“Database Revision Control” is a really useful feature when you are going to make important and/or many changes in the firewall policy, objects…
To make an analogy, DRC are like snapshots (as in the case of VMWare of a virtual machine) of the policies, objects, etc … everything that contains the database of the management server of Checkpoint is backed … Read more
This post explains how to generate self signed certificates with SAN – Subject Alternative Names using openssl. It is a common but not very funny task, only a minute is needed when using this method.
The example below generates a certificate with two SubAltNames: mydomain.com and www.mydomain.com
Create openssl configuration file
Create configuration file for openssh (In a Linux … Read more
Exim is a very flexible and common MTA (mail transfer agent) in Unix systems.
This posts shows the way to configure Exim as client to send authenticated and encrypted (TLS) emails through a smarthost.
Lets suppose the smarthost email server is listening on port 587 for secure outgoing SMTP…
Configure exim to use the smarthost
To configure exim In … Read more
For certain application, a job partner asked me to send him certain certificate with private key in PEM format. Normally I’m using PFX format, but with a little help of the openssl toolkit converting PFX to PEM is quite easy.
openssl for windows can be downloaded here: http://gnuwin32.sourceforge.net/packages/openssl.htm
After extracting the contents, inside the bin subfolder the openssl … Read more