Linux

If you have more than one server you manage and if you connect to multiple servers with ssh and run single command on multiple linux …

If you are using Linux and want to securely connect to servers without using a username password, you can create a ssh key and connect …

In this article, we will see how to create a user in Centos and how to grant root privileges to a user in Centos. How …

We can connect to database servers in Oracle Cloud environment or other linux servers using ssh private key. After creating a server or database deployment, …

We connect to all servers that we create in Oracle Cloud environment with ssh public and private key. When creating our database server or normal …

If you receive this error while sending mail, but you can send the mail, the reason you receive this error is because it tries to …

There are several methods for sending mail from linux.  For Example you can send email by using Exchange. To perform this you must grant relay …

Docker, which is becoming increasingly popular, is in the logic of virtualization. But unlike conventional known virtualization tools(Virtualbox, Vmvare ,kvm vb.. ), it does not …

pgFormatter can format a SQL file according to the options. It can also be used as a CGI. Also is simple to use. The basic …

When you search for different files while working, you can see the file named dead.letter. Why does dead.letter occur? The cause of dead.letter is to …