- SHOULD I OPEN PORTS FOR STEAM UPDATE
- SHOULD I OPEN PORTS FOR STEAM FULL
- SHOULD I OPEN PORTS FOR STEAM PASSWORD
- SHOULD I OPEN PORTS FOR STEAM MAC
I don't think it's a defense by obscurity, but defense in depth: to attack my server, the attacker must first find the port. And I have a ssh honeypot on port 22, that will reply to any and every login attempt with a 'access denied' message. I have a server with ssh bound to a random high port. You will be targetted if the attacker is trying to get your server, not any server. Often times it is simply easier to just configure your firewall to only allow access to 22 from specific hosts, as opposed to the whole Internet.Īs others said, putting SSH on a port other than 22 will make more unlikely to be hit with a random scan. Also consider what you're trying to protect yourself against. Some of those disadvantages may not apply, but some certainly will. I have a few questions for you."īefore changing your port you need to take all of this into account so you know you're making the best decision. In any event, this can result in down-time for you or, at the least, a nerve racking call when you answer your phone and hear, "Hi, this is Bob from the Information Security Office.
SHOULD I OPEN PORTS FOR STEAM UPDATE
Sometimes it is resolved in 5 minutes after making a call to the administrator and being told it's legitimate, at which point I update documentation, other times it really is badness that gets taken care of. When performing a security assessment, or analyzing logs looking for security threats, if I see an SSH server running on a non-standard port (or an SSH server on a non-UNIX/Linux for that matter) I treat it as a potential backdoor and invoke the compromised system part of incident handling procedure.
SHOULD I OPEN PORTS FOR STEAM MAC
SHOULD I OPEN PORTS FOR STEAM PASSWORD
Then, once they have their list of IP addresses with port 22 open, they will start their password brute force to guess usernames/passwords or launch their exploit kit of choice and start testing known (at least to them) vulnerabilities on the target system. If these disaffected individuals want to find SSH servers they will start probing each IP address on port 22 (they may also add some common alternates such as 222 or 2222). This is the crux of the advice to change your default port.
SHOULD I OPEN PORTS FOR STEAM FULL
The Internet is a wild and scary place, full of malcontents whose motives range from curiosity all the way to criminal enterprise.