[Oisf-users] Fwd: Fwd: Unblock whatsapp

[Владислав Дубов]

Thank you. How can I view configuration?  I am totally new to this.

---------- Forwarded message ---------
От: Michał Purzyński <michalpurzynski1 at gmail.com>
Date: ср, 15 янв. 2020 г. в 23:41
Subject: Re: [Oisf-users] Fwd: Unblock whatsapp
To: Владислав Дубов <vladislav.dubov at gmail.com>
Cc: Open Information Security Foundation <
Oisf-users at lists.openinfosecfoundation.org>


If Suricata is blocking anything, there will be an alert or a few. Can you
share you configuration and events that are generated? The eve-log, ideally.

On Wed, Jan 15, 2020 at 12:22 PM Владислав Дубов <vladislav.dubov at gmail.com>
wrote:

> My notebook's local IP address was 192.168.33.217.  I use the Whatsapp web
> version via Chrome.
>
> ---------- Forwarded message ---------
> От: Владислав Дубов <vladislav.dubov at gmail.com>
> Date: ср, 15 янв. 2020 г. в 23:15
> Subject: Fwd: [Oisf-users] Unblock whatsapp
> To: <oisf-users at lists.openinfosecfoundation.org>
>
>
> Thank you.  195.68.154.66 is our pfSense router, which hosts Suricata and
> connects our LAN to the outside WAN.
>
> When the 'messy' things start, I cannot even open the Whatsapp home page
> in my browser.  I tried that yesterday because I initially thought that the
> problem was to do with the Whatsapp web version.
>
> I am going to send you today's log tomorrow morning after I get it from my
> sysadmin.  I will also provide my machine's local IP address.
>
> Thanks again,
>
> Vladislav Dubov
>
> ---------- Forwarded message ---------
> От: James Moe <jimoe at sohnen-moe.com>
> Date: ср, 15 янв. 2020 г. в 22:42
> Subject: Re: [Oisf-users] Unblock whatsapp
> To: oisf-users at lists.openinfosecfoundation.org <
> oisf-users at lists.openinfosecfoundation.org>
>
>
> On 2020-01-15 5:23 AM, Владислав Дубов wrote:
>
>   I am not convinced that Suricata is the cause here, rather a symptom.
> There
> may be resource constraints that are aggravated by Suricata running in the
> host.
>   The log shows something messy starting at 10:56:07 from IP 195.68.154.66,
> about when your Whatsapp failure starts. That IP does not resolve to
> anything here.
>
> > Today this behavior occurred again.  Whatsapp stopped working at around
> 11AM+3:00.
> >
>   Here, Whatsapp shows IP addresses 169.55.60.148 and 108.168.254.65.
> Neither of
> those appear in your log, not even the first octet.
>   What is the IP for Whatsapp at your location?
>
>   The log shows only alerts; there are no dropped packets.
>
>   Try this: disable the Suricata rules. In disable.conf add:
> # Disable all SURICATA rules
> re:SURICATA
>
>   and restart Suricata.
>
> > Yesterday, when we stopped Suricata, Whatsapp restored
> > connection after some time.
> >
>   If the alert log was not rotated, suricata was stopped at 00:38:49?
>   And when did Whatsapp reconnect?
>
>   Execute this command at the router, post result:
> $ sudo iptables -nvL INPUT -w 3 | head -7
>
>
> --
> James Moe
> moe dot james at sohnen-moe dot com
> 520.743.3936
> Think.
>
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