Nowadays Hardening Operating system is a must! There are a lot of tools that can help to do this. One of my favorites is CIS Hardened Images that do more than others. Other solutions and companies can help on this also like Qualys and finally Azure Security Center. But the recommendation is one part, but […]
SQL – last time this error occurred in my Azure Environment when I am using SoftEther VPN installed on the SQL server. When I moved it to the Linux Server it disappears. So this is confirmation that it is strictly connected with network connectivity, but I was not indicated what exactly the problem was. So […]
If you are running your EC2 machine in AWS a lot of Cloud functionality is dependent on the AWS EC2 stack named metadata. You can open the browser and check to open the page http://169.254.169.254/latest/dynamic/instance-identity/. If you see your data it means that the machine is properly configured as an EC2 instance, if not it […]
Nowadays day by day more people have inbound/outbound connections of about 1 GB and can reach this speed during connection to Cloud – 2,5 Gigabits per second. But if you build your VPN to Cloud you can reach this speed: So it is ten times slow… Just why, as far I remember from school IPSEC […]
Sometimes we need to check how fast our network connection is – with VPN without VPN. The most advanced tool is iperf – You can refer to it here (I used this tool to crash hyper-v cluster but usage is the same). Here is the official document from Microsoft on how to do it. But […]