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Groups > linux.debian.user > #261543

Re: Debian 12 - IPv4 blocked without fail2ban & co

From Romain <romain@borezo.info>
Newsgroups linux.debian.user
Subject Re: Debian 12 - IPv4 blocked without fail2ban & co
Date 2023-09-07 12:30 +0200
Message-ID <HbkqR-7kcK-9@gated-at.bofh.it> (permalink)
References <HaUG6-72RC-5@gated-at.bofh.it> <HbhMl-7hVc-9@gated-at.bofh.it> <Hbkhc-7k6X-7@gated-at.bofh.it>
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No, I'm using the DNS server included in my ISP modem, in which I can only
select the last digits. It's impossible that an internal device has
received a public IP address in the DNS zone (or it's not something I've
done).

With -n (sometimes it stops at hop 7, sometimes 9):
└─# mtr -nr 54.38.38.159 -4
Start: 2023-09-07T08:17:12+0000
HOST: rpi4                        Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 192.168.0.1                0.0%    10    1.1   0.9   0.5   1.3   0.3
  2.|-- 80.10.239.9                0.0%    10    3.2   3.3   2.3   5.3   0.9
  3.|-- 193.253.80.138             0.0%    10    4.5   4.0   2.2   6.0   1.2
  4.|-- 193.252.98.94              0.0%    10    3.4   4.3   3.1  12.2   2.8
  5.|-- 193.252.98.101             0.0%    10    3.5   3.4   2.9   3.6   0.2
  6.|-- 91.121.131.193             0.0%    10    4.0  12.4   3.7  82.6  24.7
  7.|-- ???                       100.0    10    0.0   0.0   0.0   0.0   0.
0
  8.|-- ???                       100.0    10    0.0   0.0   0.0   0.0   0.
0
  9.|-- 192.168.0.2               90.0%    10  3461. 3461. 3461. 3461.   0.
0

Le jeu. 7 sept. 2023 à 12:17, Max Nikulin <manikulin@gmail.com> a écrit :

> On 07/09/2023 14:31, Romain wrote:
> >   12.|-- rpi4.home                 90.0%    10  7955. 7955. 7955. 7955.
> >    0.0
>
> May it happen that you associated a local device with the IP of your
> remote server? Check configuration of the .home DNS zone. Try to add -n
> option to suppress DNS lookup and compare results.
>
>

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Thread

Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-06 09:00 +0200
  Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-06 10:50 +0200
  Re: Debian 12 - IPv4 blocked without fail2ban & co Michel Verdier <mv524@free.fr> - 2023-09-06 10:50 +0200
  Re: Debian 12 - IPv4 blocked without fail2ban & co Andy Smith <andy@strugglers.net> - 2023-09-06 11:00 +0200
    Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-06 11:10 +0200
      Re: Debian 12 - IPv4 blocked without fail2ban & co Andy Smith <andy@strugglers.net> - 2023-09-06 15:30 +0200
        Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-06 15:40 +0200
          Re: Debian 12 - IPv4 blocked without fail2ban & co Paul van der Vlis <paul@vandervlis.nl> - 2023-09-07 10:00 +0200
            Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-07 10:40 +0200
  Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-07 09:40 +0200
    Re: Debian 12 - IPv4 blocked without fail2ban & co Max Nikulin <manikulin@gmail.com> - 2023-09-07 12:20 +0200
      Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-07 12:30 +0200
        Re: Debian 12 - IPv4 blocked without fail2ban & co Andy Smith <andy@strugglers.net> - 2023-09-07 12:40 +0200
          Re: Debian 12 - IPv4 blocked without fail2ban & co Max Nikulin <manikulin@gmail.com> - 2023-09-07 13:00 +0200
            Re: Debian 12 - IPv4 blocked without fail2ban & co zithro <slack@rabbit.lu> - 2023-09-07 14:20 +0200
              Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-07 23:50 +0200
                Re: Debian 12 - IPv4 blocked without fail2ban & co Max Nikulin <manikulin@gmail.com> - 2023-09-09 05:00 +0200
                Re: Debian 12 - IPv4 blocked without fail2ban & co Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2023-09-09 06:50 +0200
                Re: Debian 12 - IPv4 blocked without fail2ban & co Romain <romain@borezo.info> - 2023-09-09 10:40 +0200

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