinux enabled, with this enabled the named daemon failed to start, easily tested by disabling SELinux, and then starting it, which would then be successful.  So, I needed to create … Continue reading →

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RHEL6.4-64 – No networking after cloning via template VM using vSphere client

Posted on August 28, 2013

I had a VMware VM of a RHEL6.4 64-bit  machine, security hardened to CIS standards, converted to VM template within vSphere as it was going to be reused, I then used ‘Clone to New Virtual Machine’ to…well..erm..clone it, this worked … Continue reading →

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Centos6.4 64-bit – No networking after clean install

Posted on August 5, 2013

I was recently running up a new CentOS6.4 64-bit minimal install on VMware vCenter v5  & vSphere client v5, and during the install of CentOS you can configure the networking manually, which I usually do for servers.  This VM server … Continue reading →

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Why HD TV could be so much better

Posted on July 10, 2013

Interesting article on theregister, basically explaining how modern TV is what it is, and how it could be much better. http://www.theregister.co.uk/2013/06/25/the_future_of_moving_images_the_eyes_have_it/

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How to blow away a Solaris zone

Posted on June 18, 2013

You’ve been monkeying around with Solaris zones, and now you want to blow away your screwed up test zone, here’s how you do it. To completely delete/remove a Solaris zone you essentially have 4 step process. Shutdown the zone Halt … Continue reading →

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pam_tally & pam_tally2

Posted on March 26, 2013

There a few minor differences between pam_tally & pam_tally2, just enough to trip you over and end up in another head scratching moment! pam_tally,  seems to have fallen out of favour for RHL6 & >= CentOS 6, they  seemed to … Continue reading →

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