Java.Security.AccessControlException ERROR IN RMI PROGRAMMING

These errors are related to the security policy of java

Java has it's own security manager that takes care of all unprivileged connection accesses.

To resolve these kinds of errors ,you need to create a new security policy 

Eg. For allowing connections to ip 127.0.0.1 at pot 1099 and 1024

grant{
permission java.net.SocketPermission "localhost:1099", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "accept, resolve";
permission java.net.SocketPermission "localhost:1099-", "accept, resolve";
};

Save the content in a file called policy.txt and now run your server as

java -Djava.security.policy=policy.txt Server

The policy file must be saved in same folder where you have saved Server.java

INSERT SYSTEM DATE AND TIME IN NOTEPAD FILE

Insert System date and time in notepad

To insert date and time in notepad

1)Go to place within notepad file wherever you want to insert system date and time

2)press F5

ERROR IN CONNECTION while updating microsoft security essentials behind a proxy server

When u try to update the software, it tries to establish a connection to the specific website.But as you are behind the proxy the request didn't get the path to the web server and hence no connection is established.
SO before updating you must need to configure it to work through proxy rather than trying directly..


To do so :::


STEP 1: Open command prompt in administrator mode.
STEP 2: TYPE "netsh winhttp set proxy 123.212.121.121:3265"   and press enter


Replace 123.212.121.121:3265 with the address of your proxy server (same as you use in IE).


STEP 3: type exit and press enter.


You r done here now .JUST CLICK ON UPDATE now to get latest updates and enjoy the working....

Increase your internet speed (IE BROWSING SPEED)

We can easily speed up browsing speed of  Internet Explorer by making slight changes in cache memory for it.

We just need to increase the size of the Temporary Internet files cache on Internet Explorer.

To increase your speed,just follow these steps:

Open INTERNET EXPLORER

Click on the Tools and go to Internet Options.Open it by left click.

 

• Go to  'General tab' in  Internet Options dialogue box.

• Open Browsing history section
• Click on Settings tab to open Temporary Internet Files and History Settings dialog box.

• Click on the Automatically button in Check for newer versions of stored pages: section
• Set the amount of Disk space to use to at least 200MB
• Click OK.

NOTE:
The increased cache may slow down your computer.

Increase your net speed

You can easily increase the speed of network connection with some slight changes in Group Policy.

To do so, the steps you need to follow::::

• Open your RUN dialog box (windows+r).
• Type gpedit.msc and press Enter.
• IN Computer Configration,click Administrator Template tab.

• Double click Network.

• Double click QOS Packet Scheduler.

• Double click Limit Reversable bandwith.

By default it shows as Not Configured but actually it's enabled.

• Disable it by clicking at Radiobutton against Disable tab.

• Now press OK.

You are done here.

So enjoy your network accessibility with increased speed (only slight increment ) .

REMOVE UBUNTU(LINUX) FROM DUAL BOOT WINDOWS 7/XP.

If you directly format the drive containing ubuntu using windows disk management utility,your system will show error while boot-up and hangs up there as it cant find the path to boot configuration file.So what u need to do is to copy the configuration file at its specified position.So the steps u need to follow are...


STEP 1: Use Disk Management utility in Windows(type diskmgmt.msc in run prompt to invoke the utility) to delete the Ubuntu partitions.

STEP 2:Reboot your system using windows installation DVD or windows 7 boot-able pendrive

and choose Repair .

STEP 3: Choose command prompt on the resulting screen and run the following two commands:

bootrec /fixmbr

bootrec /fixboot

For XP  , run the recovery console from Windows XP CD and then type fixmbr in  command prompt.

KILL NON RESPONDING PROCESSES WITH THE HELP OF NOTEPAD/BATCH FILE

We can easily kill all non responding processes with the help of command prompt.
To do so,the  command u need to execute is


TASKKILL /F /FI "STATUS eq NOT RESPONDING"




To do same with notepad.........


1. Open NOTEPAD


2.Copy the code written below(in red) and paste it in opened notepad document...

TASKKILL /F /FI "STATUS eq NOT RESPONDING"


3.Save the file as nonreponding.bat


WHENEVER U NEED TO CLOSE NON RESPONDING PROCESSES ,JUST DOUBLE CLICK THIS FILE.

WINDOWS 7 RUN COMMAND:

A list of run commands to increase your working speed…..

RUN COMMANDs	Window/service started
hdwwiz.cpl	Device manager
appwiz.cpl	Add/remove program wizard
control admintools	Administrative Tools
azman.msc	Authorization manager
calc	Calculator
certmgr.msc	Certificate manager for current user
charmap	Character map
credwiz	Stored User Names and Passwords
control schedtasks	Task scheduler
compmgmt.msc	Component services
control folders	Folder properties wizard
control	Control panel.
cliconfg	SQL Client Configuration.
cleanmgr	Diskclean up wizard.
control desktop	Display personalisation wizard.
control fonts	Font properties
control keyboard	keyboard properties wizard.
control mouse	Mouse properties
control color	Window color and appearance.
control netconnection	Network adapter settings
control printers	Devices and Printers wizard
dcomcnfg	Component services
devmgmt.msc	Device manager
dfrgui	Disk fragmenter
diskmgmt.msc	Disk management wizard
Diskpart	Diskpartsevice.
dxdiag	Directx diagnostic tools
desk.cpl	display properties
Downloads	downloads folder
dpiscaling	dpi scaling tools(magnification wizard)
Dvdplay	Play dvd using windows player
eventvwr.msc	Event viewer
Explorer	Libraries folder
Eudcedit	private character editor
fsmgmt.msc	Shared folder management
firewall.cpl	Windows firewall manager
Fonts	Font properties
fxscover	Fax Cover Sheet Editor
gpedit.msc	Local group policy editor
intl.cpl	Regional settings.
iexpress	iExpresswizrd(to create /open self-extraction directive file)
inetcpl.cpl	internet properties
iexplore	internet explorer
ipconfig /all	Display Connection Configuration
ipconfig /displaydns	Display DNS Cache Contents
ipconfig /flushdns	Delete DNS Cache Contents
ipconfig /release	Release All Connections
ipconfig /renew	Renew All Connections
ipconfig /registerdns	Refreshes DHCP & Re-Registers DNS
ipconfig /showclassid	Display DHCP Class ID
ipconfig /setclassid	Modify DHCP Class ID
iscsicpl	isci initiator
joy.cpl	game controller
lusrmgr.msc	Local users and groups
msconfig	System Configuration Utility
msinfo32	System information
magnify	Magnifier
mmsys.cpl	Sound manager
main.cpl	mouse properties
msdt	Microsoft support diagnostic tool
Mspaint	Paint
Mblctr	Windows mobility center
Mspaint	Paint
Msra	windows remote assistance.
Mstsc	windows remote desktop connection
ncpa.cpl	Network adapter settings
Notepad	Notepad
odbcad32	ODBC databse administrator
osk	Onscreen keyboard
optionalfeatures	Windows feature wizard(turn optional features on/off)
perfmon.msc	Performance monitor
Perfmon	Performance monitor
powercfg.cpl	Power option
PrintBrmUix	Printer Migration
rsop.msc	Resultant set of policy wizard
regedit	Registry editor.
rekeywiz	Encryption file system wizard.
soundrecorder	Sound recorder
sndvol	Sound volume mixer
stikyNot	Stiky Note
sysedit	System Configuration Editor
snippingtool	Snipping tool
sysdm.cpl	System properties
services.msc	Services wizard
syskey	Windows System Security Tool
secpol.msc	Local security policy wizard
sigverif	File signature verification tool
timedate.cpl	Time and date updation wizard
tabcal	Digitizer calibration tool
telephon.cpl	Phone and Modem Options
TpmInit	Trusted Platform Module
taskmgr	Task manager
Utilman	Ease of access center
verifier	Driver verifier manager.
wmimgmt.msc	Windows Management Infrastructure
wscui.cpl	Action center
write	word pad