Be goof to your pc
Install Firefox 60 on Ubuntu
Download The Latest Version of Firefox 60 from their FTP using wget
For 32 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/60.0/linux-i686/en-US/firefox-60.0.tar.bz2
For 64 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/60.0/linux-x86_64/en-US/firefox-60.0.tar.bz2
Extract the tar package
tar -xjf firefox-60.0.tar.bz2
Move the Firefox folder to opt
Remove the Older version of Firefox if it's there
sudo rm -rf /opt/firefox59
sudo mv firefox /opt/firefox60
Create the Symbolic link for new Firefox as default
sudo mv /usr/bin/firefox /usr/bin/firefoxold
sudo ln -s /opt/firefox60/firefox-bin /usr/bin/firefox
For 32 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/60.0/linux-i686/en-US/firefox-60.0.tar.bz2
For 64 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/60.0/linux-x86_64/en-US/firefox-60.0.tar.bz2
Extract the tar package
tar -xjf firefox-60.0.tar.bz2
Move the Firefox folder to opt
Remove the Older version of Firefox if it's there
sudo rm -rf /opt/firefox59
sudo mv firefox /opt/firefox60
Create the Symbolic link for new Firefox as default
sudo mv /usr/bin/firefox /usr/bin/firefoxold
sudo ln -s /opt/firefox60/firefox-bin /usr/bin/firefox
RAID Explained
RAID stands for Redundant Array of Inexpensive (Independent) Disks.
On most situations you will be using one of the following four levels of RAIDs.
RAID 0
RAID 1
RAID 5
RAID 10 (also known as RAID 1+0)
This article explains the main difference between these raid levels along with an easy to understand diagram.
In all the diagrams mentioned below:
A, B, C, D, E and F – represents blocks
p1, p2, and p3 – represents parity
RAID LEVEL 0
Minimum 2 disks.
Excellent performance ( as blocks are striped ).
No redundancy ( no mirror, no parity ).
Don’t use this for any critical system.
RAID LEVEL 1
Minimum 2 disks.
Good performance ( no striping. no parity ).
Excellent redundancy ( as blocks are mirrored )
Minimum 3 disks.
Minimum 4 disks.
This is also called as “stripe of mirrors”
Excellent redundancy ( as blocks are mirrored )
Excellent performance ( as blocks are striped )
If you can afford the dollar, this is the BEST option for any mission critical applications (especially databases).
On most situations you will be using one of the following four levels of RAIDs.
RAID 0
RAID 1
RAID 5
RAID 10 (also known as RAID 1+0)
This article explains the main difference between these raid levels along with an easy to understand diagram.
In all the diagrams mentioned below:
A, B, C, D, E and F – represents blocks
p1, p2, and p3 – represents parity
RAID LEVEL 0
Minimum 2 disks.
Excellent performance ( as blocks are striped ).
No redundancy ( no mirror, no parity ).
Don’t use this for any critical system.
RAID LEVEL 1
Minimum 2 disks.
Good performance ( no striping. no parity ).
Excellent redundancy ( as blocks are mirrored )
RAID LEVEL 5
Minimum 3 disks.
Good performance ( as blocks are striped ).
Good redundancy ( distributed parity ).
Best cost effective option providing both performance and redundancy.
Use this for DB that is heavily read oriented. Write operations will be slow.
RAID LEVEL 10
This is also called as “stripe of mirrors”
Excellent redundancy ( as blocks are mirrored )
Excellent performance ( as blocks are striped )
If you can afford the dollar, this is the BEST option for any mission critical applications (especially databases).
Backup Server on an Ubuntu 12.04 with BackupPC
BackupPC is a backup solution that can be configured to back up remote Linux and Windows systems.
It can use a variety of different protocols and has a flexible scheduler to coordinate full and incremental backups.
BackupPC is a powerful, user-friendly way to automatically backup files from several servers to a central location. Backups are essential for any kind of production environment. Just as important is making sure that file restoration operations function correctly.
There are many backup tools available for Linux and Unix-like operating systems. Choose the solution that fits your needs the best. BackupPC is a great tool that should work well in many developers' environments.
BackupPC is available in Ubuntu's default repositories.
The software "pulls" the data from client machines,
so the actual program needs to be installed on the machine that will function as the backup server.
The files will be stored at:
Open a terminal and enter the following commands:
sudo apt-get update
sudo apt-get install backuppc
During the installation, you will be asked what kind of mail server configuration is needed. We can select the "Local only" option, because we will not be configuring internet-aware mail:
On the next page, we can leave the Sytem mail name as "localhost":
Select "apache2" to configure Apache for use with BackupPC:
type "Enter" to continue with the installation.
Changing the Password
BackupPC uses a system user called "backuppc" to perform its tasks.
In addition, it configures an Apache user, also called "backuppc", with a randomly generated password, which was given briefly during installation. We can change this password to something more meaningful by typing:
sudo htpasswd /etc/backuppc/htpasswd backuppc
You will be asked to give and confirm a new password.
Configure SSH Access to Client Computers
There are a few different ways that servers and clients can communicate to authenticate and transfer data. In this guide, we will be using the rsync protocol over SSH.
To make this work, we'll need to create an SSH key pair for our system BackupPC user (called "backuppc", as mentioned above), and then transfer the key to the client machines.
First, log into the BackupPC user with the following command:
sudo su - backuppc
You will probably be presented with only a minimal prompt, represented by the dollar sign ($).
Generate an SSH key pair by typing:
ssh-keygen
You will be asked a number of questions. Just type "Enter" through all of the prompts to accept the default values.
Transferring the SSH Public Key
You now have a private and public key on your backup server. You need to transfer the public key to the root user on each client machine you wish to access.
You can do that by typing:
ssh-copy-id root@client_ip_address
Type "yes" to accept the new server's identity, and then enter the root password of the remote machine. The key should then be transferred.
Check that your key was transferred correctly by typing:
ssh root@client_ip_address
You should be able to log in without having to type a password.
Get back to the BackupPC server by typing:
exit
Back out of the "backuppc" account by typing "exit" again:
exit
Access the Web Interface
The rest of the guide will be configured through BackupPC's web interface.
Open a browser and navigate to:
backuppc_server_ip_address/backuppc
You will be prompted for a username and password. The username is "backuppc" and the password is what you set with the htpasswd command earlier.
Set Up Client Configuration
On the left-hand side, click on the "Edit Hosts" link.
Configure Transfer Settings
Click on the "Xfer" tab on the top of the page. Under "XferMethod", select "rsync". Under "RsyncShareName", select the path you would like to back up.
You can leave it at "/" to back up the entire computer. You can also click "Add" to add additional areas to back up if you choose not to target the entire computer.
If you are backing up the entire computer, you'll need to add an "excludes" rule.
In the "BackupFilesExclude" segment, type "*" to match all shares. Then insert the values "/proc" and "/sys" to exclude these directories from back up.
The default backup schedule is:
Full backup
Every 7 days
Keep only newest copy
Incremental backup
Every day
Keep the six most recent backups
If you would like to change the interval, click on the "Schedule" tab on the top bar.
Run a Manual Backup
To run your first full backup manually, select you client from the "Hosts" drop-down menu in the upper-left corner.
You will be taken to a client summary page. Click "Start Full Backup" under the "User Actions" section.
You will confirm the action on the next page.
It can use a variety of different protocols and has a flexible scheduler to coordinate full and incremental backups.
BackupPC is a powerful, user-friendly way to automatically backup files from several servers to a central location. Backups are essential for any kind of production environment. Just as important is making sure that file restoration operations function correctly.
There are many backup tools available for Linux and Unix-like operating systems. Choose the solution that fits your needs the best. BackupPC is a great tool that should work well in many developers' environments.
BackupPC is available in Ubuntu's default repositories.
The software "pulls" the data from client machines,
so the actual program needs to be installed on the machine that will function as the backup server.
The files will be stored at:
/var/lib/backuppc/pc/ip_address_of_client/#_of_backup
Open a terminal and enter the following commands:
sudo apt-get update
sudo apt-get install backuppc
During the installation, you will be asked what kind of mail server configuration is needed. We can select the "Local only" option, because we will not be configuring internet-aware mail:
On the next page, we can leave the Sytem mail name as "localhost":
Select "apache2" to configure Apache for use with BackupPC:
type "Enter" to continue with the installation.
Changing the Password
BackupPC uses a system user called "backuppc" to perform its tasks.
In addition, it configures an Apache user, also called "backuppc", with a randomly generated password, which was given briefly during installation. We can change this password to something more meaningful by typing:
sudo htpasswd /etc/backuppc/htpasswd backuppc
You will be asked to give and confirm a new password.
Configure SSH Access to Client Computers
There are a few different ways that servers and clients can communicate to authenticate and transfer data. In this guide, we will be using the rsync protocol over SSH.
To make this work, we'll need to create an SSH key pair for our system BackupPC user (called "backuppc", as mentioned above), and then transfer the key to the client machines.
First, log into the BackupPC user with the following command:
sudo su - backuppc
You will probably be presented with only a minimal prompt, represented by the dollar sign ($).
Generate an SSH key pair by typing:
ssh-keygen
You will be asked a number of questions. Just type "Enter" through all of the prompts to accept the default values.
Transferring the SSH Public Key
You now have a private and public key on your backup server. You need to transfer the public key to the root user on each client machine you wish to access.
You can do that by typing:
ssh-copy-id root@client_ip_address
Type "yes" to accept the new server's identity, and then enter the root password of the remote machine. The key should then be transferred.
Check that your key was transferred correctly by typing:
ssh root@client_ip_address
You should be able to log in without having to type a password.
Get back to the BackupPC server by typing:
exit
Back out of the "backuppc" account by typing "exit" again:
exit
Access the Web Interface
The rest of the guide will be configured through BackupPC's web interface.
Open a browser and navigate to:
backuppc_server_ip_address/backuppc
You will be prompted for a username and password. The username is "backuppc" and the password is what you set with the htpasswd command earlier.
Set Up Client Configuration
On the left-hand side, click on the "Edit Hosts" link.
Click "Save" at the top of the page.
Click on the "Xfer" tab on the top of the page. Under "XferMethod", select "rsync". Under "RsyncShareName", select the path you would like to back up.
You can leave it at "/" to back up the entire computer. You can also click "Add" to add additional areas to back up if you choose not to target the entire computer.
If you are backing up the entire computer, you'll need to add an "excludes" rule.
In the "BackupFilesExclude" segment, type "*" to match all shares. Then insert the values "/proc" and "/sys" to exclude these directories from back up.
Configure Backup Schedule
The default backup schedule is:
Full backup
Every 7 days
Keep only newest copy
Incremental backup
Every day
Keep the six most recent backups
If you would like to change the interval, click on the "Schedule" tab on the top bar.
Note: You will notice that full backups have a value of "6.97" in "FullPeriod", and likewise, incremental backups have a value of "0.97" in the "IncrPeriod" field. These are values corresponding to 7 and 1 day respectively, since it accounts for the time to complete the backup as well.
You can modify the number of backups that the system maintains. You can also specify times when no backup should be performed by setting up "blackouts" where no backup can begin.
In this guide, we will stick with the default values.
Remember to click "Save" if you make any changes.
You can modify the number of backups that the system maintains. You can also specify times when no backup should be performed by setting up "blackouts" where no backup can begin.
In this guide, we will stick with the default values.
Remember to click "Save" if you make any changes.
Run a Manual Backup
To run your first full backup manually, select you client from the "Hosts" drop-down menu in the upper-left corner.
You will be taken to a client summary page. Click "Start Full Backup" under the "User Actions" section.
Your backup should complete shortly, depending on the size of the droplets.
if you have problem in back up with windows pc
please configure smb in your ubuntu pc
if you want more help i will write it in here as i do
Mfc100u.dll errors
Mfc100u.dll errors are caused by situations that lead to the removal or corruption of the mfc100u DLL file,
an important part of the Visual C++ runtime library supplied by Microsoft.
There are several different ways that mfc100u.dll errors can show up on your computer.
Here are some of the more common ways that you might see mfc100u.dll errors:
Mfc100u.dll Not Found
This application failed to start because mfc100u.dll was not found. Re-installing the application may fix this problem.
Cannot find [PATH]\mfc100u.dll
The file mfc100u.dll is missing.
Cannot start [APPLICATION]. A required component is missing: mfc100u.dll. Please install [APPLICATION] again.
If you have 64bit Windows system, install
http://www.microsoft.com/download/en/confirmation.aspx?id=13523
If that does not fix the problem, install
http://www.microsoft.com/download/en/confirmation.aspx?id=8328
This should solve problem.
an important part of the Visual C++ runtime library supplied by Microsoft.
There are several different ways that mfc100u.dll errors can show up on your computer.
Here are some of the more common ways that you might see mfc100u.dll errors:
Mfc100u.dll Not Found
This application failed to start because mfc100u.dll was not found. Re-installing the application may fix this problem.
Cannot find [PATH]\mfc100u.dll
The file mfc100u.dll is missing.
Cannot start [APPLICATION]. A required component is missing: mfc100u.dll. Please install [APPLICATION] again.
If you have 64bit Windows system, install
http://www.microsoft.com/download/en/confirmation.aspx?id=13523
If that does not fix the problem, install
http://www.microsoft.com/download/en/confirmation.aspx?id=8328
This should solve problem.
Installing TeamViewer on Ubuntu
Download the TeamViewer from their website through your web browser and you can install it via GUI.
or use the CLI.
Be the root Like the boss as firt.
sudo su
Get it here
https://teamviewer.en.uptodown.com/ubuntu
Navigate to the directory
where it is downloaded
and Install the package.
dpkg -i teamviewer-10-0-36281-multi-ubu.deb
if there any problm during instalation
apt-get install -f
or use the CLI.
Be the root Like the boss as firt.
sudo su
Get it here
https://teamviewer.en.uptodown.com/ubuntu
Navigate to the directory
where it is downloaded
and Install the package.
dpkg -i teamviewer-10-0-36281-multi-ubu.deb
if there any problm during instalation
apt-get install -f
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