Configuring vnc on CentOS

It was a pain, as most of the latest linux distros come with out-of-box vnc support,

but I finally found a good reference on CentOS site:

http://wiki.centos.org/HowTos/VNC-Server

To make your centOS server vnc ready, you just need to :

1. Create your VNC users.
2. Set your users' VNC passwords.
3. Edit the server configuration.
4. Customize xstartup scripts.

$ su -

$ useradd vncuser

$ cd .vnc

$ vncpasswd

$ vi /etc/sysconfig/vncservers

VNCSERVERS="1:vncuser" VNCSERVERARGS[1]="-geometry 800x600"

$/sbin/service vncserver start

$/sbin/service vncserver stop

$ cd .vnc

$ vi xstartup

Edit xstartup. The original should look like:

#!/bin/sh # Uncomment the following two lines for normal desktop: # unset SESSION_MANAGER # exec /etc/X11/xinit/xinitrc [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey vncconfig -iconic & xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & twm & 

Add the line indicated below to assure that an xterm is always present, and uncomment the two lines as directed if you wish to run the user's normal desktop window manager in the VNC. Note that in the likely reduced resolution and color depth of a VNC window the full desktop will be rather cramped and a look bit odd. If you do not uncomment the two lines you will get a gray speckled background to the VNC window.

#!/bin/sh # Add the following line to ensure you always have an xterm available. ( while true ; do xterm ; done ) & # Uncomment the following two lines for normal desktop: unset SESSION_MANAGER exec /etc/X11/xinit/xinitrc [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey vncconfig -iconic & xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & twm &

Start the vncserver as root.

$ /sbin/service vncserver start

and that's it ! Use vncviewer to connect ot it

$ vncviewer host_ip:1

The 20 Most Sought-After IT Skills - InsideTech.com

The 20 Most Sought-After IT Skills

- from InsideTech.com

Just go through this link .. this has good info for technology crazy software engineers

http://insidetech.monster.com/training/articles/2356-the-20-most-sought-after-it-skills?page=1

Fastest Rising Pay for Noncertified IT skills	% change last 6 months	% change last year
Network security management	25.0%	37.0%
Wireless network management (LANs, GSM)	22.2%	22.2%
Business intelligence	20.0%	33.3%
PHP	20.0%	20.0%
SAP MDM (Master Data Management)	20.0%	20.0%
Oracle DB / 8i/9i/10g/11i	18.2%	30.0%
SAP ERP	18.0%	na
NetWeaver BI (SAP BW)	16.7%	16.7%
SAN/Storage Area Net Networking	14.3%	23.1%
Oracle Workflow	12.5%	na

Fastest Rising Pay for Certified IT skills	% change last 6 months	% change last year
Certified Information Security Manager (CISM)	27.3%	33.0%
GIAC Security Expert (GSE)	25.0%	34.5%
Planet3 Certified Wireless Network Administrator (CWNA)	20.0%	20.0%
IT Certified Architect (ITCA/OpenGroup)	20.0%	20.0%
SAS Certified Advanced Programmer	14.3%	14.3%
Planet3 Certified Wireless Analysis Professional (CWAP)	14.3%	14.3%
Cisco Certified Network Professional (CCNP)	14.3%	14.3%
Planet3 Certified Wireless Security Prefessional (CWSP)	12.5%	12.5%
Brocade Certified SAN Manager (BCSM)	10.0%	10.0%
Citrix Certified Integration Architect (CCIA)	10.0%	10.0%

Shift to the Networking category and you’ll find the following list of top-paying certifications:

• Cisco Certified Inernetwork Expert (CCIE)
• EMC Proven Professional Technology Architect – Expert
• Brocade Certified SAN Manager (BCSM)
• Cisco Certified Systems Instructor (CCSI)
• Cisco Certified Voice Professional (CCVP)
• SNIA Certified Storage Networking Expert
• Cisco IP Telephony Operations Specialist
• EMC Proven Professional Implementation Engineer – Expert
• SNIA Certified Architect
• Avaya Certified Expert
• Cisco Certified Internetwork Professional (CCIP)

Trace where you got email from

Check out this visual implementation of traceroute. This works good to find out from which location you got email from. Click at this link -> http://www.yougetsignal.com/tools/visual-tracert

All you need to do is type the IP address in very first Received:from field from you email message header. in MS Outlook, you can right-click the message and select "Message Options", read the internet header where you can find all hops which this message took to reach you.

After putting the IP simply click 'Host Trace'

Remote Address
Use Current IP

new ethernet standard for HD transmission

HDBaseT - New ethernet standard that aims to be the future of connectivity for our digital devices. Have a look at http://www.hdbaset.org

Useful websites for networkers

Bringing together the best in technical info, ideas and coverage of important IT trends

that help technology professionals build their knowledge and shape the future:

www.enterprisenetworkingplanet.com

www.instantmessagingplanet.com

www.opticallynetworked.com

www.practicallynetworked.com

www.voipplanet.com

www.wi-fiplanet.com

www.opennetworkstoday.com

for telco-networking webcasts - www.jupiterwebcasts.com/networking

Protocols.com - interesting site for networking/telecom geeks & newbies

While googling over a couple of VOIP protocols I somehow stopped at 

http://www.protocols.com

I really found this site interesting for networking newbies. 

At the same time found it quiet useful for network/ telecom domain geeks (software programmers, testers, network operation managers, solution architects etc etc )

The web site not only owns a descriptive repository for networking protocols, but also provide excellent search tool, Magazine references, references to popular telco sites ( for e.g. Light Reading ) and contains excellent technology white papers.

The protocol and networking topics have been categorised with a well seggregated menu based on underlying domain and technology related to networking and telecom protocols.

WORTH TAKING A LOOK!

Monthly BOJUG meet was good

Today, just came back from the BOJUG (Bangalore Open Java Users Group) meet which held at ThoughtWorks' Pathshaala.
As like always, it turned out to be a nice platform where java users can learn, present, collaborate and exchange knowledge. The following topics were presented and discussed:

1. Java FX..Its just the beginning by Vaibhav Choudhary
Shared knowledge of JavaFX with Demo. How to make timeline, reflection, constraint,easing, shapes, animation, Java AWT/Swing.
2. Beans Binding and Beans Validation by Sathish Kumar
Short discussion on Bean bindings.

3. Tomcat Internals by Sriram Narayanan
Sriram covered in brief various Tomcat configuration issues (server.xml, how to avoid having to deploy during development time, etc). He shared stuff like developing custom Tomcat components, and how the component assembly mechanism works.
I must say I became really amazed by the fact that what is known as Tomcat web server, is nothing but a collection of components that can be assembled and disassembled on the fly to put together custom environments.

For more details visit: http://blogs.sun.com/tirthankar/entry/bojug_meet_at_thoughtworks

Clean Green Nandi Hills Drive

Last Sunday, 24th Aug, I joined an ecological campaign to contribute in making Nandi Hills litter-free. Nandi hills is situated 60 km on outskirts of Bangalore and is a cool weekend day/night-out hangout for most of the Bangaloreans. Recently we have observed it being littered with plastics, polythene and glasses. We thought of making a 'buzz' by taking this step to start a clean-up drive.

Caught the bus with couple of friends from Cisco, Yahoo, Cognizant and other IT/BT folks and we were there by 7:00 in the morning. Initiative and sponsorship was taken by Yahoo! folks to arrange cleaning kit (gloves, plastic and cotton bags ) which really helped us in collecting 25 plastic bags and 4 bags of bottles.

All I could say that we have really M.A.D. ( made a difference ) at Nandi hills.

Govinda Online -> Worth playing

This is mast-playing online flash game on occasion of janmashtami.

http://www.dahihandi.com/

Do take a look and I bet u will enjoy!

Unnecessary evils of software services industry- The trio

Nice article and a must read. Think about it as it is a serious bottleneck for future innovations in India.

Why Wipro, Infosys and TCS are “The Axis of Evil” for Indian startup space
by Ashish Sinha
This article by Vishal echoes the true sentiments of an Indian entrepreneur- so share your opinion

Why Wipro, Infosys and TCS are “The Axis of Evil” for Indian start-up space ?
Yes you read it right I am calling this trio and their thousands of offshoots “The Axis of Evil” for Indian Software and Start-up space.....

Click here to read full article

Live Traffic Monitoring on Web

Nice service by Mapunity. A new web portal to get live information on traffic status, directions and auto fares for the following cities:

http://www.dtis.in/ for Delhi

http://www.btis.in/live.htm for Bangalore ( This includes live traffic cam )

http://www.ptis.in/ for Pune

http://www.htis.in/directions.htm for Hyderabad

http://www.chennaitraffic.in/ for Chennai

With the help of traffic police, they have launched a live traffic portal (Transport Information System) where you can find:

1. Optimal routes between any two places in the city
2. Auto-fares
3. Bus routes and stops, etc.

Why not Mumbai ??