Why does SSH come listening on Port 22?
Because by default, SSH comes listening on port 22, which is widely known among attackers and security tools/port scanners that launch brute force attacks against it. While this is considered security by obscurity, it helps eliminating lots of noise on port 22.
What can be done about a file upload vulnerability?
Exploited by a hacker, a file upload vulnerability can open up a site to malware, unauthorized server access, attacks to website visitors, the hosting of illegal files, and much more. File upload attacks can be grouped into 4 categories.
Which is the best way to upload secure files?
Using an off-the-shelf file upload system can be a fast way to achieve highly secure file uploads with minimal effort. If there are no special storage requirements or legacy systems to migrate, this option can be a great way for organizations to support file uploads by users.
What kind of attacks can you do with SSH?
This allows anyone to connect to port 22, and use the root user as default, and then launch a ton of brute force attacks against your public server IP. If you have password authentication enabled on your SSH service and your root password is weak, chances you are going to get hacked are pretty high.
What is the idle timeout value for SSH?
Idle timeout value allows terminating ssh sessions that are not actively used. This variable can be edited by altering the ClientAliveInterval value. In this case, we set 240 which equals to 4 minutes, once the timeout has been reached, the SSH session will be logged out automatically.
How to block the rest of the world with SSH?
Then add this at the end of the file: Replace 11.22.33.44 with your real public IP, or with your private LAN IP, you can choose either. This will help you to block the rest of the world, and allow only the specified IP addresses. 3. Filter the SSH port on your firewall
https://www.youtube.com/watch?v=OmrZQLzRS98