ISC_DHCP 4.4.2b1 is now available for download.
Thomas Markwalder
tmark at isc.org
Wed Dec 18 17:23:21 UTC 2019
ISC DHCP 4.4.2b1 is now available for download.
This is the beta release of ISC DHCP 4.4.2b1, a maintenance release that
contains a few minor features and a number of bug fixes.
Field testing is an important part of our quality process. Please report
bugs to dhcp-bugs at isc.org.
A list of the changes in this release has been appended to the end of
this message. For a complete list of changes from any previous release,
please consult the RELNOTES file within the source distribution.
Knowledgebase articles about various topics and features can be found here:
https://kb.isc.org/docs
Webinars can be found here:
https://www.isc.org/presentations
This release and its OpenPGP-signatures are available now from:
https://www.isc.org/download
https://downloads.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz
http://downloads.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha512.asc
http://downloads.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha256.asc
http://downloads.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha1.asc
or
http://ftp.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz
http://ftp.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha512.asc
http://ftp.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha256.asc
http://ftp.isc.org/isc/dhcp/4.4.2b1/dhcp-4.4.2b1.tar.gz.sha1.asc
ISC's Release Signing Key can be obtained at:
https://www.isc.org/pgpkey
The following is an excerpt from the 4.4.2b1 release notes:
Please note that that ISC DHCP is now licensed under the Mozilla Public
License,
MPL 2.0. Please see https://www.mozilla.org/en-US/MPL/2.0/ to read the
MPL 2.0
license terms.
While release 4.4.2b1 is primarily a maintenance release that addresses
a number
of defects, it does introduce a few new features:
- Keama - Keama is a migration utility that assists in converting ISC
DHCP server
configuration files to Kea configuration files. It is found in the keama
subdirectory and includes a README.md file with instructions on how
to build it
as well as a man page on its usage.
- Two new server parameters related to ping checking were added:
1. ping-cltt-secs, which allows the user to specify the number of
seconds that must
elapse since CLTT before a ping check is conducted.
2. ping-timeout-ms, which allows the user to specify the amount of time
the server
waits for a ping-check response in milliseconds rather than in seconds.
For information on how to install, configure, and run this software, as
well as how to find documentation and report bugs, please consult the
README file.
ISC DHCP uses standard GNU configure for installation. Please review the
output of "./configure --help" to see what options are available.
The system has only been tested on Linux, FreeBSD, and Solaris, and may
not work on other platforms. Please report any problems and suggested
fixes to <dhcp-users at isc.org>.
ISC DHCP is open source software maintained by Internet Systems
Consortium. This product includes cryptographic software written by
Eric Young (eay at cryptsoft.com).
Changes since 4.4.1 (New Features)
- A new configuration parameter, ping-cltt-secs (v4 operation only), has
been added to allow the user to specify the number of seconds that must
elapse since CLTT before a ping check is conducted. Prior to this, the
value was hard coded at 60 seconds. Please see the server man pages for
a more detailed discussion.
[ISC-Bugs #36283]
- A new configuration parameter, ping-timeout-ms (v4 operation only),
has been added that allows the user to specify the amount of time
the server waits for a ping-check response in milliseconds rather
than in seconds (via ping-timeout). When greater than zero, the value
of ping-timeout-ms will override the value of ping-timeout. Thanks
to Jay Doran from BlueCat Networks for suggesting this feature.
[Gitlab #10]
- An experimental tool called Keama (KEA Migration Assistant), which helps
translate ISC DHCP configurations to Kea configurations, is now included
in the distribution.
[Gitlab #34]
Changes since 4.4.1 (Bug Fixes)
- Corrected a misuse of the BIND9 DDNS API which caused DDNS updates to be
carried out over TCP rather than UDP. The coding error was exposed by
migration to BIND 9.11. Thanks to Jinmei Tatuya at Infoblox for
reporting the issue.
[ISC-Bugs #47757]
- BIND 9 now defaults to requiring python to build. The Makefile for
building BIND 9 when bundled with ISC DHCP was modified to turn off
this dependency.
[Gitlab #3]
- Corrected a dual-stack mixed-mode issue that occurs when both
ddns-guard-id-must-match and ddns-other-guard-is-dynamic
are enabled and that caused the server to incorrectly interpret
the presence of a guard record belonging to another client as
a case of no guard record at all. Thanks to Fernando Soto
from BlueCat Networks for reporting this issue.
[Gitlab #1]
- Corrected a compilation issue that occurred when building without DNS
update ability (e.g. by undefining NSUPDATE).
[Gitlab #16]
- Corrected an issue that was causing the server, when running in
DHPCv4 mode, to segfault when class lease limits are reached.
Thanks to Peter Nagy at Porion-Digital for reporting the matter
and submitting a patch.
[Gitlab #13]
- Made minor changes to eliminate warnings when compiled with GCC 9.
Thanks to Brett Neumeier for bringing the matter to our attention.
[Gitlab #15]
- Fixed potential memory leaks in parser error message generation
spotted by Coverity, CIDs: 1448191, 1448193, 1448194, 1448195
[Gitlab #30]
- Updated URL of IEEE oui.txt in contrib/dhcp-lease-list.pl. Thanks
to Tommy Smith for contributing the patch.
[Gitlab #26]
- Fixed define flags when using SO_BINDTODEVICE. Thanks to Joe LeVeque for
reporting the issue.
[GitLab #19]
- Applied a patch from OpenBSD to always set the scope id of outbound
DHPCv6 packets. Note this change only applies when compiling under
OpenBSD. Thanks to Brad Smith at OpenBSD from bringing it to our
attention.
[Gitlab #33]
- Modified dhclient to not discard config file leases that are
duplicates of server-provided leases and to retain such leases
after they have been used as the fallback active lease and
DHCP service has been restored. This allows them to be used
more than once during the lifetime of a dhclient instance.
This applies to DHCPv4 operation only.
[Gitlab #9]
- Corrected a number of reference counter and zero-length buffer leaks.
[Gitlab #57]
- Closed a small window of time between the installation of graceful
shutdown signal handlers and application context startup, during which
the receipt of shutdown signal would cause a REQUIRE() assertion to
occur. Note this issue is only visible when compiling with
ENABLE_GENTLE_SHUTDOWN defined.
[Gitlab #53]
- Corrected a buffer overflow that can occur when retrieving zone
names that are more than 255 characters in length.
[Gitlab #20]
- The "d" domain name option format was incorrectly handled as text
instead of RFC 1035 wire format. Thanks to Jay Doran at BlueCat Networks
for reporting this issue.
[Gitlab #2]
- Improved the error message issued when a host declaration has both
a uid and a dhcp-client-identifier. Server configuration parsing will
now fail if a host declaration specifies more than one uid.
[Gitlab #7]
- Updated developer's documentation on building and running unit tests.
Removed support for --with-atf=bind as BIND 9 no longer bundles in ATF
source.
[Gitlab #35]
- Fixed a syntax error in ldap.c which cropped up under Ubuntu
18.04.1/gcc 7.4.0. Thanks to Charles Hedrick for pointing it out.
[Gitlab #51]
- Added clarification to dhcp-options.5 section on ip-address values
describing the first-use DNS resolution of options with hostnames as
values (e.g. next-server).
[Gitlab #28]
- The option format for the server option omapi-key was changed to a
format type 'k' (key name); while server options ldap-port and
ldap-init-retry were changed to 'L' (unsigned 32-bit integer). These
three options were inadvertently broken when the 'd' format content
was changed to comply with RFC 1035 wire format (see Gitlab #2).
[Gitlab #68]
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