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Upstream commits:
5bcbfffbd986304861e225302e75fe19b0cc94bf,
986b7374c25212b7e9edd2a730b067f081fb2aca, and
12c69cacc321cb92ac3179ee2240029364101f34
should solve this issue.
It looks like there is still something missing or broken. I am testing with audit-2.8.1-1 and IPv6 connection is refused by remote logging server:
ON CLIENT
=========
# strace -f -p <audisp>
...
[pid 29783] connect(3, {sa_family=AF_INET6, sin6_port=htons(60), inet_pton(AF_INET6, "2620:52:0:25a2:d836:d0ff:fe6e:501d", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 ECONNREFUSED (Connection refused)
...
# journalctl -xe
...
Oct 17 16:28:42 sheep-49.lab.eng.brq.redhat.com audisp-remote[29783]: Error connecting to sheep-29.lab.eng.brq.redhat.
...
ON SERVER
=========
# netstat -ptna | grep :60
tcp 0 0 0.0.0.0:60 0.0.0.0:* LISTEN 28521/auditd
Clearly, auditd is not listening on IPv6. Test scenario is as follows:
* on server
- listen on port 60,
- firewalld is not running, empty iptables
* on client
- active audit-remote plugin with remote_server set to server hostname,
- no firewalld is not running, empty iptables
- server hostname mapped to its global ipv6 address in /etc/hosts
- nsswitch configured to check /etc/hosts only
With IPv4 address set to server hostname in /etc/hosts it works just fine. But with IPv6 connection is dropped by server.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:0760