Right Mitul. System is behind some gateway.
On Fri, Jun 27, 2014 at 10:06 PM, Mitul Limbani <mi...@enterux.in> wrote: > I think your asterisk server is behind firewall or some sort of NAT where > the out to in packets are getting masqueraded with local or DMZ IP of your > firewall / gateway box. > > Fix this first to get fail2ban detect the correct public IP. > > Otherwise fail2ban will ban your local GW IP due to which you won't be > able to access the box even from your local network for ssh. > > Hope u know how to fix the firewall snat. > > Mitul > On 27-Jun-2014 9:51 PM, "Jai Rangi" <jpra...@didforsale.com> wrote: > >> Anurag, >> >> Here is small script, that will check your logs and will block the IPs. >> http://www.didforsale.com/blog/is-your-asterisk-system-under-heavy-attack >> >> This is good if you dont expect any registration. If you do have some >> valid registration, you might want to add some counter to see how time IP >> need to fail or how many different users IP is trying to register on before >> blocking the IP. >> >> Jai Rangi >> www.didforslae.com >> >> >> >> On Fri, Jun 27, 2014 at 7:37 AM, Anurag Rana <anuragrana31...@gmail.com> >> wrote: >> >>> >>> Hi All. >>> >>> Someone is attacking on my SIP server. >>> There are lot of requests coming in and I am not able to stop it because >>> I am unable to detect the IP address. >>> I used wireshark to capture the packets. >>> >>> Although I am using very strong password for my SIP users but still is >>> there any way to drop these packets and stop this attack. >>> >>> I tried dropping packet after matching some string (most of the packets >>> from attacker contains string 'VaxSIPUserAgent/3.1' ) but it failed. >>> Packets are still flowing in. >>> >>> iptables -I INPUT 1 -p tcp --dport 5060 -m string --string >>> "VaxSIPUserAgent" --algo bm -j DROP >>> >>> >>> Its something like this >>> >>> Registration from '"30" <sp:30@my_public_ip:5060> failed for >>> '192.168.xxx.xxx:6373' - Wrong Password >>> >>> and there are approx 10 request per minute of this type. >>> >>> Please suggest some way to stop this. >>> >>> >>> -- >>> Anurag Rana >>> http://newbie42.blogspot.in/ >>> On the trampoline of life's experiences, Striving towards a saintly life >>> in the midst of these materialistic turbulences. >>> >>> >>> >>> -- >>> _____________________________________________________________________ >>> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >>> New to Asterisk? Join us for a live introductory webinar every Thurs: >>> http://www.asterisk.org/hello >>> >>> asterisk-users mailing list >>> To UNSUBSCRIBE or update options visit: >>> http://lists.digium.com/mailman/listinfo/asterisk-users >>> >> >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > -- Anurag Rana http://newbie42.blogspot.in/ On the trampoline of life's experiences, Striving towards a saintly life in the midst of these materialistic turbulences.
-- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users