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Code Issues Releases Wiki Activity

AXFR Transfers (for secondary DNS servers): Allow IPv6 addresses (#1787)

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This commit is contained in:
David Duque 2020-07-08 23:26:47 +01:00 committed by GitHub
parent 6fd3195275
commit e6102eacfb
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2 changed files with 6 additions and 5 deletions
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9
management/dns_update.py
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@ -967,18 +967,19 @@ def set_secondary_dns(hostnames, env):
try:
response = resolver.query(item, "A")
except (dns.resolver.NoNameservers, dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
raise ValueError("Could not resolve the IP address of %s." % item)
try:
response = resolver.query(item, "AAAA")
except (dns.resolver.NoNameservers, dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
raise ValueError("Could not resolve the IP address of %s." % item)
else:
# Validate IP address.
try:
if "/" in item[4:]:
v = ipaddress.ip_network(item[4:]) # raises a ValueError if there's a problem
if not isinstance(v, ipaddress.IPv4Network): raise ValueError("That's an IPv6 subnet.")
else:
v = ipaddress.ip_address(item[4:]) # raises a ValueError if there's a problem
if not isinstance(v, ipaddress.IPv4Address): raise ValueError("That's an IPv6 address.")
except ValueError:
raise ValueError("'%s' is not an IPv4 address or subnet." % item[4:])
raise ValueError("'%s' is not an IPv4 or IPv6 address or subnet." % item[4:])
# Set.
set_custom_dns_record("_secondary_nameserver", "A", " ".join(hostnames), "set", env)

2
management/templates/custom-dns.html
View File

@ -90,7 +90,7 @@
<div class="col-sm-offset-1 col-sm-11">
<p class="small">
Multiple secondary servers can be separated with commas or spaces (i.e., <code>ns2.hostingcompany.com ns3.hostingcompany.com</code>).
To enable zone transfers to additional servers without listing them as secondary nameservers, add an IP address or subnet using <code>xfr:10.20.30.40</code> or <code>xfr:10.20.30.40/24</code>.
To enable zone transfers to additional servers without listing them as secondary nameservers, add an IP address or subnet using <code>xfr:10.20.30.40</code> or <code>xfr:10.0.0.0/8</code>.
</p>
<p id="secondarydns-clear-instructions" style="display: none" class="small">
Clear the input field above and click Update to use this machine itself as secondary DNS, which is the default/normal setup.