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DH Unlimited is comprised solely of me, Dave. I've been doing freelance web development since 2010, mainly for the purpose of expanding my technical skill set.


Site Updated
01/06/2016

Intel Graphics for CentOS 6

Thursday, October 15, 2015 3:09 pm

Recently, I started seeing error messages regarding many bad sectors in the hard drive in my HP laptop. After looking at various websites I determined that it wouldn’t be a bad idea to purchase a new hard drive as opposed to trying to fix this issue with disk utilities. 


After purchasing and installing the new hard drive, I had to install CentOS again. One thing I quickly noticed is that the default Installer did not seem to work so I tried “Install with basic video driver”. Long story short, after doing the install with the basic video driver I had to do 2 things to enable CentOS to use the Intel graphics card.  


1. Edit the /etc/X11/xorg.conf file replacing the word “vesa” with “intel”
2. Edit the /boot/grub/menu.lst file by removing the word “nomodeset”  


Credit is voluntarily given to the person who created the website below.
https://jehurst.wordpress.com/2011/06/26/rhel-6-for-the-clueless-intel-graphics/



Tag(s): Linux 

Happy SysAdmin Day!

Friday, July 31, 2015 9:54 am

http://sysadminday.com/



Tag(s): Windows  Work  Linux 

Apache Client Certificate Authentication

Thursday, July 16, 2015 11:21 am

Below is a useful link for implementing authentication using client certificates and Apache.
http://wiki.cacert.org/ApacheServerClientCertificateAuthentication



Tag(s): Web Programming  Work  Linux 

PostgreSQL Current Process List

Wednesday, May 20, 2015 4:26 pm

To kill a process:
SELECT
    pg_terminate_backend(procpid)
FROM
    pg_stat_activity
WHERE
    — don’t kill my own connection!
    procpid <> pg_backend_pid()
    — don’t kill the connections to other databases
    AND datname = ‘database_name’;
    
Or you can just leave off the FROM clause
SELECT pg_terminate_backend(procpid);

To view process details:
SELECT datname, procpid, current_query FROM pg_stat_activity;



Tag(s): PostgreSQL 

CompTIA Frames

Wednesday, April 29, 2015 9:49 am

Why can’t CompTIA reward their certification holders with a certificate that is a normal size? What’s up with the 8.5” x 5.5” dimensions??

http://comptiaframes.com/



Tag(s): CompTIA 
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