By default the Cisco ASAv has weak ssh config that many modern OS's do not support. ssh admin@10.1.10.56 Unable to negotiate with 10.1.10.56 port 22: no matching host key type found. Their offer: ssh-rsa This error is from the client side ssh client refusing to use any of the host key algorithms that are offered … Continue reading Fixing Weak SSH Ciphers On a Cisco ASAv
Cisco
Upgrade Cisco Catalyst WS-C4500X IOS: Step-by-Step Guide
In this post we will walk through the process of upgrading the IOS image on a Cisco Catalyst WS-C4500X switch
How to Reset Cisco Catalyst WS-C4500X to Factory Defaults
Need to reset your Cisco Catalyst 4500X back to the factory default settings. Follow this quick and easy guide
How to Connect to a Cisco Serial Port via Minicom
Prerequisites You will need the following. A RJ45 to RS232 (serial) roll-over cable. Shown below And a USB to RS232(DB9) adapter (below) Connect the RJ45 to the serial port on your Cisco switch. Connect the two Db9s and plug the usb port into your workstation. Your should see the adapter recognized as ttyUSB0. You can … Continue reading How to Connect to a Cisco Serial Port via Minicom
Cisco Catalyst: Configure a Trunk Port with a Native Vlan
This post will show you how to configure a trunk port with a native vlan. In this specific example I am configuring a range of ports, but the commands for an individual interface will be the same once you have entered the config for a particular port. First enter configuration mode s3560#conf terminal Now we … Continue reading Cisco Catalyst: Configure a Trunk Port with a Native Vlan
Cisco Catalyst: Reset/Clear Port Config
This blog is specific to the CIsco Catalyst 3560, but should work with other Catalyst switches. Reset Port Config to Default for One Port Use the command below to clear the configuration on a port. s3560(config)#default interface gigabitEthernet 0/3Interface GigabitEthernet0/3 set to default configuration Use the command below to verify that the running config for … Continue reading Cisco Catalyst: Reset/Clear Port Config
How to Reset Cisco Catalyst 3560 Back to Factory Defaults
Need to reset your Cisco Catalyst 3560 back to the factory default settings? Have you forgotten your password? Well you have come to the right place. Note that I am assuming that you have already established a console connection to the switch using a Cisco serial cable (rollover cable).