Windows Forum
Hello,
I have a MS Proxy 2.0 and I need to find out which ports/protocols I can close before I give my users internet access. (I do have the Proxy's ports and protocol lists)
For example...RealAudio...I closed.;-)
Can somebody give me some advice WHY to close a certain PORT/PROTOCOL?
Kind regards,
by mfischer
There are security reasons to close some ports. 23 For instance is telnet, and can be a security issue. Business practices should be your guide. If some of your users NEED telnet to do their jobs then closing the port doesn't make any sense!
There are bandwidth issues to closing ports also, you made a good decision to close real's port. Bandwidth is a precious thing, and should be conserved whenever possible.
As far as protocols, you should close off any protocols that aren't activelybeing used. SNMP may be an example, if you're not using it close it because of known (and unknown) security issues that creep in.
by E.Eliveld
by E.Eliveld
These are the ports I have closed. I wonder if there are more...
Alphaworld 5670 TCP Outbound
Sub. connections:
80 TCP Outbound
3000-3050 UDP Inbound
3000-3050 TCP Outbound
7000-7999 TCP Outbound
7000-7999 UDP Inbound
AOL 5190 TCP Outbound
Archie 1525 UDP Outbound
Sub. connections:
0 UDP Inbound
Enliven 537 TCP Outbound
ICQ 4000 UDP Outbound
Sub. connections:
0 TCP Inbound
0 UDP Inbound
1025-5000 TCP Inbound
1025-5000 TCP Outbound
Net2Phone 6801 UDP Outbound
Sub. connections:
0 TCP Inbound
0 UDP Inbound
1025-5000 UDP Outbound
Net2Phone reg. 6500 TCP Outbound
RealAudio(7070) 7070 TCP Outbound
Sub. connections:
6770 UDP Outbound
6970-7170 UDP Inbound
RealAudio(7075) 7075 TCP Outbound
Sub. connections:
6770 UDP Outbound
6970-7170 UDP Inbound
VDOLIve 7000 TCP Outbound
Sub. connections:
0 UDP Inbound
VXtreme 12468 TCP Outbound
Sub. connections:
0 UDP Inbound
1025-5000 UDP Inbound
1025-5000 UDP Outbound
32768-65535 UDP Outbound
by E.Eliveld
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