How to Use Port Knocking To Secure SSH Service in Linux
Port Knocking is a nifty technique of controlling access to a port by only allowing legitimate users access to the service running on a server. It works in such a way that when the
SSH
How to Install Mosh Shell as SSH Alternative on Linux
Mosh, which stands for Mobile Shell is a command-line application which is used for connecting to the server from a client computer, over the Internet. It can be used as SSH and contains more
How to Use Two-Factor Authentication with Ubuntu
Over time, the traditional username and password authentication has proven inadequate in providing robust security to applications and systems. Usernames and passwords can easily be cracked using a plethora of hacking tools, leaving your
Setup Passwordless SSH Login for Multiple Remote Servers Using Script
SSH Key-based authentication (also known as public-key authentication) allows for password-less authentication and it is a more secure and a much better solution than password authentication. One major advantage of SSH password-less login, let
Useful PuTTY Configuration Tips and Tricks
Putty is an open-source terminal emulator that supports several network protocols like Telnet, SSH, Rlogin, SCP, and Raw Socket. The initial version of putty is dated back to January 8, 1999, and designed for
How to Increase SSH Connection Timeout in Linux
SSH timeouts as a result of inactivity can be quite irritating. This usually compels you to reinitiate the connection and start all over again. Thankfully, you can easily increase the SSH timeout limit and
How to Secure and Harden OpenSSH Server
When it comes to accessing remote devices such as servers, routers, and switches, SSH protocol comes highly recommended given its ability to encrypt traffic and ward off anyone who might try to eavesdrop on
How to Install Fail2Ban to Protect SSH on CentOS/RHEL 8
Fail2ban is a free, open-source and widely used intrusion prevention tool that scans log files for IP addresses that show malicious signs such as too many password failures, and much more, and it bans
How to Setup SSH Passwordless Login in Debian 10
SSH (Secure Shell) is a popular and widely used tool for remote login and file transfers over insecure networks, that uses encryption to secure the connection between a client and a server. Read Also:
How to Fix “No route to host” SSH Error in Linux
SSH is the most secure means of connecting to Linux servers remotely. And one of the common errors encountered while using SSH is the “ssh: connect to host port 22: No route to host”.