Allow users to do remote login through terminal services

http://technet.microsoft.com/en-us/library/cc781509.aspx

Tip:
To open group policy object editor, you need not add a snap gpedit.msc in Windows Start menu. This is a short cut.

fold it...

If vi editor complains that line is too long, then do the following.
1. Close the file.
2. use fold command as - fold debug.out > debug_fold.out
3. Use debug_fold.out

Configuring Reverse Proxy in few secs.

Sometimes we may have to configure a load balancer in front of bunch of web servers or just one web server to test some problem. Configuring load balancer could take time. A simple way to do this is to configure reverse proxy plugin in a web server or an app server that is already deployed. It takes few seconds to do this.

For ex: If you have Sun Web sever 7.0 configured, it takes few seconds to do this.

Click on Configurations tab and select the configuration.
Click Virtual Servers tab and select the virtual server.
Click Content Handling > Reverse Proxy tab.
Click New Proxy URI button.

Specify values for the following parameters:
URI - The reverse proxy URI
Server URL - Comma separated URLs of the remote server.
If multiple values are given, the server will distribute load among the specified servers.

If you want to simply route all requests to another web server or app server you can say
URI - /
Server URL - http://avatar.red.iplanet.com:80/opensso

Let us say this reverse proxy plugin is configured on http://bull.red.iplanet.com:5555
webserver, with above paramters, any http request to bull.red.iplanet.com:5555 will be routed
to avatar.red.iplanet.com:80 and user accessing bull,red,iplanet.com:80 will never know that
he is indeed accessing avatar.red.iplanet.com:80.

Tweak XP not to show "Recent Documents"

You can tweak XP not to show Recent Documents. This will help with Privacy if computer is shared and with faster reboots.

Open your registry using regedit from start menu --> run.

Create a new DWORD value, or modify the existing value called 'NoRecentDocsHistory'

User key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
System key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
Value Name: NoRecentDocsHistory
Data Type: REG_DWORD (DWORD Value)
Data Value: (0 = disable restriction, 1 = enable restriction)

Exit your registry.

Restart for the changes to take effect.

Useful notes on tomcat container

Start Up Tomcat

(3.1) Tomcat can be started by executing the following commands:

$CATALINA_HOME\bin\startup.bat (Windows)

$CATALINA_HOME/bin/startup.sh (Unix)

(3.2) After startup, the default web applications included with Tomcat will be
available by visiting:

http://localhost:8080/

(3.3) Further information about configuring and running Tomcat can be found in
the documentation included here, as well as on the Tomcat web site:

http://tomcat.apache.org


(4) Shut Down Tomcat

(4.1) Tomcat can be shut down by executing the following command:

$CATALINA_HOME\bin\shutdown (Windows)

$CATALINA_HOME/bin/shutdown.sh (Unix)


==================================================
Advanced Configuration - Multiple Tomcat Instances
==================================================

In many circumstances, it is desirable to have a single copy of a Tomcat
binary distribution shared among multiple users on the same server. To make
this possible, you can pass a "-Dcatalina.base=$CATALINA_BASE" argument when
executing the startup command (see (2)). In this
"-Dcatalina.base=$CATALINA_BASE" argument, replace $CATALINA_BASE with the
directory that contains the files for your 'personal' Tomcat instance.

When you use this "-Dcatalina.base=$CATALINA_BASE" argument, Tomcat will
calculate all relative references for files in the following directories based
on the value of $CATALINA_BASE instead of $CATALINA_HOME:

* bin - Only setenv.sh (*nix) and setenv.bat (windows)

* conf - Server configuration files (including server.xml)

* logs - Log and output files

* webapps - Automatically loaded web applications

* work - Temporary working directories for web applications

* temp - Directory used by the JVM for temporary files (java.io.tmpdir)

If you do not pass the "-Dcatalina.base=$CATALINA_BASE" argument to the
startup command, $CATALINA_BASE will default to the same value as $CATALINA_HOME,
which means that the same directory is used for all relative path resolutions.


================
Troubleshooting
================

There are only really 3 things likely to go wrong during the stand-alone
Tomcat install:

(1) The most common hiccup is when another web server (or any process for that
matter) has laid claim to port 8080. This is the default HTTP port that
Tomcat attempts to bind to at startup. To change this, open the file:

$CATALINA_HOME/conf/server.xml

and search for '8080'. Change it to a port that isn't in use, and is
greater than 1024, as ports less than or equal to 1024 require superuser
access to bind under UNIX.

Restart Tomcat and you're in business. Be sure that you replace the "8080"
in the URL you're using to access Tomcat. For example, if you change the
port to 1977, you would request the URL http://localhost:1977/ in your browser.

(2) An "out of environment space" error when running the batch files in
Windows 95, 98, or ME operating systems.

Right-click on the STARTUP.BAT and SHUTDOWN.BAT files. Click on
"Properties", then on the "Memory" tab. For the "Initial environment" field,
enter in something like 4096.

After you click apply, Windows will create shortcuts which you can use
to start and stop the container.

Troubleshooting virtual memory

Process Virtual Memory

Source:

http://www.princeton.edu/~unix/Solaris/troubleshoot/vm.html

Each process maps either 2^32 or 2^44 bytes of memory (depending on whether the OS is running in 32 or 64-bit mode). This works out to 4GB or 16TB. Not all of this memory is allocated (used); the virtual memory is used as address space that can be mapped to actual memory resources.

Virtual memory structure for a process can be described as in this diagram:

Kernel While this is part of the address space, it cannot be addressed directly by the process. It must be addressed via system calls.

Stack Used by the program for variables and storage. It grows and shrinks in size depending on what routines are called and what their stack space requirements are. It is normally about 8MB in size.

Shared Libraries Shared libraries are position independent so that they can be shared by all programs that want to use them. One common example is libc.so.

hole This is the address space that is unallocated and unused. It does not tie up physical memory. For most processes, this is the largest portion of the virtual memory for the process.

heap Used for some types of working storage. It is allocated by the malloc function.

BSS Uninitialized variables. These are not part of the executable file and their initial value is set to zeros.

Data Global variables, constants, static variables from the program.

Text Set of instructions from the compiler-generated executable file.

The virtual memory map for a process can be displayed using the pmap command.

Additional information is available on the Processes page.

Extracting .bz2 or .bzip2 files

To extract the file file.bz2, use

bzip2 -d file.bz2


This will an uncompressed file in the current directory called ‘file’ and will delete the original bz2 archive. If you want to keep the original file, add the -k option like

bzip2 -dk file.bz2


A useful option for bzip2 is the -c switch which causes bzip2 to write the uncompressed output to stdout which can easily be redirected to another option. For instance, to search the compressed file file.bz2 for the string tech-recipes, use:

bzip2 -dc file2.bz2 | grep tech-recipes

source:
http://www.tech-recipes.com/rx/1495/extract-a-bz2-or-bzip2-file/


Astrology: Software Engineers! Don't Worry For Lost Job

This is an article from www.greatandhra.com. Look at the funny explanation given by an astrologer :-)

-------------

US Indians are quivering for losing jobs in SW field from quite some days and that is known for all. What astrology said about that? When greatandhra.com approached Hyderabad based veteran astrologer Vakkantham Chandra Mouli enquiring if there is any astrological connection to it, he said:

"No body should worry for losing jobs. It is the destiny that drives ultimately. Many lose jobs and they start up their own business. When there is something better, how can the present jobs sustains with you? It is the individual destiny that decides the fate of various lives but not the market and trend. I heard that software engineers in USA are worried on every Friday as ousting orders are being given at the end of that day. But please don't get dejected. The benefic planets try to give you something big and when you are in inertia to come out of that, those planets pull you out either by destiny or by force. It is the forcibly destiny that can be applied for many now. During the 2001 mishap, many software professionals lost jobs and started up their new businesses and discovered new ways of earning. They rocked up as per their destiny. And now coming to the flip side, when your destiny is to face troubles for a brief time, you are bound to pass through that. Even though the trend is good, you may lose jobs and end up in ordeals if your destiny decides that. Things are moving by individual destinies but not collective.

And taking the Vaastu into considering he said, "The Career place as per Vaastu is north. And for wealth and wealth from woman it is South East. I have been looking into several horoscopes where there is no scope for losing jobs or ending up in troubles but still received ousting orders. When I enquired about North and South-East places in their homes, I understood that they made some mistakes unknowingly. When those mistakes were rectified with small remedies and corrections, things got settled down"

So, Astro Maestro Vakkantham Chandramouli comes up with this study on present condition prevailing for SW professionals in USA.

------------------------

Paruthi Veeran - a movie worth watching for sure

A clip from a madurai slang movie "Paruthi Veeran".

http://www.youtube.com/watch?v=6MiOJcA5X9A

Cool zembly.com to create social networking apps.

Try using Sun's social networking platform http://zembly.com/
to create social apps on most popular networking sites like
facebook, meebo. It uses sun's infrastructure as service network.com

How to create a facebook app using
http://zembly.com/docs/tutorials/fb-guessnumber/fb-guessnumber.html

CheatSheet - Write a facebook application in 10 mins

Click here for blog link - http://gathadams.com/2007/06/18/how-to-write-a-facebook-application-in-10-minutes/

Synching time with centralized server on unix machines

/usr/sbin/ntpdate ntp_server_ip_address

.bashrc script - have fun with my bash script on unix

export PATH=/usr/bin:\
/usr/sbin:\
/usr/sfw/bin:\
/usr/sfw/sbin:\
$ANT_HOME/bin:\
/net/flashy.red.iplanet.com/export/d1/S11/SUNWspro/bin:\
/home/la204265/installations/SunStudio12/SUNWspro/bin:\
$JAVA_HOME/bin:\
/bin:/sbin:\
/usr/ccs/bin:\
/usr/proc/bin:\
/usr/platform/sun4u/sbin:\
/.secure/bin:\
/.secure/arch/sparc_sun_solaris2.3:\
/usr/local/bin:\
/usr/local/sbin:\
/usr/local/netscape:\
/usr/dist/exe:\
~/bin:\
/tools/ns-arch/sparc_sun_solaris2.10/bin:\
$PATH

export MANPATH=/usr/man:\
/usr/dt/man:\
/usr/openwin/share/man:\
/usr/local/man:\
/export/man:$MANPATH

export LD_LIBRARY_PATH=/usr/lib/mps:\
/usr/lib:\
/tools/ns-arch/soft/gcc-3.2.1/run/default/sparc_sun_solaris2.10/lib:\
/usr/local/lib:\
/lib:\
/usr/X/lib:\
/usr/ucblib:\
/usr/suntools/internal/SUNWspro/lib:\
/usr/local/ssl/lib:\
/usr/local/lib/gtk/themes/engines:\
/usr/local/ssl/lib:\
/net/flashy.sfbay/usr/re/tools/sparc/lib:\
$LD_LIBRARY_PATH

export CVSROOT=:pserver:la204265@jescvs.sfbay.sun.com:/m/src

export ANT_HOME=/home/la204265/work/tools/ant/apache-ant-1.7.0

export JAVA_HOME=/share/builds/components/jdk/1.5.0/SunOS
export JAVAHOME=/share/builds/components/jdk/1.5.0/SunOS
export JDK14_COMPILER_PATH=/share/builds/components/jdk/1.4.1/SunOS

export CVS_AM71_TAG="cvs co -r AM_MAIN_BRANCH DSAME"
export CVS_AM70_TAG="cvs co -r DSAME70_PATCH_BRANCH DSAME"
export CVS_AM63_TAG="cvs co -r DSAME63_RTM_BRANCH DSAME"
export CVS_AGENT22_TAG="cvs co -r WebAgents_22_RTM_Branch Agents"
export CVS_AGENT21_TAG="cvs co -r DSAMEagents21_sustaining_branch Agents"
export CVS_CHECKIN_FORMAT="cvs commit -m 'Bug: Esc: CRT: Review:' filename"
export ENV_ECLIPSE="~/tools/eclipse/eclipse -vmargs -Xmx700M"

export SUNSTUDIO_12=/home/la204265/installations/SunStudio12/SUNWspro/bin/sunstudio

export VISUAL=vi
export EDITOR=vi
export TETEXDIR=/usr/local/teTeX
export INFOPATH=$TETEXDIR/info

function get_xserver ()
{
echo $(hostname)

if [[ $(hostname) == "muir" ||
$(hostname) == "mojave" ||
$(hostname) == "lassen" ||
$(hostname) == "avatar" ||
$(hostname) == "koval" ]]; then
DISPLAY="avatar.red.iplanet.com:0.0"
fi
}

if [ -z ${DISPLAY:=""} ]; then
get_xserver
fi

export DISPLAY

#---------------
# Some settings
#---------------

ulimit -S -c 0 # Don't want any coredumps
set -o notify
set -o noclobber
set -o ignoreeof
#set -o nounset
#set -o xtrace # Useful for debuging

# Enable options:
shopt -s cdspell
shopt -s cdable_vars
shopt -s checkhash
shopt -s checkwinsize
shopt -s mailwarn
shopt -s sourcepath
shopt -s no_empty_cmd_completion # bash>=2.04 only
shopt -s cmdhist
shopt -s histappend histreedit histverify
shopt -s extglob # Necessary for programmable completion

# Disable options:
shopt -u mailwarn
unset MAILCHECK # I don't want my shell to warn me of incoming mail

export TIMEFORMAT=$'\nreal %3R\tuser %3U\tsys %3S\tpcpu %P\n'
export HISTIGNORE="&:bg:fg:ll:h"
export HOSTFILE=$HOME/.hosts # Put a list of remote hosts in ~/.hosts

#-----------------------
# Greeting, motd etc...
#-----------------------

# Define some colors first:
red='\e[0;31m'
RED='\e[1;31m'
blue='\e[0;34m'
BLUE='\e[1;34m'
cyan='\e[0;36m'
CYAN='\e[1;36m'
NC='\e[0m' # No Color
# --> Nice. Has the same effect as using "ansi.sys" in DOS.

# Looks best on a black background.....
echo -e "${CYAN}This is BASH ${RED}${BASH_VERSION%.*}\
${CYAN} - DISPLAY on ${RED}$DISPLAY${NC}\n"
date
if [ -x /usr/games/fortune ]; then
/usr/games/fortune -s # makes our day a bit more fun.... :-)
fi

function _exit() # function to run upon exit of shell
{
echo -e "${RED}Hasta la vista, baby${NC}"
}

trap _exit EXIT

#---------------
#---------------
# Shell Prompt
#---------------

if [[ "${DISPLAY#$HOST}" != ":0.0" && "${DISPLAY}" != ":0" ]]; then
HILIT=${red} # remote machine: prompt will be partly red
else
HILIT=${cyan} # local machine: prompt will be partly cyan
fi

alias cls=clear
alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'
# -> Prevents accidentally clobbering files.
alias mkdir='mkdir -p'

alias h='history'
alias j='jobs -l'
alias r='rlogin'
alias rt='rlogin -l root'
alias rl='rlogin -l la204265'
alias which='type -all'
alias ..='cd ..'
alias path='echo -e ${PATH//:/\\n}'
alias print='/usr/bin/lp -o nobanner -d $LPDEST'
# Assumes LPDEST is defined
alias pjet='enscript -h -G -fCourier9 -d $LPDEST'
# Pretty-print using enscript
alias background='xv -root -quit -max -rmode 5'
# Put a picture in the background
alias du='du -kh'
alias df='df -kTh'

# The 'ls' family (this assumes you use the GNU ls)
alias la='ls -Al' # show hidden files
alias ls='ls -hF' # add colors for filetype recognition
alias lx='ls -lXB' # sort by extension
alias lk='ls -lSr' # sort by size
alias lc='ls -lcr' # sort by change time
alias lu='ls -lur' # sort by access time
alias lr='ls -lR' # recursive ls
alias lt='ls -ltr' # sort by date
alias lm='ls -al |more' # pipe through 'more'

alias tree='tree -Csu' # nice alternative to 'ls'

# tailoring 'less'
alias more='less'
export PAGER=less
export LESSOPEN='|/usr/bin/lesspipe.sh %s 2>&-'
# Use this if lesspipe.sh exists.
export LESS='-i -N -w -z-4 -g -e -M -X -F -R -P%t?f%f \
:stdin .?pb%pb\%:?lbLine %lb:?bbByte %bb:-...'

# spelling typos - highly personnal :-)
alias xs='cd'
alias vf='cd'
alias moer='more'
alias moew='more'
alias kk='ll'

#----------------
# a few fun ones
#----------------

function xtitle ()
{
case "$TERM" in
*term | rxvt)
echo -n -e "\033]0;$*\007" ;;
*)
;;
esac
}

# aliases...
alias ecl='/home/la204265/tools/eclipse/eclipse -vmargs -Xmx700M'
alias top='xtitle Processes on $HOST && top'
alias make='xtitle Making $(basename $PWD) ; make'
alias ncftp="xtitle ncFTP ; ncftp"

remoteon

Telugu translation of "Software Architect"

Vishaya Gana Visleshukudu :-)

Good paintings

There are some really talented people around us. We feel good to see them around. Look at this blog that contains Liz's daily paintings.

http://dailypaintingbyliz.blogspot.com/

A good song in Gamyam

There is a fast paced song in the telugu movie Gamyam. It starts with lyrics "Enthavaraku... Yendhukoraku..." It has some good lyrics in it. One line that I liked in particular is:

"Satruvulu nee loni lopale... Snehitulu nee loni ishtale..."

which translates to

Enemies are defects in your character and friends are goodies in your character!

I feel it is very true.

Here is the youtube link for the song:
http://www.youtube.com/watch?v=Eopl4GhWW2Q