Clean memory said...

Good Information regarding RAM,HDD, UPS and AVR. But one thing which always pinches into my mind is, what exactly this "BSOD". Is that a Bug or else a clean memory idea. I would really be thankful to you if you send me a snap of it or else get that posted on to your website. Thank you in advance,

As on my experiences of being a technician for almost more than a year, BSOD is not a bug nor a clean memory. This is refer to an area within the RAM or HDD which is damaged(i dont know what is the exact term) or a faulty driver, meaning its an issue in hardware and software. This is usually happen upon loading system files. Initial files are loaded first into memory and when those files are not loaded then the BSOD will appear.

You should consider also the cleanliness of your memory bank and memory module. They should be free from dust to prevent lost connection. Use air compressor and lighter fluid as cleaning material.

http://bsod.org/
http://www.pcstats.com/articleview.cfm?articleID=1647

Limited or no connectivity!

On Windows environment, this means that you are not connected in the internet or other network resources. This issue has many causes of why it is happen. Here's the following reasons:

1. On wired and wireless network your Dynamic Host Configuration Protocol(DHCP) is down, this could be your ..
a. Internet Service Provider(ISP)
b. Router
c. DHCP Server - could also be a proxy server

2. Using of incorrect Wireless Equivalent Privacy(WEP) key or absence of it

3. IP Address misconfiguration or corrupted TCP/IP

4. Faulty wiring or wrong cable termination

5. Faulty Network Interface Card(NIC)

To get rid on this issue, check the status of your connection by doing the following solutions:
a. Check your IP configuration, if using a static DHCP be sure that there is no conflicts on your settings. If you are using a static IP, check the following;

*IP Address
*Gateway
*DNS or Proxy

To check it, open your terminal or command prompt and type this...

ipconfig /all

This will list down all the configurations in your NIC adapter.
When there's no IP supplied by your DHCP server then try this command..

ipconfig /renew

If still there is a problem, try to ping your DHCP server or your Default Gateway or any workstation within your LAN.

ping IP Address (ex. ping 192.168.1.1 or ping ictpro.asu.edu.ph)

Still unsolved? Check the DHCP configuration on your server(Proxy), Router configuration, and your ISP configuration.

b. Check your hardware
*Wire or Cable - termination(e.g straight through, crossover, rollover etc.)
- when checking the cable, use other working cable to check if the problem is the cable
*NIC or LAN Card
*Switch or Hub
*Router
*Bridge
*Other devices you are using

Note! Replacing(hardware) with the working one when troubleshooting is the best way in finding trouble.

How to connect on remote computer

SSH(Secure Shell) and TELNET are the most commonly used tools in remote connection. The only difference between them is the security they possessed. SSH uses encryption in order to avoid eavesdropping, connection hijacking, and other attacks doing by hackers. Other tools are RLOGIN, VNC, and FTP.

Users of TELNET, RLOGIN, VNC, and FTP should not rely on these tools because during connection their password is transmitted across the Internet unencrypted. Through the use of sniffing tools, hackers could easily sniff you.

How to install Cinelerra

1. First thing you have to do is to edit the source.list. Open the terminal and enter the following commands.

deb http://giss.tv/~vale/ubuntu32 ./
deb-src http://giss.tv/~vale/ubuntu32 ./

These are for 32-bit users, and for 64-bit is,

deb http://giss.tv/~vale/ubuntu64 ./

2. Update your source.list by typing this command into your terminal.

sudo apt-get update

3. Now that your source.list is up-to-date it's time to install the cinelerra now.

sudo apt-get install cinelerra

4. The next thing you have to do is to edit the configuration in order to modify it's memory allocation.

sudo vim /etc/sysctl.conf

then, add this syntax in the last part of the configuration file

kernel/shmmax=0×7fffffff

5. To avoid restarting enter this command in your terminal and press Enter.

sudo sysctl -p

Then run Cinelerra now. If you encountered some error as shown below saying that......then maybe there is a problem on your sysctl.config.

WARNING! Cinelerra is running in 0x2000000, which is have a very low memory.

As a solution, open your terminal and paste this command and press enter.

echo "0x7fffffff" > /proc/sys/kernel/shmmax


When running cinelerra and you've encountered a problem like this...

cinelerra: error while loading shared libraries: libGL.so.1.2: cannot open shared object file: No such file or directory

Try to run this command to fix it.

sudo ln -s /usr/lib/libGL.so.1 /usr/lib/libGL.so.1.2

How to partition hard drive on Ubuntu

Gparted is a good utility in partitioning hard drive on most Linux distros. This is akin to Disk Management of Windows. And you can format your hard drive in any file system you wanted to. To install it via terminal, use apt-get or aptitude. The syntax are "sudo apt-get install gparted" or "sudo aptitude install gparted". Installation would take a couple of minutes.

To run gparted just type "sudo gparted" and press Enter.

How to mount FAT & NTFS file system on UBUNTU (Gutsy)

Mounting windows file systems on Ubuntu is very simple task to do. First, open your terminal and execute as root. To do this follow the below commands.

1. su - (this if you're not going to use sudo command)

You will be prompted for your password. Just enter your root password.

2. Go to /media and create a directory for your device. Execute this command

cd /media
sudo mkdir "your directory name" (ex. sudo mkdir usb)

3. Then it's time to mount your device. Be sure that you know its device node(sdc, sdb, sda are the examples of this).

sudo mount -t "type of file system"-3g /dev/"device node" /media/"directory name you've been created"

ex. sudo mount -t ntfs /dev/sdb1 /media/harddisk1
sudo mount -t vfat /dev/sdb2 /media/harddisk2

Just provide your root password if asked.

NOTE! 3g is only applicable in ntfs file system.

That's all!

How to run Turbo C on Ubuntu

In order to run Turbo C on Linux. You'll need to install a third party programs such as Dosemu, DosBox, Wine, Crossover and other emulators that could interpret windows-based application.
In my part I'm using Dosemu. To install Dosemu just type this command in your terminal "sudo apt-get install dosemu" , then download the latest version of Turbo C compiler. Save it on your home directory. After downloading open your terminal and run Dosemu by typing this command "sudo dosemu". In your DOS window where Drive C: is your default drive type this command "cd d:(where D: is your /home directory)" and locate the TC folder you've downloaded. After getting into TC directory just type "TC" and the TCC window will appear. And,

Done!

How to Install VMWare Server on Ubuntu 7.10 (Gutsy)

Installation

To install VMWare on your machine you need to work on your terminal. And run the following commands.

1. sudo apt-get install build-essential linux-headers-`uname -r`

(packages for VMWare)

2. sudo apt-get install xinetd

(xinetd performs the same function as inetd: it starts programs that
provide Internet services)

3. Create a directory

sudo mkdir vmware
cd vmware

then,

4. Download VMWare Server

(to those who have a poor bandwidth i advise you to use download manager; to those who have a good bandwidth just download it via command line as written below)

wget http://download3.vmware.com/software/vmserver/VMware-server-1.0.4-56528.tar.gz

5. After downloading, extract the file.

sudo tar -vxzf VMware-server-1.0.4-56528.tar.gz

6. Go to vmware-server-distrib directory

cd vmware-server-distrib

7. Type this command to start the installation.

sudo ./vmware-install.pl

Just accept all the default settings.

How to install VirtualBox on Ubuntu 7.10 (Gutsy)

Installation

1. Install Virtual Box by typing the following command in your terminal

sudo aptitude install virtualbox-ose virtualbox-ose-modules

2. Add user to a virtual drive group

sudo usermod -G vboxusers -a "username"

to add user just type

sudo adduser "username"

3. Next is to change the permissions of your vboxdrv device

sudo chmod 666 /dev/vboxdrv

if there's some error, just type the following command.

cd /dev
sudo mkdir vboxdrv

then run this command again

sudo chmod 666 /dev/vboxdrv

Done!

Blue Screen of Death (BSOD)

Blue Screen of Death (relatively known as BSOD) is a bottleneck problem to all computer users. Why it is happen? And, what are the causes of this? Well, there's a lot of factors for this issue. As the ff;

1. Hardware
a. RAM (Random Access Memory)
If we are using a defective memory, expect that BSOD will on your way. As a remedy for this,try to scratch the terminal of your memory with pencil eraser; clean the memory bank by scrubbing with a clean toothbrush or paint brush. Also, try to apply a minimal heat to all the circuits in the memory module just like what CP technicians did to a cellphone's circuit board. I suggested these because i tried these and solved my problem.

b. HDD (Hard Disk Drive)
The same concept as in RAM. If your HDD has a bad sectors or unstable system files due to scaterred viruses this would led to BSOD. To avoid bad sector always protect our computers through;
> proper shutdown
> free from viruses, spywares and etc.
> stable power supply
> earthed AC outlet

Always use UPS (Uninterruptible Power Supply) and AVR (Automatic Voltage Regulator) to protect your system against electrical surges and fluctuation. Without these devices your system is at risk.

Use HDD regenerator or other related utilities to regenerate your HDD and fix its bad sector.

Also consider if you installed new hardware. Hardware incompatability may cause BSOD. Try to check hardware compatability list (HCL).

2. Software
Upon OS installation be sure that all packages needed by the unit to run were successfully installed. Else, this might develop problems later. BSOD occur if there's a missing file needed by the system that can't be access. To solve this, just reinstall the program and be sure that all the packages will be copied to your HDD.

Also consider if you installed hardware driver. Faulty driver may cause system to crash. Also perform restore point before doing anything in your system.

Also, check the IRQ (interrupts) settings for conflicts. Incorrect IRQ settings could cause system malfunction.

Manual removal of SCVHOST.exe and HINHEM.scr

STEP 1. Download Restrictions Removal Tool V3.0
This is a good tool to enable Task Manager, Folder Options, Command Prompt, and Regedit that has been disabled by SCVHOST.exe.

STEP 2. Run the RRT tool and enable the restricted features of your system. Then, try to open Task Manager and find scvhost.exe running in the processes. Usually two to three scvhost running in the processes. Terminate them all and proceed to STEP 5. But, if the Task Manager suddenly disappeared, just proceed to STEP 3.

(Be patient in working with Task Manager....scvhost disabled it after several seconds...so you'll need to find quickly the scvhost in the processes and terminate them. Try also to find SCCVIHOST in the processes if there is terminate them also.)

STEP 3. If there's nothing happen, go to system32 and find autorun.inf and delete it. Then restart your computer. This is to avoid the SCVHOST.exe to run after you reboot your system.

STEP 4. Do the STEP 2 again.

STEP 5. Go to Windows folder and find SCVHOST.exe and HINHEM.scr and then delete it.

STEP 6. Next, open the system32 folder and find the SCVHOST folder and then delete it. Also find SCCVIHOST, BLASTCLNNN folders and BLASTCLN.exe, if there is, delete them.

STEP 6. Open the REGEDIT ( type REGEDIT in the textbox and hit . When the REGEDIT window appeared, press F3 then type the SCVHOST in the textbox and press Enter. Delete the file you found....press F3 again and again and delete all the searched file until it will gone.

STEP 7. Do the STEP 6, but this time we will be looking for HINHEM.

NOTE! Use shift+del instead of del to ensure that they are deleted permanently. Use the batch file in the below article before doing step 1. This could help you a lot.

Restart............

DONE!

Related Links!
New Folder.exe Remover

Removing SCVHOST.exe and other viruses through batch file

This is a sample program that i'd done to remove SCVHOST.exe, HINHEM.scr, IMGKULOT.* etc in the system. To use this, copy the codes below and paste in NOTEPAD. Then, save it in .bat extension. To run, just double click it. But this procedure doesnt work at all. Just try.



@echoo off
cd windows
cd windows\system32
cd recycler

C:
attrib scvhost -s -h -r -a
attrib imgkulot.* -s -h -r -a
attrib hinhem.src -s -h- r -a
attrib autorun.inf -s -h -r -a
attrib msvcr71.dll -s -h -r -a
attrib sccvihost.* -s -h -r -a
attrib blastclnnn -s -h -r -a
del scvhost -s -h -r -a
del autorun.inf -s -h -r -a
del imgkulot.* -s -h -r -a
del hinhem.src -s -h -r -a
del msvcr71.dll -s -h -r -a
del sccvihost.* -s -h -r -a
del blastclnnn -s -h -r -a
cd\

D:
attrib *.exe -s -h -r -a
attrib imgkulot.* -s -h -r -a
attrib autorun.inf -s -h -r -a
attrib hinhem.src -s -h -r -a
attrib msvcr71.dll -s -h -r -a
attrib sccvihost.* -s -h -r -a
del *.exe -s -h -r -a
del autorun.inf -s -h -r -a
del imgkulot.* -s -h -r -a
del hinhem.src -s -h -r -a
del msvcr71.dll -s -h -r -a
del sccvihost.* -s -h -r -a
cd\

exit

RESTART!

If you have more than 2 disk drive attached, include them, just copy the codes same as in drive C: or D: