fix a vncserver issue on Scientific Linux 6.1

I tried to connect a vncserver from a Windows 7 machine to a SL 6.1 server. But it gave following error:

Failed To Connect: Connection Refused (10061)

After checked lots of things, I finally found that following command caused the problem:

sudo service vncserver start

(btw: I was logined in as a normal user, not root.)

The output of this command looks good, but you will never connect the vnc server.

The correct commands is to start vncserver as the login user, just type:

vncserver

Linux SATA names

http://utcc.utoronto.ca/~cks/space/blog/linux/LinuxSATANames

pass QEMU monitor commands to virsh

Virsh supports qemu-monitor-command to pass any QEMU monitor commands. Following is an example:

virsh # qemu-monitor-command 45 --hmp info cpus

* CPU #0: pc=0xffffffff8144d27a thread_id=19994

"45" is the domainID
"--hmp" tells the virsh to use human readable mode
"info cpus" are QEMU monitor commands, you can use any supported by QEMU. 

Compiling ATLAS with LAPACK on CentOS 5.4

http://narnia.cs.ttu.edu/drupal/node/23

vim bookmarks

http://vim.wikia.com/wiki/Using_marks

http://www.thegeekstuff.com/2009/02/how-to-add-bookmarks-inside-vi-and-vim-editor/

Modify KVM to provide more dmidecode info

http://blog.prowling.nu/2012/09/modifying-kvm-qemu-kvm-settings-for.html

https://bugzilla.redhat.com/show_bug.cgi?id=493413

Master boot record (MBR) generated by Grub and grub usage

http://thestarman.pcministry.com/asm/mbr/GRUB.htm

http://jbakshi.50webs.com/Linux_tutorial/GRUB/GNU%20GRUB%20simplified.html

IPMI on CentOS/RHEL quick guide

IPMI on CentOS/RHEL

bash tips

http://samrowe.com/wordpress/advancing-in-the-bash-shell/

Bang dollar-sign

!$ is the "end" of the previous command. Consider the following example: We start by looking for a word in a file

1. $ grep -i joe /some/long/directory/structure/user-lists/list-15

if joe is in that userlist, we want to remove him from it. We can either fire up vi with that long directory tree as the argument, or as simply as

1. $ vi !$

Which bash expands to:

1. $ vi /some/long/directory/structure/user-lists/list-15

grep and regular expression

http://www.thegeekstuff.com/2011/01/advanced-regular-expressions-in-grep-command-with-10-examples-%E2%80%93-part-ii/

http://www.cyberciti.biz/faq/grep-regular-expressions/

oprofile tutorial

http://ssvb.github.io/2011/08/23/yet-another-oprofile-tutorial.html

pdflush link

http://www.westnet.com/~gsmith/content/linux-pdflush.htm

full git history of Linux kernel

http://stackoverflow.com/questions/3264283/linux-kernel-historical-git-repository-with-full-history

http://archive.org/details/git-history-of-linux

http://lwn.net/Articles/285366/