The commands to allow multicast traffic with firewalld are: firewall-cmd –permanent –direct –add-rule ipv4 filter INPUT 0 -m pkttype –pkt-type multicast -j ACCEPT firewall-cmd –permanent –direct –add-rule ipv6 filter INPUT 0 -m pkttype –pkt-type multicast -j ACCEPT Cheers, TK  

Getting this? [06/Jul/2019 19:49:28 +0000] 2245 MainThread agent        ERROR    Heartbeating to cm-r01nn01.mws.mds.xyz:7182 failed. Traceback (most recent call last):   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1387, in _send_heartbeat     self.cfg.max_cert_depth)   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/https.py", line 139, in __init__     self.conn.connect()   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/httpslib.py", line 69, in connect     sock.connect((self.host, self.port))   File […]

Getting this error when connecting cloudera-scm-agents to the server? [06/Jul/2019 16:16:55 +0000] 23442 MainThread agent        ERROR    Heartbeating to srv-c01.mws.mds.xyz:17182 failed. Traceback (most recent call last):   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1387, in _send_heartbeat     self.cfg.max_cert_depth)   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/https.py", line 139, in __init__     self.conn.connect()   File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/httpslib.py", line 69, in […]

Getting this? haproxy-systemd-wrapper[17526]: [WARNING] 186/151058 (17527) : Setting tune.ssl.default-dh-param to 1024 by default, if your workload permits it you should set it to at least 2048. Please set a value >= 1024 to make this warning disappear. add this to your haproxy config: global         log             […]