Hi Guys, hi Sophos ....
Why is Telnet on Port 23 on WAN open?
Edited TAGs
[edited by: emmosophos at 6:40 PM (GMT -8) on 9 Mar 2023]
Hi Guys, hi Sophos ....
Why is Telnet on Port 23 on WAN open?
This tcpdump: Did you do it on port 23?
Try: tcpdump -ni any port 23
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Yes.
tcpdump -i Port2 port 23
and this is from Log...
Update:
we are under heavy attacks.
The DNAT Rule does not match. What Service is answering here?
So i tried this with a couple of Firewalls. None had Port23 open.
Telnet was a old setting from V17.0 (if i remember correctly).
Please check the tcpdump of all ports to verify the appliance is actually answering.
Is this installation / backup old?
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This is a NEW firewall. Installed yesterday.
Can you provide us/me your access ID?
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Can you provide us/me your access ID?
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Hi,
I provided the access key in the Support Case: 06220855
Hello Guenter,
Thank you for the Case ID, I have found the Access ID.
We’re currently checking the device.
Regards,