Monitoring DNS Server

DNS Server

Short for Domain Name System (or Service or Server), an Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address.

Because DNS Server is one of important server, there is need to monitoring. In here, I will monitoring DNS Server with MRTG.

For DNS Server installation, you can see in here.

First, download these file, then save and extract in /usr/local/bin/. You can modify this file, to change location of rndc or ndc and named.stats.

Then create config file, example dns.cfg:

Target[dns-server]: `/usr/local/bin/dnsstats.pl`
Title[dns-server]: DNS Server
Options[dns-server]: growright,noinfo,nopercent,unknaszero,perminute,pngdate
RouterUptime[dns-server]: RiversideNet@localhost
MaxBytes[dns-server]: 32000
AbsMax[dns-server]: 64000
RRDRowCount[dns-server]: 3200
Colours[dns-server]: YELLOW #F9C000,RED #F90000,LIGHT YELLOW #FFFFBB, LIGHT RED #FF8080
ShortLegend[dns-server]:queries/m
YLegend[dns-server]: Qs per Minute
Legend1[dns-server]: Queries received over 1 minute
Legend2[dns-server]: Failed Queries received over 1 minute
Legend3[dns-server]: Maximal Queries over 5 minutes
Legend4[dns-server]: Maximal Failed Queries over 5 minutes
LegendI[dns-server]: Queries:
LegendO[dns-server]: Failures:
PNGTitle[dns-server]: DNS Server

Call your config :

/usr/local/bin/mrtg /usr/local/etc/dns.cfg

Now you can monitor your DNS Server about success and failure queries per minute.

Thanks

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