[CentOS] One server not showing SSH port, the other is.
Joseph L. Casale
jcasale at activenetwerx.com
Mon Oct 11 23:44:04 UTC 2010
>However, when running nmap on them, one betrays the port that SSH is running on, and the other does not.
What does betray mean?
>I have shut down iptables on both machines and the behaviour remains this way. What could be the cause?
Public facing machines w/ iptables off?
>Specifically, how can I hide the port that SSH is running on?
So if you want it hidden, you want it not to accept connections from other machines?
#iptables -L
See what's allowed, then if you're not iptable savvy, install/run system-config-security.
Then do not permit connections to that port, unless you provide more info, like do you
Have internal trusted interfaces etc, you will be locked out.
>I'm sorry that I cannot provide the IP addresses, the owner of the servers doesn't want that! I also know how silly it is to do "stealth"
>ports but I'm not the one making the decision!
Probably good thing you haven't exposed a possibly bad config.
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