bLa©k souL of a coMputer

Last week was the slowest internet connection i have ever had at my work place. Seems there was some intermitance in the network.

After days of thinking how to solve the problem. Finally the issue was a hub connected to a switch & the hub got a looping connection..WTF..such a tiny winny problem causing such a havoc around the campus. All users kept asking why internet are so damn slow…bla..bla..bla..

Basics steps that you need to do is :

• block IPs that are caught have a virus or worm.
• check all network port and make sure that there are no looping.

Thats all from a beginner=)

Add the Copy To and Move To function to the Windows Explorer right-click menu starts with finding the key in the Windows Registry file. (Please backup your registry before doing this)

Before..

1. Start Regedit by navigating Start > Run and type regedit in the dialog box.

2. Find this key in the Registry file:
HKEY_CLASSES_ROOT\AllFilesystemObjects\shellex\ContextMenuHandlers

*The Send To key is already there.

3.     Right-click on the ContextMenuHandlersfolder and select New > Key to add a new key.

4.     Give it the name Copy To and then double-click the (Default) value of the new key’s right-hand pane.

5.  Insert new data with below value:

{C2FBB630-2971-11D1-A18C-00C04FD75D13}

6.     Right-click on the ContextMenuHandlersfolder and select New | Key to add a new key.

7.     Give it the name Move To and then double-click the (Default) value of the new key’s right-hand pane.

8.  Insert new data with below value:

{C2FBB631-2971-11D1-A18C-00C04FD75D13}

9.     Click OK and close Regedit.

After..

Just like a Windows or Linux operating system, the Cisco IOS has its own list of commands to manipulate files, very similar to DOS/Windows commands. These files could be your IOS router operating system, configuration file, or other type of IOS file. Knowing these file commands is a critical requirement for any Cisco admin.

Let’s look at 10 Cisco IOS file management commands you must know.

#1 dir

This shows a directory list of files on a filesystem. To see the options, type dir ?

Router#dir ?

/all             List all files

/recursive       List files recursively

all-filesystems  List files on all filesystems

archive:         Directory or file name

cns:             Directory or file name

flash:           Directory or file name

null:            Directory or file name

nvram:           Directory or file name

system:          Directory or file name

tar:             Directory or file name

tmpsys:          Directory or file name

xmodem:          Directory or file name

ymodem:          Directory or file name

<cr>

Router#

You can think of each of these filesystems almost like disk drives in DOS, where you have to put a colon after the name. So, the nvram is called nvram:. The default is to show a directory of the router’s flash as your default current directory is flash:

Router# dir

Directory of flash:/

2  -rwx    18929780  Aug 29 2006 15:49:57 +00:00  c870-advipservicesk9-mz.124-15.T5.bin

3  -rwx        2143  Aug 29 2006 16:42:14 +00:00  running-config

23482368 bytes total (4544512 bytes free)

Router#

Every router will have at least flash memory and nvram (non-volatile random access memory).

#2 cd

Change directory: Use cd to change your current directory to a different device or subdirectory on that device. In the following, when I change my directory to the nvram: filesystem and do a dir, I get a list of nvram. I could also cd to a subdirectory after I have created a directory with mkdir.

Router#cd nvram:

Router#dir

Directory of nvram:/

126  -rw-        2143                    <no date>  startup-config

127  —-           5                    <no date>  private-config

128  -rw-        2143                    <no date>  underlying-config

1  —-          49                    <no date>  persistent-data

2  -rw-           0                    <no date>  ifIndex-table

131072 bytes total (116584 bytes free)

Router#

#3 copy

This is used to copy the IOS or a config file from and to somewhere. You would use this to copy the router’s configuration off the router to a TFTP server or just make a local backup of it on the router. You would also use the copy command to upgrade the router with a new IOS from a TFTP server. Read more »

Fed up after being attack by worm, virus, trojan or malware?!..Fed up formatting you PC after being attack?! Cannot go into safemode instead being encountered by blue screen of death?!..I have got the solution ladies & gentlemen..

All you need is a blank CD, a CD burner and of course the internet. With these you can solve problem mention above without getting worried formatting you PC. I almost admit losing to those worm, virus, trojan or malware but in the nick of time i’ve found the solution.

Read more »

Which are those above are really irritates you when cleaning it from you PC/lapTop especially those who are using Windows. I hate worm cause although i have already clean it up, still it can manage to make copy of itself(these are worm specialty).

I have encountered worm which disable you regedit, task manager and things that are related to it. Some of the worm change your host file which are located in C:\WINDOWS\system32\drivers\etc\. It will block you from entering antivirus related websites. Also you cannot run the Windows in SafeMode as it will turn into bluescreen of death(that what we called it).

Let me tell you things that i have done. To enable you regedit, just click Start -> Run -> type REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

If still doesn’t work. Again go to Run and type gpedit.msc [Enter] . ->User Configuration -> Administrative Templates -> System. On your right-hand side, find Prevent Access to Registry Editing Tools. Double-click on it and change into Not Configure(recommended) or Disable. If still does not work open your CDROM and put unix-based OS CD and restart, boot from CD.

I found a software which are somewhat same as the task manager. But the differences is that the software only display process in command prompt. Old school yet effective. You can find the software here. All the instruction are there.

Hope that’s help. Have a nice day. If anyone have a suggestion just leave a comment, i really appreciate it.