I need to install a wildcard certificate on Cisco PI for testing purpose, the following is the installation process. Environment Ubuntu 19.10 OpenSSL 1.1.1c Prime Infrastructure 3.10 Google Chrome 109.0.5414.120/Microsoft Edge 109.0.1518.70 FTP Server...
I recently installed Splunk 8.2.4 because older version of Splunk was affected by the Log4j vulnerability, the following is the installation process. Installation Download and install the dpkg package. Initial configuration Entering the following...
If you need to validate your QoS configuration, this article may be helpful to you. I will discuss here how to change the DSCP value in the simplest way, including Linux and Windows systems....
I have multiple remote Ubuntu servers for running Python scripts. Before that, I had two choices, using SSH to login remotely for development, or copying file to the remote servers after local development. But...
Crontab is a command used to execute tasks regularly in Linux/Unix operating systems. It is very suitable for repetitive tasks. I am using Ubuntu 20.04 LTS, but the crontab commands in most linux distributions...
vsFTPd is a lightweight FTP server. After installation, we can use filezilla to upload or download files. Installation Configuration We may encounter “550 permission denied” error, which impossible to upload files. Then restart vsftpd...
Invalid Message-Authenticator is a common error in AAA authentication. The most likely cause is that the shared secret configured on the server and client do not match. If you are sure that there is...
In this article I will discuss how to use Netconf API + Grafana + InfluxDB to monitor IOS-XE devices, such as Cisco Catalyst 9800 Series Wireless Controllers or Cisco Cloud Services Router 1000V Series....
Install Grafana Installation Start the server Verification Access to http://{ip address}:3000/, the default username and password is admin/admin. Install InfluxDB Installation Start the server Verification In the next article I will discuss how to...
I am learning DevNet recently, so I installed Yang Explorer on Ubuntu server. The following is the installation process. Install required packages Install Yang Explorer Configure IP address Run Yang Explorer in the background...
In the previous article I installed Ansible on Ubuntu, in this article I will discuss how to use Ansible. There are two ways for Ansible to perform tasks, ad-hoc and playbook. Here I will...
The installation environment is Ubuntu 19.10. Upgrade packages Install Ansible Verification ansible.cfg: This is the ansible configuration file.hosts: The hosts file includes the device information( IP address, etc.). Documentation Installing Ansible on Ubuntu https://docs.ansible.com/ansible/latest/installation_guide/intro_installation.html#installing-ansible-on-ubuntu
I installed new Ubuntu 19.10 server and realized that I need to use netplan to configure the network. The following is my configuration. Configure the IP address and DNS Configure proxy Save configuration We...
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