How to prepare older Linux systems for 2007 DST change

Daylight Saving Time In the United States 1990 Through 2015

Year	DST Begins 2 a.m. (First Sunday in April)	DST Ends 2 a.m. (Last Sunday in October)
1990	April 1	October 28
1991	April 7	October 27
1992	April 5	October 25
1993	April 4	October 31
1994	April 3	October 30
1995	April 2	October 29
1996	April 7	October 27
1997	April 6	October 26
1998	April 5	October 25
1999	April 4	October 31
2000	April 2	October 29
2001	April 1	October 28
2002	April 7	October 27
2003	April 6	October 26
2004	April 4	October 31
2005	April 3	October 30
2006	April 2	October 29
DST Start and End date changes beginning March 2007
Year	DST Begins 2 a.m. (Second Sunday in March)	DST Ends 2 a.m. (First Sunday in November)
2007	March 11	November 4
2008	March 9	November 2
2009	March 8	November 1
2010	March 14	November 7
2011	March 13	November 6
2012	March 11	November 4
2013	March 10	November 3
2014	March 9	November 2
2015	March 8	November 1

Daylight Saving Time updates to Linux operating systems for year 2007

Red Hat updates are available for the following current releases:
Affected Products:   

   Red Hat Desktop (v. 3)
   Red Hat Desktop (v. 4)
   Red Hat Enterprise Linux AS (v. 3)
   Red Hat Enterprise Linux AS (v. 4)
   Red Hat Enterprise Linux ES (v. 3)
   Red Hat Enterprise Linux ES (v. 4)
   Red Hat Enterprise Linux WS (v. 3)
   Red Hat Enterprise Linux WS (v. 4)

This involves an update to:

RHEL 2.1 -> glibc of at least level glibc-2.2.4-32.23

RHEL 3 & 4 -> tzdata of at least level tzdata-2006m-1.EL3 or tzdata-2006m-1.EL4 respectively.

To prepare older Linux systems for 2007 DST change:

1) Download and install the latest tzdata rpm:

# rpm -u tzdata-2006m-3.el4.noarch.rpm

2) In order for the change to be effective, you need to copy over the /etc/localtime

# zdump -v /etc/localtime | grep 2007
/etc/localtime Sun Apr 1 06:59:59 2007 UTC = Sun Apr 1 01:59:59 2007 EST isdst=0 gmtoff=-18000
/etc/localtime Sun Apr 1 07:00:00 2007 UTC = Sun Apr 1 03:00:00 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Oct 28 05:59:59 2007 UTC = Sun Oct 28 01:59:59 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Oct 28 06:00:00 2007 UTC = Sun Oct 28 01:00:00 2007 EST isdst=0 gmtoff=-18000

# cp /usr/share/zoneinfo/America/New_York /etc/localtime

# zdump -v /etc/localtime | grep 2007
/etc/localtime Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0 gmtoff=-18000
/etc/localtime Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 EST isdst=0 gmtoff=-18000

Also search you system for any application have their own copy of localtime and update those if needed:
# find / -name localtime -ls

OR

To be safe, simply reboot your server and this will ensure all applications will use the DST changes.
#rpm -u tzdata-2006m-3.el4.noarch.rpm; reboot

To verify if your server will be ready for the new DST time changes in 2007
# zdump -v EST5EDT | grep 2007
# zdump -v CST6CDT | grep 2007

Increase your RAM? free of cost…Really Worth It!!!!

A Very useful tip. Please try this and use RAM efficiently.Now this is called a tip of the year! While working with the Task Manager I observed the following. You can also try it out. 1.Start any application, say Word. Open some large documents.2.Now start the Task Manager processor tab and sort the list in descending order on Memory Usage. You will notice that Winword.exe will be somewhere at the top, using multiple MBs of memory. Note down the number. 3.Now switch to Word and simply minimise it. (Do not use the Minimize All option of the task bar).4. Now go back to the Task Manager and see where Winword.exe is listed. Most probably you will not find it at the top. You will typically have to Scroll to the bottom of the list to find Word. Now check out the amount of RAM it is using. Compare it with the original. Surprised? The memory utilisation has reduced by a huge amount.5.So where is the tip of the year? Simple? Minimise each application that you are currently not working on by clicking on the Minimize button, andyou can increase the amount of available RAM by a substantial margin. Depending upon the number and type of applications you use together, the difference can be as much as 50 percent of extra RAM?and all this is free of cost!

It is nothing unexpected actually. In any multitasking system, minimizing an application means that it won’t be utilised by the user right now. Therefore, the OS automatically makes the application use virtual memory and keeps bare minimum amounts of the code in physical RAM. I am sure it would work exactly the same way even in earlier versions of Windows (and any other multitasking system).

Install CVS server on Ubuntu 6.10

1) Login as root user and check that the software packages, or higher versions,are installed in your Server

gcc version 4.1.2

If not, please Install/upgrade the Packages by using the following commands as Examples.  

Install G++ files:
#apt-get install g++

Install CVS files:
#apt-get install cvs

3. Create the User to install and compile the apache

#groupadd cvsd

#useradd -u 1010 -g cvsd -d /home/cvsd -m -s /bin/ksh -c “CVS Server” cvsd 

If the folder cvsrepo does not exist, then create it ..

#mkdir cvsrepo

#chown –R cvsd:cvsd cvsrepo 

Install the CVS server:Download the required following package

#wget http://ch.tudelft.nl/~arthur/cvsd/cvsd-1.0.13.tar.gz 

Extract the cvsd package and install by using the following steps.

$tar –zvxf cvsd-1.0.13.tar.gz

$cd /usr/src/cvsd-1.0.13 

$./configure –prefix=/var/lib/cvsd/ \ /var/lib/cvsd/ 

CVSD Installation successfully complete $ cd /var/lib/cvsd 

cvsd-buildroot /var/lib/cvsd and then initilize the repository

sudo cvs -d /var/lib/cvsd/cvsrepo init

create a user and password

sudo cvsd-passwd /var/lib/cvsd/cvsrepo rbalara

#vi /var/lib/cvsd/cvsrepo/CVSROOT/config

Change

“SystemAuto=no”

Test  

cvs -d :pserver:rbalara@localhost:/cvsrepo login 

cvs -d :pserver:rides@localhost:/cvsrepo checkout 

Ravikiran in Edison, NJ

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