• A batch of WS-X6582-2PA may fail when booting under low temperature — Upgrade program available
  Due to a delay in the early start up of the 1.2 voltage rails during the Power up sequence, a batch of WS-X6582-2PA cards in the 7600 platform have been shown to be prone to fail when booting under temperature below 15C. The failure condition may manifest when the card is powered up (booted) for the first time. Cards in working mode are not expected to exhibit this failure.
• Introduction to Computer Science and Programming | MIT Video Course
  Learn, learn, learn.
• What are the essential tools you always have handy when attempting to fix someone's PC problem? – Super User
  This is from superuser.com. Plenty of ideas on this page to help you out.

• Interactive map of Linux kernel
• XenServer 5.6 cdrommon Consumes All CPU Resources | Geek Run Virtualization Blog
  Users of Citrix XenServer 5.6 are experiencing a problem where the cdrommon process begins consuming all CPU resources and affecting virtual machine performance.
• 95th percentile explained — sean adams mirror
  This is a good explanation of 95th percentile billing and why ISPs use it.

--> query-sessions /r with-User X
Sessions with-User X for /Radius
  Sessions for /Radius/SessionManagers/session-mgr-1:
    S432 Key: 04000000000CF660, NAS: NAS.slaptijack.com, NAS-Port: 0, User-Name: X, Time: 21:19:26, Acct-Session-Id: 04000000000CF660
<snipped a lot of lines>

--> count-sessions /r with-User X

Total 469 session(s) with-User X for /Radius/SessionManagers

It seemed like a good idea to have these old sessions be cleared out rather than sitting around forever. These sessions were likely created during testing when things may not have worked perfectly right. Although this can be done by hand (release-sessions), I decided to have it done automatically. You have to change two settings.

First, set the PhantomSessionTimeOut in your session manager. This controls how long it takes for an accounting start record to appear before CAR believes the session is never going to start.

--> cd /Radius/SessionManagers/session-mgr-1/

[ //localhost/Radius/SessionManagers/session-mgr-1 ]
    Name = session-mgr-1
    Description =
    Type = Local
    IncomingScript =
    OutgoingScript =
    AllowAccountingStartToCreateSession = False
    SessionTimeOut =
    PhantomSessionTimeOut =
    SessionKey = User-Name
    ResourceManagers/

--> set PhantomSessionTimeOut "10 Minutes"

Set PhantomSessionTimeOut "10 Minutes"

--> cd /Radius/Advanced/

[ //localhost/Radius/Advanced ]
<snip>
    SessionPurgeInterval =
<snip>

--> set SessionPurgeInterval "1 Hour"

Set SessionPurgeInterval "1 Hour"

--> save

Validating //localhost...
Saving //localhost...

--> reload

Reloading Server 'Radius'...
Server 'Radius' is Running, its health is 10 out of 10

As you remember, we had 469 sessions for user X. After an hour…

--> count-sessions /r with-User X

No active sessions found with-User X for /Radius/SessionManagers

The key to the above is that the String method split() separates the string on any amount of whitespace when no separator is specified.

• Recover Data Like a Forensics Expert Using an Ubuntu Live CD – How-To Geek
• 10 ways your Mac can make you smarter | News | TechRadar UK
  'Nuff said!
• The Silent Number: Ubuntu 10.04 Post-Install Guide: What to do and try after installing Lucid Lynx!

• Linux Newbie Guide: Shortcuts And Commands
  This is useful for my less Linux-savvy friends.
• Removing an object on a photo with GIMP
  Really useful if you need to doctor some images.
• Engineering Firm Moves Away From VMware | Geek Run Virtualization Blog
  Engineering firm CH2M Hill recently began moving away from VMware ESX to Microsoft’s Hyper-V.

 name/radius/1 Error Server 0 ODBC client (DataSource 'my_odbc', Connection 8): SQLExecute failed: SQLState:08S01 NativeError:2006 ErrorText:[MySQL][ODBC 3.51 Driver][mysqld-5.0.21-log] MySQL server has gone away
name/radius/1 Error Server 0 Service odbc has no active remote servers available

Obviously, the MySQL server was still there, but after the wait_timeout expires, the server severs the idle connections. By default, the wait_timeout is set to 8 hours. This is obviously much longer than is usually necessary, but in our test lab, it caused problems every morning.

The fix is to set the KeepAliveTimerInterval in the Remote Servers configuration in Cisco Access Registrar. The value defaults to 0, which means no keep-alives are sent. When you set this value, remember that it is in milliseconds. If you forget, you are going to be send lots and lots of keep-alives to your database server!

• Create IVR applications in minutes :: QuickFuse
  If you try it, let us know how it works out.
• Advanced Bash-Scripting Guide
• Windows 7: 77 Windows 7 Tips
  Everyone likes lists and the number 7.
• Monster Completes Acquisition of HotJobs and Enters into Multi-year Traffic Agreement with Yahoo!
• Unique BooleanField value in Django? – Stack Overflow
  The question here is when you want to have a boolean field with only row being allowed to be true. NullBooleanField is an option (one true, rest null), or you can overwrite the save() method as indicated.

This is what I do instead:

import os
import sys

from django.core.handlers.wsgi import WSGIHandler

sys.stdout = sys.stderr
sys.path.insert(0, os.path.abspath(os.path.dirname(__file__)))
os.environ["DJANGO_SETTINGS_MODULE"] = "settings"
application = WSGIHandler()

This basic handler sets the path for us so that the application can be installed in a different environment without causing problems. It assumes that the WSGI handler is in the top level directory of your application (the same directory as your settings file). It also puts the application directory first in the list. This should have the effect of insuring that modules that come with your application are loaded instead of the system-wide version.

One key feature buried in the Changelog is the ability to attach one disk to several virtual machines. This is especially useful in clustered setups where multiple machines share a single filesystem.

If you haven’t tried VirtualBox yet, I recommend it to anyone that has a need for a virtualized environment. It’s great for developers who need to support different platforms and system administrators who need a compact test environment.