Robert Graham's website has some info on port 1024:
http://www.robertgraham.com/pubs/firewall-seen.html
quoted below -
"1024 ----- Many people ask the question what this port is used for. The
answer is that this is the first port number in the dynamic range of ports.
Many applications don't care what port they use for a network connection, so
they ask the operating system to assign the "next freely available port". In
point of fact, they as for port 0, but are assigned one starting with port
1024. This means the first application on your system that requests a
dynamic port will be assigned port 1024. You can test this fact by booting
your computer, then in one window open a Telnet session, and in another
window run "netstat -a". You will see that the Telnet application has been
assigned port 1024 for its end of the connection. As more applications
request more and more dynamic ports, the operating system will assign
increasingly higher port numbers. Again, you can watch this effect with
'netstat' as your browse the Internet with your web browser, as each
web-page requires a new connection. "
not sure about 587...
Adrian.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Bernhard Lüder
Sent: Wednesday, 28 February 2001 12:29 PM
To:
Subject: RE: [SLUG] Security Breach
Hi,
In this context. What is port 587 and 1024. I couldn't find these in
/etc/services
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:1024 0.0.0.0:* LISTEN
Bernhard Lüder
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