0
votes
1answer
1k views

Simple way to set up port knocking on Linux?

There are well known benefits of Port Knocking utilities when utilized in combination with firewall IP table modification. Port Knocking is best used to provide an additional layer of security over ...
0
votes
1answer
323 views

Does a webserver need to have outgoing port 80 blocked for security reasons?

At work, we've got Windows Server 2008 running. I've set up XAMPP, and a few websites - everything works perfectly. However, outgoing port 80 is blocked in the firewall for 'security' reasons. I was ...
4
votes
1answer
6k views

How can I disable these Windows-specific ports?

Let's see what ports are opened by which processes, taking those that are specific to Windows itself: C:\Windows\system32>netstat -anb Active Connections Proto Local Address Foreign ...
1
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3answers
1k views

closing open TCP ports under WinXP SP3

I must confess I have not been very security-conscious over the last few years, and I just did an NMAP scan of my computer to see how it was doing. The results amazed me. There were literally ...
5
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4answers
6k views

Safe to use high port numbers? (re: obscuring web services)

I have a small home network and I'm trying to balance the need for security versus convenience. The safest way to secure internal web servers is to only connect using VPNs but this seems overkill to ...