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Stuck to configure a Firewall Allowing only Nessus ( TCP 8834)
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Topic: Stuck to configure a Firewall Allowing only Nessus ( TCP 8834) (Read 1308 times)
js_opdebeeck
Newbie
Posts: 2
Karma: 0
Stuck to configure a Firewall Allowing only Nessus ( TCP 8834)
«
on:
November 10, 2021, 09:45:52 pm »
Hello blue and red teams,
I'm new to OPNSense and I'm stuck to configure a rule to allow only destination port for Nessus ( TCP-8834), as many protocol, the source port is not fixed to a specific value so I need to put ANY .
My actions :
Protocol TCP
Src_port : Any
Dst_Port : Other ( 8834)
Unfortunatly, when I save OPN make a rule Src_Port ANY
Dst_Port Any
. ... not good at all. So, everything is open :-(
If I edit the rule, I have a DST_Port = ANY
I also tested with "Alias" Port, but it fails too.
Can you give me some advice ? Did I miss something ?
Js
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Last Edit: November 10, 2021, 09:47:32 pm by js_opdebeeck
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Patrick M. Hausen
Hero Member
Posts: 5243
Karma: 436
Re: Stuck to configure a Firewall Allowing only Nessus ( TCP 8834)
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Reply #1 on:
November 10, 2021, 10:10:52 pm »
You need "from: other", "to: other" in the destination port section and put 8834 in both fields. The "from" is not indicating that this means the source. There are separate source and destination port sections in that web form.
And both take a
port range
if desired. So for a single port you need "from: X", "to: X" with X the same for both fields.
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Deciso DEC750
People who think they know everything are a great annoyance to those of us who do.
(Isaac Asimov)
js_opdebeeck
Newbie
Posts: 2
Karma: 0
Re: Stuck to configure a Firewall Allowing only Nessus ( TCP 8834)
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Reply #2 on:
November 11, 2021, 01:50:32 pm »
Perfect
Thank you.
Js
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Stuck to configure a Firewall Allowing only Nessus ( TCP 8834)