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Full Discussion: Need help in writing shell script
Top Forums UNIX for Dummies Questions & Answers Need help in writing shell script Post 302848679 by VKIRUPHAKARAN on Thursday 29th of August 2013 06:34:34 PM
Old 08-29-2013
Dear Team,

Appreciate for your suggestions/inputs , below is the detailed steps that are performed and would like to be accomplished using script.

please let me know if this helps?

1. Log in to primary DNS server - Script has to be run both locally and remotely on many servers.

2. Need to check /etc/named.conf file if the zone is already created (grep –i 10.0.11 named.conf)
Eg: if want to add server 10.0.11.13 in to DNS
Code:
zone "11.0.10.in-addr.arpa" in {
type master;
file "db.10.0.11";
};

3. If zone is already existing in the above step when queried, need to go to /var/named directory
4. Then add server entry in file db.10.0.11
EG: 13 IN PTR servername.fg.net. And modify the serial number to yyyymmdd as below highlighted.
Suppose if entry is made on 20th November enter the serial number as 20111120

Code:
root@PDNS1A101 # cat db.10.0.99
$TTL 5h
;SOA rec
99.0.10. in-addr.arpa. IN SOA PDNS1A101.fg.net. root.PDNS1A101.fg.net. ( 20090101; serial number ( you should change to 20111120)
10800; refresh every 3 hours
10800; retry every 3 hours
604800; expire after a week
86400) ; TTL of 1 day
; Name Servers
99.0.10.in-addr.arpa. IN NS PDNS1A101.fg.net.
;Pointer records for 10.0.99

11 IN PTR PSPROA167.fg.net.
12 IN PTR PSPROD055.fg.net.
5. need to add the entry in db.fg.net and also have to change serial number
6. Restart dns service -- svcadm restart dns/server
 

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LEARN ABOUT CENTOS

unbound-streamtcp

unbound-streamtcp(1)						      unbound						      unbound-streamtcp(1)

NAME

       unbound-streamtcp - unbound DNS lookup utility

SYNOPSIS

       unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class

DESCRIPTION

       unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response.

       If  the	server to query is not given using the -f option then localhost (127.0.0.1) is used. More queries can be given on one commandline,
       they are resolved in sequence.

       The available options are:

       name   This name is resolved (looked up in the DNS).

       type   Specify the type of data to lookup.

       class  Specify the class to lookup for.

       -u     Use UDP instead of TCP. No retries are attempted.

       -n     Do not wait for the answer.

       -s     Use SSL.

       -h     Print program usage.

       -f ipaddr[@port]
	      Specify the server to send the queries to. If not specified localhost (127.0.0.1) is used.

EXAMPLES

       Some examples of use.

       $ unbound-streamtcp www.example.com A IN

       $ unbound-streamtcp -f 192.168.1.1 www.example.com SOA IN

       $ unbound-streamtcp -f 192.168.1.1@1234 153.1.168.192.in-addr.arpa. PTR IN

EXIT CODE

       The unbound-streamtcp program exits with status code 1 on error, 0 on no error.

AUTHOR

       This manual page was written by Tomas Hozza <thozza@redhat.com>.

NLnet Labs							   Mar 21, 2013 					      unbound-streamtcp(1)
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