I have a problem using freeipa version 3.0.0-50 on CentOS release 6.8. The
problem manifests itself as no authentication, and no DNS.
It seems Kerberos just stops responding to requests and requests just get
# netstat -tuna | grep SYN_RECV
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address
tcp 0 0 <server IP>:88 <client1
tcp 0 0 <server IP>:88 <client 2
tcp 0 0 <server IP>:88 <Client 3
tcp 0 0 <server IP>:88 <Client4
tcp 0 0 <server IP>:88 <Client5
Looking at /var/log/krb5kdc.log
The normal activity of AS_REQ and TGS_REC messages just stops. No error
messages. Just no new messages.
In /var/log/messages the named server reports messages like
Mar 1 00:00:23 freeipa named: LDAP error: Can't contact LDAP server
Mar 1 00:00:23 freeipa named: connection to the LDAP server was lost
Mar 1 00:00:23 freeipa named: bind to LDAP server failed: Can't contact
The command "kinit" is totally unresponsive and will time out if you wait long
If I try to restart ipa with "service ipa restart", it hangs on the first
stage, trying to stop DIRSRV.
I have to do a "ps ax" and look for this line.
2758 ? Sl 2:13 /usr/sbin/ns-slapd -D /etc/dirsrv/slapd-MY-REALM -i
/var/run/dirsrv/slapd-MY-REALM.pid -w /var/run/dirsrv/slapd-MY-REALM.startpid
Then I have to a "kill -9" on the pid
Then I can do "service ipa restart"
After that it works ok for a while. "A while" may be a few minutes or several
The filesystem is only 58% used and "free" shows no swap in use so there seems
to be plenty of RAM available.
"top" shows CPU(s) 96% idle with "dirsirv" typically using about 3%CPU at most
I've no idea why this keeps happening, everything looks ok then it just stops
System Administrator- Cox Automotive Software
Cox Automotive group of companies within the UK comprises: Cox Automotive UK
Limited (registered number: 03183918), Manheim Limited (registered number:
00448761), Cox Automotive Retail Solutions Limited (registered number:
02838588), Motors.co.uk Limited (registered number: 05975777), and Real Time
Communications Limited (registered number: 04277845). Each of these companies
is registered in England and Wales with the registered office address of
Central House, Leeds Road, Rothwell, Leeds LS26 0JE. The Cox Automotive group
of companies within the UK operates under various brand/trading names including
Cox Automotive UK, Manheim Inspection Services, Manheim Auctions, Modix, Xtime
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