Using Certbot to remove SSL Certificates
Check Certificates Delete Certificates
William King
Certbot issues SSL Certificates for Nginx on Ubuntu
Install certbot Check certbot version Using certbot to issue Certificates (DNS-01 challenge) Add a DNS TXT record to pass the challenge If pass the challenge Check Certificates Check Nginx settings Restart Nginx
Download Proxmox backup files
Using scp to download Proxmox backup files to local computer From local computer: PS: Proxmox backup files under “/var/lib/vz/dump/”.
Wifi on Old Mac with Ubuntu
Check Wifi adapter Broadcom Adapter BCM4360 Install packages Reboot, and Wifi is working.
Remove Proxmox Cluster
Change Cluster expected number Remove master node
Remove a Node from Proxmox Cluster
Check nodes Delete node Check if delete node success Remove node’s data Remove node SSH key Ref.
Reset OpenVAS / GVM admin password
Default admin password can be found when run gvm-check-setup. However, if you can not find it, you can run following to reset it:
Installing OpenVAS / GVM on Kali Linux
Ref. Update and upgrade Installation Enable postgre / redis Init. GVM Enable services Updating GVM feed Checking listen ports
Installing Wazuh Agent on macOS
Wazuh Dashboard Go to Agents management > Summary, and click on Deploy new agent. Run the following commands to download and install the agent: Start the agent
Manage Wazuh agents
The /var/ossec/bin/manage_agents tool can manage Wazuh agents using the command line interface (CLI). Run the following command on the Wazuh server ( /var/ossec/bin/ ):