Home/ Questions/Q 8940379
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-15T11:01:20+00:00

I’m looking for methods (iptables rules, etc…) to prevent the asterisk version from showing

  • 0

I’m looking for methods (iptables rules, etc…) to prevent the asterisk version from showing on a nmap udp scan without closing (drop) the port. If I open it for some ip address, a nmap udp scan to port 5060 from this ip address can resolve the asterisk version(nmap -sU -sV -p 5060 <ipaddress>):

PORT     STATE  SERVICE VERSION
5060/udp open   sip     Asterisk PBX 1.8.13.0

Is there some way that only shows port 5060 open? Is it possible to hide this asterisk info or change it?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I think you can use pbx info by followin in sip.conf

    useragent=SIPClient XXX

    But actualy on my host that command show:

    [root@pro-sip ~]# nmap -sU -sV -p 5060  78.47.XXX.XXX

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2012-12-05 22:35 UTC
Interesting ports on pro-sip.net (78.47.XXX.XXX):
PORT     STATE         SERVICE VERSION
5060/udp open|filtered sip

Nmap finished: 1 IP address (1 host up) scanned in 52.025 seconds

    so maybe on your host it just find some issue and guess it is asterisk version XXX

    • 0