Below is the list of steps i need to perform manually as of now and completely new to shell scripting, could you help in writing a shell script to perform the below procedure?
1. Log in to primary DNS server
2. Check /etc/named.conf if 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 there go to /var/named
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. Add entry in db.fg.net (please change serial number here also)
6. Restart dns service -- svcadm restart dns/server
Moderator's Comments:
edit by bakunin: we asked you (in fact several times) to use CODE-tags. What made you think we won't care if you don't? Please use them, we really man it. Thanks.
A shell script is nothing more than commands you would have to type on command line put in a file and made executable using chmod command...
Lets just look at the beginning of your requirement:
Code:
1. Log in to primary DNS server
2. Check /etc/named.conf if zone is already created (grep –i 10.0.11 named.conf)
Your first request makes us wonder
a) If what you want to be executed is to be on a remote host, what is best?
b) Is this script to be used on may hosts (then it makes sense...) if not will it be reused, if so can it not accept the IP to check/add in parameter?
...
So start by writing down all you will be doing ( all the commands (complete line!)
The best may be that after you re logged on, you type script myscript.out then show us the content so we can help you in your script writing
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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=========================
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