Joseph Silva

Server Rack Screws

Joe — Sat, 18 Feb 2012 00:13:36 +0000

Description

Rack screws are used to attach equipment to the vertical uprights of a 19″ rack. Racks do not have a standard thread type. There are three common thread types for rack screws: 10-32, 12-24 and M6. Since the introduction of the square hole rack and Cage Nuts, the exact thread can be selected and changed at will.

10-32 Threads

10-32 threads are historically the original rack screw type. The term 10-32 comes from Unified and American Screw Threads for Bolts, Nuts, and Machine Screws standards published by ANSI B1.1-1974. The number “10″ is simply a size designator with no numerical meaning. The number “32″ refers to 32 threads per inch. You can identify a 10-32 screw by measuring the diameter with a ruler at exactly 3/16″ (0.190″).

12-24 Threads

12-24 is now more common than 10-32 in pre-threaded racks. 12-24 fasteners are slightly larger than 10-32 and have courser threads. The term 12-24 comes from Unified and American Screw Threads for Bolts, Nuts, and Machine Screws standards published by ANSI B1.1-1974. The number “12″ is simply a size designator with no numerical meaning. The number “24″ refers to 24 threads per inch. You can identify a 12-24 screw by measuring the diameter with a ruler at slightly less than 7/32″ (slightly larger than 3/16″ or 0.210″).

M6 Threads

M6 refers to a metric 6mm screw. The outside diameter of the threads is 6mm. The standard metric rack screw is actually an M6 x 0.1mm. The number “0.1mm” refers to 0.1 threads per millimeter. M6 screws are commonly used by HP. You can identify an M6 screw by measuring the diameter with a ruler at slightly more than 7/32″ (0.228″).

QPDF

Joe — Mon, 09 Jan 2012 07:11:37 +0000

QPDF is a great tool for remove encryption on your PDF files:

How Do I Use qpdf To Remove The Password?

Type the following command to install the qpdf:
$ sudo apt-get install qpdf

Decrypt a PDF called input.pdf with YOURPASSWORD-HERE password and create unencrypted output.pdf, enter:

qpdf --password=YOURPASSWORD-HERE --decrypt input.pdf output.pdf

I-495 Capital Beltway

Joe — Wed, 14 Dec 2011 06:23:19 +0000

VPN Manager Development

Test Call: 804-222-1111

Joe — Thu, 24 Nov 2011 05:52:27 +0000

Here is the link:

http://www.testcall.com/222-1111.html

804-222-1111

Test	Method	Purpose
Caller ID Playback	Call (804) 222-1111. The system will answer and speak back your 7 digit Caller ID number and name. (Area code left out for speed of playback). The system uses an inflected speach routine to help the tech remember the information.	Use this test to trace and label lines in a telephone closet from your butt set in one operation without using your cell phone. The name ID feature helps ID the owner of lines in a crowded NID so you can only install surge suppression on YOUR lines.
DTMF Echo	At any time during the call, you may press a touch-tone digit to have the digit spoken back to you. Note. These digits are also remebered for the “Line Designation Service”	Have you ever called a voicemail system or bank by phone system and not been able to make menu selections? This test helps confirm the source of common “after connect” DTMF dialing issues on VOIP telephone systems and services.
CO Line Toner	Press the star key three times in a row to receive an alternating tone. Tone duration is up to 300 seconds.	Use this when you have lost your toner, need tone on a live line, or need additional toners to swap circuits.
NID Designation Service	The digits you press on the DTMF feature document to a web site. Output is in HTML or Excel.	Make sure a tech connects all lines in order to a telephone system, perform telephone line audits, accurately document lines prior to porting.
Voice Echo Press	Press “0″ 3x times and it plays a record beep. Talk for up to 30 seconds. When you stop talking or press any digit, it repeats what you said.	Test one-way audio effects on VOIP systems.

TimeMachine via Windows Share

Joe — Tue, 19 Apr 2011 08:52:07 +0000

http://blog.js-development.com/2010/01/time-machine-backups-to-windows-shared.html

[contest-chimp id="1"]

Plupload Photo Upload with Drag and Drop

Joe — Wed, 23 Mar 2011 06:33:20 +0000

Plupload

Broadcom Wireless Drivers on Fedora

Joe — Mon, 07 Mar 2011 00:49:46 +0000

http://www.cenolan.com/2009/06/installing-broadcom-wireless-sta-driver-in-fedora-11/

X-Sendfile

Joe — Wed, 02 Feb 2011 01:01:01 +0000

Useful Links:

http://www.brighterlamp.com/2010/10/send-files-faster-better-with-php-mod_xsendfile/

http://john.guen.in/past/2007/4/17/send_files_faster_with_xsendfile/

http://ilia.ws/archives/13-sendfile-syscall-and-why-the-2.6-linux-kernel-sucks!.html

Collabnet Issues Update

Joe — Sat, 22 Jan 2011 09:17:08 +0000

Having Issues With Collabnet on 64bit. csvn service wont start. Check logs for error. this might work.

https://ctf.open.collab.net/sf/go/artf5027#3

Issues With DD-WRT GRE Forwarding PPTP

Joe — Sun, 09 Jan 2011 06:46:11 +0000

A quick fix for DD-WRT not forwarding GRE PPTP packets.

Add the following commands to the startup commands (Administration->Commands):

/sbin/insmod xt_connmark /sbin/insmod xt_mark /sbin/insmod nf_conntrack_proto_gre /sbin/insmod nf_conntrack_pptp /sbin/insmod nf_nat_proto_gre /sbin/insmod nf_nat_pptp