Preventing Google Cache

Q: How does someone prevent Search Engine caching?

A: There is really no 100% method short of changing access from public to private. Websites that are “offline” can often be found using using google.com or archive.org.

Here are five options to preventing cached Engines:

1). Password protect the directory with your files.

2). Use a utility like WinRAR or WinZip to zip the file and password protect the contents.
winrar: http://www.win-rar.com/passwordprotection.html
winzip: http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2005082609530939
(Downside: there are tools to break these passwords)

3). Add the file to a web accessible space but DO NOT link to the document from any other page.
(Downside: anyone could link to the page, unlikely but possible)

4). If it’s a pdf or word document you can add a password to the document.
for word: http://www.uwo.ca/its/doc/hdi/email/word-excel-protect.html
for pdfs: http://www.palomar.edu/at/howdoi/passwordPDF.htm
(Downside: again, there are tools to break these passwords)

5). Add a ‘robots.txt’ to the directory you want google NOT to browse, see: http://sitemaps.blogspot.com/2006/02/using-robotstxt-file.html
(Downside: can still be cached, most Engines respect robots file though)

-AK

The X-server can not be started on display :0…

Q: What if the X-server does not start when the system is powered on or I see the error: “The X-server can not be started on display :0…”

A: Logon to the system’s LOCAL console as root:

root prompt> kdmconfig (select “Xsun server”)

Video Card:
Video Devices:
ATI Rage XL graphics controller with 8MB memory
Aka to Solaris 10 as:
ATI RAGE PRO / PRO TURBO / LT PRO / XL (8MB)

Monitor Types:
MultiFrequency 64 Khz (up to 1600×1200 interlaced)

Screen Sizes:
17-inch (43cm)

Resolution/Color/Size/Refresh Rate:
1024×768 – 256 colors @75Hz

Mouse:
USB Mouse

Keyboard:
Generic US-English(104-Key)

Reboot the system with the mouse and keyboard (noted above) and make sure the settings work

-AK

Setting Solaris Shells

First, take a look at /etc/passwd

Question: As a default user in Solaris how do you know who you are?

Most people type ‘whoami’ but this in unavailable in the default path. The path to ‘whoami’ actually exists in /usr/ucb/. But who wants to type /usr/ucb/whoami every time you want to know your user? Just add to your user profile. BUT, NEVER add “.” to the root PATH. Here are the profile files associated with the different shells (set in /etc/passwd):

.profile (Bourne and Korn shells) #/bin/sh – Bourne #/bin/ksh – Korn shell
.bash_profile (Bourne Again shell)#/bin/bash – Bourne Again shell
.login and .cshrc (C shell) #/bin/csh – C shell
.tcshrc and .cshrc (TC shell) #/bin/tcsh – TC shell
.zlogin and .zshrc (Z shell) #/bin/zsh – Z shell

ArcMap Hangs when opening after install

Does ArcMap hangs when opening?

Sometimes after upgrading ArcGIS on a Windows system the program will hang when the user first tries to open the program. This is typical when the user makes a significant upgrade (like from ArcGIS 8.3 to ArcGIS 9.0 or 9.1).

Solution:

Rename the user profile created by ESRI. This is typically locate in C:\Documents and Settings\Username\Application Data\ESRI (where username of course is your username)

You may also have to modify your folder settings to “view hidden folders”. In a Windows Explorer Window Select Tools > Folder Options…

So rename C:\Documents and Settings\Username\Application Data\ESRI to
C:\Documents and Settings\Username\Application Data\ESRI_old.

ArcMap/Catalog/Globe/Reader/etc. should open fine now,
-AK

SUNW – Sun Microsystems, Inc.

Thoughts:

Sun is smart and it’s developing some great technologies like dtrace for the Solaris 10 operating system. The ZFS filesystem is also a marvel of developemnt and a useful filesystem for any mid-level business. BUT, it’s missing the boat on the end-user. Mastering the journaling filesystem is NOT what people are looking for. I think Companies like Google are excelling because their new software appeals to the masses and is easy to use. In addition Sun hardware is still way too expensive compared to the competition.

-Andy

RAID Function does not work with SunFire X2100

Just a note from http://www.sun.com/servers/entry/x2100/faq.jsp#q_15:

“Q: What kind of Raid is supported in the Sun Fire X2100?

A:Only Raid 0 and 1 are supported, and currently only in Windows 2003 Server OS. There is also an Open Source driver for Linux, that is not supported by Sun. It is located at http://people.redhat.com/~heinzm/sw/dmraid/”

-AK