veritas Problem:

Error message seen when running "vxdisk list" after BCVs had been presented to a system:

VxVM vxdisk ERROR V-5-1-684 IPC failure:Configuration daemon is not
accessible.

It transpired that vxconfigd had core dumped.

Error Message
A change to the hostname had been made recently, and the core dump was also seen via this same sequence:

# vxconfigd -k
# vxconfigd -r reset
# vxdctl init <hostname>

bash-3.00# vxconfigd
bash-3.00# vxdctl init
bash-3.00# vxdctl enable
bash-3.00# vxdisk -e list
DEVICE   TYPE   DISK   GROUP STATUS  OS_NATIVE_NAME   ATTR
disk_0 auto:ZFS  -     -      ZFS     c1t0d0s2         -

[root@server1 named]# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=server1
getway=192.168.1.1

[root@server1 named]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.149   host1
192.168.0.128   host2
192.168.10.25 nserv
192.168.1.12 server1

[root@server1 named]# hostname
server1

[root@server1 etc]# cat named.conf 
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
options {
 listen-on port 53 { 127.0.0.1; };
 listen-on-v6 port 53 { ::1; };
 directory  "/var/named";
 dump-file  "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        memstatistics-file "/var/named/data/named_mem_stats.txt";
 allow-query     { localhost; };
 recursion yes;
 dnssec-enable yes;
 dnssec-validation yes;
 dnssec-lookaside auto;
 /* Path to ISC DLV key */
 bindkeys-file "/etc/named.iscdlv.key";
 managed-keys-directory "/var/named/dynamic";
};
logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
zone "." IN {
 type hint;
 file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
zone "mohan.com" IN {
        type master;
        file "mohan.com";
        allow-update { none; };
};
# open named.rfc1912.zones this file and copy line no 31 to 35 and paste on named.conf then configure the paste line.

[root@server1 etc]# cat named.rfc1912.zones 
// named.rfc1912.zones:
//
// Provided by Red Hat caching-nameserver package 
//
// ISC BIND named zone configuration for zones recommended by
// RFC 1912 section 4.1 : localhost TLDs and address zones
// and http://www.ietf.org/internet-drafts/draft-ietf-dnsop-default-local-zones-02.txt
// (c)2007 R W Franks
// 
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
zone "localhost.localdomain" IN {
 type master;
 file "named.localhost";
 allow-update { none; };
};
zone "localhost" IN {
 type master;
 file "named.localhost";
 allow-update { none; };
};
zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
 type master;
 file "named.loopback";
 allow-update { none; };
};
zone "1.0.0.127.in-addr.arpa" IN {     ############ copy this ############
 type master;
 file "named.loopback";
 allow-update { none; };
};
zone "0.in-addr.arpa" IN {
 type master;
 file "named.empty";
 allow-update { none; };
};

vi /etc/named.conf
include "/etc/named.rfc1912.zones";
zone "int.com" IN {
        type master;
        file "int.com";
        allow-update { none; };
};
[root@server1 etc]# cd /var/named/
[root@server1 named]# ls -l
total 32
drwxrwx---. 2 named named 4096 Apr  4 08:18 data
drwxrwx---. 2 named named 4096 Apr  4 06:34 dynamic
 -rw-r-----. 1 root  named 2075 Apr 23  2014 named.ca
-rw-r-----. 1 root  named  152 Dec 15  2009 named.empty
-rw-r-----. 1 root  named  152 Jun 21  2007 named.localhost
-rw-r-----. 1 root  named  168 Dec 15  2009 named.loopback
drwxrwx---. 2 named named 4096 Mar 10 08:55 slaves

[root@server1 named]# cat named.localhost 
$TTL 1D
@ IN SOA @ rname.invalid. (
     0 ; serial
     1D ; refresh
     1H ; retry
     1W ; expire
     3H ) ; minimum
 NS @
 A 127.0.0.1
 AAAA ::1

[root@server1 named]# cp -v named.localhost int.com
`named.localhost' -> `int.com'

[root@server1 named]# ls -l
total 32
drwxrwx---. 2 named named 4096 Apr  4 06:33 data
drwxrwx---. 2 named named 4096 Apr  4 06:34 dynamic
-rw-r-----. 1 root  root   152 Apr  4 07:58 int.com
-rw-r-----. 1 root  named 2075 Apr 23  2014 named.ca
-rw-r-----. 1 root  named  152 Dec 15  2009 named.empty
-rw-r-----. 1 root  named  152 Jun 21  2007 named.localhost
-rw-r-----. 1 root  named  168 Dec 15  2009 named.loopback
drwxrwx---. 2 named named 4096 Mar 10 08:55 slave

[root@server1 named]# cat int.com 
$TTL 60
@ IN SOA int.com. dns-admin.int.com. (
     201504 ; serial
     1D ; refresh
     1H ; retry
     1W ; expire
     3H ) ; minimum
@       IN NS server1.int.com.
server1 IN A  192.168.1.12
zone name = int.com        ############################
email= dns-domain.int.com                ##############
[root@server1 named]# service named restart
Stopping named:                                            [  OK  ]
Starting named:                                            [  OK  ]
[root@server1 named]# ls -l data/
total 4
-rw-r--r--. 1 named named 1908 Apr  4 08:40 named.run

[root@server1 named]# service named restart
Stopping named:                                            [  OK  ]
Starting named:                                            [  OK  ]

[root@server1 named]# cat data/named.run 
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201504
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201504)

[root@server1 named]# dig @localhost server1.int.com
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2 <<>> @localhost server1.int.com
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 52998
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;server1.int.com.  IN A
;; ANSWER SECTION:
server1.int.com. 5184000 IN A 192.168.1.12
;; AUTHORITY SECTION:
int.com.  5184000 IN NS server1.int.com.
;; Query time: 0 msec
;; SERVER: ::1#53(::1)
;; WHEN: Sat Apr  4 08:56:54 2015
;; MSG SIZE  rcvd: 63

[root@server1 named]# cat int.com 
$TTL 60D
@ IN SOA int.com. dns-admin.int.com. (
     201505 ; serial
     1D ; refresh
     1H ; retry
     1W ; expire
     3H ) ; minimum
@       IN NS server1.int.com.
server1 IN A  192.168.1.12
www IN CNAME server1.int.com
cat

[root@server1 named]# cat data/named.run 
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201504
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201504)
received control channel command 'stop'
shutting down: flushing changes
stopping command channel on 127.0.0.1#953
stopping command channel on ::1#953
no longer listening on 127.0.0.1#53
no longer listening on ::1#53
exiting
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201505
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201505)

[root@server1 named]# cat int.com 
$TTL 60D
@ IN SOA int.com. dns-admin.int.com. (
     201506 ; serial
     1D ; refresh
     1H ; retry
     1W ; expire
     3H ) ; minimum
@       IN NS server1.int.com.
 IN MX 1 server1.int.com
server1 IN A  192.168.1.12
www IN CNAME server1.int.com

root@server1 named]# service named reload
Reloading named:                                           [  OK  ]

[root@server1 named]# cat data/named.run 
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201504
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201504)
received control channel command 'stop'
shutting down: flushing changes
stopping command channel on 127.0.0.1#953
stopping command channel on ::1#953
no longer listening on 127.0.0.1#53
no longer listening on ::1#53
exiting
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201505
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201505)
received control channel command 'reload'
loading configuration from '/etc/named.conf'
reading built-in trusted keys from file '/etc/named.iscdlv.key'
using default UDP/IPv4 port range: [1024, 65535]
using default UDP/IPv6 port range: [1024, 65535]
sizing zone task pool based on 7 zones
using built-in DLV key for view _default
Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
reloading configuration succeeded
reloading zones succeeded
zone int.com/IN: int.com/MX 'server1.int.com.int.com' has no address records (A or AAAA)
zone int.com/IN: loaded serial 201506
zone int.com/IN: sending notifies (serial 201506)

[root@server1 named]# dig @localhost int.com mx
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2 <<>> @localhost int.com mx
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9593
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;int.com.   IN MX
;; ANSWER SECTION:
int.com.  5184000 IN MX 1 server1.int.com.int.com.
;; AUTHORITY SECTION:
int.com.  5184000 IN NS server1.int.com.
;; ADDITIONAL SECTION:
server1.int.com. 5184000 IN A 192.168.1.12
;; Query time: 0 msec
;; SERVER: ::1#53(::1)
;; WHEN: Sat Apr  4 09:18:27 2015
;; MSG SIZE  rcvd: 95

[root@server1 named]# dig @localhost int.com NS
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2 <<>> @localhost int.com NS
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35612
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:
;int.com.   IN NS
;; ANSWER SECTION:
int.com.  5184000 IN NS server1.int.com.
;; ADDITIONAL SECTION:
server1.int.com. 5184000 IN A 192.168.1.12
;; Query time: 0 msec
;; SERVER: ::1#53(::1)
;; WHEN: Sat Apr  4 09:19:52 2015
;; MSG SIZE  rcvd: 63

[root@server1 named]# dig @localhost www.int.com 
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2 <<>> @localhost www.int.com
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33173
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;www.int.com.   IN A
;; ANSWER SECTION:
www.int.com.  5184000 IN CNAME server1.int.com.int.com.
;; AUTHORITY SECTION:
int.com.  10800 IN SOA int.com. dns-admin.int.com. 201506 86400 3600 604800 10800
;; Query time: 0 msec
;; SERVER: ::1#53(::1)
;; WHEN: Sat Apr  4 09:21:33 2015
;; MSG SIZE  rcvd: 105

[root@server1 named]# cat int.com 
$TTL 60D
@ IN SOA int.com. dns-admin.int.com. (
     201507 ; serial
     1D ; refresh
     1H ; retry
     1W ; expire
     3H ) ; minimum
@       IN NS server1.int.com.
 IN MX 1 server1.int.com
 IN MX 2 server2.int.com
server1 IN A  192.168.1.12
www IN CNAME server1.int.com

[root@server1 named]# cat data/named.run 
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201504
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201504)
received control channel command 'stop'
shutting down: flushing changes
stopping command channel on 127.0.0.1#953
stopping command channel on ::1#953
no longer listening on 127.0.0.1#53
no longer listening on ::1#53
exiting
zone 0.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
zone int.com/IN: loaded serial 201505
zone localhost.localdomain/IN: loaded serial 0
zone localhost/IN: loaded serial 0
managed-keys-zone ./IN: loaded serial 5
running
zone int.com/IN: sending notifies (serial 201505)
received control channel command 'reload'
loading configuration from '/etc/named.conf'
reading built-in trusted keys from file '/etc/named.iscdlv.key'
using default UDP/IPv4 port range: [1024, 65535]
using default UDP/IPv6 port range: [1024, 65535]
sizing zone task pool based on 7 zones
using built-in DLV key for view _default
Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
reloading configuration succeeded
reloading zones succeeded
zone int.com/IN: int.com/MX 'server1.int.com.int.com' has no address records (A or AAAA)
zone int.com/IN: loaded serial 201506
zone int.com/IN: sending notifies (serial 201506)
received control channel command 'reload'
loading configuration from '/etc/named.conf'
reading built-in trusted keys from file '/etc/named.iscdlv.key'
using default UDP/IPv4 port range: [1024, 65535]
using default UDP/IPv6 port range: [1024, 65535]
sizing zone task pool based on 7 zones
using built-in DLV key for view _default
Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
reloading configuration succeeded
reloading zones succeeded
zone int.com/IN: int.com/MX 'server1.int.com.int.com' has no address records (A or AAAA)
zone int.com/IN: int.com/MX 'server2.int.com.int.com' has no address records (A or AAAA)
zone int.com/IN: loaded serial 201507
zone int.com/IN: sending notifies (serial 201507)

[root@server1 named]# nslookup server1.int.com
Server:  192.168.1.1
Address: 192.168.1.1#53
Non-authoritative answer:
Name: server1.int.com
Address: 54.244.91.210

/etc/passwd
 One of the most critical of all files in Linux is /etc/passwd. All user accounts are stored here, with identifying information like so: 
 username:password:userID:groupID:realname:homedirectory:shell 
 For example, a user “fred” who was added as user 200 and group 100 has an entry that might look like this: 
 fred:x:200:100:Fred Smith:/home/fred:/bin/bash