rust_fast_port_scanner returns all ports

[sylvain101010]

Hello @claudiociardelli ,
I tested rust_fast_port_scanner today. Not sure if this is an issue or a lack of understanding from me:
I run the program with the IP address of my linux server to check what ports might be listening to requests.
so I ran the command like this:

./target/release/rust_fast_port_scanner 192.168.1.70

I will not print the result here, But I get 1002 rows in the result so, all the ports tested.
From @claudiociardelli (https://github.com/skerkour/bloom/issues/72)

However when I check what ports are listening as per https://www.techrepublic.com/article/how-to-locate-and-close-an-open-port-in-linux/
I only see 6 open ports

coco@dev01:~/projects/kerkour.com/2021/rust_fast_port_scanner$ sudo ss -tulwn | grep LISTEN
tcp   LISTEN 0      511                            127.0.0.1:41683      0.0.0.0:*

tcp   LISTEN 0      4096                       127.0.0.53%lo:53         0.0.0.0:*

tcp   LISTEN 0      128                              0.0.0.0:22         0.0.0.0:*

tcp   LISTEN 0      100                              0.0.0.0:25         0.0.0.0:*

tcp   LISTEN 0      100                                 [::]:25            [::]:*

[sylvain101010]

Thank you for reaching out @claudiociardelli,

i think it should come from your firewall. What does return

$ nmap -T4 -sT 192.168.1.70

?

Also what is the operating system of your server?

[sylvain101010]

Or it may come from an actual bug, that f1ea1ea should have fixed.

Could you tell me if the result is similar with the new version

[claudiociardelli]

NAME="Ubuntu"
VERSION="20.04.3 LTS (Focal Fossa)"

I applied the fix, but still not returning all ports.
Nmap tells me this

~/projects/kerkour.com/2021/rust_fast_port_scanner$ nmap -T4 -sT 192.168.1.70
Starting Nmap 7.80 ( https://nmap.org ) at 2021-10-16 20:31 UTC
Nmap scan report for dev01 (192.168.1.70)
Host is up (0.00013s latency).
Not shown: 998 closed ports
PORT   STATE SERVICE
22/tcp open  ssh
25/tcp open  smtp

Nmap done: 1 IP address (1 host up) scanned in 0.25 seconds

[sylvain101010]

Thanks for the feedback. What does return https://github.com/skerkour/black-hat-rust/tree/main/ch_02/tricoder cargo run -- 192.168.1.70 ?

…

-------- Original Message --------

On Oct 16, 2021, 22:35, claudiociardelli wrote: NAME="Ubuntu" VERSION="20.04.3 LTS (Focal Fossa)" I applied the fix, but still not returning all ports. Nmap tells me this ~/projects/kerkour.com/2021/rust_fast_port_scanner$ nmap -T4 -sT 192.168.1.70 Starting Nmap 7.80 ( https://nmap.org ) at 2021-10-16 20:31 UTC Nmap scan report for dev01 (192.168.1.70) Host is up (0.00013s latency). Not shown: 998 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp Nmap done: 1 IP address (1 host up) scanned in 0.25 seconds — You are receiving this because you authored the thread. Reply to this email directly, [view it on GitHub](#3 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/ABPDBCD5YL4EC2LJOFTTJGDUHHO2VANCNFSM5GD64HEQ). Triage notifications on the go with GitHub Mobile for [iOS](https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675) or [Android](https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub).

[claudiociardelli]

Sylvain, tricorder and rust_fast_port_scan now work correcty. I wonder if I had not retested correctly yesterday after refreshing my local repository.
Thx for your help

[sylvain101010]

I'm glad to hear that :)

Have a nice day