Configure Samba Server

opent terminal & create simple linux user using,

adduser username


smbpasswd -a username

after creating the password for that user type below command to enable that samba user,

smbpasswd -e username

now, create the directory which you want to share

now open samba configuration file from /etc/samba/smb.conf

and add the lines as below :

[directory name]

             path = /path /to /directory
             writeable = yes
;            browseable = yes
             valid users = username
             create mask = 0755 or 755

save file and exit

after doing this change the owner of that directory and restart the service of samba.

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Install LAMP Server on CentOS

First check httpd service is running or not

           /etc/init.d/httpd status


if its running, its ok else need to start

          /etc/init.d/httpd start


after starting httpd(apache) need to install mysql server

          yum install mysql-server

Now you need to start mysql daemon
         
          /etc/init.d/mysqld start

Now, log in to the mysql using
         
          mysql -u root -p
by default mysql root user doesn't have any password, when it asks for password just press enter and you will be logged in to the database.

if you want to create a password for root user,

UPDATE mysql.user SET Password = PASSWORD('password') WHERE     User = 'username';

FLUSH PRIVILEGES;

after installing mysql-server you need to install php,
for installing php need to download some RPM files which contains additional YUM repository definitions.

 (1) wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm
 (2) wget http://dl.fedoraproject.org/pub/epel/5/x86_64/epel-release- 5-4.noarch.rpm

Now, open the file remi.repo
      vi /etc/yum.repos.d/remi.repo

find the enabled option and set it to 1 and save it.

Now run command

yum install php php-cli php-gd php-mysql php-mbstring  php-mysql

now you're  done.

restart the daemon of httpd and check the version of php.

/etc/init.d/httpd restart
php -v or php --version





 

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Enable Root User for FTP

To access FTP using root user just need to follow three simple steps and its done.

(1) go to /etc/vsftpd directory
(2) remove root from user_list file
(3) remove root from ftpuser file

now restart the service of ftp and its done.

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Configure Chat Server on Linux

First you need to install MySQL & Apache

yum install mysql-server
yum install httpd

check the status of the services of MySQL & httpd if its not started,

/etc/init.d/mysqld start
/etc/init.d/httpd start

after installing MySQL & Apache you need to download Chat server application, which you can download from here : Download Chat Server Software

after downloading install this application.

rpm -uvh packagename.rpm

this will install the application on your machine.
Now you need to open two ports which are 9090 & 9091.

Now you need to configure your chat server using your browser with the url : "localhost:9090".

Follow the instructions and go ahead with the configuration.

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Create Own Command in Linux

write

#!/bin/bash

after writing above line write your script and save it and give any name,
give the permission of execute.

now copy your script in /bin directory or /usr/bin directory.

now your are done. open the terminal and type command, name you have given to your script.

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Remote ROOT access to MySQL

login to mysql

mysql -u username -p password

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'passwd';

now exit from mysql and restart the service of mysql.

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Mysql Database Import/Export Command Line

Export mysql database

          mysql -u username -p database name > filename.sql


Import mysql database

          mysql -u username -p database name < filename.sql


Export all databases from remote server to local machine

          mysqldump -u username -p -h hostname --all-databases > filename.sql

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