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Logesh_Kumar_Ma
Participant

Command to identify the non-standard ports

hi,

It will be appreciated, if could help me with command to show the service usage. example, Need to verify the port 23 or port 80 is used in policy or not.  Thank you

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18 Replies
Danny
Champion Champion
Champion

image.png

Logesh_Kumar_Ma
Participant

Hi Danny,

thank you for your update. I am looking in CLI format. I have tried the command - mgmt_cli show service-tcp name "telnet" but actually it did not tell whether telnet service is used in policy or not.

Once again thank you for your reply.

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PhoneBoy
Admin
Admin

You can use “where-used” to determine if it’s in use anywhere but you have to parse the results as it will include all policy packages.

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Logesh_Kumar_Ma
Participant

@PhoneBoy , Apologies for late response, It took sometime to build the lab. I have tried the option but I am ending with error below.

CP-MGMT> mgmt_cli show service-tcp name "telnet" where-used
MGMT9000 Error: The parameters of show-service-tcp command should be provided in pairs (key and value). You have provided an odd number of parameters which suggests that you are probably missing a parameter.

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the_rock
Legend
Legend

I think what Danny gave you works, but as far as actual shell command for this, not sure if that exists though...maybe someone else can confirm.

You can always do something like netstat -an | grep "port number"...for example netstat -an | grep "443", but mind you thats only for 1 port...not sure if there is a flag you can use for group of ports.

I tried netstat -an | grep "1-700", but nothing came up, so guess that does not work. I will play around and update you.

Andy

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Logesh_Kumar_Ma
Participant

@the_rock , thank you for your response. Kindly let me know your update. Thank you once again.

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the_rock
Legend
Legend

No problem, I will check a bit later and see if anything comes up.

Andy

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the_rock
Legend
Legend

Im sorry, I tried so many combinations on command like, but cant get one for range of ports with netstat. Not sure if thats even possible...

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Logesh_Kumar_Ma
Participant

@the_rock , np. thank you 

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Matlu
Advisor

Hello, my friend.

Taking advantage of this "discussion" from a couple of years ago.

A doubt, based on the following image.

CH1.png

It means that this "box" where I am applying the command "netstat -an | ....", is "listening" on port 443, to any address in general, right?

It can be either connections from the same LAN, or from the Internet, or am I wrong?

Cheers. 🙂

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the_rock
Legend
Legend

Its applicable regardless where traffic comes from.

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Timothy_Hall
Champion
Champion

On the gateway from expert mode try fw up_execute ipp=6 dport=80

Omitted parameters such as src,dst,sport are assumed to be Any.

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Logesh_Kumar_Ma
Participant

@Timothy_Hall , thank you. let me try.

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Logesh_Kumar_Ma
Participant

@Timothy_Hall , thank you for update and apologies for late response. I have tried but its not giving the exact result.

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Timothy_Hall
Champion
Champion

This should work: where-used name telnet

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Logesh_Kumar_Ma
Participant

@Timothy_Hall  Yes, thank you...  it wokred ...

mgmt_cli where-used name "telnet" --format json

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Bob_Zimmerman
Authority
Authority

Note that this only tells you where the object named "telnet" is used. If somebody set up a separate service object and named it "elnet-tay", then gave that object TCP port 23 and used it in a rule, 'where-used name telnet' would not find it. You should dump all the service-tcp and service-udp objects, filter them for the ports you care about (careful with port ranges!), then use 'where-used' on those.

And of course, none of this will tell you about rules with the service set to "Any".

Logesh_Kumar_Ma
Participant

@Bob_Zimmerman , Thank you for the update, I will try it.

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