Today ISC is pleased to announce the release of Kea 1.6.1, a maintenance update of our production branch Kea 1.6
The new release is available from our website: https://www.isc.org/download/ Or directly from our downloads server: https://downloads.isc.org/isc/kea/1.6.1 This maintenance release brings in two bug fixes for problems that were considered important enough to warrant a maintenance release. If you are not affected by these issues, no upgrade is necessary. However, if you wish to deploy the latest stable Kea version, please upgrade to 1.6.1. If you are interested in the latest development releases with new features, please look at the 1.7.x series. The following issues were fixed since 1.6.0: 1. **Better handling of packets with malformed hostnames**. Null characters are not allowed in the hostname. However, Kea 1.6.0 was overly strict about that and dropped the whole packet if a null character was detected. As a result, slightly misconfigured or buggy clients were completely refused service. This check has been loosened; Kea now ignores just the faulty hostname option and attempts to process the packet. As a result, even buggy or misconfigured clients are able to get service. This fix is of interest only to users who experience clients sending malformed hostnames (#900). 2. **Improved support for backup servers in HA configuration**. Kea 1.4.0 introduced High Availability mode with an optional capability to send lease updates to a third backup server. It was recently discovered that under special circumstances (initial traffic being serviced by the primary server, followed by more than 30 seconds of inactivity), the backup server could close the connection. The primary server would enter a "confused" state where it believed there was data to be received from the backup server, but the connection was broken. In effect, the primary server would enter a busy loop, resulting in 100% CPU utilization and general unresponsiveness to DHCP traffic and API commands. This bug has been fixed. This problem affects only users who use HA configuration with an additional backup server and periods of inactivity. (#964). Cathy Almond ISC Support _______________________________________________ Kea-announce mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-announce
