The haeredes package

[Tags:agpl, program, test]

Haeredes is primarily useful for ISP network administrators. Customers will occasionally decide to switch hosts without alerting the current host; this can cause two problems:

Haeredes can alert administrators when NS/MX records are changed. More detail can be found in the man page.


Make sure has the expected name servers, [ab]

$ haeredes <<< ""

If you use --no-append-root and your nameservers are rooted, you must remember to supply the trailing dot yourself. Otherwise, you'll get false positives.

$ haeredes --no-append-root \
           <<< ""
Domain "" delegates somewhere else: "" ""

Check against the expected name servers, using

$ haeredes --server \
           <<< ""

Check against only one of the expected two nameservers:

$ haeredes <<< ""
Domain "" delegates somewhere else: ""

Check a nonexistent domain (we provide no delegates, since we know .invalid will not be delegated):

$ haeredes <<< "example.invalid"
Domain "example.invalid." not delegated.


Versions 0.1, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4
Dependencies base (==4.*), bytestring (==0.10.*), cmdargs (==0.10.*), dns (==1.*), HUnit (==1.2.*), iproute (==1.2.*), MissingH (==1.2.*), parallel-io (==0.3.*), QuickCheck (==2.*), test-framework (==0.8.*), test-framework-hunit (==0.3.*), test-framework-quickcheck2 (==0.3.*) [details]
License GPL-3
Author Michael Orlitzky
Maintainer Michael Orlitzky <>
Stability Unknown
Category DNS, Utils
Home page
Bug tracker
Source repository head: git clone -b master
Uploaded Fri Sep 13 14:18:06 UTC 2013 by MichaelOrlitzky
Distributions NixOS:0.4.4
Downloads 1502 total (4 in the last 30 days)
0 []
Status Docs uploaded by user [build log]
All reported builds failed [all 1 reports]


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