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[cobalt-security] Help with open ports
- Subject: [cobalt-security] Help with open ports
- From: "Rick" <rick@xxxxxxxxxxxx>
- Date: Sun, 7 Jul 2002 15:00:37 +0800
- List-id: Mailing list for users to address network security on Cobalt products. <cobalt-security.list.cobalt.com>
Hi,
When i did a check on my system via netstat -ap, i saw many unknown ports
open
[root chkrootkit-pre-0.36]# telnet localhost 5102
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
[root chkrootkit-pre-0.36]# telnet localhost 5101
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
[root chkrootkit-pre-0.36]# telnet localhost 5100
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML><HEAD>
<TITLE>401 Authorization Required</TITLE>
</HEAD><BODY>
<H1>Authorization Required</H1>
This server could not verify that you
are authorized to access the document
requested. Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.<P>
</BODY></HTML>
Connection closed by foreign host.
[root chkrootkit-pre-0.36]# telnet localhost 3000
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
[root chkrootkit-pre-0.36]#
I would like to know
a)What are these ports
b)What do they do
c)How do i close them.
Regards,
Rick