Hi, We are trying to create a domain for reverse dns with the following information: domain: 184.128.95.in-addr.arpa descr: Reverse delegation admin-c: JK521-RIPE tech-c: JK521-RIPE zone-c: JK521-RIPE nserver: dns1.telesmart-telekom.com nserver: dns2.telesmart-telekom.com mnt-by: jasminakecap-mnt changed: jasminakecap@telesmart.mk 20100121 source: RIPE But we are getting these errors: # of Creations # of Modifications # of Deletions # of No-Operations # of Syntax Errors Success 0 0 0 0 - Failure 1 0 0 - 0 DETAILED EXPLANATION: Create FAILED: [domain] 184.128.95.in-addr.arpa ***Info: Authorisation passed ***Info: Syntax check passed domain: 184.128.95.in-addr.arpa descr: Reverse delegation admin-c: JK521-RIPE tech-c: JK521-RIPE zone-c: JK521-RIPE nserver: dns1.telesmart-telekom.com nserver: dns2.telesmart-telekom.com mnt-by: jasminakecap-mnt changed: jasminakecap@telesmart.mk 20100121 source: RIPE ***Info: Parent has RIPE NCC nameservers. ***Info: Authorisation for parent [inetnum] 95.128.184.0 - 95.128.184.255 using mnt-by: not authenticated by: jasminakecap-mnt ***Info: Authorisation for parent [domain] 95.in-addr.arpa using mnt-lower: not authenticated by: RIPE-NCC-REVERSE-MNT ***Error: RDNS Authorisation failed Can you please explain to me what is the meaning of these errors? Is it due to incorrect configuration of our dns1-primary and dns2-secondary servers or is it due to some registration problems with RIPE? Thank you in advance for your help, Marija Jovanovska BScEE Telesmart Telekom DOO TS1 bul. Vojvodina br.4 ul. Nikola Parapunov bb (NOC) 1000 Skopje R.Macedonia Tel +389 2 3070244 Fax: +389 2 3093761 Mobile: +389 78 444459 e-mail: <mailto:marija.jovanovska@telesmart.mk> marija.jovanovska@telesmart.mk