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Beginner

Open Ports on ASA 5508-X

I am new to Firewall management and need help with the following ports on my ASA 5508-X Firewall. Thanks in advance!

Port

Direction

TCP

UDP

Usage

22

Out

Yes

No

Technical Support Services

25

In/Out

Yes

No

Email and bounce messages

53

Out

Yes

Yes

Domain Name Service (DNS)

80

Out

Yes

No

Virus, Spyware, and Category Definition Updates

123

Out

No

Yes

Network Time Protocol (NTP)

8000

In/Out

Yes

No

Web Interface Access

8002

In/Out

Yes

No

Synchronization between linked systems

4 REPLIES 4
Frequent Contributor

Re: Open Ports on ASA 5508-X

You need to close'em all or what?
Highlighted
Beginner

Re: Open Ports on ASA 5508-X

@Florin Barhala 

I want to verify that port 443 and 1883 allow inbound and outbound communication using UDP and TCP. Can I look at these ports using Putty commands?

Everyone's tags (3)
Rising star

Re: Open Ports on ASA 5508-X

why dont you tell us what exactly you want. what is your network setup and share your configuration. than we can help you.



 

please do not forget to rate.
Frequent Contributor

Re: Open Ports on ASA 5508-X

TCP/443 is "controlled" by the "show run http" output you have on your ASA. And it should use TCP only.
As for 1883 I am not familiar with it, what's behind it on ASA?