About DNS in general http://sipxecs.blogspot.com/2009/10/dns-concepts-for-sipxecs.html
<http://sipxecs.blogspot.com/2009/10/dns-concepts-for-sipxecs.html>About subdomains and why you might prefer them http://wiki.sipfoundry.org/display/xecsuserV4r2/Upgrade+or+Install+Planning+for+4.2+and+XMPP On Sat, May 8, 2010 at 2:03 PM, Tony Graziano <[email protected]>wrote: > > > On Sat, May 8, 2010 at 1:24 PM, Robert Hoffmann > <[email protected]>wrote: > >> I would like to do a very basic install of sipXecs with the latest ISO. I >> have a public domain with the needed SIP records. >> Now I see that the sipX proxy is not starting because it requires a local >> DNS server with the same SIP records but pointing its local address. >> I understand that this is basically masquerading the public entries to >> make things easier at the local network - but is this mandatory by design of >> sipX? >> > No, you need split dns. REINSTALL from ISO and let sipx be your dns server > for the PC's behind nat. If on the LAN, get DNS from sipx, if outside, look > up public dns records. > >> >> I have a Zyxel USG-100 Firewall/UTMA with SIP ALG and would like my SIP >> phones to use the public SIP DNS records (and the public IP) and then NAT / >> ALG the phones' requests back ("hairpin") to the sipX proxy. >> >> - I am just learning about deployment, is NATing / ALGing to "hairpin" >> the stuff a smart idea? Is it generally possible? >> >> No. You need to disable ALG/SPI on your zyxel to get remote phones to > register. It's not hairpinning, it registering to sipx, which would use a > b2bua (sipxbridge) to anchor the media and provide rtp. > >> >> - >> - Whether it is smart or not, can sipX be configured to not require a >> local DNS server? - so that I can try the above? >> >> You need to dns server on sipx or a dns server INTERNALLY to host the > proper records, even if no pc points to in internally. If you have a pc > internally, it should not resolved the domain publicly. > >> >> - >> >> Thank you very much for any ideas / advices. I am an IT student and have >> just started exploring the possibilities of SIP PBX deployments. >> >> >> You might consider running sipx on a subdomain instead of the domain > itself, I think that will resolve all your problems. Public dns records need > to be available, but local pc/phones need to resolve the subdomain > internally, not inside, backoutside, then back in. Noone would in their > right mind WANT to deliberately do that, so thanks for asking, but don;t do > what you asked in the first place. It's a horrible way to start learning. > >> >> _______________________________________________ >> sipx-users mailing list [email protected] >> List Archive: http://list.sipfoundry.org/archive/sipx-users >> Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users >> sipXecs IP PBX -- http://www.sipfoundry.org/ >> > > > > -- > ====================== > Tony Graziano, Manager > Telephone: 434.984.8430 > sip: [email protected] > Fax: 434.984.8431 > > Email: [email protected] > > LAN/Telephony/Security and Control Systems Helpdesk: > Telephone: 434.984.8426 > sip: [email protected] > Fax: 434.984.8427 > > Helpdesk Contract Customers: > http://www.myitdepartment.net/gethelp/ > > Why do mathematicians always confuse Halloween and Christmas? > Because 31 Oct = 25 Dec. > > -- ====================== Tony Graziano, Manager Telephone: 434.984.8430 sip: [email protected] Fax: 434.984.8431 Email: [email protected] LAN/Telephony/Security and Control Systems Helpdesk: Telephone: 434.984.8426 sip: [email protected] Fax: 434.984.8427 Helpdesk Contract Customers: http://www.myitdepartment.net/gethelp/ Why do mathematicians always confuse Halloween and Christmas? Because 31 Oct = 25 Dec.
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