Author Archives: hedscratchers

About hedscratchers

A UK ex-pat now living in the USA.

CentOS6.4 – X11 Forwarding session using SSH fails

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

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

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

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

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

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

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

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

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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