2. Служба доменных имен сети ЛОКОС Дмитрий Акимов (Dmitry.Akimov@ln.lokos.net)

3. DNS server lokos.net DNS server ln.lokos.net DNS server vls.lokos.net DNS server loiro.lokos.net

4. www.ln.lokos.net DNS server DNS: www.ln.lokos.net ? IP: 172.16.2.4 WWW server (172.16.2.4) GET / HTTP/1.0

5. www.ln.lokos.net 172.16.2.4 217.148.214.98 NAT 217.148.214.98172.16.2.4 www.ln.lokos.net

6. DNS server (внутренний) DNS server (публичный) internet forward

7. DNS server DNS: www.ln.lokos.net ? IP: 172.16.2.4 DNS: www.ln.lokos.net ? IP: 217.148.214.98 локальный пользователь (172.16.2.x) пользователь из интернета

10. options { directory "/var/named/"; allow-query { any; }; allow-transfer { none; }; forwarders { 172.16.63.253; }; }; view "internal" { match-clients { 172.16/16; 192.168/16; 127/8; }; zone "vls.lokos.net" { type master; allow-update { none; }; file "int/vls.lokos.net"; }; view "external" { match-clients { any; }; recursion no; zone "vls.lokos.net" { type master; allow-update { none; }; file "ext/vls.lokos.net"; }; /etc/named.conf

11. www IN A 172.16.29.2 www IN A 217.148.214.2 int/vls.lokos.net ext/vls.lokos.net

12. IP: 217.148.214.98 ? DNS сервер зоны 214.148.217.in-addr.arpa 98 CNAME 98.214.148.217.in-addr.ln.lokos.net. DNS сервер зоны ln.lokos.net $ORIGIN 214.148.217.in-addr.ln.lokos.net. 98 PTR ns.ln.lokos.net. DNS: ns.ln.lokos.net

13. /etc/named.conf zone “ln.lokos.net" { type master; file "ext/ln.lokos.net"; }; zone "214.148.217.in-addr.arpa" { type slave; file "ext/in-addr.ln.lokos.net"; masters { 172.16.63.253; }; }; ext/ln.lokos.net $ORIGIN ln.lokos.net. wwwA217.148.214.98 $ORIGIN 214.148.217.in-addr.ln.lokos.net. 98 PTR www.ln.lokos.net. /etc/named.conf zone "214.148.217.in-addr.arpa" { type master; file "ext/in-addr.lokos.net"; }; ext/in-addr.lokos.net $ORIGIN 214.148.217.in-addr.arpa. 98 CNAME 98.214.148.217.in-addr.ln.lokos.net. 2 CNAME 2.214.148.217.in-addr.vls.lokos.net. 128 CNAME 128.214.148.217.in-addr.loiro.lokos.net. DNS сервер зоны ln.lokos.net DNS сервер зоны lokos.net