“ssh_exchange_identification connection closed by remote host” Error and Solution

"ssh_exchange_identification connection closed by remote host" Error and Solution

SSH protocol provides secure communication with remote systems in an easy way. When using the SSH protocol and tools to connect to the remote system there are different security checks. These checks may prevent or rejects the SSH connections. The ssh_exchange_identification connection closed by remote host error occurred when the remote system or SSH server … Read more

How To SSH Into Running Docker Container?

How To SSH Into Running Docker Container?

Docker is used to creating containers and run them isolated from the host. Docker containers are very similar to virtual machines where they provide similar services to VMs like SSH, HTTP, Telnet, etc. In this tutorial, we examine how to SSH into a running Docker Container in different ways like using the docker exec , … Read more

Scp From Remote To Local

Scp From Remote To Local

The scp command is used to copy files and directories over the network in a secure way. As a command files can be copied via the command-line interface. The scp name comes from Secure Copy . The scp command is provided by most of the Linux distributions can be used to copy from the remote … Read more

How To Follow Redirects with Curl?

How To Follow Redirects with Curl?

The HTTP protocol provides different attributes and behaviors where one of them is Redirection. HTTP redirect is used to redirect a request from a specific URL to another URL. The redirect can be applied temporarily or permanently. The curl is a popular command-line-based tool to make HTTP requests which also supports the HTTP redirect feature. … Read more

Linux curl Command Tutorial with Examples

Linux curl Command Tutorial with Examples

A curl command is a tool used to transfer data between different hosts. These hosts are generally called servers where different protocol types are supported by curl. The curl supports protocol types like FTP, FTPS, HTTP, HTTPS, IMAP, SCP, SFTP, SMB, TFTP, etc. Interestingly email protocols lşike IMAP, IMAPS, POP3, etc. are supported by the … Read more

What Is SSH (Secure Shell)?

SSH or Secure Shell is a network protocol used to connect remote systems in a secure way. The SSH provides easy access to the remote systems command-line interface. SSH is very popular between network devices, Linux systems in order to access their management command-line interfaces. SSH provides authentication and authorization features and asks for login … Read more

Linux tail Command Tutorial with Examples

Linux tail Command Tutorial with Examples

Linux provides the tail command in order to read specified files. The default behavior of the tail command is reading the specified files ends with the specified lines. By default, the tail command reads the last 10 lines of the specified files. tail Command Syntax The tail command has the following syntax where generally a … Read more

netstat Command Tutorial In Linux with Example

netstat Command Tutorial In Linux with Example

The netstat command is used to display network connections for network protocols like TCP and UDP. The netstat can display routing tables, network interfaces, network protocol statistics, open ports, etc. Both Linux distributions and Windows operating systems provide the netstat command. In this tutorial, we examine different usage examples for the netstat command. netstat Command … Read more

How To Set Proxy For wget Command?

How To Set Proxy For wget Command?

The wget command is a popular command used to download files via the command-line interface. Proxy is used as an intermediate host which redirects HTTP and HTTPS requests to the destination server. In some cases, we may require to set a proxy for the wget command. In this tutorial, we examine how to set a … Read more

How To Generate Random Number In Bash Linux?

How To Generate Random Number In Bash Linux?

Linux bash provides different ways to generate random numbers. Random numbers can be used for different cases like security, selection, generating random content, etc. Linux bash can be used to generate random numbers by using the operating system devices, commands, etc. Using the $RANDOM Environment Variable The bash shell provides the $RANDOM environment variable which … Read more