Discovery Mechanism

Discovery Mechanism – UNIX-like

This section includes the following commands:

Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Parse Named Server Configuration File to Retrieve Zone Information

Try to find information about the named server configuration file in the command like the corresponding process.

Command
```
ps -ef | grep named | awk '{for(i=11; i < NF; i++) {printf("%s ", $i)}printf("\n")}'
```
Output
```
/usr/sbin/named -t /var/lib/named -u
```
Mapping

The path specified for the -t option is the path to the configuration file.

If the path is recognized, the job tries to retrieve information about zones and include files to process. The default paths are /etc/named.conf and /etc/namedb/named.conf.

Command

cat <configuration file path> | awk '/zone|include/ {print}'

Output

zone "." in { 
zone "localhost" in { 
zone "od5.lohika.com" in {

Mapping

CMD Output Attribute	CI Name	CI Attribute
Key name	DNS Zone	Name

List Root Domain to Transfer Resource Records

Zone resource records of type CNAME and A are transferred using the dig command and the axfr transfer type.

Command

dig @<server> <domain> axfr | awk '/(CNAME|A)/{print $1, "\t", $4, "\t", $5}'

Output

Ns-2.od5.lohika.com.  CNAME     dc05-2.od5.lohika.com         
od5.lohika.com.         A         134.44.98.22
ftp.od5.lohika.com.   CNAME          od5.lohika.com.

Mapping