4 author: Michael Orlitzky
5 maintainer: Michael Orlitzky <michael@orlitzky.com>
7 license-file: doc/LICENSE
8 homepage: http://michael.orlitzky.com/code/haeredes.xhtml
9 bug-reports: mailto:michael@orlitzky.com
16 Confirm delegation of NS and MX records.
18 Haeredes is primarily useful for ISP network administrators.
19 Customers will occasionally decide to switch hosts without alerting
20 the current host; this can cause two problems:
22 * With NS records, the previous host (at the very least) keeps
23 hosting a DNS zone that does nothing. If that host uses their
24 authoritative nameserver as a caching lookup server as well, it
25 may return incorrect results to queries about the domain in
28 * For MX records, the situation is slightly worse. Most mail servers
29 will immediately accept mail for which the server thinks it is the
30 ultimate destination. If a mail server is configured as the
31 destination for a domain, but it is not the MX for that domain,
32 then mail submitted to that server may possibly be lost. It is
33 therefore important to remove domains from the old mail host as
34 soon as the MX record is changed.
36 Haeredes can alert administrators when NS/MX records are changed. More
37 detail and usage examples can be found in the man page.
41 Make sure example.com has the expected name servers,
42 [ab].iana-servers.net:
45 $ echo \"example.com\" | haeredes a.iana-servers.net b.iana-servers.net
48 Check orlitzky.com against only one of the expected two nameservers:
51 $ echo \"orlitzky.com\" | haeredes dns1.viabit.com
52 Domain \"orlitzky.com.\" delegates somewhere else: \"dns2.viabit.com.\"
55 Check a nonexistent domain (we provide no delegates, since we
56 know .doesnt-exist will not be delegated):
59 $ echo \"foo.doesnt-exist\" | haeredes
60 Domain \"foo.doesnt-exist.\" not delegated.
65 base >= 4.15 && < 5.0,
93 type: exitcode-stdio-1.0
95 default-language: Haskell2010
98 base >= 4.15 && < 5.0,
99 -- Additional test dependencies.
104 -- These won't work without shelltestrunner installed in your
105 -- $PATH. Maybe there is some way to tell Cabal that.
106 test-suite shelltests
107 type: exitcode-stdio-1.0
109 default-language: Haskell2010
110 main-is: ShellTests.hs
113 base >= 4.15 && < 5.0,
117 source-repository head
119 location: http://gitweb.michael.orlitzky.com/haeredes.git