Configure a firewall to allow only known IP's. Regards, Mitesh Thakkar +91 94279 07952 GTalk: [email protected]
On Sun, Jul 24, 2011 at 9:06 AM, C F <[email protected]> wrote: > It's not bad but it wont prevent flooding your box with register > attempts and spoofing a user agent is trivia at best. > > On Sat, Jul 23, 2011 at 9:09 PM, Flavio Miranda > <[email protected]> wrote: >> Hello everybody! >> >> I'd like to heard from those with more experience in Security if the >> following configuration is a good attempt to prevent hack: >> >> exten => CALLER,2,Set(header=${SIP_HEADER(User-Agent)}) >> exten => CALLER,3,NoOp(Cabecalho ${header}) >> exten => CALLER,4,GotoIf($["${header}"= "My User Agent"]?6:7) >> >> Considering I have only one type of IP phone in my scenario. >> >> I know, somebody with another IP phone will succeed in dial on my asterisk >> but I think it will limit at one only kind of IP phone. >> >> My question is , if there are some way to break it and use any kind of User >> Agent despite this configuratio. >> >> >> Att, >> >> Flavio Roberto Miranda >> MSN:[email protected] >> Skype: flaviormiranda >> -- >> _____________________________________________________________________ >> -- 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
