Posts Under Category: SSH

Step 1

Navigate to the directory where the folder is located. Let’s say we want to create zip file of following folder.

So, we will navigate to /home/lophost directory.

cd /home/lophost

Step 2

Now run following command to create zip file of folder /home/lophost/folder_name

zip -r folder_name/


Step 1:

Login to your server via SSH as root user.

Step 2

Use below command to create / export a database.

mysqldump database_name > /backup/database_name.sql


database_name -> The name of database of which you want to create backup.
/backup/database_name.sql -> Location and file name of database backup file.

Yum command is one of the most used and important command on a Linux system. Here is how you can see the history of Yum command on a Linux server.
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If you want to know the version of yum installed on your Linux server, here is how you can find.
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The main user / administrator of a Linux server is root. Here is how you can create a new user on your CentOS server / VPS.

Login to your server as root as run following command to create a new user named ravi.

/usr/sbin/adduser ravi

Now set password for new user ravi

passwd ravi




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Let’s say we want to search for text lophost in file /var/log/messages
We can do this using command grep. Login to your server via SSH and run following command

grep lophost /var/log/messages

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On a Linux server you can rename a file using mv command.
Let say you want to rename file-one.txt to file-two.txt
Use following command for this.

mv file-one.txt file-two.txt

Another example. Suppose we want to rename ravi.txt to lophost.txt located in /var

mv /var/ravi.txt /var/lophost.txt

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You should open only limited ports for incoming and outgoing traffic on a server. You can use firewall like CSF firewall to open only trusted ports on a server.

If you want to check all open/listening ports that your server is using, run below command via SSH:

netstat -an


netstat -tulp


netstat -tulpn

The command will print a list of all open ports, protocol using the port, local address and foreign address (IP).

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Using below commands you can start, stop and restart MySQL from SSH.
Login to your server as root via SSH, and run following commands.

Start MySQL

service mysql start


/etc/init.d/mysql start

Stop MySQL

service mysql stop


/etc/init.d/mysql stop

Restart MySQL

service mysql restart


/etc/init.d/mysql restart

Status of MySQL

If you want to know the status of MySQL on your server, run below command.

service mysql status

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Use following command to know the hostname of your server.


You should run above command in SSH as root user.

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