Editing Zimbra Deployment for Shubham (section)

== '''<nowiki># Configure DNS Server </nowiki>''' ==


'''<nowiki>=====================================================================</nowiki>'''

<nowiki>#yum install bind </nowiki>

<nowiki>#vim /etc/named.conf </nowiki>

[root@mail ~]# cat /etc/named.conf 
 // 
 // named.conf 
 // 
 // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS 
 // server as a caching only nameserver (as a localhost DNS resolver only). 
 // 
 // See /usr/share/doc/bind*/sample/ for example named configuration files. 
 // 
 options { 
 listen-on port 53 { 127.0.0.1; '''10.240.0.2;''' }; 
 listen-on-v6 port 53 { ::1; }; 
 directory "/var/named"; 
 dump-file "/var/named/data/cache_dump.db"; 
 statistics-file "/var/named/data/named_stats.txt"; 
 memstatistics-file "/var/named/data/named_mem_stats.txt"; 
 allow-query { localhost; }; 
 /* 

- If you are building an AUTHORITATIVE DNS server, do NOT enable recursion. 

- If you are building a RECURSIVE (caching) DNS server, you need to enable  recursion. 

- If your recursive DNS server has a public IP address, you MUST enable access  control to limit queries to your legitimate users. Failing to do so will  cause your server to become part of large scale DNS amplification  attacks. Implementing BCP38 within your network would greatly  reduce such attack surface 

 <nowiki>*/ </nowiki>
 recursion yes; 
 dnssec-enable yes; 
 dnssec-validation yes; 
 dnssec-lookaside auto; 
 /* Path to ISC DLV key */ 
 bindkeys-file "/etc/named.iscdlv.key"; 
 managed-keys-directory "/var/named/dynamic"; 
 pid-file "/run/named/named.pid"; 
 session-keyfile "/run/named/session.key"; 
 }; 
 logging { 
 channel default_debug { 
 file "data/named.run"; 
 severity dynamic; 
 }; 
 }; 
 zone "." IN { 
 type hint; 
 file "named.ca"; 
 }; 
 '''zone "shubham.co" IN { '''
 '''type master; '''
 '''file "shubham.for"; '''
 '''allow-update { none; }; '''
 '''}; '''
 '''zone "0.240.10.in-addr.arpa" IN { '''
 '''type master; '''
 '''file "shubham.rev"; '''
 '''allow-update { none; }; '''
 '''}; '''
 include "/etc/named.rfc1912.zones"; 
 include "/etc/named.root.key"; 
 
'''[root@mail ~]# cd /var/named/'''

'''[root@mail named]# cat shubham.for '''

 '''$TTL 1D '''
 '''@IN SOAmail.shubham.co. root.shubham.co. ( '''
 '''20150930<nowiki>; serial </nowiki>'''
 '''1D<nowiki>; refresh </nowiki>'''
 '''1H<nowiki>; retry </nowiki>'''
 '''1W<nowiki>; expire </nowiki>'''
 '''3H )<nowiki>; minimum </nowiki>'''
 '''INNSmail.shubham.co. '''
 '''INMX 10mail.shubham.co. '''
 '''mailINA10.240.0.2 '''
 '''shubham.coINA10.240.0.2 '''

'''[root@mail named]# cat shubham.rev '''
 '''$TTL 1D '''
 '''@IN SOAmail.shubham.co. root.shubham.co. ( '''
 '''20150930<nowiki>; serial </nowiki>'''
 '''1D<nowiki>; refresh </nowiki>'''
 '''1H<nowiki>; retry </nowiki>'''
 '''1W<nowiki>; expire </nowiki>'''
 '''3H )<nowiki>; minimum </nowiki>'''
 '''INNSmail.shubham.co. '''
 '''INMX 10mail.shubham.co. '''
 '''mailINA10.240.0.2 '''
 '''shubham.coINA10.240.0.2 '''
 '''2INPTRmail.shubham.co. '''
 '''2INPTRmail. '''
 
'''<nowiki>#named-checkzone shubham.co shubham.for </nowiki>'''

'''<nowiki>#named-checkzone shubham.co shubham.rev </nowiki>'''


'''<nowiki>#systemctl enable named</nowiki>'''

'''<nowiki>#systemctl restart named</nowiki>'''


<nowiki>================================================== ==================</nowiki>