Send SNMP Traps from Nagios to Remote Management Host

How to Update Third-Party SSL Certificates on GitLab

Updating third-party SSL certificates on GitLab involves replacing the existing certificate files with the new ones and reconfiguring GitLab. Here’s how to do it 1. Obtain New SSL Certificates You can use my CSR Generator to generate a CSR and acquire the SSL certificate. – Acquire the updated SSL certificate and private key from your […]

Securing Asterisk IP-PBX with Fail2Ban

What is Fail2Ban? Any service that is exposed to the internet is susceptible to attacks from malicious parties. If your service requires authentication, illegitimate users and bots will attempt to break into your system by repeatedly trying to authenticate using different credentials. A common example of this is with SSH, which will be the subject […]

How To Save All Docker Images And Copy/Move To Another Host?

Follow the below steps to export all docker images and import them to another system. Step #1 Export or save all images to one tar file. docker save $(docker images –format ‘{{.Repository}}:{{.Tag}}’) -o allimages.tar Step #2 scp -i key.pem rocky@192.168.1.1:/tmp/allimages.tar . Step #3 Load all images to docker on new host. docker load -i allimages.tar