Enable SSH in Cisco IOS Router

SSH or Secure Shell is basically a secured method of accessing and sending commands to your router’s CLI through a network connection; without having to plug a console cable directly. Unlike standard telnet that sends data in plain-text format, SSH uses encryption that will ensure confidentiality and integrity of the data. There are two versions of […]


Configure SSH Access in Cisco ASA

You can access Cisco ASA appliance using Command Line Interface (CLI) using either Telnet or SSH and for web-based graphical management using HTTPS (ASDM) management. Telnet uses TCP port 23 and is not secure. Secure Shell (SSH) on the other hand uses port 22 and is secure. SSH uses public key cryptography to authenticate remote […]


Block SSH Login Attack in Juniper SRX

In JunOS, the default port number for SSH protocol is 22. As of writing this article, Juniper recommended version for Junos OS is 11.4R5.5 for SRX100 to SRX 240 and SRX650 model. Up to now there is no functionality of Junos to change the default port number of SSH protocol. Since 22 is the only […]