httpd Host header validation check with IPv6 address in MCMP requests --------------------------------------------------------------------- Key: MODCLUSTER-584 URL: https://issues.jboss.org/browse/MODCLUSTER-584 Project: mod_cluster Issue Type: Bug Components: Core & Container Integration (Java) Affects Versions: 2.0.0.Alpha1, 1.2.13.Final, 1.3.6.Final Reporter: Bogdan Sikora Assignee: Matus Madzin Priority: Blocker Fix For: 2.0.0.Alpha1, 1.3.8.Final, 1.4.0.Alpha1 This is a regression as 2.4.23-GA works. Reproducer: 1. Set up httpd mod_cluster balancer with Ipv6 address with advertisement on. 2. Set up worker node (tested with EAP) 3. Checks on console if they correctly connect {color:red}Issue:{color} Httpd log: {noformat} [Wed May 10 04:41:31.930288 2017] [core:debug] [pid 15638] vhost.c(796): [client 2620:52:0:105f:5054:ff:fe22:d46f:44474] AH02415: [strict] Invalid host name '2620:52:0:105f:5054:ff:fe22:d46f', problem near: :52:0: [Wed May 10 04:41:31.930332 2017] [core:debug] [pid 15638] vhost.c(891): [client 2620:52:0:105f:5054:ff:fe22:d46f:44474] AH00550: Client sent malformed Host header: 2620:52:0:105f:5054:ff:fe22:d46f:8747 [Wed May 10 04:41:31.930338 2017] [core:debug] [pid 15638] protocol.c(1385): [client 2620:52:0:105f:5054:ff:fe22:d46f:44474] AH00569: client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): / {noformat} EAP6(6.4.10) log: {noformat} 04:41:29,316 ERROR [org.jboss.modcluster] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) MODCLUSTER000042: Error null sending INFO command to 2620:52:0:105f:5054:ff:fe22:d46f/2620:52:0:105f:5054:ff:fe22:d46f:8747, configuration will be reset: null {noformat} Tomcat log: {noformat} May 10, 2017 9:05:25 AM org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler sendRequest ERROR: MODCLUSTER000042: Error null sending INFO command to 2620:52:0:105f:5054:ff:fe22:d46f/2620:52:0:105f:5054:ff:fe22:d46f:8747, configuration will be reset: null {noformat} Issue was reproduced with EAP-7.1.0.DR17 too. Httpd-2.4.23-GA don't have this issue. Issue has some connection to ipv6 as some ipv6 tests passed. Failed on: 2620:52:0:105f:5054:ff:fe22:d46f, 2620:52:0:105f:5054:ff:fe0c:5717, 2620:52:0:105f:5054:ff:feb5:a642, ... Passed on: 2620:52:0:1040:e8f4:2bff:feef:e504, 2620:52:0:1040:440c:3ff:fee1:df02, ...